feat(handlers): Implemented contracts generation

handlers/contract.go

@@ -2,8 +2,11 @@ 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"
 )
 
@@ -22,6 +25,51 @@ func GenerateContract(c *fiber.Ctx) error {
 			"error": err.Error(),
 		})
 	}
-	log.Println(contract.Runners[0].Group.ParentGroup)
-	return c.SendString("Contract generated")
+	if !slices.Contains([]string{"en", "de"}, contract.Locale) {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"error": "Invalid locale",
+		})
+	}
+
+	var duplicates int = 2
+	var duplicatedRunners []models.Runner
+	for _, runner := range contract.Runners {
+		for i := 0; i < duplicates; i++ {
+			duplicatedRunners = append(duplicatedRunners, runner)
+		}
+	}
+	contract.Runners = duplicatedRunners
+
+	generator := services.DefaultTemplater{}
+	template, err := templates.GetTemplate(contract.Locale, "contract")
+	if err != nil {
+		log.Println(err)
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"error": "Template not found",
+		})
+	}
+	result, err := generator.Execute(template, &services.ContractTemplateOptions{
+		Runners:              contract.Runners,
+		CurrencySymbol:       "€",
+		Disclaimer:           "This is a disclaimer",
+		ReceiptMinimumAmount: 10,
+		EventName:            "Event name",
+		SponsoringHeader:     templates.ImageSponsoringHeaderBase64,
+	})
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": err.Error(),
+		})
+	}
+
+	converter := services.GotenbergConverter{BaseUrl: "http://localhost:3001"}
+	pdf, err := converter.ToPdf(result, "a5", true)
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": err.Error(),
+		})
+	}
+
+	c.Set(fiber.HeaderContentType, "application/pdf")
+	return c.Send(pdf)
 }