feat(certificate): update footer image

Reviewed-on: #49
Reviewed-by: Philipp Dormann <philipp@noreply.git.odit.services>

.air.linux.toml

@@ -0,0 +1,46 @@
+root = "."
+testdata_dir = "testdata"
+tmp_dir = "tmp"
+
+[build]
+  args_bin = []
+  bin = "tmp\\main"
+  cmd = "go build -o ./tmp/main ."
+  delay = 1000
+  exclude_dir = ["assets", "tmp", "vendor", "testdata"]
+  exclude_file = []
+  exclude_regex = ["_test.go"]
+  exclude_unchanged = false
+  follow_symlink = false
+  full_bin = ""
+  include_dir = []
+  include_ext = ["go", "tpl", "tmpl", "html"]
+  include_file = []
+  kill_delay = "0s"
+  log = "build-errors.log"
+  poll = false
+  poll_interval = 0
+  post_cmd = []
+  pre_cmd = []
+  rerun = false
+  rerun_delay = 500
+  send_interrupt = false
+  stop_on_error = false
+
+[color]
+  app = ""
+  build = "yellow"
+  main = "magenta"
+  runner = "green"
+  watcher = "cyan"
+
+[log]
+  main_only = false
+  time = false
+
+[misc]
+  clean_on_exit = false
+
+[screen]
+  clear_on_rebuild = false
+  keep_scroll = true

.dockerignore

@@ -1,3 +1,3 @@
 tmp
 docker-compose.yaml
-.air.toml
+.air*.toml

.env

@@ -0,0 +1,23 @@
+LOGLEVEL=debug
+PORT=3000
+PRODUCION=false
+APIKEY=lfk
+EVENTNAME=Lauf für Kaya! 2025
+CURRENCYSYMBOL=€
+GOTENBERG_BASEURL=http://localhost:3001
+REDIS_ADDR=localhost:6379
+
+CARD_SUBTITLE=Kaya ist cool
+CARD_BARCODEFORMAT=ean13
+# CARD_BARCODEPREFIX=
+
+SPONSORING_RECEIPTMINIMUM=40
+SPONSORING_DISCLAIMER=Kaya ist cool, aber pass auf, dass du nicht zu viel Geld sammelst!
+SPONSORING_BARCODEFORMAT=code128
+# SPONSORING_BARCODEPREFIX=
+
+CERTIFICATE_FOOTER=Kaya ist cool, danke für deine Unterstützung!
+
+SEPA_BIC=FNOMDEB2
+SEPA_NAME=ODIT.Services
+SEPA_IBAN=DE25100180000690238989

.gitea/workflows/dev.yaml

@@ -0,0 +1,27 @@
+name: Build latest image
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-container:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Login to registry
+        uses: docker/login-action@v3
+        with:
+          registry: registry.odit.services
+          username: ${{ vars.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          tags: |
+            ${{ vars.REGISTRY }}/lfk/document-server:latest
+          platforms: linux/amd64,linux/arm64

.gitea/workflows/release.yaml

@@ -0,0 +1,27 @@
+name: Build release images
+on:
+  push:
+    tags:
+      - "*.*.*"
+
+jobs:
+  build-container:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Login to registry
+        uses: docker/login-action@v3
+        with:
+          registry: registry.odit.services
+          username: ${{ vars.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          tags: |
+            ${{ vars.REGISTRY }}/lfk/document-server:${{ github.ref_name }}
+          platforms: linux/amd64,linux/arm64

Dockerfile

@@ -10,5 +10,6 @@ RUN CGO_ENABLED=0 GOOS=linux go build -o server
 
 FROM scratch
 COPY --from=builder /app/server /server
+COPY static /static
 ADD https://curl.haxx.se/ca/cacert.pem /etc/ssl/certs/ca-certificates.crt
 ENTRYPOINT [ "/server" ]

README.md

@@ -2,7 +2,7 @@
 
 ## Features
 
-- 📝 HTML pdf templates
+- 📝 HTML templates for pdf generation
 - 📚 OpenAPI/Swagger documentation
 - ⚡ High-performance with go and gotenberg
 
