fix(templates/certificates): Add point at end of sentence

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

@@ -1,17 +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=
 
-SPONSOING_RECEIPTMINIMUM=10
+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!
+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

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

@@ -8,4 +8,8 @@ services:
   gotenberg:
     image: gotenberg/gotenberg:8
     ports:
-      - "3001:3000"
+      - "3001:3000"
+  redis:
+    image: docker.dragonflydb.io/dragonflydb/dragonfly
+    ports:
+      - "6379:6379"

docker.env

@@ -4,6 +4,7 @@ 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

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 +116,13 @@ const docTemplate = `{
                 "responses": {}
             }
         },
-        "/certificates": {
+        "/v1/pdfs/certificates": {
             "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
                 "description": "Generate certificates based on the provided data",
                 "consumes": [
                     "application/json"
@@ -52,7 +131,7 @@ const docTemplate = `{
                     "application/pdf"
                 ],
                 "tags": [
-                    "certificates"
+                    "pdfs"
                 ],
                 "summary": "Generate runner certificates",
                 "parameters": [
@@ -69,8 +148,13 @@ const docTemplate = `{
                 "responses": {}
             }
         },
-        "/contracts": {
+        "/v1/pdfs/contracts": {
             "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
                 "description": "Generate a contract based on the provided data",
                 "consumes": [
                     "application/json"
@@ -79,7 +163,7 @@ const docTemplate = `{
                     "application/pdf"
                 ],
                 "tags": [
-                    "contracts"
+                    "pdfs"
                 ],
                 "summary": "Generate a contract",
                 "parameters": [
@@ -237,18 +321,22 @@ const docTemplate = `{
         "models.Group": {
             "type": "object",
             "required": [
-                "id",
                 "name"
             ],
             "properties": {
-                "id": {
-                    "type": "integer"
-                },
                 "name": {
                     "type": "string"
                 },
                 "parent_group": {
-                    "$ref": "#/definitions/models.Group"
+                    "type": "object",
+                    "required": [
+                        "name"
+                    ],
+                    "properties": {
+                        "name": {
+                            "type": "string"
+                        }
+                    }
                 }
             }
         },
@@ -320,6 +408,13 @@ const docTemplate = `{
                 }
             }
         }
+    },
+    "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 +107,13 @@
                 "responses": {}
             }
         },
-        "/certificates": {
+        "/v1/pdfs/certificates": {
             "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
                 "description": "Generate certificates based on the provided data",
                 "consumes": [
                     "application/json"
@@ -43,7 +122,7 @@
                     "application/pdf"
                 ],
                 "tags": [
-                    "certificates"
+                    "pdfs"
                 ],
                 "summary": "Generate runner certificates",
                 "parameters": [
@@ -60,8 +139,13 @@
                 "responses": {}
             }
         },
-        "/contracts": {
+        "/v1/pdfs/contracts": {
             "post": {
+                "security": [
+                    {
+                        "ApiKeyAuth": []
+                    }
+                ],
                 "description": "Generate a contract based on the provided data",
                 "consumes": [
                     "application/json"
@@ -70,7 +154,7 @@
                     "application/pdf"
                 ],
                 "tags": [
-                    "contracts"
+                    "pdfs"
                 ],
                 "summary": "Generate a contract",
                 "parameters": [
@@ -228,18 +312,22 @@
         "models.Group": {
             "type": "object",
             "required": [
-                "id",
                 "name"
             ],
             "properties": {
-                "id": {
-                    "type": "integer"
-                },
                 "name": {
                     "type": "string"
                 },
                 "parent_group": {
-                    "$ref": "#/definitions/models.Group"
+                    "type": "object",
+                    "required": [
+                        "name"
+                    ],
+                    "properties": {
+                        "name": {
+                            "type": "string"
+                        }
+                    }
                 }
             }
         },
@@ -311,5 +399,12 @@
                 }
             }
         }
+    },
+    "securityDefinitions": {
+        "ApiKeyAuth": {
+            "type": "apiKey",
+            "name": "key",
+            "in": "query"
+        }
     }
 }

docs/swagger.yaml

@@ -94,14 +94,16 @@ definitions:
     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:
-    - id
     - name
     type: object
   models.Runner:
@@ -152,12 +154,63 @@ definitions:
     - 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
@@ -172,10 +225,12 @@ paths:
       produces:
       - application/pdf
       responses: {}
+      security:
+      - ApiKeyAuth: []
       summary: Generate runner cards
       tags:
-      - cards
-  /certificates:
+      - pdfs
+  /v1/pdfs/certificates:
     post:
       consumes:
       - application/json
@@ -190,10 +245,12 @@ paths:
       produces:
       - application/pdf
       responses: {}
+      security:
+      - ApiKeyAuth: []
       summary: Generate runner certificates
       tags:
-      - certificates
-  /contracts:
+      - pdfs
+  /v1/pdfs/contracts:
     post:
       consumes:
       - application/json
@@ -208,7 +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

