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/*
* Copyright (C) 2015 Christian Ehringfeld <c.ehringfeld@t-online.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation.
*
* 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 Lesser General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "schema.h"
#include <QRegularExpression>
#include <QSqlRecord>
#include <QSqlQuery>
#include "database.h"
using namespace CuteEntityManager;

Schema::Schema(QSharedPointer<Database> database,
QSharedPointer<QueryBuilder> builder) {
this->database = database;
this->abstractTypeMap = QSharedPointer<QHash<QString, QString>>
(new QHash<QString, QString>());
this->queryBuilder = builder;
this->typeMap = QSharedPointer<QHash<QString, QString>>(new
QHash<QString, QString>());
this->initAbstractDatabaseTypes();
}

Schema::~Schema() {
}

void Schema::initAbstractDatabaseTypes() {
this->abstractTypeMap = QSharedPointer<QHash<QString, QString>>::create();
this->abstractTypeMap->insert("bool", TYPE_SMALLINT);
this->abstractTypeMap->insert("short", TYPE_SMALLINT);
this->abstractTypeMap->insert("int", TYPE_INTEGER);
this->abstractTypeMap->insert("long", TYPE_INTEGER);
this->abstractTypeMap->insert("long long", TYPE_INTEGER);
this->abstractTypeMap->insert("qlonglong", TYPE_INTEGER);
this->abstractTypeMap->insert("float", TYPE_FLOAT);
this->abstractTypeMap->insert("double", TYPE_FLOAT);
this->abstractTypeMap->insert("long double", TYPE_FLOAT);
this->abstractTypeMap->insert("qint", TYPE_INTEGER);
this->abstractTypeMap->insert("quint", TYPE_INTEGER);
this->abstractTypeMap->insert("quuid", TYPE_INTEGER);
this->abstractTypeMap->insert("qfloat", TYPE_FLOAT);
this->abstractTypeMap->insert("unsigned short", TYPE_SMALLINT);
this->abstractTypeMap->insert("unsigned int", TYPE_INTEGER);
this->abstractTypeMap->insert("unsigned long", TYPE_INTEGER);
this->abstractTypeMap->insert("unsigned long long", TYPE_INTEGER);
this->abstractTypeMap->insert("char", TYPE_CHAR);
this->abstractTypeMap->insert("std::string", TYPE_TEXT);
this->abstractTypeMap->insert("std::wstring", TYPE_TEXT);
this->abstractTypeMap->insert("QString", TYPE_TEXT);
this->abstractTypeMap->insert("QVariant", TYPE_TEXT);
this->abstractTypeMap->insert("QUuid", TYPE_TEXT);
this->abstractTypeMap->insert("QDate", TYPE_DATE);
this->abstractTypeMap->insert("QTime", TYPE_TIME);
this->abstractTypeMap->insert("QDateTime", TYPE_DATETIME);
this->abstractTypeMap->insert("QByteArray", TYPE_BINARY);
this->abstractTypeMap->insert("QBitArray", TYPE_BINARY);
}

QString Schema::quoteSimpleTableName(QString name) {
return name.indexOf("`") != -1 ? name : "`" + name + "`";
}

QString Schema::quoteTableName(QString name) {
if (name.indexOf("(") != -1 || name.indexOf("{{") != -1) {
return name;
}
if (name.indexOf(".") == -1) {
return this->quoteSimpleTableName(name);
}
QStringList parts = name.split(".");
for (int i = 0; i < parts.size(); ++i) {
parts.replace(i, this->quoteSimpleTableName(parts.at(i)));
}
return parts.join(".");
}

QString Schema::quoteColumnName(QString name) {
if (name.indexOf("(") != -1 || name.indexOf("[[") != -1
|| name.indexOf("{{") != -1) {
return name;
}
int pos = name.indexOf(".");
QString prefix = "";
if (pos != -1 ) {
prefix = this->quoteTableName(name.mid(0, pos)) + ".";
name = name.mid(pos + 1);
}
return prefix + this->quoteSimpleColumnName(name);
}

QString Schema::quoteSimpleColumnName(QString name) {
return name.indexOf("`") != -1 || name == "*" ? name : "`" + name + "`";
}

QHash<QString, QSharedPointer<TableSchema> > Schema::getTableSchemas(
QString schema, bool refresh) {
QStringList names = this->getTableNames();
for (int i = 0; i < names.size(); ++i) {
QString name = names.at(i);
if (schema != "") {
name = schema + "." + name;
}
this->getTableSchema(name, refresh);
}
return this->tables;
}

QStringList Schema::getTableNames(QString schema) {
Q_UNUSED(schema)
return this->database->getDatabase().tables();
}

QVariant Schema::getLastInsertID() {
QSqlQuery q(this->database->getDatabase());
auto lastId = q.lastInsertId();
return lastId;
}

void Schema::refresh() {
this->tables.clear();
}

QString Schema::getRawTable(QString name) {
if (name.indexOf("{{")) {
QRegularExpression re(QRegularExpression::escape("/\\{\{(.*?)\\}\\}/"));
return name.replace(re, QRegularExpression::escape("\\1"));
}
return name;
}

bool Schema::containsTable(QString tblname) {
if (this->tables.size() !=
this->database->getDatabase().tables().size()) {
this->setTables(this->getTableSchemas());
}
return this->database->getDatabase().tables().contains(tblname);
}

QSharedPointer<TableSchema> Schema::getTableSchema(QString name, bool refresh) {
if (this->tables.contains(name) && !refresh) {
return this->tables.value(name);
}
QString realName = this->getRawTable(name);
auto ts = this->loadTableSchema(realName);
if (ts.data()) {
this->tables.insert(name, ts);
}
return ts;
}

QSharedPointer<Database> Schema::getDatabase() const {
return database;
}

void Schema::setDatabase(const QSharedPointer<Database> &value) {
database = value;
}
QSharedPointer<QueryBuilder> Schema::getQueryBuilder() const {
return queryBuilder;
}

QSharedPointer<QHash<QString, QString> > Schema::getAbstractTypeMap() const {
return abstractTypeMap;
}

void Schema::setAbstractTypeMap(const QSharedPointer<QHash<QString, QString> >
&value) {
abstractTypeMap = value;
}


QHash<QString, QSharedPointer<TableSchema> > Schema::getTables() const {
return this->tables;
}

void Schema::setTables(const QHash<QString, QSharedPointer<TableSchema> >
&value) {
tables = value;
}

(19-19/22)