@@ -12,9 +12,6 @@
 # Install dependencies
 go mod download
 
-# Generate the swagger docs
-swag init
-
 # Run the server
 air
 ```
@@ -29,3 +26,71 @@ The project uses:
 
 - 🏃‍♂️ go as the language and build tool
 - 🌐 gofiber for the web framework
+- 📦 air for live reload
+- 📝 swaggo for API documentation
+- 📄 gotenberg for HTML to PDF conversion
+
+### 📦 Use docker compose for external dependencies
+
+```shell
+docker compose -f docker-compose.dev.yaml up
+```
+
+### 🏃 Run via air
+
+> Install air via `go install github.com/air-verse/air@latest`
+
+```shell
+# With the default air config
+air
+
+# With the config for linux/macOS
+air -c .air.linux.toml
+
+# With the config for windows
+air -c .air.windows.toml
+```
+
+### ✒️ Update the swagger docs
+
+> Install swag via `go install github.com/swaggo/swag/cmd/swag@latest`
+
+```shell
+swag init
+```
+
+### 🐋 Build container
+
+```shell
+# single arch
+docker build -t registry.odit.services/lfk/document-server:latest .
+
+# multiarch
+docker buildx build --platform=linux/amd64,linux/arm64 -t registry.odit.services/lfk/document-server:latest --push .
+```
+
+## ⏱️ Benchmarks
+
+### Barcode Generation
+
+- Requests: 10000
+- Concurrency: Unlimited
+- Data: `123456789123`
+- Width: 1000
+- Height: 500
+
+#### No cache (cold start)
+
+| Format  | Data           | Requests/sec | Slowest | Fastest | Average |
+| ------- | -------------- | ------------ | ------- | ------- | ------- |
+| Code128 | `123456789123` | 763.3996     | 0.7995  | 0.0172  | 0.0654  |
+| EAN13   | `123456789123` | 767.1170     | 0.7607  | 0.0171  | 0.0651  |
+| QR      | `123456789123` | 683.8472     | 0.6528  | 0.0178  | 0.0730  |
+
+#### Redis cache (warm start)
+
+| Format  | Data           | Requests/sec | Slowest | Fastest | Average |
+| ------- | -------------- | ------------ | ------- | ------- | ------- |
+| Code128 | `123456789123` | 15611.5521   | 0.0965  | 0.0006  | 0.0032  |
+| EAN13   | `123456789123` | 14985.4401   | 0.0925  | 0.0006  | 0.0033  |
+| QR      | `123456789123` | 14306.2540   | 0.1143  | 0.0005  | 0.0035  |

docker-compose.dev.yaml

@@ -0,0 +1,9 @@
+services:
+  gotenberg:
+    image: gotenberg/gotenberg:8
+    ports:
+      - "3001:3000"
+  redis:
+    image: docker.dragonflydb.io/dragonflydb/dragonfly
+    ports:
+      - "6379:6379"

docker-compose.yaml

@@ -1,5 +1,15 @@
 services:
+  document-server:
+    build: .
+    ports:
+      - "3000:3000"
+    volumes:
+      - ./docker.env:/.env
   gotenberg:
     image: gotenberg/gotenberg:8
     ports:
       - "3001:3000"
+  redis:
+    image: docker.dragonflydb.io/dragonflydb/dragonfly
+    ports:
+      - "6379:6379"

docker.env

@@ -0,0 +1,18 @@
+PORT=3000
+PRODUCION=false
+APIKEY=lfk
+EVENTNAME=Lauf für Kaya! 2025
+CURRENCYSYMBOL=€
+GOTENBERG_BASEURL=http://gotenberg:3000
+REDIS_ADDR=redis:6379
+
+CARD_SUBTITLE=Kaya ist cool
+CARD_BARCODEFORMAT=ean13
+# CARD_BARCODEPREFIX=
+
+SPONSOING_RECEIPTMINIMUM=10
+SPONSORING_DISCLAIMER=Kaya ist cool, aber pass auf, dass du nicht zu viel Geld sammelst!
+SPONSORING_BARCODEFORMAT=code128
+# SPONSORING_BARCODEPREFIX=
+
+CERTIFICATE_FOOTER=Kaya ist cool, danke für deine Unterstützung!

docs/docs.go

@@ -9,14 +9,88 @@ const docTemplate = `{
     "info": {
         "description": "{{escape .Description}}",
         "title": "{{.Title}}",
-        "contact": {},
+        "termsOfService": "https://lauf-fuer-kaya.de/datenschutz",
+        "contact": {
+            "name": "ODIT.Services UG (haftungsbeschränkt)",
+            "url": "https://odit.services",
+            "email": "info@odit.services"
+        },
+        "license": {
+            "name": "CC BY-NC-SA 4.0"
+        },
         "version": "{{.Version}}"
     },
     "host": "{{.Host}}",
     "basePath": "{{.BasePath}}",
     "paths": {
-        "/cards": {
+        "/v1/barcodes/{type}/{content}": {
+            "get": {
+                "description": "Generate barcodes based on the provided data",
+                "produces": [
+                    "image/png"
+                ],
+                "tags": [
+                    "barcodes"
+                ],
+                "summary": "Generate barcodes",
+                "parameters": [
+                    {
+                        "enum": [
+                            "ean13",
+                            "code128"
+                        ],
+                        "type": "string",
+                        "description": "Barcode type",
+                        "name": "type",
+                        "in": "path",
+                        "required": true
+                    },
+                    {
+                        "minLength": 1,
+                        "type": "string",
+                        "description": "Barcode content",
+                        "name": "content",
+                        "in": "path",
+                        "required": true
+                    },
+                    {
+                        "maximum": 10000,
+                        "minimum": 1,
+                        "type": "integer",
+                        "default": 1000,
+                        "description": "Barcode width",
+                        "name": "width",
+                        "in": "query"
+                    },
+                    {
+                        "maximum": 10000,
+                        "minimum": 1,
+                        "type": "integer",
+                        "default": 1000,
+                        "description": "Barcode height",
+                        "name": "height",
+                        "in": "query"
+                    },
+                    {
+                        "maximum": 100,
+                        "minimum": 0,
+                        "type": "integer",
+                        "default": 10,
+                        "description": "Padding around the barcode (included in image size)",
+                        "name": "padding",
+                        "in": "query"
+                    }
+                ],
+                "responses": {}
+            }
+        },
+        "/v1/pdfs/cards": {
             "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
                 "description": "Generate cards based on the provided data",
                 "consumes": [
                     "application/json"
@@ -25,7 +99,7 @@ const docTemplate = `{
                     "application/pdf"
                 ],
                 "tags": [
-                    "cards"
+                    "pdfs"
                 ],
                 "summary": "Generate runner cards",
                 "parameters": [
@@ -42,8 +116,45 @@ const docTemplate = `{
                 "responses": {}
             }
         },
-        "/contracts": {
+        "/v1/pdfs/certificates": {
             "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
+                "description": "Generate certificates based on the provided data",
+                "consumes": [
+                    "application/json"
+                ],
+                "produces": [
+                    "application/pdf"
+                ],
+                "tags": [
+                    "pdfs"
+                ],
+                "summary": "Generate runner certificates",
+                "parameters": [
+                    {
+                        "description": "Certificate data",
+                        "name": "data",
+                        "in": "body",
+                        "required": true,
+                        "schema": {
+                            "$ref": "#/definitions/models.CertificateRequest"
+                        }
+                    }
+                ],
+                "responses": {}
+            }
+        },
+        "/v1/pdfs/contracts": {
+            "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
                 "description": "Generate a contract based on the provided data",
                 "consumes": [
                     "application/json"
@@ -52,7 +163,7 @@ const docTemplate = `{
                     "application/pdf"
                 ],
                 "tags": [
-                    "contracts"
+                    "pdfs"
                 ],
                 "summary": "Generate a contract",
                 "parameters": [
@@ -73,12 +184,18 @@ const docTemplate = `{
     "definitions": {
         "models.Card": {
             "type": "object",
+            "required": [
+                "code",
+                "id",
+                "runner"
+            ],
             "properties": {
                 "code": {
                     "type": "string"
                 },
                 "enabled": {
-                    "type": "boolean"
+                    "type": "boolean",
+                    "default": true
                 },
                 "id": {
                     "type": "integer"
@@ -90,6 +207,10 @@ const docTemplate = `{
         },
         "models.CardRequest": {
             "type": "object",
+            "required": [
+                "cards",
+                "locale"
+            ],
             "properties": {
                 "cards": {
                     "type": "array",
@@ -106,8 +227,34 @@ const docTemplate = `{
                 }
             }
         },
+        "models.CertificateRequest": {
+            "type": "object",
+            "required": [
+                "locale",
+                "runners"
+            ],
+            "properties": {
+                "locale": {
+                    "type": "string",
+                    "enum": [
+                        "en",
+                        "de"
+                    ]
+                },
+                "runners": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/models.RunnerWithDonations"
+                    }
+                }
+            }
+        },
         "models.ContractRequest": {
             "type": "object",
+            "required": [
+                "locale",
+                "runners"
+            ],
             "properties": {
                 "locale": {
                     "type": "string",
@@ -124,22 +271,83 @@ const docTemplate = `{
                 }
             }
         },
-        "models.Group": {
+        "models.DistanceDonation": {
             "type": "object",
+            "required": [
+                "amount_per_distance",
+                "donor",
+                "id"
+            ],
             "properties": {
+                "amount": {
+                    "type": "integer"
+                },
+                "amount_per_distance": {
+                    "type": "integer"
+                },
+                "donor": {
+                    "$ref": "#/definitions/models.Donor"
+                },
                 "id": {
                     "type": "integer"
                 },
+                "paid_amount": {
+                    "type": "integer"
+                }
+            }
+        },
+        "models.Donor": {
+            "type": "object",
+            "required": [
+                "first_name",
+                "id",
+                "last_name"
+            ],
+            "properties": {
+                "first_name": {
+                    "type": "string"
+                },
+                "id": {
+                    "type": "integer"
+                },
+                "last_name": {
+                    "type": "string"
+                },
+                "middle_name": {
+                    "type": "string"
+                }
+            }
+        },
+        "models.Group": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
                 "name": {
                     "type": "string"
                 },
                 "parent_group": {
-                    "$ref": "#/definitions/models.Group"
+                    "type": "object",
+                    "required": [
+                        "name"
+                    ],
+                    "properties": {
+                        "name": {
+                            "type": "string"
+                        }
+                    }
                 }
             }
         },
         "models.Runner": {
             "type": "object",
+            "required": [
+                "first_name",
+                "group",
+                "id",
+                "last_name"
+            ],
             "properties": {
                 "first_name": {
                     "type": "string"
@@ -157,6 +365,55 @@ const docTemplate = `{
                     "type": "string"
                 }
             }
+        },
+        "models.RunnerWithDonations": {
+            "type": "object",
+            "required": [
+                "distance",
+                "first_name",
+                "group",
+                "id",
+                "last_name"
+            ],
+            "properties": {
+                "distance": {
+                    "type": "integer"
+                },
+                "distance_donations": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/models.DistanceDonation"
+                    }
+                },
+                "first_name": {
+                    "type": "string"
+                },
+                "group": {
+                    "$ref": "#/definitions/models.Group"
+                },
+                "id": {
+                    "type": "integer"
+                },
+                "last_name": {
+                    "type": "string"
+                },
+                "middle_name": {
+                    "type": "string"
+                },
+                "total_donations": {
+                    "type": "integer"
+                },
+                "total_per_distance": {
+                    "type": "integer"
+                }
+            }
+        }
+    },