@@ -14,6 +14,8 @@ 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
@@ -32,6 +34,7 @@ require (
 	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
@@ -46,7 +49,8 @@ require (
 	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 v1.9.0 // 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

go.sum

@@ -4,9 +4,13 @@ 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=
@@ -54,6 +58,8 @@ github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6
 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=
@@ -101,6 +107,10 @@ 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=

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

@@ -1,45 +1,52 @@
 package handlers
 
 import (
-	"log"
 	"slices"
 
 	"git.odit.services/lfk/document-server/models"
-	"git.odit.services/lfk/document-server/services"
 	"github.com/gofiber/fiber/v2"
 )
 
 // GenerateCard godoc
-// @Summary Generate runner cards
-// @Description Generate cards based on the provided data
-// @Tags cards
-// @Accept json
-// @Param data body models.CardRequest true "Card data"
-// @Produce application/pdf
-// @Router /cards [post]
+//
+//	@Summary		Generate runner cards
+//	@Description	Generate cards based on the provided data
+//	@Tags			pdfs
+//	@Accept			json
+//	@Param			data	body	models.CardRequest	true	"Card data"
+//	@Produce		application/pdf
+//	@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{}
-	templateString, err := services.GetTemplate(cardRequest.Locale, "card")
+	logger = logger.With("locale", cardRequest.Locale)
+
+	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(),
 		})
@@ -53,22 +60,29 @@ func (h *DefaultHandler) GenerateCard(c *fiber.Ctx) error {
 		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: h.Config.GotenbergBaseUrl}
-	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

@@ -1,45 +1,52 @@
 package handlers
 
 import (
-	"log"
 	"slices"
 
 	"git.odit.services/lfk/document-server/models"
-	"git.odit.services/lfk/document-server/services"
 	"github.com/gofiber/fiber/v2"
 )
 
 // GenerateCertificate godoc
-// @Summary Generate runner certificates
-// @Description Generate certificates based on the provided data
-// @Tags certificates
-// @Accept json
-// @Param data body models.CertificateRequest true "Certificate data"
-// @Produce application/pdf
-// @Router /certificates [post]
+//
+//	@Summary		Generate runner certificates
+//	@Description	Generate certificates based on the provided data
+//	@Tags			pdfs
+//	@Accept			json
+//	@Param			data	body	models.CertificateRequest	true	"Certificate data"
+//	@Produce		application/pdf
+//	@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{}
-	templateString, err := services.GetTemplate(certificateRequest.Locale, "certificate")
+	logger = logger.With("locale", certificateRequest.Locale)
+
+	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(),
 		})
@@ -51,24 +58,35 @@ func (h *DefaultHandler) GenerateCertificate(c *fiber.Ctx) error {
 		Footer:         h.Config.CertificateFooter,
 		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: h.Config.GotenbergBaseUrl}
-	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)
 }
 
@@ -78,6 +96,13 @@ func addUpRunnerDonations(runners []models.RunnerWithDonations) []models.RunnerW
 			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

@@ -1,54 +1,59 @@
 package handlers
 
 import (
-	"log"
 	"slices"
 
 	"git.odit.services/lfk/document-server/models"
-	"git.odit.services/lfk/document-server/services"
 	"github.com/gofiber/fiber/v2"
 )
 
 // GenerateContract godoc
-// @Summary Generate a contract
-// @Description Generate a contract based on the provided data
-// @Tags contracts
-// @Accept json
-// @Param data body models.ContractRequest true "Contract data"
-// @Produce application/pdf
-// @Router /contracts [post]
+//
+//	@Summary		Generate a contract
+//	@Description	Generate a contract based on the provided data
+//	@Tags			pdfs
+//	@Accept			json
+//	@Param			data	body	models.ContractRequest	true	"Contract data"
+//	@Produce		application/pdf
+//	@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 := services.GetTemplate(contract.Locale, "contract")
+	templateString, err := h.StaticService.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:       h.Config.CurrencySymbol,
 		Disclaimer:           h.Config.SponosringDisclaimer,
 		ReceiptMinimumAmount: h.Config.SponsoringReceiptMinimum,
@@ -57,22 +62,26 @@ func (h *DefaultHandler) GenerateContract(c *fiber.Ctx) error {
 		BarcodePrefix:        h.Config.SponsoringBarcodePrefix,
 	}
 
