fetchAll从index.js提到各个utils中

netease_music/src/getInfo/lyricInfoUtils.js

@@ -2,11 +2,32 @@ const fs = require('fs');
 const path = require('path');
 
 const requestUtils = require('../../../utils/requestUtils');
+const sleepUtils = require('../../../utils/sleepUtils');
 
 const dbUtils = global.dbUtils;
 
+// 从数据库中查出还缺少的歌词，并进行爬取
+async function fetchAll() {
+    console.log("start fetching lyrics ...");
+    var songIds = await dbUtils.query(`
+        SELECT DISTINCT song_id FROM song WHERE song_id NOT IN ( SELECT DISTINCT song_id FROM lyric )
+    `, []);
+    songIds = songIds.map(song => song.song_id);
+    for (let i = 0; i < songIds.length; i++) {
+        await global.checkIsExit();
+        const songId = songIds[i];
+        console.log(`${i}/${songIds.length} | lyric: ${songId} | ${await global.statistics()}`);
+        try {
+            await fetch({ songId: songId });
+        } catch (err) {
+            console.error(err);
+        }
+        await sleepUtils.sleep(global.sleepTime);
+    }
+}
+
 // 获取歌词详情
-async function fetch({ songId }) {
+async function fetch({ songId, debug = false }) {
     var url = `https://music.163.com/api/song/lyric?id=${songId}&lv=1`;
 
     try {
@@ -41,4 +62,5 @@ async function fetch({ songId }) {
 
 module.exports = {
     fetch: fetch,
+    fetchAll: fetchAll,
 }