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improve performance of getting channel list

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This commit is contained in:
Luke Pulverenti
2017-04-16 21:45:44 -04:00
parent 25e6e0a572
commit eddcc46602
6 changed files with 84 additions and 25 deletions
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33
Emby.Server.Implementations/LiveTv/LiveTvManager.cs
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@@ -2284,7 +2284,7 @@ namespace Emby.Server.Implementations.LiveTv
};
}
public void AddChannelInfo(List<Tuple<BaseItemDto, LiveTvChannel>> tuples, DtoOptions options, User user)
public async Task AddChannelInfo(List<Tuple<BaseItemDto, LiveTvChannel>> tuples, DtoOptions options, User user)
{
var now = DateTime.UtcNow;
@@ -2304,6 +2304,12 @@ namespace Emby.Server.Implementations.LiveTv
RemoveFields(options);
var currentProgramsList = new List<BaseItem>();
var currentChannelsDict = new Dictionary<string, BaseItemDto>();
var addCurrentProgram = options.AddCurrentProgram;
var addMediaSources = options.Fields.Contains(ItemFields.MediaSources);
foreach (var tuple in tuples)
{
var dto = tuple.Item1;
@@ -2314,19 +2320,38 @@ namespace Emby.Server.Implementations.LiveTv
dto.ChannelType = channel.ChannelType;
dto.ServiceName = channel.ServiceName;
if (options.Fields.Contains(ItemFields.MediaSources))
currentChannelsDict[dto.Id] = dto;
if (addMediaSources)
{
dto.MediaSources = channel.GetMediaSources(true).ToList();
}
if (options.AddCurrentProgram)
if (addCurrentProgram)
{
var channelIdString = channel.Id.ToString("N");
var currentProgram = programs.FirstOrDefault(i => string.Equals(i.ChannelId, channelIdString));
if (currentProgram != null)
{
dto.CurrentProgram = _dtoService.GetBaseItemDto(currentProgram, options, user);
currentProgramsList.Add(currentProgram);
}
}
}
if (addCurrentProgram)
{
var currentProgramDtos = await _dtoService.GetBaseItemDtos(currentProgramsList, options, user).ConfigureAwait(false);
foreach (var programDto in currentProgramDtos)
{
if (!string.IsNullOrWhiteSpace(programDto.ChannelId))
{
BaseItemDto channelDto;
if (currentChannelsDict.TryGetValue(programDto.ChannelId, out channelDto))
{
channelDto.CurrentProgram = programDto;
}
}
}
}