public virtual async Task <AppState> RevertLastBlock(string predecessor)
{
Logger.LogDebug("Begin DB transaction");
using var tx = await Db.Database.BeginTransactionAsync();
try
{
Logger.LogDebug("Revert quotes");
await Quotes.Revert();
Logger.LogDebug("Revert post-changes");
await BeforeRevert();
var state = Cache.AppState.Get();
Db.TryAttach(state);
if (state.Protocol != state.NextProtocol)
{
Logger.LogDebug("Deactivate latest protocol");
var nextProtocol = Services.GetProtocolHandler(state.Level + 1, state.NextProtocol);
await nextProtocol.Deactivate(state);
}
Logger.LogDebug("Revert block");
await Revert();
Logger.LogDebug("Touch accounts");
ClearAccounts(state.Level + 1);
if (Config.Diagnostics && state.Hash == predecessor)
{
Logger.LogDebug("Diagnostics");
await Diagnostics.Run(state.Level);
}
Logger.LogDebug("Save changes");
await Db.SaveChangesAsync();
Logger.LogDebug("Commit DB transaction");
await tx.CommitAsync();
}
catch (Exception)
{
await tx.RollbackAsync();
throw;
}
ClearCachedRelations();
return(Cache.AppState.Get());
}