BeatLyrics/BeatLyrics.Tool/DataProvider/OnlineLyric/NeteaseCloudMusicLyricProvider.cs

using BeatLyrics.Tool.DataProvider.OnlineLyric.Models;
using BeatLyrics.Tool.Models;
using Newtonsoft.Json;
using System;
using System.Linq;

namespace BeatLyrics.Tool.DataProvider.OnlineLyric
{
    public class NeteaseCloudMusicLyricProvider : LyricProvider
    {
        public override LyricSearchResultItem[] Search(string songName, string artist)
        {
            var url = $"https://music.163.com/api/search/get/web?hlposttag=&s={songName} {artist}&type=1&offset=0&total=true&limit=20";
            var wc = new System.Net.WebClient { Encoding = System.Text.Encoding.UTF8 };
            var json = wc.DownloadString(url);
            var parsed = JsonConvert.DeserializeAnonymousType(json, new
            {
                result = new
                {
                    songs = new[]
                    {
                        new
                        {
                            id = 0,
                            name = (string) null,
                            duration=0,
                            artists = new[]
                            {
                                new
                                {
                                    name = (string) null,
                                }
                            },
                            alias=(string[])null,
                        }
                    },
                }
            });

            var arr = parsed.result.songs.Select(p => new LyricSearchResultItem(nameof(NeteaseCloudMusicLyricProvider))
            {
                Id = p.id.ToString(),
                Name = p.name,
                Artists = string.Join(";", p.artists.Select(q => q.name)),
                Duration = p.duration,
                Remarks = string.Join(Environment.NewLine, p.alias)
            }).ToArray();

            return arr;
        }

        public override bool GetDetail(LyricSearchResultItem input)
        {
            if (input.ProviderName != nameof(NeteaseCloudMusicLyricProvider)) throw new ArgumentException("Provider no matched");

            var url = $"https://music.163.com/api/song/lyric?id={input.Id}&lv=1&kv=1&tv=1";
            var wc = new System.Net.WebClient { Encoding = System.Text.Encoding.UTF8 };
            var json = wc.DownloadString(url);

            var obj = JsonConvert.DeserializeAnonymousType(json, new
            {
                lrc = new
                {
                    lyric = (string)null
                },
                klyric = new
                {
                    lyric = (string)null
                },
                tlyric = new
                {
                    lyric = (string)null
                }
            });

            if (string.IsNullOrWhiteSpace(obj.lrc?.lyric)) return false;

            input.DetailsText = obj.lrc.lyric;
            input.Details = ParseLrc(obj.lrc.lyric, input.Duration);

            if (input.Details.Count == 0)
            {
                var lines = obj.lrc.lyric.Split('\r', '\n');
                var pos = 0;
                var step = 1000;
                var len = 500;

                input.Details.Add(new LyricDetailExt
                {
                    Text = "** Warning: Only text found **",
                    DurationMs = len,
                    TimeMs = pos,
                });

                pos += step;

                foreach (var line in lines)
                {
                    if (string.IsNullOrWhiteSpace(line)) continue;
                    input.Details.Add(new LyricDetailExt
                    {
                        Text = line,
                        DurationMs = len,
                        TimeMs = pos,
                    });
                    pos += step;
                }
            }

            if (false == string.IsNullOrWhiteSpace(obj.tlyric?.lyric))
            {
                input.DetailsTranslatedText = obj.tlyric.lyric;
                input.DetailsTranslated = ParseLrc(obj.tlyric.lyric, input.Duration);
            }

            input.IsDetailsLoaded = true;
            return true;
        }
    }
}