/*
 * 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 "core/misc.h"
#include "finder.h"


namespace Winix
{




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



void Item::map_fields()
{
	//ItemModelData * item_model_data = dynamic_cast<ItemModelData>(get_model_data());

	int type_helper = static_cast<int>(type);

	field(L"id",         id, morm::FT::no_insertable | morm::FT::no_updatable | morm::FT::primary_key);
	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", item_content, morm::FT::foreign_key);

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


void Item::prepare_table()
{
	table(L"core", L"item");
}


void Item::before_insert()
{
}


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


bool Item::insert(morm::ModelData * model_data, bool update_whole_tree)
{
	ItemModelData * item_model_data = dynamic_cast<ItemModelData*>(model_data);
	bool url_prepared_correctly = true;

	if( !item_model_data || item_model_data->prepare_unique_url )
	{
		url_prepared_correctly = prepare_url();
	}

	bool insert_status = morm::Model::insert(model_data, update_whole_tree);

	if( insert_status )
	{
		if( !url_prepared_correctly )
		{
			PT::Toa(id, url);
			insert_status = morm::Model::update(model_data, false);
		}
	}

	return insert_status;
}


bool Item::update(morm::ModelData * model_data, bool update_whole_tree)
{
	ItemModelData * item_model_data = dynamic_cast<ItemModelData*>(model_data);
	bool url_prepared_correctly = true;

	if( !item_model_data || item_model_data->prepare_unique_url )
	{
		CalcItemsHelper helper = calc_items_by_url(parent_id, url);

		if( helper.size == 1 && helper.item_id == id )
		{
			// the same item
		}
		else
		{
			url_prepared_correctly = prepare_url();
		}
	}

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

	if( update_status )
	{
		if( !url_prepared_correctly )
		{
			PT::Toa(id, url);
			update_status = morm::Model::update(model_data, false);
		}
	}

	return update_status;
}




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


CalcItemsHelper 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, min(id) as item_id from core.item").
		where().
		eq(L"parent_id", parent_id).
		eq(L"url", url).
		get();

	return helper;
}


/*
 * may we should check for '.' and '..' here too?
 */
bool Item::prepare_url()
{
std::wstring temp_url;
bool is_that_url;
const int max_index = 99;
size_t index = 1;
std::wstring postfix;

	// only root dir may not have the url
	if( parent_id != -1 && url.empty() )
		url = L"_";

	do
	{
		if( index > 1 )
		{
			postfix = L"_(";
			PT::Toa(index, postfix, false);
			postfix += L")";
		}

		PrepareNewFileName(url, postfix, temp_url);

		CalcItemsHelper helper = calc_items_by_url(parent_id, temp_url);

		if( helper.size > 0 )
		{
			is_that_url = true;
		}
		else
		{
			url = temp_url;
			is_that_url = false;
		}

		index += 1;
	}
	while( is_that_url && index <= max_index );

return !is_that_url;
}


void Item::do_migration(morm::ModelConnector * model_connector, Log & log)
{
	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)
	{
		log << "updating item id: " << item.id << ", type: " << (int)item.type << ", url: " << item.url << ", subject: " << item.subject << logend << logsave;
		item.item_content.set_save_mode(morm::Model::DO_INSERT_ON_SAVE);
		item.save();
	}
}

void Item::propagate_connector()
{
	item_content.set_connector(model_connector);
}


} // namespace Winix