#include "mainwindow.h"

#include <QApplication>
#include <QCommandLineOption>
#include <QCommandLineParser>
#include <QDir>
#include <QFileInfo>
#include <QIcon>
#include <QMessageBox>
#include <QObject>

#include "AuthView.h"
#include "SingleInstanceManager.h"
#include "Version.h"

int main(int argc, char* argv[])
{
    QApplication app(argc, argv);
    app.setApplicationName(QStringLiteral("ParkingSpaceGuideApp"));
    app.setApplicationVersion(QString::fromLatin1(GetParkingSpaceGuideVersion()));
    app.setWindowIcon(QIcon(":/common/resource/logo.png"));

    QCommandLineParser parser;
    parser.setApplicationDescription(QObject::tr("停机引导程序"));
    parser.addHelpOption();
    parser.addVersionOption();

    const QCommandLineOption simulateDirectoryOption(
        QStringList{QStringLiteral("s"),
                    QStringLiteral("simulate-dir"),
                    QStringLiteral("sim-dir")},
        QObject::tr("从目录中的多帧 TXT 和 BMP 数据运行仿真。"),
        QObject::tr("目录"));
    const QCommandLineOption simulationIntervalOption(
        QStringList{QStringLiteral("sim-interval"),
                    QStringLiteral("sim-interval-ms")},
        QObject::tr("仿真检测周期（毫秒），默认 100。"),
        QObject::tr("毫秒"),
        QStringLiteral("100"));
    const QCommandLineOption simulationLoopOption(
        QStringList{QStringLiteral("sim-loop")},
        QObject::tr("循环回放整个多帧仿真目录。"));
    parser.addOption(simulateDirectoryOption);
    parser.addOption(simulationIntervalOption);
    parser.addOption(simulationLoopOption);
    parser.process(app);

    ParkingSpaceGuideSimulationOptions simulationOptions;
    simulationOptions.enabled = parser.isSet(simulateDirectoryOption);
    simulationOptions.loop = parser.isSet(simulationLoopOption);
    if (simulationOptions.enabled) {
        const QFileInfo directoryInfo(parser.value(simulateDirectoryOption));
        if (!directoryInfo.exists() || !directoryInfo.isDir()) {
            QMessageBox::critical(
                nullptr,
                QObject::tr("仿真参数错误"),
                QObject::tr("仿真数据目录不存在或不是目录：\n%1")
                    .arg(directoryInfo.absoluteFilePath()));
            return 2;
        }

        bool intervalValid = false;
        const int intervalMs = parser.value(simulationIntervalOption)
                                   .toInt(&intervalValid);
        if (!intervalValid || intervalMs < 1 || intervalMs > 60000) {
            QMessageBox::critical(
                nullptr,
                QObject::tr("仿真参数错误"),
                QObject::tr("--sim-interval 必须是 1 到 60000 之间的毫秒数。"));
            return 2;
        }

        simulationOptions.dataDirectory = QDir::cleanPath(
            directoryInfo.absoluteFilePath());
        simulationOptions.frameIntervalMs = intervalMs;
    } else if (parser.isSet(simulationIntervalOption) ||
               parser.isSet(simulationLoopOption)) {
        QMessageBox::critical(
            nullptr,
            QObject::tr("仿真参数错误"),
            QObject::tr("--sim-interval 和 --sim-loop 必须与 --simulate-dir 一起使用。"));
        return 2;
    }

    SingleInstanceManager instanceManager("ParkingSpaceGuideApp_SingleInstance_Key");
    if (instanceManager.isAnotherInstanceRunning()) {
        QMessageBox messageBox;
        messageBox.setWindowTitle(QObject::tr("应用已运行"));
        messageBox.setText(QObject::tr("停机引导程序已在运行。"));
        messageBox.addButton(QObject::tr("确定"), QMessageBox::AcceptRole);
        messageBox.exec();
        return 0;
    }

    if (!AuthView::CheckAndShow(nullptr)) {
        return 0;
    }

    MainWindow window(simulationOptions);
    window.show();

    return app.exec();
}