#include "externals.hh"
#include "syncedit.hh"
#include "globals.hh"


/*= T_UndoSyncChanges ==========================================================*/

void T_UndoSyncChanges::undo( ) const noexcept
{
	auto& sync{ Globals::Sync( ) };
	const auto n{ changes_.size( ) };
	for ( auto i = 0u ; i < n ; i ++ ) {
		auto const& c( changes_[ i ] );
		if ( c.before ) {
			sync.setCurve( *c.before );
		} else {
			sync.removeCurve( c.inputId );
		}
	}
}

void T_UndoSyncChanges::redo( ) const noexcept
{
	auto& sync{ Globals::Sync( ) };
	const auto n{ changes_.size( ) };
	for ( auto i = 0u ; i < n ; i ++ ) {
		auto const& c( changes_[ i ] );
		if ( c.after ) {
			sync.setCurve( *c.after );
		} else {
			sync.removeCurve( c.inputId );
		}
	}
}

/*------------------------------------------------------------------------------*/

T_UndoSyncChanges& T_UndoSyncChanges::curveCreation(
		T_SyncCurve curve ) noexcept
{
#ifndef NDEBUG
	{
		const auto n{ changes_.size( ) };
		for ( auto i = 0u ; i < n ; i ++ ) {
			assert( changes_[ i ].inputId != curve.name );
		}
	}
#endif
	changes_.addNew( true , std::move( curve ) );
	return *this;
}

T_UndoSyncChanges& T_UndoSyncChanges::curveDeletion(
		T_SyncCurve curve ) noexcept
{
#ifndef NDEBUG
	{
		const auto n{ changes_.size( ) };
		for ( auto i = 0u ; i < n ; i ++ ) {
			assert( changes_[ i ].inputId != curve.name );
		}
	}
#endif
	changes_.addNew( std::move( curve ) );
	return *this;
}

T_UndoSyncChanges& T_UndoSyncChanges::curveReplacement(
		T_SyncCurve before ,
		T_SyncCurve after ) noexcept
{
	assert( before.name == after.name );
#ifndef NDEBUG
	{
		const auto n{ changes_.size( ) };
		for ( auto i = 0u ; i < n ; i ++ ) {
			assert( changes_[ i ].inputId != before.name );
		}
	}
#endif
	changes_.addNew( std::move( before ) , std::move( after ) );
	return *this;
}