+    "securityDefinitions": {
+        "ApiKeyAuth": {
+            "type": "apiKey",
+            "name": "key",
+            "in": "query"
         }
     }
 }`

docs/swagger.json

@@ -3,11 +3,85 @@
     "info": {
         "description": "This is the API documentation for the LfK Document Server - a tool for pdf generation.",
         "title": "LfK Document Server API",
-        "contact": {}
+        "termsOfService": "https://lauf-fuer-kaya.de/datenschutz",
+        "contact": {
+            "name": "ODIT.Services UG (haftungsbeschränkt)",
+            "url": "https://odit.services",
+            "email": "info@odit.services"
+        },
+        "license": {
+            "name": "CC BY-NC-SA 4.0"
+        }
     },
     "paths": {
-        "/cards": {
+        "/v1/barcodes/{type}/{content}": {
+            "get": {
+                "description": "Generate barcodes based on the provided data",
+                "produces": [
+                    "image/png"
+                ],
+                "tags": [
+                    "barcodes"
+                ],
+                "summary": "Generate barcodes",
+                "parameters": [
+                    {
+                        "enum": [
+                            "ean13",
+                            "code128"
+                        ],
+                        "type": "string",
+                        "description": "Barcode type",
+                        "name": "type",
+                        "in": "path",
+                        "required": true
+                    },
+                    {
+                        "minLength": 1,
+                        "type": "string",
+                        "description": "Barcode content",
+                        "name": "content",
+                        "in": "path",
+                        "required": true
+                    },
+                    {
+                        "maximum": 10000,
+                        "minimum": 1,
+                        "type": "integer",
+                        "default": 1000,
+                        "description": "Barcode width",
+                        "name": "width",
+                        "in": "query"
+                    },
+                    {
+                        "maximum": 10000,
+                        "minimum": 1,
+                        "type": "integer",
+                        "default": 1000,
+                        "description": "Barcode height",
+                        "name": "height",
+                        "in": "query"
+                    },
+                    {
+                        "maximum": 100,
+                        "minimum": 0,
+                        "type": "integer",
+                        "default": 10,
+                        "description": "Padding around the barcode (included in image size)",
+                        "name": "padding",
+                        "in": "query"
+                    }
+                ],
+                "responses": {}
+            }
+        },
+        "/v1/pdfs/cards": {
             "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
                 "description": "Generate cards based on the provided data",
                 "consumes": [
                     "application/json"
@@ -16,7 +90,7 @@
                     "application/pdf"
                 ],
                 "tags": [
-                    "cards"
+                    "pdfs"
                 ],
                 "summary": "Generate runner cards",
                 "parameters": [
@@ -33,8 +107,45 @@
                 "responses": {}
             }
         },
-        "/contracts": {
+        "/v1/pdfs/certificates": {
             "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
+                "description": "Generate certificates based on the provided data",
+                "consumes": [
+                    "application/json"
+                ],
+                "produces": [
+                    "application/pdf"
+                ],
+                "tags": [
+                    "pdfs"
+                ],
+                "summary": "Generate runner certificates",
+                "parameters": [
+                    {
+                        "description": "Certificate data",
+                        "name": "data",
+                        "in": "body",
+                        "required": true,
+                        "schema": {
+                            "$ref": "#/definitions/models.CertificateRequest"
+                        }
+                    }
+                ],
+                "responses": {}
+            }
+        },
+        "/v1/pdfs/contracts": {
+            "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
                 "description": "Generate a contract based on the provided data",
                 "consumes": [
                     "application/json"
@@ -43,7 +154,7 @@
                     "application/pdf"
                 ],
                 "tags": [
-                    "contracts"
+                    "pdfs"
                 ],
                 "summary": "Generate a contract",
                 "parameters": [
@@ -64,12 +175,18 @@
     "definitions": {
         "models.Card": {
             "type": "object",
+            "required": [
+                "code",
+                "id",
+                "runner"
+            ],
             "properties": {
                 "code": {
                     "type": "string"
                 },
                 "enabled": {
-                    "type": "boolean"
+                    "type": "boolean",
+                    "default": true
                 },
                 "id": {
                     "type": "integer"
@@ -81,6 +198,10 @@
         },
         "models.CardRequest": {
             "type": "object",
+            "required": [
+                "cards",
+                "locale"
+            ],
             "properties": {
                 "cards": {
                     "type": "array",
@@ -97,8 +218,34 @@
                 }
             }
         },
+        "models.CertificateRequest": {
+            "type": "object",
+            "required": [
+                "locale",
+                "runners"
+            ],
+            "properties": {
+                "locale": {
+                    "type": "string",
+                    "enum": [
+                        "en",
+                        "de"
+                    ]
+                },
+                "runners": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/models.RunnerWithDonations"
+                    }
+                }
+            }
+        },
         "models.ContractRequest": {
             "type": "object",
+            "required": [
+                "locale",
+                "runners"
+            ],
             "properties": {
                 "locale": {
                     "type": "string",
@@ -115,22 +262,83 @@
                 }
             }
         },
-        "models.Group": {
+        "models.DistanceDonation": {
             "type": "object",
+            "required": [
+                "amount_per_distance",
+                "donor",
+                "id"
+            ],
             "properties": {
+                "amount": {
+                    "type": "integer"
+                },
+                "amount_per_distance": {
+                    "type": "integer"
+                },
+                "donor": {
+                    "$ref": "#/definitions/models.Donor"
+                },
                 "id": {
                     "type": "integer"
                 },
+                "paid_amount": {
+                    "type": "integer"
+                }
+            }
+        },
+        "models.Donor": {
+            "type": "object",
+            "required": [
+                "first_name",
+                "id",
+                "last_name"
+            ],
+            "properties": {
+                "first_name": {
+                    "type": "string"
+                },
+                "id": {
+                    "type": "integer"
+                },
+                "last_name": {
+                    "type": "string"
+                },
+                "middle_name": {
+                    "type": "string"
+                }
+            }
+        },
+        "models.Group": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
                 "name": {
                     "type": "string"
                 },
                 "parent_group": {
-                    "$ref": "#/definitions/models.Group"
+                    "type": "object",
+                    "required": [
+                        "name"
+                    ],
+                    "properties": {
+                        "name": {
+                            "type": "string"
+                        }
+                    }
                 }
             }
         },
         "models.Runner": {
             "type": "object",
+            "required": [
+                "first_name",
+                "group",
+                "id",
+                "last_name"
+            ],
             "properties": {
                 "first_name": {
                     "type": "string"
@@ -148,6 +356,55 @@
                     "type": "string"
                 }
             }
+        },
+        "models.RunnerWithDonations": {
+            "type": "object",
+            "required": [
+                "distance",
+                "first_name",
+                "group",
+                "id",
+                "last_name"
+            ],
+            "properties": {
+                "distance": {
+                    "type": "integer"
+                },
+                "distance_donations": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/models.DistanceDonation"
+                    }
+                },
+                "first_name": {
+                    "type": "string"
+                },
+                "group": {
+                    "$ref": "#/definitions/models.Group"
+                },
+                "id": {
+                    "type": "integer"
+                },
+                "last_name": {
+                    "type": "string"
+                },
+                "middle_name": {
+                    "type": "string"
+                },
+                "total_donations": {
+                    "type": "integer"
+                },
+                "total_per_distance": {
+                    "type": "integer"
+                }
+            }
+        }
+    },
+    "securityDefinitions": {
+        "ApiKeyAuth": {
+            "type": "apiKey",
+            "name": "key",
+            "in": "query"
         }
     }
 }

docs/swagger.yaml

@@ -4,11 +4,16 @@ definitions:
       code:
         type: string
       enabled:
+        default: true
         type: boolean
       id:
         type: integer
       runner:
         $ref: '#/definitions/models.Runner'
+    required:
+    - code
+    - id
+    - runner
     type: object
   models.CardRequest:
     properties:
@@ -21,6 +26,24 @@ definitions:
         - en
         - de
         type: string
+    required:
+    - cards
+    - locale
+    type: object
+  models.CertificateRequest:
+    properties:
+      locale:
+        enum:
+        - en
+        - de
+        type: string
+      runners:
+        items:
+          $ref: '#/definitions/models.RunnerWithDonations'
+        type: array
+    required:
+    - locale
+    - runners
     type: object
   models.ContractRequest:
     properties:
@@ -33,15 +56,55 @@ definitions:
         items:
           $ref: '#/definitions/models.Runner'
         type: array
+    required:
+    - locale
+    - runners
+    type: object
+  models.DistanceDonation:
+    properties:
+      amount:
+        type: integer
+      amount_per_distance:
+        type: integer
+      donor:
+        $ref: '#/definitions/models.Donor'
+      id:
+        type: integer
+      paid_amount:
+        type: integer
+    required:
+    - amount_per_distance
+    - donor
+    - id
+    type: object
+  models.Donor:
+    properties:
+      first_name:
+        type: string
+      id:
+        type: integer
+      last_name:
+        type: string
+      middle_name:
+        type: string
+    required:
+    - first_name
+    - id
+    - last_name
     type: object
   models.Group:
     properties:
-      id:
-        type: integer
       name:
         type: string
       parent_group:
-        $ref: '#/definitions/models.Group'
+        properties:
+          name:
+            type: string
+        required:
+        - name
+        type: object
+    required:
+    - name
     type: object
   models.Runner:
     properties:
@@ -55,14 +118,99 @@ definitions:
         type: string
       middle_name:
         type: string
+    required:
+    - first_name
+    - group
+    - id
+    - last_name
+    type: object
+  models.RunnerWithDonations:
+    properties:
+      distance:
+        type: integer
+      distance_donations:
+        items:
+          $ref: '#/definitions/models.DistanceDonation'
+        type: array
+      first_name:
+        type: string
+      group:
+        $ref: '#/definitions/models.Group'
+      id:
+        type: integer
+      last_name:
+        type: string
+      middle_name:
+        type: string
+      total_donations:
+        type: integer
+      total_per_distance:
+        type: integer
+    required:
+    - distance
+    - first_name
+    - group
+    - id
+    - last_name
     type: object
 info:
-  contact: {}
+  contact:
+    email: info@odit.services
+    name: ODIT.Services UG (haftungsbeschränkt)
+    url: https://odit.services
   description: This is the API documentation for the LfK Document Server - a tool
     for pdf generation.
