private static int?UpdateInfo(int progid, string episodeExtId)
{
Guid pluginId;
string progExtId;
Provider.ProgrammeInfo progInfo;
using (SQLiteCommand command = new SQLiteCommand("select pluginid, extid, name, description, singleepisode from programmes where progid=@progid", FetchDbConn()))
{
command.Parameters.Add(new SQLiteParameter("@progid", progid));
using (SQLiteMonDataReader reader = new SQLiteMonDataReader(command.ExecuteReader()))
{
if (!reader.Read())
{
throw new DataNotFoundException(progid, "Programme does not exist");
}
pluginId = new Guid(reader.GetString(reader.GetOrdinal("pluginid")));
progExtId = reader.GetString(reader.GetOrdinal("extid"));
progInfo = new Provider.ProgrammeInfo();
progInfo.Name = reader.GetString(reader.GetOrdinal("name"));
int descriptionOrdinal = reader.GetOrdinal("description");
if (!reader.IsDBNull(descriptionOrdinal))
{
progInfo.Description = reader.GetString(descriptionOrdinal);
}
progInfo.SingleEpisode = reader.GetBoolean(reader.GetOrdinal("singleepisode"));
}
}
Provider.RadioProvider providerInst = Provider.Handler.GetFromId(pluginId).CreateInstance();
Provider.EpisodeInfo episodeInfo;
try
{
episodeInfo = providerInst.GetEpisodeInfo(progExtId, progInfo, episodeExtId);
if (episodeInfo == null)
{
return(null);
}
if (string.IsNullOrEmpty(episodeInfo.Name))
{
throw new InvalidDataException("Episode name cannot be null or an empty string");
}
}
catch (Exception provExp)
{
provExp.Data.Add("Programme", progInfo.ToString() + "\r\nExtID: " + progExtId);
provExp.Data.Add("Episode ExtID", episodeExtId);
throw new ProviderException("Call to GetEpisodeInfo failed", provExp, pluginId);
}
if (episodeInfo.Date == null)
{
// The date of the episode isn't known, so use the current date
episodeInfo.Date = DateTime.Now;
}
lock (DbUpdateLock)
{
using (SQLiteMonTransaction transMon = new SQLiteMonTransaction(FetchDbConn().BeginTransaction()))
{
int?epid = null;
using (SQLiteCommand command = new SQLiteCommand("select epid from episodes where progid=@progid and extid=@extid", FetchDbConn(), transMon.Trans))
{
command.Parameters.Add(new SQLiteParameter("@progid", progid));
command.Parameters.Add(new SQLiteParameter("@extid", episodeExtId));
using (SQLiteMonDataReader reader = new SQLiteMonDataReader(command.ExecuteReader()))
{
if (reader.Read())
{
epid = reader.GetInt32(reader.GetOrdinal("epid"));
}
}
}
if (epid == null)
{
using (SQLiteCommand command = new SQLiteCommand("insert into episodes (progid, extid, name, date) values (@progid, @extid, @name, @date)", FetchDbConn(), transMon.Trans))
{
command.Parameters.Add(new SQLiteParameter("@progid", progid));
command.Parameters.Add(new SQLiteParameter("@extid", episodeExtId));
command.Parameters.Add(new SQLiteParameter("@name", episodeInfo.Name));
command.Parameters.Add(new SQLiteParameter("@date", episodeInfo.Date));
command.ExecuteNonQuery();
}
using (SQLiteCommand command = new SQLiteCommand("select last_insert_rowid()", FetchDbConn(), transMon.Trans))
{
epid = (int)(long)command.ExecuteScalar();
}
}
using (SQLiteCommand command = new SQLiteCommand("update episodes set name=@name, description=@description, duration=@duration, date=@date, image=@image, available=1 where epid=@epid", FetchDbConn(), transMon.Trans))
{
command.Parameters.Add(new SQLiteParameter("@name", episodeInfo.Name));
command.Parameters.Add(new SQLiteParameter("@description", episodeInfo.Description));
command.Parameters.Add(new SQLiteParameter("@duration", episodeInfo.Duration));
command.Parameters.Add(new SQLiteParameter("@date", episodeInfo.Date));
command.Parameters.Add(new SQLiteParameter("@image", StoreImage(episodeInfo.Image)));
command.Parameters.Add(new SQLiteParameter("@epid", epid));
command.ExecuteNonQuery();
}
using (SQLiteCommand command = new SQLiteCommand("insert or replace into episodeext (epid, name, value) values (@epid, @name, @value)", FetchDbConn(), transMon.Trans))
{
foreach (KeyValuePair <string, string> extItem in episodeInfo.ExtInfo)
{
command.Parameters.Add(new SQLiteParameter("@epid", epid));
command.Parameters.Add(new SQLiteParameter("@name", extItem.Key));
