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jellyfin/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs

823 lines
33 KiB

#nullable disable
#pragma warning disable CS1591
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Json;
using System.Net.Mime;
using System.Security.Cryptography;
using System.Text;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using Emby.Server.Implementations.LiveTv.Listings.SchedulesDirectDtos;
using Jellyfin.Extensions;
using Jellyfin.Extensions.Json;
using MediaBrowser.Common.Net;
using MediaBrowser.Controller.Authentication;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.LiveTv;
using Microsoft.Extensions.Logging;
namespace Emby.Server.Implementations.LiveTv.Listings
{
public class SchedulesDirect : IListingsProvider, IDisposable
{
private const string ApiUrl = "https://json.schedulesdirect.org/20141201";
private readonly ILogger<SchedulesDirect> _logger;
private readonly IHttpClientFactory _httpClientFactory;
private readonly SemaphoreSlim _tokenSemaphore = new SemaphoreSlim(1, 1);
private readonly ConcurrentDictionary<string, NameValuePair> _tokens = new ConcurrentDictionary<string, NameValuePair>();
private readonly JsonSerializerOptions _jsonOptions = JsonDefaults.Options;
private DateTime _lastErrorResponse;
private bool _disposed = false;
public SchedulesDirect(
ILogger<SchedulesDirect> logger,
IHttpClientFactory httpClientFactory)
{
_logger = logger;
_httpClientFactory = httpClientFactory;
}
/// <inheritdoc />
public string Name => "Schedules Direct";
/// <inheritdoc />
public string Type => nameof(SchedulesDirect);
private static List<string> GetScheduleRequestDates(DateTime startDateUtc, DateTime endDateUtc)
{
var dates = new List<string>();
var start = new[] { startDateUtc, startDateUtc.ToLocalTime() }.Min().Date;
var end = new[] { endDateUtc, endDateUtc.ToLocalTime() }.Max().Date;
while (start <= end)
{
dates.Add(start.ToString("yyyy-MM-dd", CultureInfo.InvariantCulture));
start = start.AddDays(1);
}
return dates;
}
public async Task<IEnumerable<ProgramInfo>> GetProgramsAsync(ListingsProviderInfo info, string channelId, DateTime startDateUtc, DateTime endDateUtc, CancellationToken cancellationToken)
{
ArgumentException.ThrowIfNullOrEmpty(channelId);
// Normalize incoming input
channelId = channelId.Replace(".json.schedulesdirect.org", string.Empty, StringComparison.OrdinalIgnoreCase).TrimStart('I');
var token = await GetToken(info, cancellationToken).ConfigureAwait(false);
if (string.IsNullOrEmpty(token))
{
_logger.LogWarning("SchedulesDirect token is empty, returning empty program list");
return Enumerable.Empty<ProgramInfo>();
}
var dates = GetScheduleRequestDates(startDateUtc, endDateUtc);
_logger.LogInformation("Channel Station ID is: {ChannelID}", channelId);
var requestList = new List<RequestScheduleForChannelDto>()
{
new RequestScheduleForChannelDto()
{
StationId = channelId,
Date = dates
}
};
_logger.LogDebug("Request string for schedules is: {@RequestString}", requestList);
using var options = new HttpRequestMessage(HttpMethod.Post, ApiUrl + "/schedules");
options.Content = JsonContent.Create(requestList, options: _jsonOptions);
options.Headers.TryAddWithoutValidation("token", token);
using var response = await Send(options, true, info, cancellationToken).ConfigureAwait(false);
await using var responseStream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
var dailySchedules = await JsonSerializer.DeserializeAsync<IReadOnlyList<DayDto>>(responseStream, _jsonOptions, cancellationToken).ConfigureAwait(false);
if (dailySchedules is null)
{
return Array.Empty<ProgramInfo>();
}
_logger.LogDebug("Found {ScheduleCount} programs on {ChannelID} ScheduleDirect", dailySchedules.Count, channelId);
using var programRequestOptions = new HttpRequestMessage(HttpMethod.Post, ApiUrl + "/programs");
