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#pragma once

#include "processenums.h"
#include "processinterface.h"
#include "qtcassert.h"

#include <QProcess>

namespace Utils {

class CommandLine;
class Environment;
class FilePath;

namespace Internal {

class TerminalImpl final : public ProcessInterface
{
public:
    TerminalImpl();
    ~TerminalImpl() final;

    QByteArray readAllStandardOutput() final { QTC_CHECK(false); return {}; }
    QByteArray readAllStandardError() final { QTC_CHECK(false); return {}; }

    qint64 write(const QByteArray &) final { QTC_CHECK(false); return -1; }

    void terminate() final { stopProcess(); }
    void kill() final { stopProcess(); }
    void close() final { stopProcess(); }

    // intentionally no-op without an assert
    bool waitForStarted(int) final { return false; }
    bool waitForReadyRead(int) final { QTC_CHECK(false); return false; }
    // intentionally no-op without an assert
    bool waitForFinished(int) final { return false; }

    void start() final;

    QProcess::ProcessState state() const final;
    qint64 processId() const final;
    ProcessResultData resultData() const final;

    void kickoffProcess() final; // only debugger terminal, only non-windows
    void interrupt() final; // only debugger terminal, only non-windows
    qint64 applicationMainThreadID() const final; // only debugger terminal, only windows (-1 otherwise)

private:
    // OK, however, impl looks a bit different (!= NotRunning vs == Running).
    // Most probably changing it into (== Running) should be OK.
    bool isRunning() const;

    void stopProcess();
    void stubConnectionAvailable();
    void readStubOutput();
    void stubExited();
    void cleanupAfterStartFailure(const QString &errorMessage);
    void finish(int exitCode, QProcess::ExitStatus exitStatus);
    void killProcess();
    void killStub();
    void emitError(QProcess::ProcessError err, const QString &errorString);
    QString stubServerListen();
    void stubServerShutdown();
    void cleanupStub();
    void cleanupInferior();

    class TerminalProcessPrivate *d;
};

} // Internal
} // Utils