/*
  Copyright 2010-2013 Grégory Soutadé

  This file is part of KissCount.

  KissCount 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.

  KissCount 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 KissCount.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <QTextStream>
#include <QFile>

#include <iostream>

#include "CSVExportEngine.hpp"

static CSVExportEngine csvExportEngine;

CSVExportEngine::CSVExportEngine()
{
    KissCount::RegisterExportEngine(this);

    _shortExt = ".csv";
    _longExt = _("CSV files (*.csv)");
}

CSVExportEngine::~CSVExportEngine()
{
}

bool CSVExportEngine::HandleFile(const QString& path, User* user, Database* db, KissCount* kiss)
{
    return ExportEngine::HandleFile(path, user, db, kiss);
}

bool CSVExportEngine::SaveAccounts()
{
    Account account;
    std::map<int, int>::iterator it;

    *_writer << "Accounts" << endl << endl;
    *_writer << "id;name;number;blocked;virtual;hidden" << endl;

    for(it=_accounts.begin(); it!=_accounts.end(); it++)
    {
	try
	{
	    account = _user->GetAccount(it->first);
	}
	catch(User::AccountNotFound)
	{
	    account.id = it->first;
	    account.name = "Unknown";
	    account.blocked = false;
	    account._virtual = false;
	    account.hidden = false;
	}

	ESCAPE_CHARS(account.name);
	ESCAPE_CHARS(account.number);

	*_writer << QString::number(account.id) << ";";
	*_writer << "\"" << account.name << "\"" << ";";
	*_writer << "\"" << account.number << "\"" << ";";
	// *_writer << (account.shared ? "1" : "0") << ";";
	*_writer << (account.blocked ? "1" : "0") << ";";
	// *_writer << (account._default ? "1" : "0") << ";" ;
	// *_writer << (account.is_owner ? "1" : "0") << ";";
	*_writer << (account._virtual ? "1" : "0") << ";";
	*_writer << (account.hidden ? "1" : "0");
	*_writer << endl;
    }

    *_writer << endl << endl;

    return true;
}

bool CSVExportEngine::SaveAccountAmounts()
{
    std::map<AccountAmount, int, AccountAmount>::iterator it;
    QString v;

    *_writer << "Account Amounts" << endl << endl;
    *_writer << "id;month;year;amount" << endl;

    for(it=_accountAmounts.begin(); it!=_accountAmounts.end(); it++)
    {
	*_writer << QString::number(it->first.account) << ";";
	*_writer << QString::number(it->first.month+1) << ";";
	*_writer << QString::number(it->first.year) << ";";
	*_writer << v.sprintf("%d", it->second);
	*_writer << endl;
    }

    *_writer << endl << endl;

    return true;
}

bool CSVExportEngine::SaveCategories()
{
    Category category;
    std::map<int, int>::iterator it;
    int rgb;
    QString v;

    *_writer << "Categories" << endl << endl;
    *_writer << "id;parent;name;font;backcolor;forecolor;fix_cost" << endl;

    for(it=_categories.begin(); it!=_categories.end(); it++)
    {
	category = _user->GetCategory(it->first);

	ESCAPE_CHARS(category.name);

	*_writer << QString::number(category.id) << ";";
	*_writer << QString::number(category.parent) << ";";
	*_writer << "\"" << category.name << "\"" << ";";
	*_writer << "\"" << category.font << "\"" << ";";
	rgb = category.backcolor.blue();
	rgb |= category.backcolor.green() << 8;
	rgb |= category.backcolor.red() << 16;
	*_writer << v.sprintf("0x%08X", rgb) << ";";
	rgb = category.forecolor.blue();
	rgb |= category.forecolor.green() << 8;
	rgb |= category.forecolor.red() << 16;
	*_writer << v.sprintf("0x%08X", rgb) << ";";
	*_writer << (category.fix_cost ? "1" : "0");
	*_writer << endl;
    }

    *_writer << endl << endl;

    return true;
}

bool CSVExportEngine::SaveTags()
{
    Tag tag;
    std::map<int, int>::iterator it;
    QString v;

    *_writer << "Tags" << endl << endl;
    *_writer << "id;name" << endl;

    for(it=_tags.begin(); it!=_tags.end(); it++)
    {
	tag = _user->GetTag(it->first);

	ESCAPE_CHARS(tag.name);

	*_writer << QString::number(tag.id) << ";";
	*_writer << "\"" << tag.name << "\"";
	*_writer << endl;
    }

    *_writer << endl << endl;

    return true;
}

bool CSVExportEngine::SaveOperations(std::vector<Operation>* operations)
{
    std::vector<Operation>::iterator it;
    QString v;

    *_writer << "Operations" << endl << endl;
    *_writer << "id;parent;day;month;year;amount;description;category;fix_cost;account;checked;transfert;formula;meta;virtual;tag" << endl;

    for(it=operations->begin(); it!=operations->end(); it++)
    {
	ESCAPE_CHARS(it->description);

	*_writer << QString::number(it->id) << ";" ;
	*_writer << QString::number(it->parent) << ";";
	*_writer << QString::number(it->day+1) << ";";
	*_writer << QString::number(it->month+1) << ";";
	*_writer << QString::number(it->year) << ";";
	*_writer << v.sprintf("%d", it->amount) << ";";
	*_writer << "\"" << it->description << "\"" << ";";
	*_writer << QString::number(it->category) << ";";
	*_writer << (it->fix_cost ? "1" : "0") << ";";
	*_writer << QString::number(it->account) << ";";
	*_writer << (it->checked ? "1" : "0") << ";";
	*_writer << QString::number(it->transfert) << ";";
	*_writer << it->formula << ";";
	*_writer << (it->meta ? "1" : "0") << ";";
	*_writer << (it->_virtual ? "1" : "0") << ";";
	*_writer << QString::number(it->tag);
	*_writer << endl;
    }

    *_writer << endl << endl;

    return true;
}

bool CSVExportEngine::SaveFile(std::vector<Operation>* operations)
{
    QFile file(_path);
    int rc;

    rc = ExportEngine::SaveFile(operations);

    if (!rc) return false;

    if (!file.open(QIODevice::ReadWrite|QIODevice::Truncate))
    {
	std::cout << "Error can't open the file " << _path.toStdString() << std::endl;
	return false;
    }

    _writer = new QTextStream(&file);

    _writer->setCodec("UTF-8");
    
    SaveAccounts();
    SaveAccountAmounts();
    SaveCategories();
    SaveTags();
    SaveOperations(operations);

    file.flush();
    file.close();

    delete _writer;
    
    return true;
}