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
// @Tags cards
// @Accept json
// @Param data body models.CardRequest true "Card data"
// @Produce application/pdf
// @Router /cards [post]
func GenerateCard(c *fiber.Ctx) error {
	cardRequest := new(models.CardRequest)
	if err := c.BodyParser(cardRequest); err != nil {
		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
			"error": err.Error(),
		})
	}
	if !slices.Contains([]string{"en", "de"}, cardRequest.Locale) {
		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
			"error": "Invalid locale",
		})
	}

	generator := services.DefaultTemplater{}
	templateString, err := templates.GetTemplate(cardRequest.Locale, "card")
	if err != nil {
		log.Println(err)
		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
			"error": "Template not found",
		})
	}
	template, err := generator.StringToTemplate(templateString)
	if err != nil {
		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
			"error": err.Error(),
		})
	}

	genConfig := &models.CardTemplateOptions{
		Cards:         cardRequest.Cards,
		CardsSwapped:  invertCardArrayItems(cardRequest.Cards),
		EventName:     "Event name",
		CardSubtitle:  "Card subtitle",
		BarcodeFormat: "ean13",
		BarcodePrefix: "",
	}

	result, err := generator.Execute(template, genConfig)
	if err != nil {
		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
			"error": err.Error(),
		})
	}
	c.Set(fiber.HeaderContentType, "text/html")
	return c.SendString(result)
	// converter := services.GotenbergConverter{BaseUrl: "http://localhost:3001"}
	// pdf, err := converter.ToPdf(result, "a4", false)
	// if err != nil {
	// 	return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
	// 		"error": err.Error(),
	// 	})
	// }

	// c.Set(fiber.HeaderContentType, "application/pdf")
	// return c.Send(pdf)
}

func invertCardArrayItems(cards []models.Card) []models.Card {
	inverted := make([]models.Card, 0)
	for i := len(cards) - 1; i >= 0; i-- {
		inverted = append(inverted, cards[i])
	}
	return inverted
}