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#ifndef SEARCHQUERY_H
#define SEARCHQUERY_H
#include <QList>
#include <QRegExp>
#include <QSqlDatabase>
#include <QString>
#include <QStringList>
#include <utility>
#include <vector>
#include "library/trackset/crate/cratestorage.h"
#include "proto/keys.pb.h"
#include "track/track_decl.h"
#include "util/assert.h"
#include "util/memory.h"
const QString kMissingFieldSearchTerm = "\"\""; // "" searches for an empty string
QVariant getTrackValueForColumn(const TrackPointer& pTrack, const QString& column);
class QueryNode {
public:
QueryNode(const QueryNode&) = delete; // prevent copying
virtual ~QueryNode() = default;
virtual bool match(const TrackPointer& pTrack) const = 0;
virtual QString toSql() const = 0;
protected:
QueryNode() = default;
static QString concatSqlClauses(const QStringList& sqlClauses, const QString& sqlConcatOp);
};
class GroupNode : public QueryNode {
public:
void addNode(std::unique_ptr<QueryNode> pNode) {
DEBUG_ASSERT(pNode);
m_nodes.push_back(std::move(pNode));
}
protected:
// NOTE(uklotzde): std::vector is more suitable (efficiency)
// than a QList for a private member. And QList from Qt 4
// does not support std::unique_ptr yet.
std::vector<std::unique_ptr<QueryNode>> m_nodes;
};
class OrNode : public GroupNode {
public:
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
};
class AndNode : public GroupNode {
public:
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
};
class NotNode : public QueryNode {
public:
explicit NotNode(std::unique_ptr<QueryNode> pNode)
: m_pNode(std::move(pNode)) {
DEBUG_ASSERT(m_pNode);
}
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
private:
std::unique_ptr<QueryNode> m_pNode;
};
class TextFilterNode : public QueryNode {
public:
TextFilterNode(const QSqlDatabase& database,
const QStringList& sqlColumns,
const QString& argument);
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
private:
QSqlDatabase m_database;
QStringList m_sqlColumns;
QString m_argument;
};
class NullOrEmptyTextFilterNode : public QueryNode {
public:
NullOrEmptyTextFilterNode(const QSqlDatabase& database,
const QStringList& sqlColumns)
: m_database(database),
m_sqlColumns(sqlColumns) {
}
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
private:
QSqlDatabase m_database;
QStringList m_sqlColumns;
};
class CrateFilterNode : public QueryNode {
public:
CrateFilterNode(const CrateStorage* pCrateStorage,
const QString& crateNameLike);
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
private:
const CrateStorage* m_pCrateStorage;
QString m_crateNameLike;
mutable bool m_matchInitialized;
mutable std::vector<TrackId> m_matchingTrackIds;
};
class NoCrateFilterNode : public QueryNode {
public:
explicit NoCrateFilterNode(const CrateStorage* pCrateStorage);
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
private:
const CrateStorage* m_pCrateStorage;
QString m_crateNameLike;
mutable bool m_matchInitialized;
mutable std::vector<TrackId> m_matchingTrackIds;
};
class NumericFilterNode : public QueryNode {
public:
NumericFilterNode(const QStringList& sqlColumns, const QString& argument);
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
protected:
// Single argument constructor for that does not call init()
explicit NumericFilterNode(const QStringList& sqlColumns);
// init() must always be called in the constructor of the
// most derived class directly, because internally it calls
// the virtual function parse() that will be overridden by
// derived classes.
void init(QString argument);
private:
virtual double parse(const QString& arg, bool* ok);
QStringList m_sqlColumns;
bool m_bOperatorQuery;
bool m_bNullQuery;
QString m_operator;
double m_dOperatorArgument;
bool m_bRangeQuery;
double m_dRangeLow;
double m_dRangeHigh;
};
class NullNumericFilterNode : public QueryNode {
public:
explicit NullNumericFilterNode(const QStringList& sqlColumns);
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
QStringList m_sqlColumns;
};
class DurationFilterNode : public NumericFilterNode {
public:
DurationFilterNode(const QStringList& sqlColumns, const QString& argument);
private:
double parse(const QString& arg, bool* ok) override;
};
class KeyFilterNode : public QueryNode {
public:
KeyFilterNode(mixxx::track::io::key::ChromaticKey key, bool fuzzy);
bool match(const TrackPointer& pTrack) const override;
QString toSql() const override;
private:
QList<mixxx::track::io::key::ChromaticKey> m_matchKeys;
};
class SqlNode : public QueryNode {
public:
explicit SqlNode(const QString& sqlExpression)
// No need to wrap into parentheses here! This will be done
// later in toSql() if this node is a component of another
// composite node.
: m_sql(sqlExpression) {
}
bool match(const TrackPointer& pTrack) const override {
// We are usually embedded in an AND node so if we don't match
// everything then we block everything.
Q_UNUSED(pTrack);
return true;
}
QString toSql() const override {
return m_sql;
}
private:
QString m_sql;
};
#endif /* SEARCHQUERY_H */
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