TMusic.Service/MusicService.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Newtonsoft.Json.Linq;
using HtmlAgilityPack;
using TMusic.Util;
using TMusic.Model;

namespace TMusic.Service
{
    public class MusicService : BaseService
    {
        private string file_name = "music_list.json";

        private static string GK_COOKIE = "";

        public async Task<bool> DownloadMusicFile(string url, string filePath, Action<double, double> downloadProcessing = null, Action<double> downlaodCompleted = null)
        {
            FileUtil.CreateDirectory(filePath);

            var result = await base.DownloadFileAsync(url, filePath, useBaseUrl: false, downlaodCompleted: downlaodCompleted);
            return result.Flag;
        }

        public List<MusicModel> GetAllMusicList()
        {
            return GetFileModel<List<MusicModel>>(file_name);
        }

        public void AddMusic(IList<MusicModel> list, MusicModel model)
        {
            MusicModel item = list.FirstOrDefault(m => m.SongId == model.SongId && m.Type == model.Type);
            if (item == null)
            {
                list.Add(model);
                Update(list);
            }
            else
            {
                list.Remove(item);
                list.Add(model);
                Update(list);
            }
        }

        public void AddMusicList(IList<MusicModel> list, List<MusicModel> addList)
        {
            if (StringUtil.IsEmpty(addList)) return;

            foreach (MusicModel model in addList)
            {
                MusicModel item = list.FirstOrDefault(m => m.SongId == model.SongId && m.Type == model.Type);
                if (item == null)
                {
                    list.Add(model);
                }
            }