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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** This file is part of the Qt Build Suite.
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** use the contact form at http://qt.digia.com/contact-us.
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** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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****************************************************************************/

#ifndef QBS_COMMAND_H
#define QBS_COMMAND_H

#include "forward_decls.h"

#include <tools/codelocation.h>
#include <tools/persistentobject.h>

#include <QProcessEnvironment>
#include <QStringList>
#include <QVariantMap>
#include <QScriptValue>

namespace qbs {
namespace Internal {

class AbstractCommand : public PersistentObject
{
public:
    virtual ~AbstractCommand();

    enum CommandType {
        ProcessCommandType,
        JavaScriptCommandType
    };

    static QString defaultDescription() { return QString(); }
    static QString defaultHighLight() { return QString(); }
    static bool defaultIsSilent() { return false; }

    virtual CommandType type() const = 0;
    virtual bool equals(const AbstractCommand *other) const;
    virtual void fillFromScriptValue(const QScriptValue *scriptValue, const CodeLocation &codeLocation);

    const QString description() const { return m_description; }
    const QString highlight() const { return m_highlight; }
    bool isSilent() const { return m_silent; }
    CodeLocation codeLocation() const { return m_codeLocation; }

protected:
    AbstractCommand();

    void load(PersistentPool &pool);
    void store(PersistentPool &pool) const;
private:
    QString m_description;
    QString m_highlight;
    bool m_silent;
    CodeLocation m_codeLocation;
};

class ProcessCommand : public AbstractCommand
{
public:
    static ProcessCommandPtr create() { return ProcessCommandPtr(new ProcessCommand); }
    static void setupForJavaScript(QScriptValue targetObject);

    CommandType type() const { return ProcessCommandType; }
    bool equals(const AbstractCommand *otherAbstractCommand) const;
    void fillFromScriptValue(const QScriptValue *scriptValue, const CodeLocation &codeLocation);
    const QString program() const { return m_program; }
    const QStringList arguments() const { return m_arguments; }
    const QString workingDir() const { return m_workingDir; }
    int maxExitCode() const { return m_maxExitCode; }
    QString stdoutFilterFunction() const { return m_stdoutFilterFunction; }
    QString stderrFilterFunction() const { return m_stderrFilterFunction; }
    int responseFileThreshold() const { return m_responseFileThreshold; }
    QString responseFileUsagePrefix() const { return m_responseFileUsagePrefix; }
    QProcessEnvironment environment() const { return m_environment; }

private:
    ProcessCommand();

    void load(PersistentPool &pool);
    void store(PersistentPool &pool) const;

    void getEnvironmentFromList(const QStringList &envList);

    QString m_program;
    QStringList m_arguments;
    QString m_workingDir;
    int m_maxExitCode;
    QString m_stdoutFilterFunction;
    QString m_stderrFilterFunction;
    int m_responseFileThreshold; // When to use response files? In bytes of (program name + arguments).
    QString m_responseFileUsagePrefix;
    QProcessEnvironment m_environment;
};

class JavaScriptCommand : public AbstractCommand
{
public:
    static JavaScriptCommandPtr create() { return JavaScriptCommandPtr(new JavaScriptCommand); }
    static void setupForJavaScript(QScriptValue targetObject);

    virtual CommandType type() const { return JavaScriptCommandType; }
    bool equals(const AbstractCommand *otherAbstractCommand) const;
    void fillFromScriptValue(const QScriptValue *scriptValue, const CodeLocation &codeLocation);

    const QString &sourceCode() const { return m_sourceCode; }
    void setSourceCode(const QString &str) { m_sourceCode = str; }

    const QVariantMap &properties() const { return m_properties; }

private:
    JavaScriptCommand();

    void load(PersistentPool &pool);
    void store(PersistentPool &pool) const;

    QString m_sourceCode;
    QVariantMap m_properties;
};

QList<AbstractCommandPtr> loadCommandList(PersistentPool &pool);
void storeCommandList(const QList<AbstractCommandPtr> &commands, PersistentPool &pool);

bool commandListsAreEqual(const QList<AbstractCommandPtr> &l1, const QList<AbstractCommandPtr> &l2);

} // namespace Internal
} // namespace qbs

#endif // QBS_COMMAND_H