+  license:
+    name: CC BY-NC-SA 4.0
+  termsOfService: https://lauf-fuer-kaya.de/datenschutz
   title: LfK Document Server API
 paths:
-  /cards:
+  /v1/barcodes/{type}/{content}:
+    get:
+      description: Generate barcodes based on the provided data
+      parameters:
+      - description: Barcode type
+        enum:
+        - ean13
+        - code128
+        in: path
+        name: type
+        required: true
+        type: string
+      - description: Barcode content
+        in: path
+        minLength: 1
+        name: content
+        required: true
+        type: string
+      - default: 1000
+        description: Barcode width
+        in: query
+        maximum: 10000
+        minimum: 1
+        name: width
+        type: integer
+      - default: 1000
+        description: Barcode height
+        in: query
+        maximum: 10000
+        minimum: 1
+        name: height
+        type: integer
+      - default: 10
+        description: Padding around the barcode (included in image size)
+        in: query
+        maximum: 100
+        minimum: 0
+        name: padding
+        type: integer
+      produces:
+      - image/png
+      responses: {}
+      summary: Generate barcodes
+      tags:
+      - barcodes
+  /v1/pdfs/cards:
     post:
       consumes:
       - application/json
@@ -77,10 +225,32 @@ paths:
       produces:
       - application/pdf
       responses: {}
+      security:
+      - ApiKeyAuth: []
       summary: Generate runner cards
       tags:
-      - cards
+      - pdfs
-  /contracts:
+  /v1/pdfs/certificates:
+    post:
+      consumes:
+      - application/json
+      description: Generate certificates based on the provided data
+      parameters:
+      - description: Certificate data
+        in: body
+        name: data
+        required: true
+        schema:
+          $ref: '#/definitions/models.CertificateRequest'
+      produces:
+      - application/pdf
+      responses: {}
+      security:
+      - ApiKeyAuth: []
+      summary: Generate runner certificates
+      tags:
+      - pdfs
+  /v1/pdfs/contracts:
     post:
       consumes:
       - application/json
@@ -95,7 +265,14 @@ paths:
       produces:
       - application/pdf
       responses: {}
+      security:
+      - ApiKeyAuth: []
       summary: Generate a contract
       tags:
-      - contracts
+      - pdfs
+securityDefinitions:
+  ApiKeyAuth:
+    in: query
+    name: key
+    type: apiKey
 swagger: "2.0"

go.mod

@@ -14,26 +14,48 @@ require (
 	github.com/KyleBanks/depth v1.2.1 // indirect
 	github.com/andybalholm/brotli v1.1.1 // indirect
 	github.com/boombuler/barcode v1.0.2 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/go-openapi/jsonpointer v0.21.0 // indirect
 	github.com/go-openapi/jsonreference v0.21.0 // indirect
 	github.com/go-openapi/spec v0.21.0 // indirect
 	github.com/go-openapi/swag v0.23.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/klauspost/compress v1.17.11 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/makiuchi-d/gozxing v0.1.1 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/oxplot/papersizes v0.0.0-20181201065918-90a3a5ae1915 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/redis/go-redis/v9 v9.7.0 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/sagikazarmark/locafero v0.4.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.11.0 // indirect
+	github.com/spf13/cast v1.6.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/spf13/viper v1.19.0 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/swaggo/files/v2 v2.0.1 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasthttp v1.57.0 // indirect
 	github.com/valyala/tcplisten v1.0.0 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.10.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
 	golang.org/x/sys v0.27.0 // indirect
+	golang.org/x/text v0.19.0 // indirect
 	golang.org/x/tools v0.27.0 // indirect
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -4,8 +4,15 @@ github.com/andybalholm/brotli v1.1.1 h1:PR2pgnyFznKEugtsUo0xLdDop5SKXd5Qf5ysW+7X
 github.com/andybalholm/brotli v1.1.1/go.mod h1:05ib4cKhjx3OQYUY22hTVd34Bc8upXjOLL2rKwwZBoA=
 github.com/boombuler/barcode v1.0.2 h1:79yrbttoZrLGkL/oOI8hBrUKucwOL0oOjUgEguGMcJ4=
 github.com/boombuler/barcode v1.0.2/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
+github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
+github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
+github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
+github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
+github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
 github.com/go-openapi/jsonpointer v0.21.0 h1:YgdVicSA9vH5RiHs9TZW5oyafXZFc6+2Vc1rr/O9oNQ=
 github.com/go-openapi/jsonpointer v0.21.0/go.mod h1:IUyH9l/+uyhIYQ/PXVA41Rexl+kOkAPDdXEYns6fzUY=
 github.com/go-openapi/jsonreference v0.21.0 h1:Rs+Y7hSXT83Jacb7kFyjn4ijOuVGSvOdF2+tg1TRrwQ=
@@ -20,6 +27,8 @@ github.com/gofiber/swagger v1.1.0 h1:ff3rg1fB+Rp5JN/N8jfxTiZtMKe/9tB9QDc79fPiJKQ
 github.com/gofiber/swagger v1.1.0/go.mod h1:pRZL0Np35sd+lTODTE5The0G+TMHfNY+oC4hM2/i5m8=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
+github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/klauspost/compress v1.17.11 h1:In6xLpyWOi1+C7tXUUWv2ot1QvBjxevKAaI6IXrJmUc=
@@ -28,6 +37,8 @@ github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/magiconair/properties v1.8.7 h1:IeQXZAiQcpL9mgcAe1Nu6cX9LLw6ExEHKjN0VQdvPDY=
+github.com/magiconair/properties v1.8.7/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
 github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
 github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
 github.com/makiuchi-d/gozxing v0.1.1 h1:xxqijhoedi+/lZlhINteGbywIrewVdVv2wl9r5O9S1I=
@@ -39,17 +50,47 @@ github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWE
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
 github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
+github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/oxplot/papersizes v0.0.0-20181201065918-90a3a5ae1915 h1:4WzMzgExTgBfuUQ/HegMf+jcHtH+c3fl7eySUQUbfzg=
 github.com/oxplot/papersizes v0.0.0-20181201065918-90a3a5ae1915/go.mod h1:LJRTnhoARxQgMyT7T9L+ZzwR4OrmyHTy5LPxZEzE1CM=
+github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6Wq+LM=
+github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/redis/go-redis/v9 v9.7.0 h1:HhLSs+B6O021gwzl+locl0zEDnyNkxMtf/Z3NNBMa9E=
+github.com/redis/go-redis/v9 v9.7.0/go.mod h1:f6zhXITC7JUJIlPEiBOTXxJgPLdZcA93GewI7inzyWw=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
 github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
+github.com/sagikazarmark/locafero v0.4.0 h1:HApY1R9zGo4DBgr7dqsTH/JJxLTTsOt7u6keLGt6kNQ=
+github.com/sagikazarmark/locafero v0.4.0/go.mod h1:Pe1W6UlPYUk/+wc/6KFhbORCfqzgYEpgQ3O5fPuL3H4=
+github.com/sagikazarmark/slog-shim v0.1.0 h1:diDBnUNK9N/354PgrxMywXnAwEr1QZcOr6gto+ugjYE=
+github.com/sagikazarmark/slog-shim v0.1.0/go.mod h1:SrcSrq8aKtyuqEI1uvTDTK1arOWRIczQRv+GVI1AkeQ=
+github.com/sourcegraph/conc v0.3.0 h1:OQTbbt6P72L20UqAkXXuLOj79LfEanQ+YQFNpLA9ySo=
+github.com/sourcegraph/conc v0.3.0/go.mod h1:Sdozi7LEKbFPqYX2/J+iBAM6HpqSLTASQIKqDmF7Mt0=
+github.com/spf13/afero v1.11.0 h1:WJQKhtpdm3v2IzqG8VMqrr6Rf3UYpEF239Jy9wNepM8=
+github.com/spf13/afero v1.11.0/go.mod h1:GH9Y3pIexgf1MTIWtNGyogA5MwRIDXGUr+hbWNoBjkY=
+github.com/spf13/cast v1.6.0 h1:GEiTHELF+vaR5dhz3VqZfFSzZjYbgeKDpBxQVS4GYJ0=
+github.com/spf13/cast v1.6.0/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/spf13/viper v1.19.0 h1:RWq5SEjt8o25SROyN3z2OrDB9l7RPd3lwTWU8EcEdcI=
+github.com/spf13/viper v1.19.0/go.mod h1:GQUN9bilAbhU/jgc1bKs99f/suXKeUMct8Adx5+Ntkg=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8=
+github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=
 github.com/swaggo/files/v2 v2.0.1 h1:XCVJO/i/VosCDsJu1YLpdejGsGnBE9deRMpjN4pJLHk=
 github.com/swaggo/files/v2 v2.0.1/go.mod h1:24kk2Y9NYEJ5lHuCra6iVwkMjIekMCaFq/0JQj66kyM=
 github.com/swaggo/swag v1.16.4 h1:clWJtd9LStiG3VeijiCfOVODP6VpHtKdQy9ELFG3s1A=
@@ -62,6 +103,16 @@ github.com/valyala/tcplisten v1.0.0 h1:rBHj/Xf+E1tRGZyWIWwJDiRY0zc1Js+CV5DqwacVS
 github.com/valyala/tcplisten v1.0.0/go.mod h1:T0xQ8SeCZGxckz9qRXTfG43PvQ/mcWh7FwZEA7Ioqkc=
 github.com/xyproto/randomstring v1.0.5 h1:YtlWPoRdgMu3NZtP45drfy1GKoojuR7hmRcnhZqKjWU=
 github.com/xyproto/randomstring v1.0.5/go.mod h1:rgmS5DeNXLivK7YprL0pY+lTuhNQW3iGxZ18UQApw/E=
+go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
+go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
+go.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI=
+go.uber.org/multierr v1.9.0/go.mod h1:X2jQV1h+kxSjClGpnseKVIxpmcjrj7MNnI0bnlfKTVQ=
+go.uber.org/multierr v1.10.0 h1:S0h4aNzvfcFsC3dRF1jLoaov7oRaKqRGC/pUEJ2yvPQ=
+go.uber.org/multierr v1.10.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
+go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
+go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
+golang.org/x/exp v0.0.0-20230905200255-921286631fa9 h1:GoHiUyI/Tp2nVkLI2mCxVkOjsbSXD66ic0XW0js0R9g=
+golang.org/x/exp v0.0.0-20230905200255-921286631fa9/go.mod h1:S2oDrQGGwySpoQPVqRShND87VCbxmc6bL1Yd2oYrm6k=
 golang.org/x/mod v0.22.0 h1:D4nJWe9zXqHOmWqj4VMOJhvzj7bEZg4wEYa759z1pH4=
 golang.org/x/mod v0.22.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=
 golang.org/x/sync v0.9.0 h1:fEo0HyrW1GIgZdpbhCRO0PkJajUS5H9IFUztCgEo2jQ=
@@ -70,12 +121,18 @@ golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.27.0 h1:wBqf8DvsY9Y/2P8gAfPDEYNuS30J4lPHJxXSb/nJZ+s=
 golang.org/x/sys v0.27.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
+golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 golang.org/x/tools v0.27.0 h1:qEKojBykQkQ4EynWy4S8Weg69NumxKdn40Fce3uc/8o=
 golang.org/x/tools v0.27.0/go.mod h1:sUi0ZgbwW9ZPAq26Ekut+weQPR5eIM6GQLQ1Yjm1H0Q=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2/go.mod h1:K8+ghG5WaK9qNqU5K3HdILfMLy1f3aNYFI/wnl100a8=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
+gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

handlers/barcode.go

@@ -0,0 +1,73 @@
+package handlers
+
+import (
+	"strconv"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+// GenerateBarcode godoc
+//
+//	@Summary		Generate barcodes
+//	@Description	Generate barcodes based on the provided data
+//	@Tags			barcodes
+//	@Param			type	path	string	true	"Barcode type"											Enums(ean13, code128)
+//	@Param			content	path	string	true	"Barcode content"										MinLength(1)
+//	@Param			width	query	int		false	"Barcode width"											Minimum(1)	Maximum(10000)	default(1000)
+//	@Param			height	query	int		false	"Barcode height"										Minimum(1)	Maximum(10000)	default(1000)
+//	@Param			padding	query	int		false	"Padding around the barcode (included in image size)"	Minimum(0)	Maximum(100)	default(10)
+//	@Produce		image/png
+//	@Router			/v1/barcodes/{type}/{content} [get]
+func (h *DefaultHandler) GenerateBarcode(c *fiber.Ctx) error {
+
+	logger := h.Logger.Named("GenerateBarcode")
+
+	// Get the type and content from the URL
+	barcodeType := c.Params("type")
+	barcodeContent := c.Params("content")
+
+	// Get the width and height from the query parameters
+	widthStr := c.Query("width", "1000")
+	heightStr := c.Query("height", "1000")
+	paddingStr := c.Query("padding", "10")
+
+	// Convert width and height to integers
+	width, err := strconv.Atoi(widthStr)
+	if err != nil {
+		logger.Errorw("Invalid width parameter", "width", widthStr, "error", err)
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"error": "Invalid width parameter",
+		})
+	}
+
+	height, err := strconv.Atoi(heightStr)
+	if err != nil {
+		logger.Errorw("Invalid height parameter", "height", heightStr, "error", err)
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"error": "Invalid height parameter",
+		})
+	}
+
+	padding, err := strconv.Atoi(paddingStr)
+	if err != nil {
+		logger.Errorw("Invalid padding parameter", "padding", paddingStr, "error", err)
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"error": "Invalid padding parameter",
+		})
+	}
+	logger = logger.With("type", barcodeType, "content", barcodeContent, "width", width, "height", height, "padding", padding)
+
+	// Generate the barcode
+	logger.Info("Generating barcode")
+	barcode, err := h.BarcodeService.GenerateBarcode(barcodeType, barcodeContent, width, height, padding)
+	if err != nil {
+		logger.Errorw("Failed to generate barcode", "error", err)
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": err.Error(),
+		})
+	}
+	logger.Info("Barcode generated")
+
+	c.Set(fiber.HeaderContentType, "image/png")
+	return c.Send(barcode.Bytes())
+}

handlers/card.go

@@ -1,46 +1,52 @@
 package handlers
 
 import (
-	"log"
 	"slices"
 
 	"git.odit.services/lfk/document-server/models"
-	"git.odit.services/lfk/document-server/services"
-	"git.odit.services/lfk/document-server/templates"
 	"github.com/gofiber/fiber/v2"
 )
 
 // GenerateCard godoc
-// @Summary Generate runner cards
+//
-// @Description Generate cards based on the provided data
+//	@Summary		Generate runner cards
-// @Tags cards
+//	@Description	Generate cards based on the provided data
-// @Accept json
+//	@Tags			pdfs
-// @Param data body models.CardRequest true "Card data"
+//	@Accept			json
-// @Produce application/pdf
+//	@Param			data	body	models.CardRequest	true	"Card data"
-// @Router /cards [post]
+//	@Produce		application/pdf
-func GenerateCard(c *fiber.Ctx) error {
+//	@Security		ApiKeyAuth
+//	@Router			/v1/pdfs/cards [post]
+func (h *DefaultHandler) GenerateCard(c *fiber.Ctx) error {
+
+	logger := h.Logger.Named("GenerateCard")
+
 	cardRequest := new(models.CardRequest)
 	if err := c.BodyParser(cardRequest); err != nil {
+		logger.Errorw("Invalid request", "error", err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
 	if !slices.Contains([]string{"en", "de"}, cardRequest.Locale) {