programRequestOptions.Headers.TryAddWithoutValidation("token", token);
var programIds = dailySchedules.SelectMany(d => d.Programs.Select(s => s.ProgramId)).Distinct();
programRequestOptions.Content = JsonContent.Create(programIds, options: _jsonOptions);
using var innerResponse = await Send(programRequestOptions, true, info, cancellationToken).ConfigureAwait(false);
await using var innerResponseStream = await innerResponse.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
var programDetails = await JsonSerializer.DeserializeAsync<IReadOnlyList<ProgramDetailsDto>>(innerResponseStream, _jsonOptions, cancellationToken).ConfigureAwait(false);
if (programDetails is null)
{
return Array.Empty<ProgramInfo>();
}
var programDict = programDetails.ToDictionary(p => p.ProgramId, y => y);
var programIdsWithImages = programDetails
.Where(p => p.HasImageArtwork).Select(p => p.ProgramId)
.ToList();
var images = await GetImageForPrograms(info, programIdsWithImages, cancellationToken).ConfigureAwait(false);
var programsInfo = new List<ProgramInfo>();
foreach (ProgramDto schedule in dailySchedules.SelectMany(d => d.Programs))
{
// _logger.LogDebug("Proccesing Schedule for statio ID " + stationID +
// " which corresponds to channel " + channelNumber + " and program id " +
// schedule.ProgramId + " which says it has images? " +
// programDict[schedule.ProgramId].hasImageArtwork);
if (string.IsNullOrEmpty(schedule.ProgramId))
{
continue;
}
if (images is not null)
{
var imageIndex = images.FindIndex(i => i.ProgramId == schedule.ProgramId[..10]);
if (imageIndex > -1)
{
var programEntry = programDict[schedule.ProgramId];
var allImages = images[imageIndex].Data;
3 years ago
var imagesWithText = allImages.Where(i => string.Equals(i.Text, "yes", StringComparison.OrdinalIgnoreCase)).ToList();
var imagesWithoutText = allImages.Where(i => string.Equals(i.Text, "no", StringComparison.OrdinalIgnoreCase)).ToList();
const double DesiredAspect = 2.0 / 3;
programEntry.PrimaryImage = GetProgramImage(ApiUrl, imagesWithText, DesiredAspect, token) ??
GetProgramImage(ApiUrl, allImages, DesiredAspect, token);
const double WideAspect = 16.0 / 9;
programEntry.ThumbImage = GetProgramImage(ApiUrl, imagesWithText, WideAspect, token);
// Don't supply the same image twice
if (string.Equals(programEntry.PrimaryImage, programEntry.ThumbImage, StringComparison.Ordinal))
{
programEntry.ThumbImage = null;
}
programEntry.BackdropImage = GetProgramImage(ApiUrl, imagesWithoutText, WideAspect, token);
// programEntry.bannerImage = GetProgramImage(ApiUrl, data, "Banner", false) ??
// GetProgramImage(ApiUrl, data, "Banner-L1", false) ??
// GetProgramImage(ApiUrl, data, "Banner-LO", false) ??
// GetProgramImage(ApiUrl, data, "Banner-LOT", false);
}
}
programsInfo.Add(GetProgram(channelId, schedule, programDict[schedule.ProgramId]));
}
return programsInfo;
}
private static int GetSizeOrder(ImageDataDto image)
{
if (int.TryParse(image.Height, out int value))
{
return value;
}
return 0;
}
private static string GetChannelNumber(MapDto map)
{
var channelNumber = map.LogicalChannelNumber;
8 years ago
if (string.IsNullOrWhiteSpace(channelNumber))
{
channelNumber = map.Channel;
}
if (string.IsNullOrWhiteSpace(channelNumber))
{
channelNumber = map.AtscMajor + "." + map.AtscMinor;
}
return channelNumber.TrimStart('0');
}
private static bool IsMovie(ProgramDetailsDto programInfo)
{
return string.Equals(programInfo.EntityType, "movie", StringComparison.OrdinalIgnoreCase);
}
private ProgramInfo GetProgram(string channelId, ProgramDto programInfo, ProgramDetailsDto details)
{
if (programInfo.AirDateTime is null)
{
return null;
}
var startAt = programInfo.AirDateTime.Value;
var endAt = startAt.AddSeconds(programInfo.Duration);
var audioType = ProgramAudio.Stereo;
var programId = programInfo.ProgramId ?? string.Empty;
