package handlers

import (
	"errors"
	"net/http"
	"strconv"

	"warpbox.dev/backend/libs/helpers"
	"warpbox.dev/backend/libs/services"
)

func (a *App) Upload(w http.ResponseWriter, r *http.Request) {
	r.Body = http.MaxBytesReader(w, r.Body, a.uploadService.MaxUploadSize()*8)
	if err := r.ParseMultipartForm(a.uploadService.MaxUploadSize() * 8); err != nil {
		helpers.WriteJSONError(w, http.StatusBadRequest, "upload form could not be read")
		return
	}

	files := r.MultipartForm.File["file"]
	result, err := a.uploadService.CreateBox(files, services.UploadOptions{
		MaxDays:           parseInt(r.FormValue("max_days")),
		MaxDownloads:      parseInt(r.FormValue("max_downloads")),
		Password:          r.FormValue("password"),
		ObfuscateMetadata: r.FormValue("obfuscate_metadata") == "on",
	})
	if err != nil {
		a.logger.Warn("upload failed", "source", "user-upload", "severity", "warn", "code", 4001, "error", err.Error())
		helpers.WriteJSONError(w, http.StatusBadRequest, err.Error())
		return
	}

	helpers.WriteJSON(w, http.StatusCreated, result)
}

func parseInt(value string) int {
	if value == "" {
		return 0
	}
	parsed, err := strconv.Atoi(value)
	if err != nil {
		return 0
	}
	return parsed
}

func statusForDownloadError(err error) int {
	if errors.Is(err, http.ErrMissingFile) {
		return http.StatusNotFound
	}
	return http.StatusForbidden
}