+		logger.Errorw("Invalid locale", "locale", cardRequest.Locale)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
 			"error": "Invalid locale",
 		})
 	}
 
-	generator := services.DefaultTemplater{}
+	logger = logger.With("locale", cardRequest.Locale)
-	templateString, err := templates.GetTemplate(cardRequest.Locale, "card")
+
+	templateString, err := h.StaticService.GetTemplate(cardRequest.Locale, "card")
 	if err != nil {
-		log.Println(err)
+		logger.Errorw("Template not found", "error", err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
 			"error": "Template not found",
 		})
 	}
-	template, err := generator.StringToTemplate(templateString)
+	template, err := h.Templater.StringToTemplate(templateString)
 	if err != nil {
+		logger.Errorw("Error parsing template", "error", err)
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"error": err.Error(),
 		})
@@ -48,28 +54,35 @@ func GenerateCard(c *fiber.Ctx) error {
 
 	genConfig := &models.CardTemplateOptions{
 		CardSegments:  splitCardSegments(cardRequest.Cards),
-		EventName:     "Event name",
+		EventName:     h.Config.EventName,
-		CardSubtitle:  "Card subtitle",
+		CardSubtitle:  h.Config.CardSubtitle,
-		BarcodeFormat: "ean13",
+		BarcodeFormat: h.Config.CardBarcodeFormat,
-		BarcodePrefix: "",
+		BarcodePrefix: h.Config.CardBarcodePrefix,
 	}
 
-	result, err := generator.Execute(template, genConfig)
+	logger.Info("Generating card html")
+	result, err := h.Templater.Execute(template, genConfig)
 	if err != nil {
+		logger.Errorw("Error executing template", "error", err)
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
+	logger.Info("Generated card html")
 	c.Set(fiber.HeaderContentType, "text/html")
-	converter := services.GotenbergConverter{BaseUrl: "http://localhost:3001"}
+
-	pdf, err := converter.ToPdf(result, "a4", false)
+	logger.Info("Converting html to pdf")
+	pdf, err := h.Converter.ToPdf(result, "a4", false)
 	if err != nil {
+		logger.Errorw("Error converting html to pdf", "error", err)
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
+	logger.Info("Converted html to pdf")
 
 	c.Set(fiber.HeaderContentType, "application/pdf")
+	c.Set(fiber.HeaderContentDisposition, "attachment; filename=runner-cards.pdf")
 	return c.Send(pdf)
 }
 

handlers/certificate.go

@@ -1,73 +1,108 @@
 package handlers
 
 import (
-	"log"
 	"slices"
 
 	"git.odit.services/lfk/document-server/models"
-	"git.odit.services/lfk/document-server/services"
-	"git.odit.services/lfk/document-server/templates"
 	"github.com/gofiber/fiber/v2"
 )
 
 // GenerateCertificate godoc
-// @Summary Generate runner certificates
+//
-// @Description Generate certificates based on the provided data
+//	@Summary		Generate runner certificates
-// @Tags certificates
+//	@Description	Generate certificates based on the provided data
-// @Accept json
+//	@Tags			pdfs
-// @Param data body models.CertificateRequest true "Certificate data"
+//	@Accept			json
-// @Produce application/pdf
+//	@Param			data	body	models.CertificateRequest	true	"Certificate data"
-// @Router /certificates [post]
+//	@Produce		application/pdf
-func GenerateCertificate(c *fiber.Ctx) error {
+//	@Security		ApiKeyAuth
+//	@Router			/v1/pdfs/certificates [post]
+func (h *DefaultHandler) GenerateCertificate(c *fiber.Ctx) error {
+
+	logger := h.Logger.Named("GenerateCertificate")
+
 	certificateRequest := new(models.CertificateRequest)
 	if err := c.BodyParser(certificateRequest); err != nil {
+		logger.Errorw("Invalid request", "error", err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
 	if !slices.Contains([]string{"en", "de"}, certificateRequest.Locale) {
+		logger.Errorw("Invalid locale", "locale", certificateRequest.Locale)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
 			"error": "Invalid locale",
 		})
 	}
 
-	generator := services.DefaultTemplater{}
+	logger = logger.With("locale", certificateRequest.Locale)
-	templateString, err := templates.GetTemplate(certificateRequest.Locale, "certificate")
+
+	templateString, err := h.StaticService.GetTemplate(certificateRequest.Locale, "certificate")
 	if err != nil {
-		log.Println(err)
+		logger.Errorw("Template not found", "error", err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
 			"error": "Template not found",
 		})
 	}
-	template, err := generator.StringToTemplate(templateString)
+	template, err := h.Templater.StringToTemplate(templateString)
 	if err != nil {
+		logger.Errorw("Error parsing template", "error", err)
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
 
 	genConfig := &models.CertificateTemplateOptions{
-		Runners:        certificateRequest.Runners,
+		Runners:        addUpRunnerDonations(certificateRequest.Runners),
-		EventName:      "Event name",
+		EventName:      h.Config.EventName,
-		Footer:         "Footer",
+		Footer:         h.Config.CertificateFooter,
-		CurrencySymbol: "€",
+		CurrencySymbol: h.Config.CurrencySymbol,
+		Locale:         certificateRequest.Locale,
+		SepaConfig: &models.SepaConfig{
+			BIC:                h.Config.SepaBic,
+			HolderName:         h.Config.SepaName,
+			IBAN:               h.Config.SepaIban,
+			CurrencyIdentifier: h.Config.CurrencyIdentifier,
+		},
 	}
 
-	result, err := generator.Execute(template, genConfig)
+	logger.Info("Generating certificate html")
+	result, err := h.Templater.Execute(template, genConfig)
 	if err != nil {
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
+	logger.Info("Generated card html")
 	c.Set(fiber.HeaderContentType, "text/html")
-	converter := services.GotenbergConverter{BaseUrl: "http://localhost:3001"}
+
-	pdf, err := converter.ToPdf(result, "a4", false)
+	logger.Info("Converting html to pdf")
+	pdf, err := h.Converter.ToPdf(result, "a4", false)
 	if err != nil {
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
+	logger.Info("Converted html to pdf")
 
 	c.Set(fiber.HeaderContentType, "application/pdf")
+	c.Set(fiber.HeaderContentDisposition, "attachment; filename=certificate.pdf")
 	return c.Send(pdf)
 }
+
+func addUpRunnerDonations(runners []models.RunnerWithDonations) []models.RunnerWithDonations {
+	for i := 0; i < len(runners); i++ {
+		for j := 0; j < len(runners[i].DistanceDonations); j++ {
+			runners[i].TotalDonations += runners[i].DistanceDonations[j].Amount
+			runners[i].TotalPerDistance += runners[i].DistanceDonations[j].AmountPerDistance
+		}
+		if runners[i].Group.ParentGroup.Name != "" {
+			runners[i].CombinedGroupName = runners[i].Group.ParentGroup.Name + " - " + runners[i].Group.Name
+		} else {
+			runners[i].CombinedGroupName = runners[i].Group.Name
+
+		}
+
+	}
+	return runners
+}

handlers/contract.go

@@ -1,80 +1,87 @@
 package handlers
 
 import (
-	"log"
 	"slices"
 
 	"git.odit.services/lfk/document-server/models"
-	"git.odit.services/lfk/document-server/services"
-	"git.odit.services/lfk/document-server/templates"
 	"github.com/gofiber/fiber/v2"
 )
 
 // GenerateContract godoc
-// @Summary Generate a contract
+//
-// @Description Generate a contract based on the provided data
+//	@Summary		Generate a contract
-// @Tags contracts
+//	@Description	Generate a contract based on the provided data
-// @Accept json
+//	@Tags			pdfs
-// @Param data body models.ContractRequest true "Contract data"
+//	@Accept			json
-// @Produce application/pdf
+//	@Param			data	body	models.ContractRequest	true	"Contract data"
-// @Router /contracts [post]
+//	@Produce		application/pdf
-func GenerateContract(c *fiber.Ctx) error {
+//	@Security		ApiKeyAuth
+//	@Router			/v1/pdfs/contracts [post]
+func (h *DefaultHandler) GenerateContract(c *fiber.Ctx) error {
+
+	logger := h.Logger.Named("GenerateContract")
+
 	contract := new(models.ContractRequest)
 	if err := c.BodyParser(contract); err != nil {
+		logger.Errorw("Invalid request", "error", err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
 	if !slices.Contains([]string{"en", "de"}, contract.Locale) {
+		logger.Errorw("Invalid locale", "locale", contract.Locale)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
 			"error": "Invalid locale",
 		})
 	}
 
-	contract.Runners = repeatRunnerArrayItems(contract.Runners, 2)
+	logger = logger.With("locale", contract.Locale)
 
-	generator := services.DefaultTemplater{}
+	templateString, err := h.StaticService.GetTemplate(contract.Locale, "contract")
-	templateString, err := templates.GetTemplate(contract.Locale, "contract")
 	if err != nil {
-		log.Println(err)
+		logger.Errorw("Template not found", "error", err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
 			"error": "Template not found",
 		})
 	}
-	template, err := generator.StringToTemplate(templateString)
+	template, err := h.Templater.StringToTemplate(templateString)
 	if err != nil {
+		logger.Errorw("Error parsing template", "error", err)
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
 
 	genConfig := &models.ContractTemplateOptions{
-		Runners:              contract.Runners,
+		Runners:              repeatRunnerArrayItems(contract.Runners, 2),
-		CurrencySymbol:       "€",
+		CurrencySymbol:       h.Config.CurrencySymbol,
-		Disclaimer:           "This is a disclaimer",
+		Disclaimer:           h.Config.SponosringDisclaimer,
-		ReceiptMinimumAmount: 10,
+		ReceiptMinimumAmount: h.Config.SponsoringReceiptMinimum,
-		EventName:            "Event name",
+		EventName:            h.Config.EventName,
-		SponsoringHeader:     templates.ImageSponsoringHeaderBase64,
+		BarcodeFormat:        h.Config.SponsoringBarcodeFormat,
-		BarcodeFormat:        "ean13",
+		BarcodePrefix:        h.Config.SponsoringBarcodePrefix,
-		BarcodePrefix:        "1",
 	}
 
-	result, err := generator.Execute(template, genConfig)
+	logger.Info("Generating contract html")
+	result, err := h.Templater.Execute(template, genConfig)
 	if err != nil {
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
+	logger.Info("Generated contract html")
 
-	converter := services.GotenbergConverter{BaseUrl: "http://localhost:3001"}
+	logger.Info("Converting html to pdf")
-	pdf, err := converter.ToPdf(result, "a5", true)
+	pdf, err := h.Converter.ToPdf(result, "a5", true)
 	if err != nil {
 		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
 			"error": err.Error(),
 		})
 	}
+	logger.Info("Converted html to pdf")
 
 	c.Set(fiber.HeaderContentType, "application/pdf")
+	c.Set(fiber.HeaderContentDisposition, "attachment; filename=runner-contracts.pdf")
 	return c.Send(pdf)
 }
 

handlers/handlers.go

@@ -0,0 +1,24 @@
+package handlers
+
+import (
+	"git.odit.services/lfk/document-server/models"
+	"git.odit.services/lfk/document-server/services"
+	"github.com/gofiber/fiber/v2"
+	"go.uber.org/zap"
+)
+
+type Handler interface {
+	GenerateCard(*fiber.Ctx) error
+	GenerateContract(*fiber.Ctx) error
+	GenerateCertificate(*fiber.Ctx) error
+	GenerateBarcode(*fiber.Ctx) error
+}
+
+type DefaultHandler struct {
+	Config         *models.Config
+	BarcodeService services.BarcodeService
+	Templater      services.Templater
+	Converter      services.Converter
+	StaticService  services.StaticService
+	Logger         *zap.SugaredLogger
+}

handlers/util.go

@@ -2,6 +2,6 @@ package handlers
 
 import "github.com/gofiber/fiber/v2"
 
-func NotFoundHandler(c *fiber.Ctx) error {
+func (h *DefaultHandler) NotFoundHandler(c *fiber.Ctx) error {
 	return c.Status(404).SendString("Not Found")
 }

main.go

@@ -1,45 +1,198 @@
 package main
 
 import (
-	"flag"
+	"crypto/sha256"
-	"log"
+	"crypto/subtle"
+	"os"
+	"strings"
 
 	"git.odit.services/lfk/document-server/docs" // Correct import path for docs
 	"git.odit.services/lfk/document-server/handlers"
+	"git.odit.services/lfk/document-server/models"
+	"git.odit.services/lfk/document-server/services"
 	"github.com/gofiber/fiber/v2"
+	"github.com/gofiber/fiber/v2/middleware/cors"
+	"github.com/gofiber/fiber/v2/middleware/keyauth"
+	"github.com/gofiber/fiber/v2/middleware/requestid"
 	"github.com/gofiber/swagger"
+	"github.com/redis/go-redis/v9"
+	"github.com/spf13/viper"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
 )
 
 var (
-	port = flag.String("port", ":3000", "Port to listen on")
+	config *models.Config
-	prod = flag.Bool("prod", false, "Enable prefork in Production")
+	logger *zap.SugaredLogger
 )
 
-// @title LfK Document Server API
+func validateAPIKey(c *fiber.Ctx, key string) (bool, error) {
-// @description This is the API documentation for the LfK Document Server - a tool for pdf generation.
+	hashedAPIKey := sha256.Sum256([]byte(config.APIKey))
+	hashedKey := sha256.Sum256([]byte(key))
+
+	if subtle.ConstantTimeCompare(hashedAPIKey[:], hashedKey[:]) == 1 {
+		return true, nil
+	}
+	return false, keyauth.ErrMissingOrMalformedAPIKey
+}
+
+func loadEnv() error {
+
+	viper.SetDefault("LOGLEVEL", "INFO")
+	viper.SetDefault("PRODUCION", false)
+	viper.SetDefault("PORT", "3000")
+	viper.SetDefault("APIKEY", "lfk")
+	viper.SetDefault("EVENTNAME", "Demo Event")
+	viper.SetDefault("CURRENCYSYMBOL", "€")
+	viper.SetDefault("CURRENCYIDENTIFIER", "EUR")
+	viper.SetDefault("CARD_SUBTITLE", "Runner Card")
+	viper.SetDefault("CARD_BARCODEFORMAT", "ean13")
+	viper.SetDefault("CARD_BARCODEPREFIX", "")
+	viper.SetDefault("SPONSORING_RECEIPTMINIMUM", 0)
+	viper.SetDefault("SPONSORING_DISCLAIMER", "Disclaimer")
+	viper.SetDefault("SPONSORING_BARCODEFORMAT", "code128")
+	viper.SetDefault("SPONSORING_BARCODEPREFIX", "")
+	viper.SetDefault("CERTIFICATE_FOOTER", "Footer")
+	viper.SetDefault("GOTENBERG_BASEURL", "")
+	viper.SetDefault("REDIS_ADDR", "")
+	viper.SetDefault("SEPA_BIC", "")
+	viper.SetDefault("SEPA_NAME", "")
+	viper.SetDefault("SEPA_IBAN", "")
+
+	// Load .env file
+	viper.SetConfigFile(".env")
+
+	// Load environment variables
+	viper.AutomaticEnv()
+	err := viper.ReadInConfig()
+	if err != nil {
+		logger.Warn("No .env file found")
+	}
+
+	// Unmarshal the config from file and env into the config struct
