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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/>.
*/
#ifndef SCHEMA_H
#define SCHEMA_H
#include <QStringList>
#include <QHash>
#include <QSharedPointer>
#include <QSqlField>
#include "tableschema.h"
#include "querybuilder.h"
namespace CuteEntityManager {
class Database;
class Schema {
public:
Schema(QSharedPointer<Database> database, QSharedPointer<QueryBuilder> builder);
virtual ~Schema();
//http://doc.qt.io/qt-5/sql-types.html
const QString TYPE_PK = "pk";
const QString TYPE_BIGPK = "bigpk";
const QString TYPE_STRING = "string";
const QString TYPE_TEXT = "text";
const QString TYPE_SMALLINT = "smallint";
const QString TYPE_INTEGER = "integer";
const QString TYPE_BIGINT = "bigint";
const QString TYPE_FLOAT = "float";
const QString TYPE_DOUBLE = "double";
const QString TYPE_DECIMAL = "decimal";
const QString TYPE_DATETIME = "datetime";
const QString TYPE_TIMESTAMP = "timestamp";
const QString TYPE_TIME = "time";
const QString TYPE_DATE = "date";
const QString TYPE_CHAR = "char";
const QString TYPE_BINARY = "binary";
const QString TYPE_BOOLEAN = "boolean";
const QString TYPE_MONEY = "money";

QString primaryKey(int length = 0) const;
QString bigPrimaryKey(int length = 0) const;
QString string(int length = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString text(bool notNull = false, QString defaultValue = "",
bool unique = false, QString checkConstraint = "") const;
QString smallInteger(int length = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString integer(int length = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString bigInteger(int length = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString floatColumn(int precision = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString doubleColumn(int precision = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString decimal(int precision = 0, int scale = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString dateTime(int precision = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString timestamp(int precision = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString time(int precision = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;
QString date( bool notNull = false, QString defaultValue = "") const;
QString binary(int length = 0, bool notNull = false, bool unique = false,
QString checkConstraint = "") const;
QString boolean(QString defaultValue = "", bool notNull = false) const;
QString money(int precision = 0, int scale = 0, bool notNull = false,
QString defaultValue = "", bool unique = false,
QString checkConstraint = "") const;



virtual QSharedPointer<QHash<QString, QString> >getTypeMap() = 0;
virtual QString quoteSimpleTableName(QString name);
virtual QString quoteTableName(QString name);
virtual QString quoteColumnName(QString name);
virtual QString quoteSimpleColumnName(QString name);
virtual QHash<QString, QSharedPointer<TableSchema>> getTableSchemas(
QString schema = "",
bool refresh = false);
virtual QSharedPointer<TableSchema> getTableSchema(QString name,
bool refresh = false);
virtual QStringList getTableNames(QString schema = "");
virtual QVariant getLastInsertID();
virtual void refresh();
virtual QString getRawTable(QString name);
virtual bool containsTable(QString tblname);

QHash<QString, QSharedPointer<TableSchema> > getTables();
void setTables(const QHash<QString, QSharedPointer<TableSchema> > &value);

QSharedPointer<Database> getDatabase() const;
void setDatabase(const QSharedPointer<Database> &value);

QSharedPointer<QueryBuilder> getQueryBuilder() const;

QSharedPointer<QHash<QString, QString> > getAbstractTypeMap() const;
void setAbstractTypeMap(const QSharedPointer<QHash<QString, QString> > &value);

protected:
virtual QString buildColumnSchema(QString type, QString length,
bool notNull = false, QString defaultValue = "",
bool unique = false, QString checkConstraint = "") const;
virtual QString buildLengthString(QString length) const;
virtual QString buildNotNullString(bool notNull) const;
virtual QString buildUniqueString(bool unique) const;
virtual QString buildDefaultString(QString def) const;
virtual QString buildCheckString(QString check) const;
virtual QString lengthToString(int length) const;
virtual QString combineScaleAndPrecision(int precision, int scale) const;


virtual QStringList findTableNames(QString schema = "") = 0;
virtual QHash<QString, QStringList> findUniqueIndexes(const
QSharedPointer<TableSchema>
&table) = 0;
virtual void findConstraints(const QSharedPointer<TableSchema> &ts) = 0;
virtual bool findColumns(const QSharedPointer<TableSchema> &ts);
virtual QSharedPointer<TableSchema> loadTableSchema(QString name) = 0;
virtual void initAbstractDatabaseTypes();
QSharedPointer<Database> database;
QSharedPointer<QHash<QString, QString>> typeMap;
QSharedPointer<QHash<QString, QString>> abstractTypeMap;
QHash<QString, QSharedPointer<TableSchema>> tables;
QSharedPointer<QueryBuilder> queryBuilder;
};
}
#endif // SCHEMA_H
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