-	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: h.Config.GotenbergBaseUrl}
-	pdf, err := converter.ToPdf(result, "a5", true)
+	logger.Info("Converting html to pdf")
+	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

@@ -2,15 +2,23 @@ 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
+	Config         *models.Config
+	BarcodeService services.BarcodeService
+	Templater      services.Templater
+	Converter      services.Converter
+	StaticService  services.StaticService
+	Logger         *zap.SugaredLogger
 }

main.go

@@ -3,19 +3,27 @@ package main
 import (
 	"crypto/sha256"
 	"crypto/subtle"
-	"log"
+	"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 (
 	config *models.Config
+	logger *zap.SugaredLogger
 )
 
 func validateAPIKey(c *fiber.Ctx, key string) (bool, error) {
@@ -30,11 +38,26 @@ func validateAPIKey(c *fiber.Ctx, key string) (bool, error) {
 
 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")
@@ -43,7 +66,7 @@ func loadEnv() error {
 	viper.AutomaticEnv()
 	err := viper.ReadInConfig()
 	if err != nil {
-		return err
+		logger.Warn("No .env file found")
 	}
 
 	// Unmarshal the config from file and env into the config struct
@@ -52,45 +75,124 @@ func loadEnv() error {
 		return err
 	}
 
+	logger.Infow("Loaded config", "config", &config)
+
 	return nil
 }
 
-// @title LfK Document Server API
-// @description This is the API documentation for the LfK Document Server - a tool for pdf generation.
+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() {
 
-	err := loadEnv()
+	// Init the logger
+	err := initLogger()
 	if err != nil {
-		log.Fatal(err)
+		return
 	}
 
-	handler := handlers.DefaultHandler{
-		Config: config,
+	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: config.Prod,
 	})
 
+	app.Use(cors.New())
+	app.Use(requestid.New())
+
 	// Swagger documentation route
 	app.Get("/swagger/*", swagger.HandlerDefault)
 
 	v1 := app.Group("/v1")
-	v1.Use(keyauth.New(keyauth.Config{
+
+	pdfv1 := v1.Group("/pdfs")
+	pdfv1.Use(keyauth.New(keyauth.Config{
 		KeyLookup: "query:key",
 		Validator: validateAPIKey,
 	}))
 
-	v1.Get("/", func(c *fiber.Ctx) error {
-		return c.SendString("Hello, World!")
-	})
-	v1.Post("/contracts", handler.GenerateContract)
-	v1.Post("/cards", handler.GenerateCard)
-	v1.Post("/certificates", handler.GenerateCertificate)
+	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("0.0.0.0:" + config.Port))
+	logger.Infow("Starting server", "port", config.Port)
+	logger.Error(app.Listen("0.0.0.0:" + config.Port))
 }

models/certificate.go

@@ -11,10 +11,12 @@ type RunnerWithDonations struct {
 	MiddleName        string             `json:"middle_name" validate:"optional"`
 	LastName          string             `json:"last_name" validate:"required"`
 	Group             Group              `json:"group" validate:"required"`
+	CombinedGroupName string             `json:"combined_group_name" validate:"optional"`
 	Distance          int                `json:"distance" validate:"required"`
 	DistanceDonations []DistanceDonation `json:"distance_donations" validate:"optional"`
 	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 {
@@ -38,4 +40,12 @@ type CertificateTemplateOptions struct {
 	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

@@ -1,18 +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 int    `mapstructure:"SPONSOING_RECEIPTMINIMUM"`
+	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

@@ -14,16 +14,17 @@ type Runner struct {
 }
 
 type Group struct {
-	ID          int    `json:"id" validate:"required"`
 	Name        string `json:"name" validate:"required"`
-	ParentGroup *Group `json:"parent_group" validate:"optional"`
+	ParentGroup struct {
+		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"`
 	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

@@ -6,13 +6,9 @@ import (
 	"errors"
 	"fmt"
 	"html/template"
-	"image/png"
 	"strings"
 
