package adshttp

import (
	"fmt"
	authmiddleware "legalgo-BE-go/internal/api/http/middleware/auth"
	adsdomain "legalgo-BE-go/internal/domain/ads"
	"legalgo-BE-go/internal/domain/oss"
	adssvc "legalgo-BE-go/internal/services/ads"
	"legalgo-BE-go/internal/utilities/response"
	"net/http"

	"github.com/go-chi/chi/v5"
)

const _oneMB = 1 << 20
const _maxUploadSize = 2 * _oneMB
const _folderName = "/file"

func Create(
	router chi.Router,
	adsSvc adssvc.Ads,
) {
	router.With(authmiddleware.Authorize()).Post("/ads/create", func(w http.ResponseWriter, r *http.Request) {
		ctx := r.Context()

		err := r.ParseMultipartForm(10 << 20) // 10 MB
		if err != nil {
			response.RespondJsonErrorWithCode(
				ctx,
				w,
				err,
				response.ErrBadRequest.Code,
				response.ErrBadRequest.HttpCode,
				"unable to parse form",
			)
			return
		}

		url := r.FormValue("url")
		if url == "" {
			response.RespondJsonErrorWithCode(
				ctx,
				w,
				err,
				response.ErrBadRequest.Code,
				response.ErrBadRequest.HttpCode,
				"URL is missing",
			)
			return
		}

		file, header, err := r.FormFile("image")
		if err != nil {
			response.RespondJsonErrorWithCode(
				ctx,
				w,
				err,
				response.ErrBadRequest.Code,
				response.ErrBadRequest.HttpCode,
				"unable to retrieve image",
			)
			return
		}
		defer file.Close()

		if header.Size > int64(_maxUploadSize) {
			response.ResponseWithErrorCode(
				ctx,
				w,
				fmt.Errorf("file too big"),
				response.ErrBadRequest.Code,
				response.ErrBadRequest.HttpCode,
				fmt.Sprintf("The file is too big. The maximum size is %d MB", _maxUploadSize/_oneMB),
			)
			return
		}

		imageRequest := &oss.UploadFileRequest{
			FileHeader: header,
			FolderName: _folderName,
		}

		adsReq := adsdomain.AdsReq{
			Image: imageRequest,
			Url:   url,
		}

		if err := adsSvc.Create(ctx, adsReq); err != nil {
			response.RespondJsonErrorWithCode(
				ctx,
				w,
				err,
				response.ErrBadRequest.Code,
				response.ErrBadRequest.HttpCode,
				err.Error(),
			)
			return
		}

		response.RespondJsonSuccess(ctx, w, struct {
			Message string
		}{
			Message: "ads created successfully",
		})
	})
}