string newID = programId + "T" + startAt.Ticks + "C" + channelId;
if (programInfo.AudioProperties.Count != 0)
{
if (programInfo.AudioProperties.Contains("atmos", StringComparison.OrdinalIgnoreCase))
8 years ago
{
audioType = ProgramAudio.Atmos;
}
else if (programInfo.AudioProperties.Contains("dd 5.1", StringComparison.OrdinalIgnoreCase))
{
audioType = ProgramAudio.DolbyDigital;
}
else if (programInfo.AudioProperties.Contains("dd", StringComparison.OrdinalIgnoreCase))
{
audioType = ProgramAudio.DolbyDigital;
}
else if (programInfo.AudioProperties.Contains("stereo", StringComparison.OrdinalIgnoreCase))
{
audioType = ProgramAudio.Stereo;
}
else
{
audioType = ProgramAudio.Mono;
}
}
string episodeTitle = null;
if (details.EpisodeTitle150 is not null)
{
episodeTitle = details.EpisodeTitle150;
}
var info = new ProgramInfo
{
ChannelId = channelId,
Id = newID,
StartDate = startAt,
EndDate = endAt,
Name = details.Titles[0].Title120 ?? "Unknown",
OfficialRating = null,
CommunityRating = null,
EpisodeTitle = episodeTitle,
Audio = audioType,
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// IsNew = programInfo.@new ?? false,
IsRepeat = programInfo.New is null,
IsSeries = string.Equals(details.EntityType, "episode", StringComparison.OrdinalIgnoreCase),
ImageUrl = details.PrimaryImage,
ThumbImageUrl = details.ThumbImage,
IsKids = string.Equals(details.Audience, "children", StringComparison.OrdinalIgnoreCase),
IsSports = string.Equals(details.EntityType, "sports", StringComparison.OrdinalIgnoreCase),
IsMovie = IsMovie(details),
Etag = programInfo.Md5,
IsLive = string.Equals(programInfo.LiveTapeDelay, "live", StringComparison.OrdinalIgnoreCase),
IsPremiere = programInfo.Premiere || (programInfo.IsPremiereOrFinale ?? string.Empty).IndexOf("premiere", StringComparison.OrdinalIgnoreCase) != -1
};
var showId = programId;
if (!info.IsSeries)
{
// It's also a series if it starts with SH
info.IsSeries = showId.StartsWith("SH", StringComparison.OrdinalIgnoreCase) && showId.Length >= 14;
}
// According to SchedulesDirect, these are generic, unidentified episodes
// SH005316560000
var hasUniqueShowId = !showId.StartsWith("SH", StringComparison.OrdinalIgnoreCase) ||
!showId.EndsWith("0000", StringComparison.OrdinalIgnoreCase);
if (!hasUniqueShowId)
{
showId = newID;
}
info.ShowId = showId;
if (programInfo.VideoProperties is not null)
{
info.IsHD = programInfo.VideoProperties.Contains("hdtv", StringComparison.OrdinalIgnoreCase);
info.Is3D = programInfo.VideoProperties.Contains("3d", StringComparison.OrdinalIgnoreCase);
}
if (details.ContentRating is not null && details.ContentRating.Count > 0)
{
info.OfficialRating = details.ContentRating[0].Code.Replace("TV", "TV-", StringComparison.Ordinal)
.Replace("--", "-", StringComparison.Ordinal);
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var invalid = new[] { "N/A", "Approved", "Not Rated", "Passed" };
if (invalid.Contains(info.OfficialRating, StringComparison.OrdinalIgnoreCase))
{
info.OfficialRating = null;
}
}
if (details.Descriptions is not null)
{
if (details.Descriptions.Description1000 is not null && details.Descriptions.Description1000.Count > 0)
{
info.Overview = details.Descriptions.Description1000[0].Description;
}
else if (details.Descriptions.Description100 is not null && details.Descriptions.Description100.Count > 0)
{
info.Overview = details.Descriptions.Description100[0].Description;
}
}
if (info.IsSeries)
{
info.SeriesId = programId.Substring(0, 10);
info.SeriesProviderIds[MetadataProvider.Zap2It.ToString()] = info.SeriesId;
if (details.Metadata is not null)
{
foreach (var metadataProgram in details.Metadata)
{
var gracenote = metadataProgram.Gracenote;
if (gracenote is not null)
{
info.SeasonNumber = gracenote.Season;
if (gracenote.Episode > 0)
{
info.EpisodeNumber = gracenote.Episode;
}
break;
}
}
}
}
if (details.OriginalAirDate is not null)
