public PageResult Search(MusicRequestType type, string key, int page, int size = 20)
{
PageResult result = null;
var keys = GlobalHelper.ToSeparateByJieba(key);
switch (type)
{
case MusicRequestType.Song:
result = SearchSong(keys, page, size);
break;
case MusicRequestType.Album:
result = SearchAlbum(keys, page, size);
break;
case MusicRequestType.PlayList:
break;
case MusicRequestType.MV:
break;
case MusicRequestType.Lyric:
break;
case MusicRequestType.Singer:
result = SearchSinger(keys, page, size);
break;
case MusicRequestType.User:
break;
}
return(result);
}
/// <summary>
/// 获取某一页的歌曲类型搜索结果
/// </summary>
/// <param name="type"></param>
/// <param name="searchKey"></param>
/// <param name="currentPageNumber"></param>
/// <param name="size"></param>
/// <returns></returns>
private PageResult GetJMusicInfoOfPageModel(MusicRequestType type, string searchKey, int currentPageNumber, int size)
{
ISearchService musicSearchService = new SearchService();
var result = musicSearchService.Search(type, searchKey, currentPageNumber, size);
return(result);
}
/// <summary>
/// 添加UserLike
/// </summary>
/// <param name="userId"></param>
/// <param name="objId"></param>
/// <param name="type"></param>
public void Create(int userId, int objId, MusicRequestType type)
{
var user = _userManager.Find(userId);
if (user.IsAdmin)
{
ThrowException("用户不存在!");
}
UserLike userLike = null;
switch (type)
{
case MusicRequestType.Song:
var music = _musicManager.Find(objId);
if (!music.IsPublished)
{
ThrowException("歌曲不存在！");
}
if (JMDbContext.UserLike.Any(u => u.UserId == userId && u.MusicId == objId))
{
ThrowException("您的喜好歌曲中已存在该歌曲，无需重复添加");
}
userLike = new UserLike()
{
UserId = userId,
MusicId = objId,
};
break;
default:
return;
}
Create(userLike);
Save();
}
public bool IsExistOfUserMusicList(int musicListId, int objId, MusicRequestType type)
{
switch (type)
{
case MusicRequestType.Song:
return(_ctx.UserMusicListMusic.Any(l => l.MusicId == objId && l.MusicListId == musicListId));
default:
return(false);
}
}
/// <summary>
///
/// </summary>
/// <param name="musicId"></param>
/// <param name="type"></param>
/// <param name="isToAdd">false 删除 true添加 null toggle</param>
/// <returns></returns>
public bool ToggleUserLike(int musicId, MusicRequestType type, bool?isToAdd = null)
{
if (_musicSourceType == MusicSourceType.JM)
{
var user = App.User;
if (user != null)
{
switch (isToAdd)
{
case true:
if (!MusicService.IsUserLike(user.Id, musicId, type))
{
MusicService.ToggleUserLike(user.Id, musicId, type);
}
else
{
return(true);
}
break;
case false:
if (MusicService.IsUserLike(user.Id, musicId, type))
{
MusicService.ToggleUserLike(user.Id, musicId, type);
}
else
{
return(true);
}
break;
case null:
MusicService.ToggleUserLike(user.Id, musicId, type);
break;
}
if (_musicPlayerMenuViewModel.Id == musicId)
{
ChangeILikeState();
}
return(true);
}
else
{
JMMessageBox.Show("添加我喜欢出错", "请先登录", JMMessageBoxButtonType.OK, JMMessageBoxIconType.Error);
}
}
else
{
JMMessageBox.Show("添加我喜欢出错", "该音乐类型不支持", JMMessageBoxButtonType.OK, JMMessageBoxIconType.Error);
}
return(false);
}
public UserLike Find(int userId, int objId, MusicRequestType type)
{
UserLike userLike = null;
switch (type)
{
case MusicRequestType.Song:
userLike = JMDbContext.UserLike.SingleOrDefault(u => u.UserId == userId && u.MusicId == objId);
break;
}
return(userLike);
}
public void Delete(int userId, int objId, MusicRequestType type)
{
UserLike userLike = null;
switch (type)
{
case MusicRequestType.Song:
userLike = JMDbContext.UserLike.SingleOrDefault(u => u.UserId == userId && u.MusicId == objId);
break;
default:
return;
}
if (userLike != null)
{
Remove(userLike);
}
}
private void GetJMusics(MusicRequestType type, int page, int size)
{
Task.Factory.StartNew(() =>
{
try
{
var musicInfoOfPageModel = GetJMusicInfoOfPageModel(type, _lastSearchKey, page, size);
if (musicInfoOfPageModel == null)
{
return;
}
MusicSearchInfoChangedUtil.InvokeFromJMSearchChanged(musicInfoOfPageModel, page);
}
catch (Exception ex)
{
MusicSearchInfoChangedUtil.InvokeFromJMSearchChanged(null, page, false, ex.Message);
}
});
}
public void AddToUserMusicList(int userId, int objId, int userMusicListId, MusicRequestType type)
{
var user = _userManager.Find(userId);
if (user == null || user.IsAdmin)
{
ThrowException("用户不存在");
}
UserMusicList list = JMDbContext.UserMusicList.SingleOrDefault(u => u.Id == userMusicListId && u.UserId == userId && !u.IsDeleted);
if (list == null)
{
ThrowException("未找到该用户的歌单");
}
switch (type)
{
case MusicRequestType.Song:
var music = _musicManager.Find(objId);
if (music == null || !music.IsPublished)
{
ThrowException("歌曲不存在");
}
var listMusic = new UserMusicListMusic()
{
MusicId = music.Id,
MusicListId = list.Id
};
JMDbContext.UserMusicListMusic.Add(listMusic);
break;
default:
return;
}
Save();
}
public void AddToUserMusicList(int userId, int objId, int musicListId, MusicRequestType type)
{
_userMusicListManager.AddToUserMusicList(userId, objId, musicListId, type);
}
public bool IsUserLike(int userId, int objId, MusicRequestType type)
{
return(_userLikeManager.Find(userId, objId, type) != null);
}
public void ToggleUserLike(int userId, int objId, MusicRequestType type)
{
_userLikeManager.Toggle(userId, objId, type);
}
public MusicSearchInfoRequestArgs(MusicRequestType type, int targetPageNumber, int size = 20) : base(targetPageNumber)
{
Type = type;
Size = size;
}
public static void InvokeFromJMRequest(MusicRequestType type, int targetPageNumber = 1, int size = 20) => JMRequestEvent?.Invoke(null, new MusicSearchInfoRequestArgs(type, targetPageNumber, size));