+	err = viper.Unmarshal(&config)
+	if err != nil {
+		return err
+	}
+
+	logger.Infow("Loaded config", "config", &config)
+
+	return nil
+}
+
+func initLogger() error {
+	logLevel := os.Getenv("LOGLEVEL")
+	if logLevel == "" {
+		logLevel = "INFO"
+	}
+
+	var zapLogLevel zapcore.Level
+	err := zapLogLevel.UnmarshalText([]byte(strings.ToLower(logLevel)))
+	if err != nil {
+		zapLogLevel = zapcore.InfoLevel
+	}
+
+	zapConfig := zap.NewProductionConfig()
+	zapConfig.Level = zap.NewAtomicLevelAt(zapLogLevel)
+	zapLogger, err := zapConfig.Build()
+	if err != nil {
+		return err
+	}
+
+	defer zapLogger.Sync()
+	logger = zapLogger.Sugar()
+
+	logger.Debug("Initialized logger")
+
+	return nil
+}
+
+// @title						LfK Document Server API
+// @description					This is the API documentation for the LfK Document Server - a tool for pdf generation.
+// @license.name				CC BY-NC-SA 4.0
+// @termsOfService				https://lauf-fuer-kaya.de/datenschutz
+// @contact.name				ODIT.Services UG (haftungsbeschränkt)
+// @contact.url					https://odit.services
+// @contact.email				info@odit.services
+// @securityDefinitions.apiKey	ApiKeyAuth
+// @in							query
+// @name						key
 func main() {
-	// Parse command-line flags
+
-	flag.Parse()
+	// Init the logger
+	err := initLogger()
+	if err != nil {
+		return
+	}
+
+	err = loadEnv()
+	if err != nil {
+		logger.Error(err)
+		return
+	}
+
+	var redisClient *redis.Client
+	if config.RedisAddr != "" {
+		logger.Infow("Using redis", "redisAddr", config.RedisAddr)
+		redisClient = redis.NewClient(&redis.Options{
+			Addr: config.RedisAddr,
+		})
+	}
+
+	barcodeGenerator := &services.DefaultBarcodeService{
+		RedisClient: redisClient,
+		Logger:      logger.Named("DefaultBarcodeService"),
+	}
+	staticService := &services.DefaultStaticService{
+		Cache:  make(map[string]string),
+		Logger: logger.Named("DefaultStaticService"),
+	}
+	handler := handlers.DefaultHandler{
+		Config:         config,
+		BarcodeService: barcodeGenerator,
+		StaticService:  staticService,
+		Templater: &services.DefaultTemplater{
+			BarcodeService: barcodeGenerator,
+			StaticService:  staticService,
+			Logger:         logger.Named("DefaultTemplater"),
+		},
+		Converter: &services.GotenbergConverter{
+			BaseUrl: config.GotenbergBaseUrl,
+			Logger:  logger.Named("GotenbergConverter"),
+		},
+		Logger: logger.Named("DefaultHandler"),
+	}
+	logger.Debug("Initialized services")
 
 	// Create a new Fiber instance
 	app := fiber.New(fiber.Config{
-		Prefork: *prod,
+		Prefork: config.Prod,
 	})
 
+	app.Use(cors.New())
+	app.Use(requestid.New())
+
 	// Swagger documentation route
 	app.Get("/swagger/*", swagger.HandlerDefault)
 
 	v1 := app.Group("/v1")
 
-	v1.Get("/", func(c *fiber.Ctx) error {
+	pdfv1 := v1.Group("/pdfs")
-		return c.SendString("Hello, World!")
+	pdfv1.Use(keyauth.New(keyauth.Config{
-	})
+		KeyLookup: "query:key",
-	v1.Post("/contracts", handlers.GenerateContract)
+		Validator: validateAPIKey,
-	v1.Post("/cards", handlers.GenerateCard)
+	}))
-	v1.Post("/certificates", handlers.GenerateCertificate)
 
-	app.Use(handlers.NotFoundHandler)
+	pdfv1.Post("/contracts", handler.GenerateContract)
+	pdfv1.Post("/cards", handler.GenerateCard)
+	pdfv1.Post("/certificates", handler.GenerateCertificate)
+
+	v1.Get("/barcodes/:type/:content", handler.GenerateBarcode)
+	logger.Debug("Initialized routes")
+
+	app.Use(handler.NotFoundHandler)
 	docs.SwaggerInfo.BasePath = "/"
 
-	log.Fatal(app.Listen(*port))
+	logger.Infow("Starting server", "port", config.Port)
+	logger.Error(app.Listen("0.0.0.0:" + config.Port))
 }

models/card.go

@@ -1,15 +1,15 @@
 package models
 
 type CardRequest struct {
-	Cards  []Card `json:"cards"`
+	Cards  []Card `json:"cards" validate:"required"`
-	Locale string `json:"locale" enums:"en,de"`
+	Locale string `json:"locale" enums:"en,de" validate:"required"`
 }
 
 type Card struct {
-	ID      int    `json:"id"`
+	ID      int    `json:"id" validate:"required"`
-	Enabled bool   `json:"enabled"`
+	Enabled bool   `json:"enabled" default:"true"`
-	Runner  Runner `json:"runner"`
+	Runner  Runner `json:"runner" validate:"required"`
-	Code    string `json:"code"`
+	Code    string `json:"code" validate:"required"`
 }
 
 type CardTemplateOptions struct {

models/certificate.go

@@ -1,35 +1,37 @@
 package models
 
 type CertificateRequest struct {
-	Runners []RunnerWithDonations `json:"runners"`
+	Runners []RunnerWithDonations `json:"runners" validate:"required"`
-	Locale  string                `json:"locale" enums:"en,de"`
+	Locale  string                `json:"locale" enums:"en,de" validate:"required"`
 }
 
 type RunnerWithDonations struct {
-	ID                int                `json:"id"`
+	ID                int                `json:"id" validate:"required"`
-	FirstName         string             `json:"first_name"`
+	FirstName         string             `json:"first_name" validate:"required"`
-	MiddleName        string             `json:"middle_name"`
+	MiddleName        string             `json:"middle_name" validate:"optional"`
-	LastName          string             `json:"last_name"`
+	LastName          string             `json:"last_name" validate:"required"`
-	Group             Group              `json:"group"`
+	Group             Group              `json:"group" validate:"required"`
-	Distance          int                `json:"distance"`
+	CombinedGroupName string             `json:"combined_group_name" validate:"optional"`
-	DistanceDonations []DistanceDonation `json:"distance_donations"`
+	Distance          int                `json:"distance" validate:"required"`
-	TotalPerDistance  int                `json:"total_per_distance"`
+	DistanceDonations []DistanceDonation `json:"distance_donations" validate:"optional"`
-	TotalDonations    int                `json:"total_donations"`
+	TotalPerDistance  int                `json:"total_per_distance" validate:"optional"`
+	TotalDonations    int                `json:"total_donations" validate:"optional"`
+	SelfServiceLink   string             `json:"self_service_link" validate:"required"`
 }
 
 type DistanceDonation struct {
-	ID                int   `json:"id"`
+	ID                int   `json:"id" validate:"required"`
 	Amount            int   `json:"amount"`
-	PaidAmount        int   `json:"paid_amount"`
+	PaidAmount        int   `json:"paid_amount" validate:"optional"`
-	AmountPerDistance int   `json:"amount_per_distance"`
+	AmountPerDistance int   `json:"amount_per_distance" validate:"required"`
-	Donor             Donor `json:"donor"`
+	Donor             Donor `json:"donor" validate:"required"`
 }
 
 type Donor struct {
-	ID         int    `json:"id"`
+	ID         int    `json:"id" validate:"required"`
-	FirstName  string `json:"first_name"`
+	FirstName  string `json:"first_name" validate:"required"`
-	MiddleName string `json:"middle_name"`
+	MiddleName string `json:"middle_name" validate:"optional"`
-	LastName   string `json:"last_name"`
+	LastName   string `json:"last_name" validate:"required"`
 }
 
 type CertificateTemplateOptions struct {
@@ -37,4 +39,13 @@ type CertificateTemplateOptions struct {
 	EventName      string                `json:"event_name"`
 	Footer         string                `json:"footer"`
 	CurrencySymbol string                `json:"currency_symbol"`
+	Locale         string                `json:"locale"`
+	SepaConfig     *SepaConfig           `json:"sepa_config"`
+}
+
+type SepaConfig struct {
+	IBAN               string `json:"iban" validate:"required"`
+	HolderName         string `json:"holder_name" validate:"required"`
+	BIC                string `json:"bic" validate:"required"`
+	CurrencyIdentifier string `json:"currency_identifier" validate:"required"`
 }

models/config.go

@@ -0,0 +1,24 @@
+package models
+
+type Config struct {
+	LogLevel                 string `mapstructure:"LOGLEVEL"`
+	Prod                     bool   `mapstructure:"PRODUCION"`
+	Port                     string `mapstructure:"PORT"`
+	APIKey                   string `mapstructure:"APIKEY"`
+	EventName                string `mapstructure:"EVENTNAME"`
+	CurrencySymbol           string `mapstructure:"CURRENCYSYMBOL"`
+	CurrencyIdentifier       string `mapstructure:"CURRENCYIDENTIFIER"`
+	CardSubtitle             string `mapstructure:"CARD_SUBTITLE"`
+	CardBarcodeFormat        string `mapstructure:"CARD_BARCODEFORMAT"`
+	CardBarcodePrefix        string `mapstructure:"CARD_BARCODEPREFIX"`
+	SponsoringReceiptMinimum string `mapstructure:"SPONSORING_RECEIPTMINIMUM"`
+	SponosringDisclaimer     string `mapstructure:"SPONSORING_DISCLAIMER"`
+	SponsoringBarcodeFormat  string `mapstructure:"SPONSORING_BARCODEFORMAT"`
+	SponsoringBarcodePrefix  string `mapstructure:"SPONSORING_BARCODEPREFIX"`
+	CertificateFooter        string `mapstructure:"CERTIFICATE_FOOTER"`
+	GotenbergBaseUrl         string `mapstructure:"GOTENBERG_BASEURL"`
+	RedisAddr                string `mapstructure:"REDIS_ADDR"`
+	SepaBic                  string `mapstructure:"SEPA_BIC"`
+	SepaName                 string `mapstructure:"SEPA_NAME"`
+	SepaIban                 string `mapstructure:"SEPA_IBAN"`
+}

models/contract.go

@@ -1,31 +1,31 @@
 package models
 
 type ContractRequest struct {
-	Runners []Runner `json:"runners"`
+	Runners []Runner `json:"runners" validate:"required"`
-	Locale  string   `json:"locale" enums:"en,de"`
+	Locale  string   `json:"locale" enums:"en,de" validate:"required"`
 }
 
 type Runner struct {
-	ID         int    `json:"id"`
+	ID         int    `json:"id" validate:"required"`
-	FirstName  string `json:"first_name"`
+	FirstName  string `json:"first_name" validate:"required"`
-	MiddleName string `json:"middle_name"`
+	MiddleName string `json:"middle_name" validate:"optional"`
-	LastName   string `json:"last_name"`
+	LastName   string `json:"last_name" validate:"required"`
-	Group      Group  `json:"group"`
+	Group      Group  `json:"group" validate:"required"`
 }
 
 type Group struct {
-	ID          int    `json:"id"`
+	Name        string `json:"name" validate:"required"`
-	Name        string `json:"name"`
+	ParentGroup struct {
-	ParentGroup *Group `json:"parent_group"`
+		Name string `json:"name" validate:"required"`
+	} `json:"parent_group" validate:"optional"`
 }
 
 type ContractTemplateOptions struct {
 	Runners              []Runner `json:"runners"`
 	CurrencySymbol       string   `json:"currency_symbol"`
 	Disclaimer           string   `json:"disclaimer"`
-	ReceiptMinimumAmount int      `json:"receipt_minimum_amount"`
+	ReceiptMinimumAmount string   `json:"receipt_minimum_amount"`
 	EventName            string   `json:"event_name"`
-	SponsoringHeader     string   `json:"base_url"`
 	BarcodeFormat        string   `json:"barcode_format"`
 	BarcodePrefix        string   `json:"barcode_prefix"`
 }

services/barcode.go

@@ -0,0 +1,129 @@
+package services
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"image"
+	"image/color"
+	"image/draw"
+	"image/png"
+	"slices"
+	"time"
+
+	"github.com/boombuler/barcode"
+	"github.com/boombuler/barcode/code128"
+	"github.com/boombuler/barcode/ean"
+	"github.com/boombuler/barcode/qr"
+	"github.com/redis/go-redis/v9"
+	"go.uber.org/zap"
+)
+
+type BarcodeService interface {
+	GenerateBarcode(format string, content string, width int, height int, padding int) (bytes.Buffer, error)
+	IsTypeSupported(format string) bool
+}
+
+type DefaultBarcodeService struct {
+	RedisClient *redis.Client
+	Logger      *zap.SugaredLogger
+}
+
+func (b *DefaultBarcodeService) GenerateBarcode(format string, content string, width int, height int, padding int) (bytes.Buffer, error) {
+	ctx := context.Background()
+	logger := b.Logger.Named("GenerateBarcode")
+
+	if !b.IsTypeSupported(format) {
+		logger.Errorw("Unsupported barcode type", "type", format)
+		return bytes.Buffer{}, fmt.Errorf("unsupported barcode type: %s", format)
+	}
+
+	logger = logger.With("type", format, "content", content, "width", width, "height", height, "padding", padding)
+	cacheKey := fmt.Sprintf("barcode:%s:%s:%d:%d:%d", format, content, width, height, padding)
+
+	if b.RedisClient != nil {
+		logger.Debugw("Checking cache for barcode", "key", cacheKey)
+		cachedBarcode, err := b.RedisClient.Get(ctx, cacheKey).Result()
+		if err == nil {
+			logger.Infow("Barcode found in cache", "key", cacheKey)
+			buf := bytes.Buffer{}
+			buf.Write([]byte(cachedBarcode))
+			return buf, nil
+		}
+	}
+
+	var generatedCode barcode.Barcode
+	var err error
+
+	switch format {
+	case "ean13":
+		generatedCode, err = ean.Encode(content)
+		if err != nil {
+			return bytes.Buffer{}, err
+		}
+		break
+	case "code128":
+		generatedCode, err = code128.Encode(content)
+		if err != nil {
+			return bytes.Buffer{}, err
+		}
+		break
+	case "qr":
+		// Always use qr.Auto encoding to support all characters in the content
+		encoding := qr.Auto
+
+		// QR code generation with error correction level M and auto encoding
+		generatedCode, err = qr.Encode(content, qr.M, encoding)
+		if err != nil {
+			return bytes.Buffer{}, err
+		}
+		break
+	}
+
+	// Create a white background image
+	bg := image.NewRGBA(image.Rect(0, 0, width, height))
+	white := color.RGBA{255, 255, 255, 255}
+	draw.Draw(bg, bg.Bounds(), &image.Uniform{white}, image.Point{}, draw.Src)
+	logger.Debug("Created white background")
+
+	// Calculate the new size for the barcode to fit within the padding
+	newWidth := width - 2*padding
+	newHeight := height - 2*padding
+
+	// Scale the barcode to the new size
+	scaledCode, err := barcode.Scale(generatedCode, newWidth, newHeight)
+	if err != nil {
+		logger.Errorw("Failed to scale barcode", "error", err)
+		return bytes.Buffer{}, err
+	}
+	logger.Debug("Scaled barcode")
+
+	// Draw the barcode on top of the white background with padding
+	draw.Draw(bg, scaledCode.Bounds().Add(image.Point{padding, padding}), scaledCode, image.Point{}, draw.Over)
