package handler

import (
	"net/http"
	"os"
	"path/filepath"

	"podstalk/store"
)

type SettingsHandler struct {
	Store     *store.Store
	UploadDir string
}

func (h *SettingsHandler) ServeSettings(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
		return
	}

	userID := UserIDFromContext(r)
	user, err := h.Store.GetUser(userID)
	if err != nil {
		http.Redirect(w, r, "/", http.StatusSeeOther)
		return
	}

	if err := r.ParseMultipartForm(10 << 20); err != nil {
		http.Redirect(w, r, "/?error=file+too+large", http.StatusSeeOther)
		return
	}

	title := r.FormValue("podcast_title")
	if title == "" {
		title = user.PodcastTitle
	}

	author := r.FormValue("podcast_author")
	if author == "" {
		author = user.PodcastAuthor
	}

	image := user.PodcastImage

	// Handle podcast image upload
	file, header, err := r.FormFile("podcast_image")
	if err == nil {
		defer file.Close()

		// Remove old image
		if image != "" {
			os.Remove(filepath.Join(h.UploadDir, image))
		}

		catDir := filepath.Join(h.UploadDir, "images")
		os.MkdirAll(catDir, 0755)

		ext := filepath.Ext(header.Filename)
		if ext == "" {
			ext = ".png"
		}
		dst, err := os.Create(filepath.Join(catDir, "podcast"+ext))
		if err == nil {
			defer dst.Close()
			dst.ReadFrom(file)
			image = "images/podcast" + ext
		}
	}

	h.Store.UpdateUserPodcast(userID, title, image, author)
	http.Redirect(w, r, "/", http.StatusSeeOther)
}