//--------------------------------------------------------Misc Methods:---------------------------------------------------------------\\
#region --Misc Methods (Public)--
/// <summary>
/// Gets called on App start and performs update task e.g. migrate the DB to a new format.
/// </summary>
public static async Task OnAppStartAsync()
{
// For debugging:
/*using (MainDbContext ctx = new MainDbContext())
* {
* if (ctx.Accounts.Count() <= 0)
* {
* await ctx.RecreateDb();
* }
* }*/
PackageVersion versionLastStart = GetLastStartedVersion();
// Check if version != 0.0.0.0 => first ever start of the App:
if (!(versionLastStart.Major == 0 && versionLastStart.Major == versionLastStart.Minor && versionLastStart.Minor == versionLastStart.Revision && versionLastStart.Revision == versionLastStart.Build) || Settings.GetSettingBoolean(SettingsConsts.INITIALLY_STARTED))
{
if (!Compare(versionLastStart, GetPackageVersion()))
{
if (versionLastStart.Major <= 0 && versionLastStart.Minor < 31)
{
try
{
Logger.Info("Started updating DB to version 0.31.0.0.");
Logger.Info("Clearing old application data...");
await ApplicationData.Current.ClearAsync();
Logger.Info("Old application data cleared.");
Logger.Info("Finished updating DB to version 0.31.0.0.");
}
catch (Exception e)
{
Logger.Error("Error during updating DB to version 0.31.0.0", e);
}
}
if (versionLastStart.Major <= 0 && versionLastStart.Minor < 38)
{
try
{
Logger.Info("Started updating DB to version 0.38.0.0.");
Logger.Info("Clearing old application data...");
await ApplicationData.Current.ClearAsync();
Logger.Info("Old application data cleared.");
Logger.Info("Finished updating DB to version 0.38.0.0.");
}
catch (Exception e)
{
Logger.Error("Error during updating DB to version 0.38.0.0", e);
}
}
if (versionLastStart.Major <= 0 && versionLastStart.Minor < 39)
{
try
{
Logger.Info("Started updating DB to version 0.39.0.0.");
Logger.Info("Resetting the DB...");
using (MainDbContext ctx = new MainDbContext())
{
await ctx.RecreateDb();
}
Logger.Info("DB reset.");
Logger.Info("Finished updating DB to version 0.39.0.0.");
}
catch (Exception e)
{
Logger.Error("Error during updating DB to version 0.39.0.0", e);
}
}
if (versionLastStart.Major <= 0 && versionLastStart.Minor < 41)
{
try
{
Logger.Info("Started updating DB to version 0.41.0.0.");
Logger.Info("Resetting the DB...");
using (MainDbContext ctx = new MainDbContext())
{
if (!ctx.ApplyMigration(new Migration_0_41_0_0()))
{
#if !DEBUG
Logger.Error("Since migration to the new DB failed for version 0.41.0.0, we are recreating the DB");
await ctx.RecreateDb();
#endif
}
}
Logger.Info("DB reset.");
}
catch (Exception e)
{
Logger.Error("Error during updating DB to version 0.41.0.0", e);
}
Logger.Info("Cleaning up old password vault entries...");
using (MainDbContext ctx = new MainDbContext())
{
Vault.CleanupVault(ctx.Accounts.Select(a => a.bareJid).ToList());
}
Logger.Info("Password vauled cleaned up.");
Logger.Info("Finished updating DB to version 0.41.0.0.");
}
}
}
SetVersion(GetPackageVersion());
}