command.Parameters.Add(new SQLiteParameter("@value", extItem.Value));
command.ExecuteNonQuery();
}
}
transMon.Trans.Commit();
return(epid);
}
}
}
public static List <string> GetAvailableEpisodes(int progid, bool fetchAll)
{
Guid providerId;
string progExtId;
Provider.ProgrammeInfo progInfo;
using (SQLiteCommand command = new SQLiteCommand("select pluginid, extid, name, description, singleepisode from programmes where progid=@progid", FetchDbConn()))
{
command.Parameters.Add(new SQLiteParameter("@progid", progid));
using (SQLiteMonDataReader reader = new SQLiteMonDataReader(command.ExecuteReader()))
{
if (!reader.Read())
{
throw new DataNotFoundException(progid, "Programme does not exist");
}
providerId = new Guid(reader.GetString(reader.GetOrdinal("pluginid")));
progExtId = reader.GetString(reader.GetOrdinal("extid"));
progInfo = new Provider.ProgrammeInfo();
progInfo.Name = reader.GetString(reader.GetOrdinal("name"));
int descriptionOrdinal = reader.GetOrdinal("description");
if (!reader.IsDBNull(descriptionOrdinal))
{
progInfo.Description = reader.GetString(descriptionOrdinal);
}
progInfo.SingleEpisode = reader.GetBoolean(reader.GetOrdinal("singleepisode"));
}
}
if (!Provider.Handler.Exists(providerId))
{
return(null);
}
// Fetch a list of previously available episodes for the programme
List <string> previousAvailable = new List <string>();
using (SQLiteCommand command = new SQLiteCommand("select extid from episodes where progid=@progid and available=1 order by date desc", FetchDbConn()))
{
command.Parameters.Add(new SQLiteParameter("@progid", progid));
using (SQLiteMonDataReader reader = new SQLiteMonDataReader(command.ExecuteReader()))
{
int epidOrdinal = reader.GetOrdinal("extid");
while (reader.Read())
{
previousAvailable.Add(reader.GetString(epidOrdinal));
}
}
}
List <string> allEpExtIds = new List <string>();
int page = 1;
Provider.RadioProvider providerInst = Provider.Handler.GetFromId(providerId).CreateInstance();
Provider.AvailableEpisodes available;
do
{
try
{
available = providerInst.GetAvailableEpisodes(progExtId, progInfo, page);
}
catch (Exception provExp)
{
provExp.Data.Add("Programme ExtID", progExtId);
throw new ProviderException("Call to GetAvailableEpisodeIds failed", provExp, providerId);
}
if (available.EpisodeIds.Count == 0)
{
break;
}
int trackOverlap = -1;
foreach (string epExtId in available.EpisodeIds)
{
// Append the returned IDs to the list of all episodes (minus duplicates)
if (!allEpExtIds.Contains(epExtId))
{
allEpExtIds.Add(epExtId);
}
if (previousAvailable.Contains(epExtId))
{
// Store where the available & previously available ID lists overlap
trackOverlap = previousAvailable.IndexOf(epExtId);
}
else if (trackOverlap >= 0)
{
// Bump up the overlap index to show there are more after the overlap
trackOverlap++;
}
}
if (available.MoreAvailable && !fetchAll)
{
if (trackOverlap >= 0)
{
// Remove previously available programmes before this page from the list so that they
// are not incorrectly un-flagged as available in the database
if (trackOverlap < previousAvailable.Count - 1)
{
previousAvailable.RemoveRange(trackOverlap + 1, previousAvailable.Count - (trackOverlap + 1));
}
// Stop fetching available episode pages
break;
}
}
page++;
}while (available.MoreAvailable);
// Remove the still available episodes from the previously available list
foreach (string epExtId in allEpExtIds)
{
previousAvailable.Remove(epExtId);
}
// Unflag any no-longer available episodes in the database
if (previousAvailable.Count > 0)
{
lock (DbUpdateLock)
{
using (SQLiteMonTransaction transMon = new SQLiteMonTransaction(FetchDbConn().BeginTransaction()))
{
using (SQLiteCommand command = new SQLiteCommand("update episodes set available=0 where progid=@progid and extid=@extid", FetchDbConn(), transMon.Trans))
{
SQLiteParameter extidParam = new SQLiteParameter("@extid");
command.Parameters.Add(new SQLiteParameter("@progid", progid));
command.Parameters.Add(extidParam);
foreach (string epExtId in previousAvailable)
{
extidParam.Value = epExtId;
command.ExecuteNonQuery();
}
}
transMon.Trans.Commit();
}
}
}
return(allEpExtIds);
}