-	"github.com/boombuler/barcode"
-	"github.com/boombuler/barcode/code128"
-	"github.com/boombuler/barcode/ean"
-	"github.com/boombuler/barcode/qr"
+	"go.uber.org/zap"
 )
 
 type Templater interface {
@@ -21,6 +17,9 @@ type Templater interface {
 }
 
 type DefaultTemplater struct {
+	BarcodeService BarcodeService
+	StaticService  StaticService
+	Logger         *zap.SugaredLogger
 }
 
 func idToEan13(id string, prefix string) (string, error) {
@@ -36,62 +35,56 @@ func idToEan13(id string, prefix string) (string, error) {
 	return id, nil
 }
 
-func (t *DefaultTemplater) GenerateBarcode(code string, format string, prefix string) (string, error) {
-	var generatedCode barcode.Barcode
+func (t *DefaultTemplater) GenerateEPC(iban string, bic string, name string, title string, amount int, currency string) (string, error) {
 	var err error
 
-	switch format {
-	case "ean13":
-		encodedEan, err := idToEan13(code, prefix)
+	code := fmt.Sprintf(`BCD
+002
+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)
-	if err != nil {
-		return "", err
-	}
+	buf, err := t.BarcodeService.GenerateBarcode(format, code, 1000, 500, 0)
 
-	var buf bytes.Buffer
-	err = png.Encode(&buf, scaledCode)
-	if err != nil {
-		return "", err
-	}
-
-	return base64.StdEncoding.EncodeToString(buf.Bytes()), nil
+	return base64.StdEncoding.EncodeToString(buf.Bytes()), err
 }
 
 func (t *DefaultTemplater) SelectSponsorImage(id int) (string, error) {
-	sponsors := []string{
-		"vrbank",
-		"odit",
-		"sparkasse",
+	logger := t.Logger.Named("SelectSponsorImage")
+	sponsors, err := t.StaticService.ListFilesInStaticSubFolder("images/sponsors")
+	if err != nil {
+		logger.Errorw("Failed to list sponsors", "error", err)
+		return "", err
 	}
-	return 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 GetImage(name), nil
+	return t.StaticService.GetImage(name), nil
 }
 
 func (t *DefaultTemplater) FormatUnit(unit string, locale string, amount int) (string, error) {
@@ -117,6 +110,7 @@ func (t *DefaultTemplater) StringToTemplate(templateString string) (*template.Te
 		"sponsorLogo": t.SelectSponsorImage,
 		"formatUnit":  t.FormatUnit,
 		"loadImage":   t.LoadImage,
+		"epcCode":     t.GenerateEPC,
 	}).Parse(templateString)
 }
 

services/templates.go

@@ -3,23 +3,67 @@ package services
 import (
 	_ "embed"
 	"fmt"
-	"log"
 	"os"
+
+	"go.uber.org/zap"
 )
 
-func GetTemplate(locale, templateName string) (string, error) {
+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 {
-		log.Printf("error reading template %s with locale %s: %v", templateName, locale, err)
+		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 GetImage(imageName string) string {
+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 {
-		log.Printf("error reading image %s: %v", imageName, err)
+		logger.Errorw("Failed to read image", "error", err)
 		return ImageErrorBase64
 	}
 	return string(content)

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

@@ -2,7 +2,7 @@
 
 <head>
   <meta charset="utf8">
-  <title>Sponsoring contract</title>
+  <title>Läuferurkunde</title>
   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css">
   <style>
     .sheet {
@@ -57,7 +57,7 @@
       </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>
+      <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" }}">
@@ -87,13 +87,30 @@
           <td>Gesamt</td>
           <td>{{ formatUnit "euro" $.Locale .TotalPerDistance }} {{ $.CurrencySymbol }}</td>
           <td>{{ formatUnit "euro" $.Locale .TotalDonations }} {{ $.CurrencySymbol }}</td>
-        </tfoot>
-      </table>
-    </main>
-    <footer class="certificate-footer">
-      <p>
-        {{ $.Footer }}
-      </p>
+        </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 }}

static/templates/certificate/en.html

@@ -2,7 +2,7 @@
 
 <head>
   <meta charset="utf8">
-  <title>Sponsoring contract</title>
+  <title>Runner certificate</title>
   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css">
   <style>
     .sheet {
@@ -57,7 +57,7 @@
       </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>
+      <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" }}">
@@ -91,8 +91,26 @@
       </table>
     </main>
     <footer class="certificate-footer">
-      <p>
-        {{ $.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>

static/templates/contract/de.html

@@ -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>
-          <p style="font-size: x-small; display: block;">Team/ Klasse</p>
+          <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>
         </div>
       </div>
       <p style="margin-top: -0.5rem">mit einem Betrag von _____ {{ $.CurrencySymbol }} pro gelaufenem Kilometer zu

static/templates/contract/en.html

@@ -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>