void AddBookToUpdateQueue(BookElementEx bex, Book.ScrapeSet scrapedSet)
{
StreamWriter sw = new StreamWriter(m_config.SqlFile, true /*fAppend*/, System.Text.Encoding.Default);
sw.WriteLine(BuildSetString(bex, null, scrapedSet));
sw.Close();
}
void LogBookUpdateError(BookElementEx bex, Book.ScrapeSet scrapedSet, string sReason)
{
StreamWriter swSql = new StreamWriter(m_config.SqlFile, true /*fAppend*/, System.Text.Encoding.Default);
StreamWriter swLog = new StreamWriter(m_config.LogFile, true /*fAppend*/, System.Text.Encoding.Default);
swLog.WriteLine($"{bex.ScanCode}: {bex.Title}: FAILED: {sReason}");
swLog.Close();
swSql.WriteLine(BuildSetString(bex, " -- FAILED QUERY!", scrapedSet));
swSql.Close();
}
// 0 1 2 3 4 5 6 7 8 9
public void DoUpdate(string sConnectionString)
{
// get the set of books that we want to update
TCore.Sql sql;
SqlSelect sqls = new SqlSelect(s_sBaseQuery, s_mpAliases);
SqlWhere swInnerJoin = new SqlWhere();
swInnerJoin.Add("$$upc_books$$.ScanCode = $$upc_codes$$.ScanCode", SqlWhere.Op.And);
sqls.AddInnerJoin(new SqlInnerJoin("$$#upc_codes$$", swInnerJoin));
UpdateStatus flagsToUpdate = UpdateStatus.Author | UpdateStatus.Series | UpdateStatus.ReleaseDate | UpdateStatus.CoverSrc;
if (m_config.ForceUpdateSummary)
{
flagsToUpdate |= UpdateStatus.Summary;
}
// we want to match any entry that hasn't tried to update ALL of our fields. (if they have tried some,
// but not others, then try again. after all, we might know more fields now that we want to update.
sqls.Where.Add($"$$upc_books$$.UpdateStatus & {(int)flagsToUpdate} <> {(int)flagsToUpdate}", SqlWhere.Op.And);
sqls.Where.StartGroup(SqlWhere.Op.And);
sqls.Where.Add(String.Format("$$upc_books$$.LastUpdate < '{0}'", DateTime.Now.ToString("d")), SqlWhere.Op.And);
sqls.Where.Add("$$upc_books$$.LastUpdate IS NULL", SqlWhere.Op.Or);
sqls.Where.EndGroup();
// s.Where.Add($"$$upc_books$$.ScanCode = '9780312853952'", SqlWhere.Op.And);
// and lets update the latest scanned items first
sqls.AddOrderBy("$$upc_codes$$.LastScanDate DESC");
SR sr = Sql.OpenConnection(out sql, sConnectionString);
if (!sr.Succeeded)
{
throw new Exception(sr.Reason);
}
// from this point on, we have to release the sql connection!!
int cFailed = 0;
try
{
sr = Sql.ExecuteQuery(sql, sqls.ToString(), this, null);
if (!sr.Succeeded)
{
throw new Exception(sr.Reason);
}
foreach (BookElementEx bex in m_plBooks)
{
string sError;
Console.WriteLine($"Trying to scrape book {bex.ScanCode}: {bex.Title}...");
Book.ScrapeSet scrapedSet = 0;
if (m_config.ForceUpdateSummary)
{
bex.Summary = null;
}
if (Book.FScrapeBookSet(bex, out scrapedSet, out sError))
{
// we might not have scraped everything, but we scraped something...
if (scrapedSet.HasFlag(Book.ScrapeSet.CoverSrc) && !DownloadCoverForBook(bex, m_config.LocalCoverRoot, "covers", out sError))
{
Console.WriteLine($"FAILED: to download cover art: {sError}");
LogBookUpdateError(bex, scrapedSet, sError);
}
else
{
Console.WriteLine(
$"SUCCEEDED: Author: {bex.Author}, ReleaseDate: {bex.ReleaseDate}, Series: {bex.Series}");
AddBookToUpdateQueue(bex, scrapedSet);
}
}
else
{
Console.WriteLine($"FAILED: {sError}");
LogBookUpdateError(bex, scrapedSet, sError);
cFailed++;
if (cFailed > 150)
{
throw new Exception("giving up");
}
}
}
}
finally
{
sql.Close();
}
}
string BuildSetString(BookElementEx bex, string sComment, Book.ScrapeSet set)
{
List <string> plsSet = new List <string>();
UpdateStatus status = (UpdateStatus)bex.UpdateStatus;
plsSet.Add(String.Format(" LastUpdate='{0}' ", DateTime.Now.ToString("d")));
if (!String.IsNullOrEmpty(bex.ReleaseDate) && set.HasFlag(Book.ScrapeSet.ReleaseDate))
{
DateTime dttm = DateTime.Parse(bex.ReleaseDate);
plsSet.Add(String.Format(" ReleaseDate='{0}' ", dttm.ToString("yyyy/MM/dd")));
status |= UpdateStatus.ReleaseDate;
}
if (!String.IsNullOrEmpty(bex.Author) && set.HasFlag(Book.ScrapeSet.Author))
{
plsSet.Add($" Author='{Sql.Sqlify(bex.Author)}' ");
status |= UpdateStatus.Author;
}
if (!String.IsNullOrEmpty(bex.RawCoverUrl) && set.HasFlag(Book.ScrapeSet.CoverSrc))
{
plsSet.Add($" CoverSrc='{Sql.Sqlify(bex.RawCoverUrl)}' ");
status |= UpdateStatus.CoverSrc;
}
if (!String.IsNullOrEmpty(bex.Series) && set.HasFlag(Book.ScrapeSet.Series))
{
plsSet.Add($" Series='{Sql.Sqlify(bex.Series)}' ");
status |= UpdateStatus.Series;
}
if (!String.IsNullOrEmpty(bex.Summary) && set.HasFlag(Book.ScrapeSet.Summary))
{
string s = Sql.Sqlify(bex.Summary);
s = s.Replace("\n", "' + CHAR(13) + CHAR(10) + '");
plsSet.Add($" Summary='{s}' ");
status |= UpdateStatus.Summary;
}
StringBuilder sb = new StringBuilder(256);
sb.Append($"UPDATE upc_Books SET UpdateStatus={(int)status} ");
foreach (string s in plsSet)
{
sb.Append(", ");
sb.Append(s);
}
sb.Append($"WHERE ID='{bex.BookID}'");
if (!String.IsNullOrEmpty(sComment))
{
sb.Append(sComment);
}
return(sb.ToString());
}