{
info.OriginalAirDate = details.OriginalAirDate;
info.ProductionYear = info.OriginalAirDate.Value.Year;
}
if (details.Movie is not null)
{
if (!string.IsNullOrEmpty(details.Movie.Year)
&& int.TryParse(details.Movie.Year, out int year))
{
info.ProductionYear = year;
}
}
if (details.Genres is not null)
{
info.Genres = details.Genres.Where(g => !string.IsNullOrWhiteSpace(g)).ToList();
info.IsNews = details.Genres.Contains("news", StringComparison.OrdinalIgnoreCase);
if (info.Genres.Contains("children", StringComparison.OrdinalIgnoreCase))
{
info.IsKids = true;
}
}
return info;
}
private static string GetProgramImage(string apiUrl, IEnumerable<ImageDataDto> images, double desiredAspect, string token)
{
var match = images
.OrderBy(i => Math.Abs(desiredAspect - GetAspectRatio(i)))
.ThenByDescending(i => GetSizeOrder(i))
.FirstOrDefault();
if (match is null)
{
return null;
}
var uri = match.Uri;
if (string.IsNullOrWhiteSpace(uri))
{
return null;
}
else if (uri.IndexOf("http", StringComparison.OrdinalIgnoreCase) != -1)
{
return uri;
}
else
{
return apiUrl + "/image/" + uri + "?token=" + token;
}
}
private static double GetAspectRatio(ImageDataDto i)
{
int width = 0;
int height = 0;
if (!string.IsNullOrWhiteSpace(i.Width))
{
_ = int.TryParse(i.Width, out width);
}
if (!string.IsNullOrWhiteSpace(i.Height))
{
_ = int.TryParse(i.Height, out height);
}
if (height == 0 || width == 0)
{
return 0;
}
double result = width;
result /= height;
return result;
}
private async Task<IReadOnlyList<ShowImagesDto>> GetImageForPrograms(
ListingsProviderInfo info,
IReadOnlyList<string> programIds,
CancellationToken cancellationToken)
{
var token = await GetToken(info, cancellationToken).ConfigureAwait(false);
if (programIds.Count == 0)
{
return Array.Empty<ShowImagesDto>();
}
StringBuilder str = new StringBuilder("[", 1 + (programIds.Count * 13));
foreach (ReadOnlySpan<char> i in programIds)
{
str.Append('"')
.Append(i.Slice(0, 10))
.Append("\",");
}
// Remove last ,
str.Length--;
str.Append(']');
9 years ago
using var message = new HttpRequestMessage(HttpMethod.Post, ApiUrl + "/metadata/programs")
{
Content = new StringContent(str.ToString(), Encoding.UTF8, MediaTypeNames.Application.Json)
};
message.Headers.TryAddWithoutValidation("token", token);
try
{
using var innerResponse2 = await Send(message, true, info, cancellationToken).ConfigureAwait(false);
await using var response = await innerResponse2.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
return await JsonSerializer.DeserializeAsync<IReadOnlyList<ShowImagesDto>>(response, _jsonOptions, cancellationToken).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error getting image info from schedules direct");
return Array.Empty<ShowImagesDto>();
}
}
public async Task<List<NameIdPair>> GetHeadends(ListingsProviderInfo info, string country, string location, CancellationToken cancellationToken)
{
var token = await GetToken(info, cancellationToken).ConfigureAwait(false);
var lineups = new List<NameIdPair>();
if (string.IsNullOrWhiteSpace(token))
{
return lineups;
}
using var options = new HttpRequestMessage(HttpMethod.Get, ApiUrl + "/headends?country=" + country + "&postalcode=" + location);
options.Headers.TryAddWithoutValidation("token", token);
try
{
using var httpResponse = await Send(options, false, info, cancellationToken).ConfigureAwait(false);
await using var response = await httpResponse.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
var root = await JsonSerializer.DeserializeAsync<IReadOnlyList<HeadendsDto>>(response, _jsonOptions, cancellationToken).ConfigureAwait(false);
if (root is not null)
{
foreach (HeadendsDto headend in root)
{
foreach (LineupDto lineup in headend.Lineups)
{
lineups.Add(new NameIdPair
{
Name = string.IsNullOrWhiteSpace(lineup.Name) ? lineup.Lineup : lineup.Name,
Id = lineup.Uri?[18..]
