the first version

yuafengfreeapi.go

@@ -0,0 +1,149 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+type YuafengAPIFreeResponse struct {
+	Data struct {
+		Song      string `json:"song"`
+		Singer    string `json:"singer"`
+		Cover     string `json:"cover"`
+		AlbumName string `json:"album_name"`
+		Music     string `json:"music"`
+		Lyric     string `json:"lyric"`
+	} `json:"data"`
+}
+
+// 枫雨API response handler.
+func YuafengAPIResponseHandler(sources, song, singer string) MusicItem {
+	fmt.Printf("[Info] Fetching music data from 枫林 free API for %s by %s\n", song, singer)
+	var url string
+	switch sources {
+	case "kuwo":
+		url = "https://api.yuafeng.cn/API/ly/kwmusic.php"
+	case "netease":
+		url = "https://api.yuafeng.cn/API/ly/wymusic.php"
+	case "migu":
+		url = "https://api.yuafeng.cn/API/ly/mgmusic.php"
+	case "baidu":
+		url = "https://api.yuafeng.cn/API/ly/bdmusic.php"
+	default:
+		return MusicItem{}
+	}
+	resp, err := http.Get(url + "?msg=" + song + "&n=1")
+	if err != nil {
+		fmt.Println("[Error] Error fetching the data from Yuafeng free API:", err)
+		return MusicItem{}
+	}
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		fmt.Println("[Error] Error reading the response body from Yuafeng free API:", err)
+		return MusicItem{}
+	}
+	var response YuafengAPIFreeResponse
+	err = json.Unmarshal(body, &response)
+	if err != nil {
+		fmt.Println("[Error] Error unmarshalling the data from Yuafeng free API:", err)
+		return MusicItem{}
+	}
+
+	// Create directory
+	dirName := fmt.Sprintf("./files/cache/music/%s-%s", response.Data.Singer, response.Data.Song)
+	err = os.MkdirAll(dirName, 0755)
+	if err != nil {
+		fmt.Println("[Error] Error creating directory:", err)
+		return MusicItem{}
+	}
+
+	if response.Data.Music == "" {
+		fmt.Println("[Warning] Music URL is empty")
+		return MusicItem{}
+	}
+
+	// Identify music file format
+	musicExt, err := getMusicFileExtension(response.Data.Music)
+	if err != nil {
+		fmt.Println("[Error] Error identifying music file format:", err)
+		return MusicItem{}
+	}
+
+	// Download music files
+	err = downloadFile(filepath.Join(dirName, "music_full"+musicExt), response.Data.Music)
+	if err != nil {
+		fmt.Println("[Error] Error downloading music file:", err)
+	}
+
+	// Retrieve music file duration
+	musicFilePath := filepath.Join(dirName, "music_full"+musicExt)
+	duration := getMusicDuration(musicFilePath)
+
+	// Download cover image
+	ext := filepath.Ext(response.Data.Cover)
+	err = downloadFile(filepath.Join(dirName, "cover"+ext), response.Data.Cover)
+	if err != nil {
+		fmt.Println("[Error] Error downloading cover image:", err)
+	}
+
+	// Check if the lyrics format is in link format
+	lyricData := response.Data.Lyric
+	if lyricData == "获取歌词失败" {
+		// If it is "获取歌词失败", do nothing
+		fmt.Println("[Warning] Lyric retrieval failed, skipping lyric file creation and download.")
+	} else if !strings.HasPrefix(lyricData, "http://") && !strings.HasPrefix(lyricData, "https://") {
+		// If it is not in link format, write the lyrics to the file line by line
+		lines := strings.Split(lyricData, "\r\n")
+		lyricFilePath := filepath.Join(dirName, "lyric.lrc")
+		file, err := os.Create(lyricFilePath)
+		if err != nil {
+			fmt.Println("[Error] Error creating lyric file:", err)
+			return MusicItem{}
+		}
+		defer file.Close()
+
+		for _, line := range lines {
+			_, err := file.WriteString(line + "\r\n")
+			if err != nil {
+				fmt.Println("[Error] Error writing to lyric file:", err)
+				return MusicItem{}
+			}
+		}
+	} else {
+		// If it is in link format, download the lyrics file
+		err = downloadFile(filepath.Join(dirName, "lyric.lrc"), lyricData)
+		if err != nil {
+			fmt.Println("[Error] Error downloading lyric file:", err)
+		}
+	}
+
+	// Compress and segment audio file
+	err = compressAndSegmentAudio(filepath.Join(dirName, "music_full"+musicExt), dirName)
+	if err != nil {
+		fmt.Println("[Error] Error compressing and segmenting audio:", err)
+	}
+
+	// Create m3u8 playlist
+	err = createM3U8Playlist(dirName)
+	if err != nil {
+		fmt.Println("[Error] Error creating m3u8 playlist:", err)
+	}
+
+	websiteURL := os.Getenv("WEBSITE_URL")
+	return MusicItem{
+		Title:        response.Data.Song,
+		Artist:       response.Data.Singer,
+		CoverURL:     websiteURL + "/cache/music/" + response.Data.Singer + "-" + response.Data.Song + "/cover" + ext,
+		LyricURL:     websiteURL + "/cache/music/" + response.Data.Singer + "-" + response.Data.Song + "/lyric.lrc",
+		AudioFullURL: websiteURL + "/cache/music/" + response.Data.Singer + "-" + response.Data.Song + "/music_full" + musicExt,
+		AudioURL:     websiteURL + "/cache/music/" + response.Data.Singer + "-" + response.Data.Song + "/music.mp3",
+		M3U8URL:      websiteURL + "/cache/music/" + response.Data.Singer + "-" + response.Data.Song + "/music.m3u8",
+		Duration:     duration,
+	}
+}