/*
 * This file is a part of Winix
 * and is distributed under the 2-Clause BSD licence.
 * Author: Tomasz Sowa <t.sowa@ttmath.org>
 */

/* 
 * Copyright (c) 2010-2021, Tomasz Sowa
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 */
 
#include "models/item.h"
#include "finder.h"


namespace Winix
{




Item::Item()
{
	Clear();
}



void Item::map_fields()
{
	int type_helper = static_cast<int>(type);

	field(L"id",         id, false, false, true);
	field(L"parent_id",  parent_id);
	field(L"type",		 type_helper);
	field(L"url",		 url);
	field(L"subject",    subject);
	field(L"template",   html_template);
	field(L"sort_index", sort_index);
	//field(L"content_id", content_id);
	field(L"content_id", item_content, true, true, true);

	// may we should add a method setTypeFromInt(int t)?
	type = static_cast<Type>(type_helper);
}


void Item::table_name(PT::TextStream & stream)
{
	stream << "core.item";
}


void Item::before_insert()
{
	// IMPROVEME if prepare_status is false then update the 'url' with the 'id'
	// add a method: update_url()
	url_was_prepared_correctly = prepare_url();
}


void Item::after_insert()
{
	get_last_sequence(L"core.item_id_seq", id);

	if( !url_was_prepared_correctly )
	{
		// update_url();
		// what about an error from update_url()?
	}
}


bool Item::update(morm::ModelData * model_data, bool url_was_changed, bool update_whole_tree)
{
	bool prepare_url_status = true;

	if( url_was_changed )
	{
		prepare_url_status = prepare_url();
	}

	bool update_status = morm::Model::update(model_data, update_whole_tree);

	if( update_status )
	{
		if( !prepare_url_status )
		{
			// IMPROVEME add update_url() method
			// set 'url' to the same value as 'id'
			//update_status = update_url();
		}
	}

	return update_status;
}


bool Item::update(morm::ModelData & model_data, bool url_was_changed, bool update_whole_tree)
{
	return update(&model_data, url_was_changed, update_whole_tree);
}


bool Item::update(bool url_was_changed, bool update_whole_tree)
{
	return update(nullptr, url_was_changed, update_whole_tree);
}





void Item::Clear()
{
	id = -1;
	parent_id = -1;
	type = none;
	url.clear();
	subject.clear();
	html_template.clear();
	sort_index = 0;
	content_id = -1;
	item_content.Clear();

	// used only when inserting, not saved to the database
	url_was_prepared_correctly = true;
}


long Item::calc_items_by_url(long parent_id, const std::wstring & url)
{
	morm::Finder<CalcItemsHelper> finder(model_connector);

	CalcItemsHelper helper = finder.
		prepare_to_select().
		raw("select count(id) as size from core.item").
		where().
		eq(L"parent_id", parent_id).
		eq(L"url", url).
		get();

	return helper.size;
}



bool Item::prepare_url()
{
std::wstring temp_url;
bool is_that_url;
int index = 1;
const int max_index = 99;
wchar_t appendix[20];
size_t appendix_len = sizeof(appendix) / sizeof(wchar_t);

	appendix[0] = 0;

	// only root dir may not have the url
	if( parent_id != -1 && url.empty() )
		url = L"empty"; // IMPROVEME move me to locales

	do
	{
		temp_url = url;
		temp_url += appendix;

		long size = calc_items_by_url(parent_id, temp_url);

		if( size > 0 )
		{
			swprintf(appendix, appendix_len, L"_(%d)", ++index);
			is_that_url = true;
		}
		else
		{
			url = temp_url;
			is_that_url = false;
		}
	}
	while( is_that_url && index <= max_index );

return !is_that_url;
}



void Item::do_migration(morm::ModelConnector * model_connector)
{
	return;
	///////

	morm::Finder<Item> finder(model_connector);

	std::list<Item> list = finder.select().where().eq(L"type", static_cast<int>(Item::dir)).eq(L"content_id", -1).get_list();

	for(Item & item : list)
	{
		item.item_content.set_save_mode(morm::Model::DO_INSERT_ON_SAVE);
		item.save();
	}

}



} // namespace Winix