});
}
}
}
else
{
_logger.LogInformation("No lineups available");
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Error getting headends");
}
return lineups;
}
private async Task<string> GetToken(ListingsProviderInfo info, CancellationToken cancellationToken)
{
var username = info.Username;
// Reset the token if there's no username
if (string.IsNullOrWhiteSpace(username))
{
return null;
}
var password = info.Password;
if (string.IsNullOrEmpty(password))
{
return null;
}
// Avoid hammering SD
if ((DateTime.UtcNow - _lastErrorResponse).TotalMinutes < 1)
{
return null;
}
if (!_tokens.TryGetValue(username, out NameValuePair savedToken))
{
savedToken = new NameValuePair();
_tokens.TryAdd(username, savedToken);
}
if (!string.IsNullOrEmpty(savedToken.Name) && !string.IsNullOrEmpty(savedToken.Value))
{
if (long.TryParse(savedToken.Value, NumberStyles.Any, CultureInfo.InvariantCulture, out long ticks))
{
// If it's under 24 hours old we can still use it
if (DateTime.UtcNow.Ticks - ticks < TimeSpan.FromHours(20).Ticks)
{
return savedToken.Name;
}
}
}
await _tokenSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
var result = await GetTokenInternal(username, password, cancellationToken).ConfigureAwait(false);
savedToken.Name = result;
savedToken.Value = DateTime.UtcNow.Ticks.ToString(CultureInfo.InvariantCulture);
return result;
}
catch (HttpRequestException ex)
{
if (ex.StatusCode.HasValue && ex.StatusCode.Value == HttpStatusCode.BadRequest)
{
_tokens.Clear();
_lastErrorResponse = DateTime.UtcNow;
}
throw;
}
finally
{
_tokenSemaphore.Release();
}
}
private async Task<HttpResponseMessage> Send(
HttpRequestMessage options,
bool enableRetry,
ListingsProviderInfo providerInfo,
CancellationToken cancellationToken,
HttpCompletionOption completionOption = HttpCompletionOption.ResponseContentRead)
9 years ago
{
var response = await _httpClientFactory.CreateClient(NamedClient.Default)
.SendAsync(options, completionOption, cancellationToken).ConfigureAwait(false);
if (response.IsSuccessStatusCode)
9 years ago
{
return response;
}
// Response is automatically disposed in the calling function,
// so dispose manually if not returning.
response.Dispose();
if (!enableRetry || (int)response.StatusCode >= 500)
{
throw new HttpRequestException(
string.Format(CultureInfo.InvariantCulture, "Request failed: {0}", response.ReasonPhrase),
null,
response.StatusCode);
}
_tokens.Clear();
options.Headers.TryAddWithoutValidation("token", await GetToken(providerInfo, cancellationToken).ConfigureAwait(false));
return await Send(options, false, providerInfo, cancellationToken).ConfigureAwait(false);
9 years ago
}
private async Task<string> GetTokenInternal(
string username,
string password,
CancellationToken cancellationToken)
{
using var options = new HttpRequestMessage(HttpMethod.Post, ApiUrl + "/token");
#pragma warning disable CA5350 // SchedulesDirect is always SHA1.
var hashedPasswordBytes = SHA1.HashData(Encoding.ASCII.GetBytes(password));
#pragma warning restore CA5350
// TODO: remove ToLower when Convert.ToHexString supports lowercase
// Schedules Direct requires the hex to be lowercase
string hashedPassword = Convert.ToHexString(hashedPasswordBytes).ToLowerInvariant();
options.Content = new StringContent("{\"username\":\"" + username + "\",\"password\":\"" + hashedPassword + "\"}", Encoding.UTF8, MediaTypeNames.Application.Json);
using var response = await Send(options, false, null, cancellationToken).ConfigureAwait(false);
response.EnsureSuccessStatusCode();
await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
var root = await JsonSerializer.DeserializeAsync<TokenDto>(stream, _jsonOptions, cancellationToken).ConfigureAwait(false);
if (string.Equals(root?.Message, "OK", StringComparison.Ordinal))
{
_logger.LogInformation("Authenticated with Schedules Direct token: {Token}", root.Token);
return root.Token;
}
throw new AuthenticationException("Could not authenticate with Schedules Direct Error: " + root.Message);
}
private async Task AddLineupToAccount(ListingsProviderInfo info, CancellationToken cancellationToken)
{
var token = await GetToken(info, cancellationToken).ConfigureAwait(false);
ArgumentException.ThrowIfNullOrEmpty(token);
ArgumentException.ThrowIfNullOrEmpty(info.ListingsId);
_logger.LogInformation("Adding new LineUp ");
using var options = new HttpRequestMessage(HttpMethod.Put, ApiUrl + "/lineups/" + info.ListingsId);
