/// <summary>
/// Extracts the Episode detail information (e.g. Title)
/// </summary>
public async Task <bool> GetEpisodeDetail()
{
if (this.VodId == null)
{
log.LogError("GetEpisodeDetail - VodId IS NOT SET - cannot retrieve episode details");
return(false);
}
var detail = await NhkApi.GetEpisode(this.VodId, log);
if (detail != null)
{
this.Title = (string)detail["title_clean"];
this.Plot = (string)detail["description_clean"];
this.PgmNo = (string)detail["pgm_no"];
this.OnAir = (string)detail["onair"];
this.Duration = (string)detail["movie_duration"];
return(true);
}
else
{
// Episode lookup does not work for all Playlist episodes
// Set a dummy Title
this.Title = "From Playlist";
this.PgmNo = "0";
this.Duration = "0";
return(true);
}
}
/// <summary>
/// Gets all the program details from NHK
/// </summary>
public async Task <bool> GetFromNHK()
{
bool success = false;
this.ProgramUuid = await NhkApi.GetProgramUuid(this.VodId, log);
if (this.ProgramUuid != null)
{
if (await GetAsset())
{
if (await GetEpisodeDetail())
{
success = true;
}
}
}
return(success);
}
/// <summary>
/// Get all the assets (video) information (e.g. PlayPath)
/// </summary>
public async Task <bool> GetAsset()
{
if (this.ProgramUuid == null)
{
log.LogError("ProgramUuid IS NOT SET - cannot retrieve ReferenceFile");
return(false);
}
var asset = await NhkApi.GetAsset(this.ProgramUuid, log);
if (asset != null)
{
var referenceFile = (JObject)asset["referenceFile"];
var assetFiles = (JArray)asset["assetFiles"];
// Collect all the information to create an M3U8 file
var bitrate = String.Empty;
var aspect = String.Empty;
var width = String.Empty;
var height = String.Empty;
var playPath = String.Empty;
var hasReferenceFile = false;
// Get the reference file (HD)
playPath = (string)referenceFile["rtmp"]["play_path"];
playPath = playPath.Split('?')[0];
// Check if reference file actually exists (sometimes it doesn't)
var reference_url = String.Format("https://nhkw-mzvod.akamaized.net/www60/mz-nhk10/_definst_/{0}/chunklist.m3u8", playPath);
var response = await AkamaiHttpClient.GetAsync(reference_url);
if (response.IsSuccessStatusCode)
{
// Exists, add it and use the metadata
bitrate = (string)referenceFile["videoBitrate"];
aspect = (string)referenceFile["aspectRatio"];
width = (string)referenceFile["videoWidth"];
height = (string)referenceFile["videoHeight"];
this.Path1080P = reference_url;
hasReferenceFile = true;
}
// Get the 720P Version
var asset720p = assetFiles[0];
playPath = (string)asset720p["rtmp"]["play_path"];
playPath = playPath.Split('?')[0];
this.Path720P = String.Format("https://nhkw-mzvod.akamaized.net/www60/mz-nhk10/_definst_/{0}/chunklist.m3u8", playPath);
// If we do not have a reference file
// use the video information from 720P
if (!hasReferenceFile)
{
bitrate = (string)asset720p["videoBitrate"];
aspect = (string)asset720p["aspectRatio"];
width = (string)asset720p["videoWidth"];
height = (string)asset720p["videoHeight"];
hasReferenceFile = false;
}
this.Aspect = aspect;
this.Width = width;
this.Height = height;
this.HasReferenceFile = hasReferenceFile;
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Populates CosmosDB with the latest list of programs
/// </summary>
/// <returns>Number of items written to CosmosDB</returns>
public static async Task <bool> PopulateCloudCache(ILogger log)
{
var episodes = await NhkApi.GetVodIdList(log);
// Get the existing entries from CosmosDB
var sqlQueryText = "SELECT c.id FROM c";
QueryDefinition queryDefinition = new QueryDefinition(sqlQueryText);
FeedIterator <VodProgram> queryResultSetIterator = Database.VodProgram.GetItemQueryIterator <VodProgram>(queryDefinition);
var dbEpisodes = new List <VodProgram>();
int insertCounter = 0;
int deleteCounter = 0;
bool success = false;
while (queryResultSetIterator.HasMoreResults)
{
FeedResponse <VodProgram> currentResultSet = await queryResultSetIterator.ReadNextAsync();
dbEpisodes.AddRange(currentResultSet);
}
var dbVodIds = from p in dbEpisodes
select p.VodId;
// Update CosmosDB with new entries
foreach (var vodId in episodes)
{
// Check if vodId is already in CosmosDB
if (!dbVodIds.Contains(vodId))
{
// No, create it it!
success = false;
var program = new VodProgram(vodId, log);
success = await program.Get();
if (success)
{
insertCounter++;
}
}
}
// Delete stale DB Entries
foreach (var vodId in dbVodIds)
{
// Check if vodId no longer exists in NHK episode list
if (!episodes.Contains(vodId))
{
// It doesn't exist, delete it
success = false;
var program = new VodProgram(vodId, log);
success = await program.Delete();
if (success)
{
deleteCounter++;
}
}
}
log.LogInformation(String.Format("Inserted {0} - deleted {1} episodes from CosmosDB", insertCounter, deleteCounter));
return(true);
}
