package main

import (
	"fmt"
	"io"
	"net/http"
	"strconv"

	"go.senan.xyz/taglib"
)

func getPodcastCover(imageUrl string) ([]byte, error) {
	resp, err := http.Get(imageUrl)
	if err != nil {
		return nil, fmt.Errorf("failed to fetch podcast cover image: %v", err)
	}
	defer resp.Body.Close()

	data, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, fmt.Errorf("failed to read image data from response: %v", err)
	}

	return data, nil
}

func appendPodcastMetadata(filePath string, feedItem RSSFeedItem, episodeNumber int, podcast Podcast) error {
	if err := taglib.WriteTags(filePath, map[string][]string{
		taglib.Artist:      {podcast.Name},
		taglib.AlbumArtist: {podcast.Name},
		taglib.Album:       {podcast.Name},
		taglib.TrackNumber: {strconv.Itoa(episodeNumber)},
		taglib.Podcast:     {podcast.Name},
		taglib.PodcastURL:  {podcast.Link},
		taglib.PodcastDesc: {podcast.Description},
		taglib.Title:       {feedItem.Title},
	}, 0); err != nil {
		return fmt.Errorf("failed to append tags: %v", err)
	}

	imgData, err := getPodcastCover(podcast.Image)
	if err != nil {
		return fmt.Errorf("failed to fetch podcast cover: %v", err)
	}

	if err := taglib.WriteImage(filePath, imgData); err != nil {
		return fmt.Errorf("failed to append cover image: %v", err)
	}

	return nil
}