options.Headers.TryAddWithoutValidation("token", token);
using var response = await _httpClientFactory.CreateClient(NamedClient.Default).SendAsync(options, HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
}
9 years ago
private async Task<bool> HasLineup(ListingsProviderInfo info, CancellationToken cancellationToken)
{
ArgumentException.ThrowIfNullOrEmpty(info.ListingsId);
var token = await GetToken(info, cancellationToken).ConfigureAwait(false);
9 years ago
ArgumentException.ThrowIfNullOrEmpty(token);
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_logger.LogInformation("Headends on account ");
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using var options = new HttpRequestMessage(HttpMethod.Get, ApiUrl + "/lineups");
options.Headers.TryAddWithoutValidation("token", token);
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try
{
using var httpResponse = await Send(options, false, null, cancellationToken).ConfigureAwait(false);
httpResponse.EnsureSuccessStatusCode();
await using var stream = await httpResponse.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
using var response = httpResponse.Content;
var root = await JsonSerializer.DeserializeAsync<LineupsDto>(stream, _jsonOptions, cancellationToken).ConfigureAwait(false);
return root?.Lineups.Any(i => string.Equals(info.ListingsId, i.Lineup, StringComparison.OrdinalIgnoreCase)) ?? false;
}
catch (HttpRequestException ex)
9 years ago
{
// SchedulesDirect returns 400 if no lineups are configured.
if (ex.StatusCode is HttpStatusCode.BadRequest)
{
return false;
}
9 years ago
throw;
9 years ago
}
}
public async Task Validate(ListingsProviderInfo info, bool validateLogin, bool validateListings)
9 years ago
{
if (validateLogin)
{
ArgumentException.ThrowIfNullOrEmpty(info.Username);
ArgumentException.ThrowIfNullOrEmpty(info.Password);
}
if (validateListings)
{
ArgumentException.ThrowIfNullOrEmpty(info.ListingsId);
var hasLineup = await HasLineup(info, CancellationToken.None).ConfigureAwait(false);
9 years ago
if (!hasLineup)
{
await AddLineupToAccount(info, CancellationToken.None).ConfigureAwait(false);
}
9 years ago
}
}
public Task<List<NameIdPair>> GetLineups(ListingsProviderInfo info, string country, string location)
{
return GetHeadends(info, country, location, CancellationToken.None);
}
public async Task<List<ChannelInfo>> GetChannels(ListingsProviderInfo info, CancellationToken cancellationToken)
{
var listingsId = info.ListingsId;
ArgumentException.ThrowIfNullOrEmpty(listingsId);
var token = await GetToken(info, cancellationToken).ConfigureAwait(false);
ArgumentException.ThrowIfNullOrEmpty(token);
using var options = new HttpRequestMessage(HttpMethod.Get, ApiUrl + "/lineups/" + listingsId);
options.Headers.TryAddWithoutValidation("token", token);
using var httpResponse = await Send(options, true, info, cancellationToken).ConfigureAwait(false);
await using var stream = await httpResponse.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
var root = await JsonSerializer.DeserializeAsync<ChannelDto>(stream, _jsonOptions, cancellationToken).ConfigureAwait(false);
if (root is null)
{
return new List<ChannelInfo>();
}
_logger.LogInformation("Found {ChannelCount} channels on the lineup on ScheduleDirect", root.Map.Count);
_logger.LogInformation("Mapping Stations to Channel");
var allStations = root.Stations;
var map = root.Map;
var list = new List<ChannelInfo>(map.Count);
foreach (var channel in map)
{
var channelNumber = GetChannelNumber(channel);
var stationIndex = allStations.FindIndex(item => string.Equals(item.StationId, channel.StationId, StringComparison.OrdinalIgnoreCase));
var station = stationIndex == -1
? new StationDto { StationId = channel.StationId }
: allStations[stationIndex];
4 years ago
var channelInfo = new ChannelInfo
{
Id = station.StationId,
CallSign = station.Callsign,
4 years ago
Number = channelNumber,
Name = string.IsNullOrWhiteSpace(station.Name) ? channelNumber : station.Name
4 years ago
};
if (station.Logo is not null)
{
channelInfo.ImageUrl = station.Logo.Url;
}
list.Add(channelInfo);
}
return list;
}
/// <inheritdoc />
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// <summary>
/// Releases unmanaged and optionally managed resources.
/// </summary>
/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
if (disposing)
{
_tokenSemaphore?.Dispose();
}
_disposed = true;
}
}
}