+	logger.Debug("Drew barcode on background")
+
+	var buf bytes.Buffer
+	err = png.Encode(&buf, bg)
+	if err != nil {
+		logger.Errorw("Failed to encode barcode to PNG", "error", err)
+		return bytes.Buffer{}, err
+	}
+	logger.Debug("Encoded barcode to PNG")
+
+	if b.RedisClient != nil {
+		err = b.RedisClient.Set(ctx, cacheKey, buf.String(), 10*time.Minute).Err()
+		logger.Debugw("Cached barcode", "key", cacheKey)
+		if err != nil {
+			logger.Errorw("Failed to cache barcode", "error", err)
+			return bytes.Buffer{}, err
+		}
+	}
+	logger.Info("Generated barcode")
+
+	return buf, nil
+}
+
+func (b *DefaultBarcodeService) IsTypeSupported(format string) bool {
+	supportedTypes := []string{"ean13", "code128", "qr"}
+	return slices.Contains(supportedTypes, format)
+}

services/converter.go

@@ -8,6 +8,7 @@ import (
 	"strconv"
 
 	"github.com/oxplot/papersizes"
+	"go.uber.org/zap"
 )
 
 type Converter interface {
@@ -16,92 +17,115 @@ type Converter interface {
 
 type GotenbergConverter struct {
 	BaseUrl string
+	Logger  *zap.SugaredLogger
 }
 
 func (g *GotenbergConverter) ToPdf(html string, pageSize string, landscape bool) ([]byte, error) {
+	logger := g.Logger.Named("ToPdf").With("page_size", pageSize, "landscape", landscape, "base_url", g.BaseUrl)
+
 	client := &http.Client{}
 	defer client.CloseIdleConnections()
+	logger.Debug("Created HTTP client")
 
 	body := &bytes.Buffer{}
 	writer := multipart.NewWriter(body)
 
 	part, err := writer.CreateFormFile("files", "index.html")
 	if err != nil {
+		logger.Errorw("Failed to create form file", "error", err)
 		return nil, err
 	}
 
 	_, err = part.Write([]byte(html))
 	if err != nil {
+		logger.Errorw("Failed to write to form file", "error", err)
 		return nil, err
 	}
 
 	size := papersizes.FromName(pageSize)
 	if size == nil {
+		logger.Errorw("Invalid page size", "size", pageSize)
 		return nil, fmt.Errorf("invalid page size: %s", pageSize)
 	}
 
 	err = writer.WriteField("paperWidth", strconv.Itoa(size.Width)+"mm")
 	if err != nil {
+		logger.Errorw("Failed to write paper width", "error", err)
 		return nil, err
 	}
 
 	err = writer.WriteField("paperHeight", strconv.Itoa(size.Height)+"mm")
 	if err != nil {
+		logger.Errorw("Failed to write paper height", "error", err)
 		return nil, err
 	}
 
 	err = writer.WriteField("landscape", strconv.FormatBool(landscape))
 	if err != nil {
+		logger.Errorw("Failed to write landscape", "error", err)
 		return nil, err
 	}
 
 	err = writer.WriteField("marginTop", "0")
 	if err != nil {
+		logger.Errorw("Failed to write margin top", "error", err)
 		return nil, err
 	}
 
 	err = writer.WriteField("marginBottom", "0")
 	if err != nil {
+		logger.Errorw("Failed to write margin bottom", "error", err)
 		return nil, err
 	}
 
 	err = writer.WriteField("marginLeft", "0")
 	if err != nil {
+		logger.Errorw("Failed to write margin left", "error", err)
 		return nil, err
 	}
 
 	err = writer.WriteField("marginRight", "0")
 	if err != nil {
+		logger.Errorw("Failed to write margin right", "error", err)
 		return nil, err
 	}
 
 	err = writer.WriteField("preferCssPageSize", "true")
 	if err != nil {
+		logger.Errorw("Failed to write prefer css page size", "error", err)
 		return nil, err
 	}
 
 	err = writer.Close()
 	if err != nil {
+		logger.Errorw("Failed to close writer", "error", err)
 		return nil, err
 	}
+	logger.Debug("Created form data")
 
+	logger.Debug("Creating HTTP request")
 	req, err := http.NewRequest("POST", g.BaseUrl+"/forms/chromium/convert/html", body)
 	if err != nil {
 		return nil, err
 	}
 	req.Header.Set("Content-Type", writer.FormDataContentType())
 
+	logger.Debug("Sending HTTP request")
 	resp, err := client.Do(req)
 	if err != nil {
+		logger.Errorw("Failed to send request", "error", err)
 		return nil, err
 	}
+	logger.Debug("Received HTTP response")
 
 	defer resp.Body.Close()
 	data := new(bytes.Buffer)
 	_, err = data.ReadFrom(resp.Body)
 	if err != nil {
+		logger.Errorw("Failed to read response body", "error", err)
 		return nil, err
 	}
 
+	logger.Debug("Returning PDF data")
 	return data.Bytes(), nil
 }

services/templater.go

@@ -4,14 +4,11 @@ import (
 	"bytes"
 	"encoding/base64"
 	"errors"
+	"fmt"
 	"html/template"
-	"image/png"
+	"strings"
 
-	"git.odit.services/lfk/document-server/templates"
+	"go.uber.org/zap"
-	"github.com/boombuler/barcode"
-	"github.com/boombuler/barcode/code128"
-	"github.com/boombuler/barcode/ean"
-	"github.com/boombuler/barcode/qr"
 )
 
 type Templater interface {
@@ -20,6 +17,9 @@ type Templater interface {
 }
 
 type DefaultTemplater struct {
+	BarcodeService BarcodeService
+	StaticService  StaticService
+	Logger         *zap.SugaredLogger
 }
 
 func idToEan13(id string, prefix string) (string, error) {
@@ -35,64 +35,82 @@ func idToEan13(id string, prefix string) (string, error) {
 	return id, nil
 }
 
-func (t *DefaultTemplater) GenerateBarcode(code string, format string, prefix string) (string, error) {
+func (t *DefaultTemplater) GenerateEPC(iban string, bic string, name string, title string, amount int, currency string) (string, error) {
-	var generatedCode barcode.Barcode
 	var err error
 
-	switch format {
+	code := fmt.Sprintf(`BCD
-	case "ean13":
+002
-		encodedEan, err := idToEan13(code, prefix)
+1
+INST
+%s
+%s
+%s
+%s%.2f
+
+%s
+
+`, bic, name, iban, currency, float64(amount)/100, title,
+	)
+
+	buf, err := t.BarcodeService.GenerateBarcode("qr", code, 500, 500, 0)
+
+	return base64.StdEncoding.EncodeToString(buf.Bytes()), err
+}
+
+func (t *DefaultTemplater) GenerateBarcode(code string, format string, prefix string) (string, error) {
+	var err error
+
+	if format == "ean13" {
+		code, err = idToEan13(code, prefix)
 		if err != nil {
 			return "", err
 		}
-		generatedCode, err = ean.Encode(encodedEan)
-		if err != nil {
-			return "", err
-		}
-		break
-	case "code128":
-		generatedCode, err = code128.Encode(prefix + code)
-		if err != nil {
-			return "", err
-		}
-		break
-	case "qr":
-		generatedCode, err = qr.Encode(prefix+code, qr.M, qr.AlphaNumeric)
-		if err != nil {
-			return "", err
-		}
-		break
-	default:
-		return "", errors.New("unknown barcode format")
 	}
 
-	scaledCode, err := barcode.Scale(generatedCode, 1000, 500)
+	buf, err := t.BarcodeService.GenerateBarcode(format, code, 1000, 500, 0)
-	if err != nil {
-		return "", err
-	}
 
-	var buf bytes.Buffer
+	return base64.StdEncoding.EncodeToString(buf.Bytes()), err
-	err = png.Encode(&buf, scaledCode)
-	if err != nil {
-		return "", err
-	}
-
-	return base64.StdEncoding.EncodeToString(buf.Bytes()), nil
 }
 
 func (t *DefaultTemplater) SelectSponsorImage(id int) (string, error) {
-	sponsors := []string{
+	logger := t.Logger.Named("SelectSponsorImage")
-		"vrbank",
+	sponsors, err := t.StaticService.ListFilesInStaticSubFolder("images/sponsors")
-		"odit",
+	if err != nil {
-		"sparkasse",
+		logger.Errorw("Failed to list sponsors", "error", err)
+		return "", err
 	}
-	return templates.GetImage(sponsors[id%len(sponsors)]), nil
+	logger.Debugw("Selected sponsor", "sponsors", sponsors, "id", id, "selected", sponsors[id%len(sponsors)])
+	return t.StaticService.GetImage("sponsors/" + strings.TrimSuffix(sponsors[id%len(sponsors)], ".base64")), nil
+}
+
+func (t *DefaultTemplater) LoadImage(name string) (string, error) {
+	return t.StaticService.GetImage(name), nil
+}
+
+func (t *DefaultTemplater) FormatUnit(unit string, locale string, amount int) (string, error) {
+	var formatted string
+	switch unit {
+	case "kilometer":
+		formatted = fmt.Sprintf("%.3f", float64(amount)/1000)
+	case "euro":
+		formatted = fmt.Sprintf("%.2f", float64(amount)/100)
+	default:
+		return "", errors.New("unknown unit")
+	}
+
+	if locale == "de" {
+		return strings.Replace(formatted, ".", ",", -1), nil
+	}
+	return formatted, nil
 }
 
 func (t *DefaultTemplater) StringToTemplate(templateString string) (*template.Template, error) {
 	return template.New("template").Funcs(template.FuncMap{
 		"barcode":     t.GenerateBarcode,
 		"sponsorLogo": t.SelectSponsorImage,
+		"formatUnit":  t.FormatUnit,
+		"loadImage":   t.LoadImage,
+		"epcCode":     t.GenerateEPC,
 	}).Parse(templateString)
 }
 

services/templates.go

@@ -0,0 +1,72 @@
+package services
+
+import (
+	_ "embed"
+	"fmt"
+	"os"
+
+	"go.uber.org/zap"
+)
+
+type StaticService interface {
+	GetTemplate(locale, templateName string) (string, error)
+	ListFilesInStaticSubFolder(folderName string) ([]string, error)
+	GetImage(imageName string) string
+}
+
+type DefaultStaticService struct {
+	Cache  map[string]string
+	Logger *zap.SugaredLogger
+}
+
+func (s *DefaultStaticService) GetTemplate(locale, templateName string) (string, error) {
+	logger := s.Logger.Named("GetTemplate").With("locale", locale, "template_name", templateName)
+
+	if s.Cache[locale+templateName] != "" {
+		logger.Debugw("Template found in cache", "key", locale+templateName)
+		return s.Cache[locale+templateName], nil
+	}
+
+	content, err := os.ReadFile(fmt.Sprintf("static/templates/%s/%s.html", templateName, locale))
+	if content == nil || err != nil {
+		logger.Errorw("Failed to read template", "error", err)
+		return "", err
+	}
+
+	s.Cache[locale+templateName] = string(content)
+	logger.Debugw("Saved template to cache", "key", locale+templateName)
+
+	return string(content), nil
+}
+
+func (s *DefaultStaticService) ListFilesInStaticSubFolder(folderName string) ([]string, error) {
+	logger := s.Logger.Named("ListFilesInStaticSubFolder").With("folder_name", folderName)
+
+	files, err := os.ReadDir(fmt.Sprintf("static/%s", folderName))
+	if err != nil {
+		logger.Errorw("Failed to list files", "error", err)
+		return nil, err
+	}
+	var images []string
+	for _, file := range files {
+		if file.IsDir() {
+			logger.Debugw("Skipping directory", "file", file.Name())
+		}
+		images = append(images, file.Name())
+	}
+	logger.Debugw("Listed files", "files", images)
+	return images, nil
+}
+
+func (s *DefaultStaticService) GetImage(imageName string) string {
+	logger := s.Logger.Named("GetImage").With("image_name", imageName)
+
+	content, err := os.ReadFile("static/images/" + imageName + ".base64")
+	if content == nil || err != nil {
+		logger.Errorw("Failed to read image", "error", err)
+		return ImageErrorBase64
+	}
+	return string(content)
+}
+
+const ImageErrorBase64 string = "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 truncated

static/images/certificate_background.base64

@@ -0,0 +1 @@
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static/images/sponsors/atlantis.base64

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truncated

static/images/sponsors/herzogspark.base64

@@ -0,0 +1 @@
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Line truncated

static/templates/card/de.html

@@ -2,7 +2,7 @@
 
 <head>
   <meta charset="utf8">
-  <title>Sponsoring contract</title>
+  <title>Läuferkarten</title>
   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css">
   <style>
     .sheet {
@@ -50,8 +50,12 @@
             <p style="font-size: 0.6rem; text-align: center; margin: 0; padding: 0;">{{ .Code }}</p>
           </div>
         </div>
+        {{ if ne .Runner.FirstName "" }}
         <p>{{ .Runner.LastName }}, {{ .Runner.FirstName }} {{ .Runner.MiddleName }}</p>
-        <p>{{ .Runner.Group.Name }}</p>
+        <p>{{ if ne .Runner.Group.ParentGroup.Name "" -}}{{ .Runner.Group.ParentGroup.Name }}/{{end -}}{{ .Runner.Group.Name }}</p>
+        {{ else }}
+        <p>Kein Läufer zugewiesen</p>
+        {{ end}}
         {{ end}}
       </div>
       {{ end }}

static/templates/card/en.html

@@ -2,7 +2,7 @@
 
 <head>
   <meta charset="utf8">
-  <title>Sponsoring contract</title>
+  <title>Runner cards</title>
   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css">
   <style>
     .sheet {
@@ -49,8 +49,12 @@
             <p style="font-size: 0.6rem; text-align: center; margin: 0; padding: 0;">{{ .Code }}</p>
           </div>
         </div>
+        {{ if ne .Runner.FirstName ""}}
         <p>{{ .Runner.LastName }}, {{ .Runner.FirstName }} {{ .Runner.MiddleName }}</p>
-        <p>{{ .Runner.Group.Name }}</p>
+        <p>{{ if ne .Runner.Group.ParentGroup.Name "" -}}{{ .Runner.Group.ParentGroup.Name }}/{{end -}}{{ .Runner.Group.Name }}</p>
+        {{ else }}
+        <p>Blank card</p>
+        {{ end}}
       </div>
       {{ end }}
     </div>

static/templates/certificate/de.html

@@ -0,0 +1,119 @@
+<html>
+
+<head>
+  <meta charset="utf8">
+  <title>Läuferurkunde</title>
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css">
+  <style>
+    .sheet {
+      margin: 0;
+      overflow: hidden;
+      position: relative;
+      box-sizing: border-box;
+      page-break-after: always;
+      padding: 1.2cm 2cm 1.2cm 2cm;
+      background-image: url("data:image/png;base64,{{ loadImage "certificate_background" }}");
+      background-repeat: no-repeat;
+      background-size: 11cm;
+      background-position: 5cm 5cm;
+      color: #000;
+      /* border-style: solid; */
+    }
+
+    h1,
+    h2,
+    h3,
+    p {
+      color: black;
+    }
+
+    body.A4 .sheet {
+      width: 210mm;
+      height: 296mm
+    }
+
+    .certificate-footer {
+      position: absolute;
+      bottom: 0cm;
+    }
+
+    td {
+      border: 1px solid black;
+      font-size: large;
+      font-weight: 600;
+    }
+  </style>
+</head>
+
+<body class="A4 landscape">
+  {{ range .Runners }}
+  <article class="sheet">
+    <header class="content has-text-centered">
+      <p style="font-size: 3cm; font-weight: bold;">Urkunde</p>
+    </header>
+    <main class="content has-text-centered" style="padding-top: 3cm;">
+      <p style="width: 50%; font-size: 4vw; font-weight: bold; margin-bottom: 0; display: inline;">{{ .FirstName }}
+        {{ .MiddleName }} {{ .LastName }}
+      </p>
