/*
 * libosengine - A synchronization engine for the opensync framework
 * Copyright (C) 2004-2005  Armin Bauer <armin.bauer@opensync.org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 * 
 */
 
#include "opensync.h"
#include "opensync_internals.h"

#include "opensync-client.h"
#include "opensync-engine.h"
#include "opensync-group.h"
#include "opensync-format.h"
#include "opensync-data.h"

#include "opensync_engine_internals.h"
#include "opensync_engine_private.h" /* FIXME: Access private struct from OSyncEngine */

#include "opensync_mapping_engine_internals.h"

void osync_status_free_member_update(OSyncEngineMemberUpdate *update)
{
	osync_assert(update);
	
	if (update->objtype)
		osync_free(update->objtype);
	
	osync_member_unref(update->member);
	
	if (update->error)
		osync_error_unref(&update->error);
	
	osync_free(update);
}

void osync_status_free_engine_update(OSyncEngineUpdate *update)
{
	osync_assert(update);
	
	if (update->error)
		osync_error_unref(&update->error);
	
	osync_free(update);
}

void osync_status_free_change_update(OSyncEngineChangeUpdate *update)
{
	osync_assert(update);
	
	osync_member_unref(update->member);
	
	if (update->change)
		osync_change_unref(update->change);
	
	if (update->error)
		osync_error_unref(&update->error);
	
	osync_free(update);
}

void osync_status_free_mapping_update(OSyncEngineMappingUpdate *update)
{
	osync_assert(update);
	
	//osync_member_unref(update->member);
	
	if (update->error)
		osync_error_unref(&update->error);
	
	osync_free(update);
}

osync_bool osync_status_conflict(OSyncEngine *engine, OSyncMappingEngine *mapping_engine)
{
	osync_trace(TRACE_ENTRY, "%s(%p, %p)", __func__, engine, mapping_engine);

	osync_assert_msg(engine->conflict_callback, "No conflict handler registered! OpenSync frontend very likely broken!");
	osync_assert_msg(engine->conflict_callback, "Engine is already tainted with an error! Not going to call any conflict callback!");
	if (osync_engine_has_error(engine))
		goto error;

	engine->conflict_callback(engine, mapping_engine, engine->conflict_userdata);

	if (osync_engine_has_error(engine))
		goto error;
				
	osync_trace(TRACE_EXIT, "%s", __func__);
	return TRUE;

error:
	osync_trace(TRACE_EXIT_ERROR, "%s: Engine has an error. Sync got abortd?!", __func__);
	return FALSE;
}

void osync_status_multiply(OSyncEngine *engine)
{
	osync_trace(TRACE_ENTRY, "%s(%p)", __func__, engine);

	if (engine->multiply_callback)
		engine->multiply_callback(engine, engine->multiply_userdata);
				
	osync_trace(TRACE_EXIT, "%s", __func__);
}

void osync_status_update_member(OSyncEngine *engine, OSyncMember *member, OSyncEngineMemberEvent type, const char *objtype, OSyncError *error)
{
	osync_trace(TRACE_ENTRY, "%s(%p, %p, %i, %s, %p)", __func__, engine, member, type, objtype, error);
	
	if (engine->mebstat_callback) {
		OSyncError *internal_error = NULL;
		OSyncEngineMemberUpdate *update = osync_try_malloc0(sizeof(OSyncEngineMemberUpdate), &internal_error);
		if (!update) {
			osync_trace(TRACE_EXIT_ERROR, "%s: %s", __func__, osync_error_print(&internal_error));
			osync_error_unref(&internal_error);
			return;
		}
		
		update->type = type;
		
		update->member = member;
		osync_member_ref(member);
		
		update->error = error;
		osync_error_ref(&error);
		
		update->objtype = osync_strdup(objtype);
		
		engine->mebstat_callback(update, engine->mebstat_userdata);
		
		osync_status_free_member_update(update);
	} else
		osync_trace(TRACE_INTERNAL, "Status Update Ignored");
		
	osync_trace(TRACE_EXIT, "%s", __func__);
}

void osync_status_update_change(OSyncEngine *engine, OSyncChange *change, OSyncMember *member, OSyncMapping *mapping, OSyncEngineChangeEvent type, OSyncError *error)
{
	osync_trace(TRACE_ENTRY, "%s(%p, %p, %p, %p, %i, %p)", __func__, engine, change, member, mapping, type, error);
	
	if (engine->changestat_callback) {
		OSyncError *internal_error = NULL;
		OSyncEngineChangeUpdate *update = osync_try_malloc0(sizeof(OSyncEngineChangeUpdate), &internal_error);
		if (!update) {
			osync_trace(TRACE_EXIT_ERROR, "%s: %s", __func__, osync_error_print(&internal_error));
			osync_error_unref(&internal_error);
			return;
		}
		
		update->type = type;
		
		update->change = change;
		osync_change_ref(change);
		
		update->member = member;
		osync_member_ref(member);
		
		update->error = error;
		osync_error_ref(&error);
		
		engine->changestat_callback(update, engine->changestat_userdata);
		
		osync_status_free_change_update(update);
	} else
		osync_trace(TRACE_INTERNAL, "Status Update Ignored");
		
	osync_trace(TRACE_EXIT, "%s", __func__);
}

void osync_status_update_mapping(OSyncEngine *engine, OSyncMappingEngine *mapping, OSyncEngineMappingEvent type, OSyncError *error)
{
	osync_trace(TRACE_ENTRY, "%s(%p, %p, %i, %p)", __func__, engine, mapping, type, error);
	
	if (engine->mapstat_callback) {
		OSyncError *internal_error = NULL;
		OSyncEngineMappingUpdate *update = osync_try_malloc0(sizeof(OSyncEngineMappingUpdate), &internal_error);
		if (!update) {
			osync_trace(TRACE_EXIT_ERROR, "%s: %s", __func__, osync_error_print(&internal_error));
			osync_error_unref(&internal_error);
			return;
		}
		
		update->type = type;
		
		update->mapping = mapping->mapping;
		
		update->error = error;
		osync_error_ref(&error);
		
		engine->mapstat_callback(update, engine->mapstat_userdata);
		
		osync_status_free_mapping_update(update);
	} else
		osync_trace(TRACE_INTERNAL, "Status Update Ignored");
		
	osync_trace(TRACE_EXIT, "%s", __func__);
}

void osync_status_update_engine(OSyncEngine *engine, OSyncEngineEvent type, OSyncError *error)
{
	osync_trace(TRACE_ENTRY, "%s(%p, %i, %p)", __func__, engine, type, error);
	
	if (engine->engstat_callback) {
		OSyncError *internal_error = NULL;
		OSyncEngineUpdate *update = osync_try_malloc0(sizeof(OSyncEngineUpdate), &internal_error);
		if (!update) {
			osync_trace(TRACE_EXIT_ERROR, "%s: %s", __func__, osync_error_print(&internal_error));
			osync_error_unref(&internal_error);
			return;
		}
		
		update->type = type;
		
		update->error = error;
		osync_error_ref(&error);
		
		engine->engstat_callback(update, engine->engstat_userdata);
		
		osync_status_free_engine_update(update);
	} else
		osync_trace(TRACE_INTERNAL, "Status Update Ignored");
		
	osync_trace(TRACE_EXIT, "%s", __func__);
}