/*
	(c) Copyright  2012 - 2018 Anton Sviridenko
	https://picapica.im

	This program 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, version 3.

	This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
*/
#include "accounts.h"
#include <QFile>

Accounts::AccountRecord Accounts::current_account;

Accounts::AccountRecord & Accounts::GetCurrentAccount()
{
	return Accounts::current_account;
}

void Accounts::SetCurrentAccount(Accounts::AccountRecord &rec)
{
	Accounts::current_account = rec;
}

Accounts::Accounts(QString storage)
{
	dbconn = QSqlDatabase::database();
	dbconn.setDatabaseName(storage);

	if (!dbconn.open())
	{
		lasterr = dbconn.lastError();
		return;
	}

	QSqlQuery query;

	query.exec("PRAGMA foreign_keys=ON;");

	//check result, if foreign keys support is on
}

void Accounts::Add(AccountRecord &acc)
{
	QSqlQuery query;

	query.prepare("insert into accounts (id, name, cert_file, pkey_file, ca_file) values (:id, :name, :cert_file, :pkey_file, :ca_file);");
	query.bindValue(":id", acc.id);
	query.bindValue(":name", acc.name);
	query.bindValue(":cert_file", acc.cert_file);
	query.bindValue(":pkey_file", acc.pkey_file);
	query.bindValue(":ca_file", acc.CA_file);
	query.exec();

	lasterr = query.lastError();
}

void Accounts::Delete(QByteArray id)
{
	QSqlQuery query;

	query.prepare("delete from accounts where id=:id");
	query.bindValue(":id", id);
	query.exec();

	lasterr = query.lastError();
}

QList<Accounts::AccountRecord> Accounts::GetAccounts()
{
	AccountRecord r;
	QList<Accounts::AccountRecord> L;
	QSqlQuery query;

	//
	query.setForwardOnly(true);
	query.exec("select id, name, cert_file, pkey_file, ca_file from accounts");
	lasterr = query.lastError();

	if (lasterr.isValid())
		return L;

	while(query.next())
	{
		r.id = query.value(0).toByteArray();
		r.name = query.value(1).toString();
		r.cert_file = query.value(2).toString();
		r.pkey_file = query.value(3).toString();
		r.CA_file = query.value(4).toString();

		L << r;
	}

	return L;
}

QString Accounts::GetName(QByteArray id)
{
	QSqlQuery query;

	query.prepare("select name from accounts where id=:id");
	query.bindValue(":id", id);
	query.exec();

	lasterr = query.lastError();

	if (lasterr.isValid())
		return QString::null;

	query.next();

	return query.value(0).toString();
}

bool Accounts::isOK()
{
	return  !lasterr.isValid();
}

QString Accounts::GetLastError()
{
	return lasterr.text();
}

bool Accounts::CheckFiles(AccountRecord &acc, QString &error_string)
{
	if (!QFile::exists(acc.cert_file))
	{
		error_string = QObject::tr("Certificate file %1 does not exist").arg(acc.cert_file);
		return false;
	}

	if (!QFile::exists(acc.pkey_file))
	{
		error_string = QObject::tr("Private key file %1 does not exist").arg(acc.pkey_file);
		return false;
	}

	return true;
}