+      <p style="font-size: 1cm; margin-bottom: 0;">hat beim {{ $.EventName }}</p>
+      <p style="font-size: 2cm; font-weight: bold; margin-bottom: 0;">{{formatUnit "kilometer" $.Locale .Distance}}km</p>
+      <p style="font-size: 1cm;">für den guten Zweck zurückgelegt</p>
+    </main>
+    <footer class="certificate-footer">
+      <img src="data:image/png;base64,{{ loadImage "certificate_footer" }}">
+    </footer>
+  </article>
+  <article class="sheet">
+    <header class="content has-text-centered">
+      <p style="font-size: 2.5cm; font-weight: bold;">Sponsorings</p>
+    </header>
+    <main>
+      <table style="border: solid; width: 17cm;">
+        <thead>
+          <td class=".td-head">Sponsor:in</td>
+          <td>Betrag/km</td>
+          <td>Gesamtbetrag</td>
+        </thead>
+        <tbody>
+          {{ range .DistanceDonations}}
+          <tr>
+            <td>{{ .Donor.FirstName }} {{ .Donor.MiddleName }} {{ .Donor.LastName }}</td>
+            <td>{{ formatUnit "euro" $.Locale .AmountPerDistance }} {{ $.CurrencySymbol }}</td>
+            <td>{{ formatUnit "euro" $.Locale .Amount }} {{ $.CurrencySymbol }}</td>
+          </tr>
+          {{ end }}
+        </tbody>
+        <tfoot>
+          <td>Gesamt</td>
+          <td>{{ formatUnit "euro" $.Locale .TotalPerDistance }} {{ $.CurrencySymbol }}</td>
+          <td>{{ formatUnit "euro" $.Locale .TotalDonations }} {{ $.CurrencySymbol }}</td>
+        </table>
+        </main>
+        <footer class="certificate-footer">
+            <table style="border-collapse: collapse; border: none; width: 17cm;">
+            <thead>
+              <tr>
+              <th style="border: none; width: 50%; text-align: center;">Link zu deinen Rundenzeiten</th>
+              <th style="border: none; width: 50%; text-align: center;">Spende überweisen</th>
+              </tr>
+            </thead>
+            <tbody>
+              <tr>
+              <td style="border: none; text-align: center;">
+                <img src="data:image/png;base64,{{ barcode .SelfServiceLink "qr" "" }}" style="height: 2.5cm; padding: 0.2cm">
+              </td>
+              <td style="border: none; text-align: center;">
+                <img src="data:image/png;base64,{{ epcCode $.SepaConfig.IBAN $.SepaConfig.BIC $.SepaConfig.HolderName (print "Spende LfK " .ID ", "  .FirstName " " .LastName ", " .CombinedGroupName) .TotalDonations $.SepaConfig.CurrencyIdentifier}}" style="height: 2.5cm; padding: 0.2cm">
+              </td>
+              </tr>
+            </tbody>
+            </table>
+            <p style="width: 17cm; text-align: center;">
+              Sponsoren überweisen ihre Beträge bitte auf unser Konto: {{ $.SepaConfig.HolderName }} | IBAN: {{ $.SepaConfig.IBAN }} | BIC: {{ $.SepaConfig.BIC }} | Vz: "Spende LfK {{.ID}}, {{ .FirstName }} {{ .LastName }}, {{.CombinedGroupName}}"
+            </p>
+    </footer>
+  </article>
+  {{ end }}
+</body>
+
+</html>

static/templates/certificate/en.html

@@ -0,0 +1,120 @@
+<html>
+
+<head>
+  <meta charset="utf8">
+  <title>Runner certificate</title>
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css">
+  <style>
+    .sheet {
+      margin: 0;
+      overflow: hidden;
+      position: relative;
+      box-sizing: border-box;
+      page-break-after: always;
+      padding: 1.2cm 2cm 1.2cm 2cm;
+      background-image: url("data:image/png;base64,{{ loadImage "certificate_background" }}");
+      background-repeat: no-repeat;
+      background-size: 11cm;
+      background-position: 5cm 5cm;
+      color: #000;
+      /* border-style: solid; */
+    }
+
+    h1,
+    h2,
+    h3,
+    p {
+      color: black;
+    }
+
+    body.A4 .sheet {
+      width: 210mm;
+      height: 296mm
+    }
+
+    .certificate-footer {
+      position: absolute;
+      bottom: 0cm;
+    }
+
+    td {
+      border: 1px solid black;
+      font-size: large;
+      font-weight: 600;
+    }
+  </style>
+</head>
+
+<body class="A4 landscape">
+  {{ range .Runners }}
+  <article class="sheet">
+    <header class="content has-text-centered">
+      <p style="font-size: 3cm; font-weight: bold;">Certificate</p>
+    </header>
+    <main class="content has-text-centered" style="padding-top: 3cm;">
+      <p style="width: 50%; font-size: 4vw; font-weight: bold; margin-bottom: 0; display: inline;">{{ .FirstName }}
+        {{ .MiddleName }} {{ .LastName }}
+      </p>
+      <p style="font-size: 1cm; margin-bottom: 0;">Ran</p>
+      <p style="font-size: 2cm; font-weight: bold; margin-bottom: 0;">{{formatUnit "kilometer" $.Locale .Distance}}km</p>
+      <p style="font-size: 1cm;">for our good cause at the {{ $.EventName }}</p>
+    </main>
+    <footer class="certificate-footer">
+      <img src="data:image/png;base64,{{ loadImage "certificate_footer" }}">
+    </footer>
+  </article>
+  <article class="sheet">
+    <header class="content has-text-centered">
+      <p style="font-size: 2.5cm; font-weight: bold;">Donations</p>
+    </header>
+    <main>
+      <table style="border: solid; width: 17cm;">
+        <thead>
+          <td class=".td-head">Donor</td>
+          <td>Amount / km</td>
+          <td>Total</td>
+        </thead>
+        <tbody>
+          {{ range .DistanceDonations}}
+          <tr>
+            <td>{{ .Donor.FirstName }} {{ .Donor.MiddleName }} {{ .Donor.LastName }}</td>
+            <td>{{ formatUnit "euro" $.Locale .AmountPerDistance }} {{ $.CurrencySymbol }}</td>
+            <td>{{ formatUnit "euro" $.Locale .Amount }} {{ $.CurrencySymbol }}</td>
+          </tr>
+          {{ end }}
+        </tbody>
+        <tfoot>
+          <td>Combined</td>
+          <td>{{ formatUnit "euro" $.Locale .TotalPerDistance }} {{ $.CurrencySymbol }}</td>
+          <td>{{ formatUnit "euro" $.Locale .TotalDonations }} {{ $.CurrencySymbol }}</td>
+        </tfoot>
+      </table>
+    </main>
+    <footer class="certificate-footer">
+      <table style="border-collapse: collapse; border: none; width: 17cm;">
+        <thead>
+          <tr>
+            <th style="border: none; width: 50%; text-align: center;">Link to your lap times</th>
+            <th style="border: none; width: 50%; text-align: center;">Transfer donation via SEPA</th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr>
+          <td style="border: none; text-align: center;">
+            <img src="data:image/png;base64,{{ barcode .SelfServiceLink "qr" "" }}" style="height: 2.5cm; padding: 0.2cm">
+          </td>
+          <td style="border: none; text-align: center;">
+            <img src="data:image/png;base64,{{ epcCode $.SepaConfig.IBAN $.SepaConfig.BIC $.SepaConfig.HolderName (print "Spende LfK " .ID ", "  .FirstName " " .LastName ", " .CombinedGroupName) .TotalDonations $.SepaConfig.CurrencyIdentifier}}" style="height: 2.5cm; padding: 0.2cm">
+          </td>
+          </tr>
+        </tbody>
+        </table>
+      <p style="width: 17cm; text-align: center;">
+        Donors, please transfer your donation to our account: {{ $.SepaConfig.HolderName }} | IBAN: {{ $.SepaConfig.IBAN }} | BIC: {{ $.SepaConfig.BIC }} | Ref: "Spende LfK {{.ID}}, {{ .FirstName }} {{ .LastName }}, {{.CombinedGroupName}}"
+      </p>
+    </footer>
+  </article>
+  {{ end }}
+</body>
+
+</html>

static/templates/contract/de.html

@@ -27,7 +27,7 @@
 <body class="A5 landscape">
   {{ range .Runners }}
   <div class="sheet">
-    <img id="header_img" width="100%" src="data:image/png;base64,{{ $.SponsoringHeader}}" />
+    <img id="header_img" width="100%" src="data:image/png;base64,{{ loadImage "sponsoringheader" }}" />
     <div style=" padding: 0 1rem 0 1rem;">
       <div class="columns">
         <div class="column is-10">
@@ -65,8 +65,8 @@
           <p style="font-size: x-small; display: block;">Nachname</p>
         </div>
         <div class="column is-6">
-          <span style="border-bottom: 1px solid; width: 100%; display: block;">{{ .Group.Name }}</span>
+          <span style="border-bottom: 1px solid; width: 100%; display: block;"><p>{{ if ne .Group.ParentGroup.Name "" -}}{{ .Group.ParentGroup.Name }}/ {{end -}}{{ .Group.Name }}</p></span>
-          <p style="font-size: x-small; display: block;">Team/ Klasse</p>
+          <p style="font-size: x-small; display: block;">Team/Klasse</p>
         </div>
       </div>
       <p style="margin-top: -0.5rem">mit einem Betrag von _____ {{ $.CurrencySymbol }} pro gelaufenem Kilometer zu

static/templates/contract/en.html

@@ -27,7 +27,7 @@
 <body class="A5 landscape">
   {{ range .Runners }}
   <div class="sheet">
-    <img id="header_img" width="100%" src="data:image/png;base64,{{ $.SponsoringHeader}}" />
+    <img id="header_img" width="100%" src="data:image/png;base64,{{ loadImage "sponsoringheader" }}" />
     <div style=" padding: 0 1rem 0 1rem;">
       <div class="columns">
         <div class="column is-10">
@@ -64,7 +64,7 @@
           <p style="font-size: x-small; display: block;">Last Name</p>
         </div>
         <div class="column is-6">
-          <span style="border-bottom: 1px solid; width: 100%; display: block;">{{ .Group.Name}}</span>
+          <span style="border-bottom: 1px solid; width: 100%; display: block;"><p>{{ if ne .Group.ParentGroup.Name "" -}}{{ .Group.ParentGroup.Name }}/ {{end -}}{{ .Group.Name }}</p></span>
           <p style="font-size: x-small; display: block;">Team/class</p>
         </div>
       </div>

templates/certificate/de.html

@@ -1,102 +0,0 @@
-<html>
-
-<head>
-  <meta charset="utf8">
-  <title>Sponsoring contract</title>
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css">
-  <style>
-    .sheet {
-      margin: 0;
-      overflow: hidden;
-      position: relative;
-      box-sizing: border-box;
-      page-break-after: always;
-      padding: 1.2cm 2cm 1.2cm 2cm;
-      background-image: url("data:image/png;base64,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 truncated
-      background-repeat: no-repeat;
-      background-size: 11cm;
-      background-position: 5cm 5cm;
-      color: #000;
-      /* border-style: solid; */
-    }
-
-    h1,
-    h2,
-    h3,
-    p {
-      color: black;
-    }
-
-    body.A4 .sheet {
-      width: 210mm;
-      height: 296mm
-    }
-
-    .certificate-footer {
-      position: absolute;
-      bottom: 0cm;
-    }
-
-    td {
-      border: 1px solid black;
-      font-size: large;
-      font-weight: 600;
-    }
-  </style>
-</head>
-
-<body class="A4 landscape">
-  {{ range .Runners }}
-  <article class="sheet">
-    <header class="content has-text-centered">
-      <p style="font-size: 3cm; font-weight: bold;">Urkunde</p>
-    </header>
-    <main class="content has-text-centered" style="padding-top: 3cm;">
-      <p style="width: 50%; font-size: 4vw; font-weight: bold; margin-bottom: 0; display: inline;">{{ .FirstName }}
-        {{ .MiddleName }} {{ .LastName }}
-      </p>
-      <p style="font-size: 1cm; margin-bottom: 0;">hat beim {{ $.EventName }}</p>
-      <p style="font-size: 2cm; font-weight: bold; margin-bottom: 0;">{{unitFormat "kilometer" .Distance}}km</p>
-      <p style="font-size: 1cm;">für den guten Zweck zurückgelegt</p>
-    </main>
-    <footer class="certificate-footer">
-      <img src="./certificate_footer.png">
-    </footer>
-  </article>
-  <article class="sheet">
-    <header class="content has-text-centered">
-      <p style="font-size: 2.5cm; font-weight: bold;">Sponsorings</p>
-    </header>
-    <main>
-      <table style="border: solid; width: 17cm;">
-        <thead>
-          <td class=".td-head">Sponsor:in</td>
-          <td>Betrag/km</td>
-          <td>Gesamtbetrag</td>
-        </thead>
-        <tbody>
-          {{ range .DistanceDonations}}
-          <tr>
-            <td>{{ .Donor.FirstName }} {{ .Donor.MiddleName }} {{ .Donor.LastName }}</td>
-            <td>{{ unitFormat "euro" .AmountPerDistance }} {{ $.CurrencySymbol }}</td>
-            <td>{{ unitFormat "euro" .Amount }} {{ $.CurrencySymbol }}</td>
-          </tr>
-          {{ end }}
-        </tbody>
-        <tfoot>
-          <td>Gesamt</td>
-          <td>{{ unitFormat .TotalPerDistance }} {{ $.CurrencySymbol }}</td>
-          <td>{{ unitFormat .TotalDonations }} {{ $.CurrencySymbol }}</td>
-        </tfoot>
-      </table>
-    </main>
-    <footer class="certificate-footer">
-      <p>
-        {{ $.Footer }}
-      </p>
-    </footer>
-  </article>
-  {{ end }}
-</body>
-
-</html>

templates/templates.go

@@ -1,65 +0,0 @@
-package templates
-
-import (
-	_ "embed"
-	"fmt"
-	"log"
-	"os"
-)
-
-//go:embed card/en.html
-var CardTemplateEn string
-
-//go:embed card/de.html
-var CardTemplateDe string
-
-//go:embed contract/en.html
-var ContractTemplateEn string
-
-//go:embed contract/de.html
-var ContractTemplateDe string
-
-//go:embed certificate/de.html
-var CertificateTemplateDe string
-
-//go:embed images/sponsoringheader.base64
-var ImageSponsoringHeaderBase64 string
-
-//go:embed images/error.base64
-var ImageErrorBase64 string
-
-func GetTemplate(locale, templateName string) (string, error) {
-	switch templateName {
-	case "card":
-		switch locale {
-		case "en":
-			return CardTemplateEn, nil
-		case "de":
-			return CardTemplateDe, nil
-		}
-	case "contract":
-		switch locale {
-		case "en":
-			return ContractTemplateEn, nil
-		case "de":
-			return ContractTemplateDe, nil
-		}
-	case "certificate":
-		switch locale {
-		case "en":
-			return ContractTemplateEn, nil
-		case "de":
-			return CertificateTemplateDe, nil
-		}
-	}
-	return "", fmt.Errorf("template not found with name %s and locale %s", templateName, locale)
-}
-
-func GetImage(imageName string) string {
-	content, err := os.ReadFile("static/images/" + imageName + ".base64")
-	if content == nil || err != nil {
-		log.Printf("error reading image %s: %v", imageName, err)
-		return ImageErrorBase64
-	}
-	return string(content)
-}