/* This file is part of RetroFE.
 *
 * RetroFE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * RetroFE 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with RetroFE.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "MamelistMetadata.h"
#include "DB.h"
#include "../Utility/Log.h"
#include "Metadata.h"
#include <rapidxml.hpp>
#include <fstream>
#include <sstream>
#include <vector>
#include <sqlite3.h>


MamelistMetadata::MamelistMetadata(DB &dbInstance)
    : DBInstance(dbInstance)
{
}

MamelistMetadata::~MamelistMetadata()
{
}

bool MamelistMetadata::Import(std::string filename, std::string collection)
{
    bool retVal = true;
    rapidxml::xml_document<> doc;
    rapidxml::xml_node<> * rootNode;
    char *error = NULL;
    sqlite3 *handle = DBInstance.GetHandle();

    std::ifstream f(filename.c_str());

    if (!f.good())
    {
        Logger::Write(Logger::ZONE_ERROR, "Mamelist", "Could not find mamelist metadata file at \"" + filename + "\"");

        retVal = false;
    }

    f.close();

    if(retVal)
    {
        Logger::Write(Logger::ZONE_INFO, "Mamelist", "Importing mamelist file \"" + filename + "\"");
        std::ifstream file(filename.c_str());
        std::vector<char> buffer((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());

        buffer.push_back('\0');

        doc.parse<0>(&buffer[0]);

        rootNode = doc.first_node("mame");

        sqlite3_exec(handle, "BEGIN IMMEDIATE TRANSACTION;", NULL, NULL, &error);
        for (rapidxml::xml_node<> * game = rootNode->first_node("game"); game; game = game->next_sibling())
        {
            rapidxml::xml_attribute<> *nameNode = game->first_attribute("name");
            rapidxml::xml_attribute<> *cloneOfXml = game->first_attribute("cloneof");

            if(nameNode != NULL)
            {
                std::string name = nameNode->value();
                rapidxml::xml_node<> *descriptionNode = game->first_node("description");
                rapidxml::xml_node<> *yearNode = game->first_node("year");
                rapidxml::xml_node<> *manufacturerNode = game->first_node("manufacturer");
                rapidxml::xml_node<> *inputNode = game->first_node("input");

                std::string description = (descriptionNode == NULL) ? nameNode->value() : descriptionNode->value();
                std::string year = (yearNode == NULL) ? "" : yearNode->value();
                std::string manufacturer = (manufacturerNode == NULL) ? "" : manufacturerNode->value();
                std::string cloneOf = (cloneOfXml == NULL) ? "" : cloneOfXml->value();
                std::string players;
                std::string buttons;

                if(inputNode != NULL)
                {
                    rapidxml::xml_attribute<> *playersAttribute = inputNode->first_attribute("players");
                    rapidxml::xml_attribute<> *buttonsAttribute = inputNode->first_attribute("buttons");

                    if(playersAttribute)
                    {
                        players = playersAttribute->value();
                    }

                    if(buttonsAttribute)
                    {
                        buttons = buttonsAttribute->value();
                    }

                }

                sqlite3_stmt *stmt;
                sqlite3_prepare_v2(handle,
                                   "UPDATE OR REPLACE Meta SET title=?, year=?, manufacturer=?, players=?, buttons=?, cloneOf=? WHERE name=? AND collectionName=?;",
                                   -1, &stmt, 0);

                sqlite3_bind_text(stmt, 1, description.c_str(), -1, SQLITE_TRANSIENT);
                sqlite3_bind_text(stmt, 2, year.c_str(), -1, SQLITE_TRANSIENT);
                sqlite3_bind_text(stmt, 3, manufacturer.c_str(), -1, SQLITE_TRANSIENT);
                sqlite3_bind_text(stmt, 4, players.c_str(), -1, SQLITE_TRANSIENT);
                sqlite3_bind_text(stmt, 5, buttons.c_str(), -1, SQLITE_TRANSIENT);
                sqlite3_bind_text(stmt, 6, cloneOf.c_str(), -1, SQLITE_TRANSIENT);
                sqlite3_bind_text(stmt, 7, name.c_str(), -1, SQLITE_TRANSIENT);
                sqlite3_bind_text(stmt, 8, collection.c_str(), -1, SQLITE_TRANSIENT);

                sqlite3_step(stmt);
                sqlite3_finalize(stmt);

            }
        }
        sqlite3_exec(handle, "COMMIT TRANSACTION;", NULL, NULL, &error);

    }



    return retVal;
}