#include "runapplet.h"
#include "ui_runapplet.h"
#include "utils.hpp"

#include <QLineEdit>
#include <QProcess>
#include <QMessageBox>
#include <QSettings>
#include <QFileDialog>
#include <QDesktopServices>
#include <QMimeDatabase>

RunApplet::RunApplet(QWidget *parent)
    : QDialog(parent)
    , ui(new Ui::RunApplet)
{
    ui->setupUi(this);
    setFixedSize(400, 175);

    restoreState();

    ui->label->setPixmap(QIcon::fromTheme("system-run-symbolic").pixmap(42, 42));
    // https://forum.qt.io/post/291563
    ui->cancelBtn->setIcon(style()->standardIcon(QStyle::SP_DialogCancelButton));
    ui->okBtn->setIcon(style()->standardIcon(QStyle::SP_DialogOkButton));
    ui->browseBtn->setIcon(style()->standardIcon(QStyle::SP_DialogOpenButton));

    connect(ui->cancelBtn, &QPushButton::clicked, this, [&]() {
        qApp->quit();
    });

    connect(ui->okBtn, &QPushButton::clicked, this, [&]() {
        runApp(ui->comboBox->currentText());
    });

    connect(ui->browseBtn, &QPushButton::clicked, this, [&]() {
        QFileDialog dialog;
        dialog.setWindowTitle(tr("Browse"));
        dialog.setMimeTypeFilters({"application/x-executable"});
        dialog.exec();
        QStringList files = dialog.selectedFiles();
        QString file = files.size() == 1 ? files[0] : "";
        if (file == "") return;
        ui->comboBox->lineEdit()->setText(file);
    });

    connect(ui->comboBox->lineEdit(), &QLineEdit::textChanged, this, [&]() {
        ui->okBtn->setDisabled(ui->comboBox->lineEdit()->text() == "");
    });
}

RunApplet::~RunApplet()
{
    delete ui;
}

void RunApplet::runApp(QString command) {
    QStringList args;

    int p_argc;
    uint32_t p_err;
    wchar_t** p_args = wine_parse_command_line(command.toStdWString().c_str(), &p_argc, &p_err);

    for (int i = 0; i < p_argc; i++) {
        args.push_back(QString::fromWCharArray(p_args[i]));
    }

    // If the file exists and is not an executable, use QDesktopServices instead
    QMimeDatabase mimeDb;
    QMimeType mime = mimeDb.mimeTypeForFile(args[0]);

    if (QFile::exists(command) && mime.name() != "application/x-executable") {
        QDesktopServices::openUrl(QUrl::fromLocalFile(command));
        return;
    }


    QProcess *process = new QProcess;
    process->setProgram(args[0]);
    args.remove(0);
    process->setArguments(args);
    bool status = process->startDetached();

    if (status) {
        qApp->quit();
    }

    QMessageBox messageBox;
    messageBox.critical(0, process->program(), QString(tr("Windows cannot find '%1'. Make sure you typed the name correctly, and then try again.")).arg(process->program()));
}

void RunApplet::closeEvent(QCloseEvent* evt) {
    saveState();

    return QDialog::closeEvent(evt);
}

void RunApplet::saveState() {
    // https://stackoverflow.com/a/33639884/16255372
    QSettings settings("aero-applets", "run-applet");

    QStringList commandHistory;

    for (int i = 0; i < ui->comboBox->count(); i++) {
        commandHistory.append(ui->comboBox->itemText(i));
    }

    settings.setValue("commandHistory", commandHistory);
}

void RunApplet::restoreState() {
    // https://stackoverflow.com/a/33639884/16255372
    QSettings settings("aero-applets", "run-applet");

    ui->comboBox->addItems(settings.value("commandHistory").toStringList());
}