#include "WorkTimeCalculator.h"
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QApplication>
#include <QInputDialog>
#include <QSettings>
#include <QMessageBox>
#include <QStyleFactory>

WorkTimeCalculator::WorkTimeCalculator() {
    // Hauptlayout
    QWidget *mainWidget = new QWidget;
    QVBoxLayout *layout = new QVBoxLayout(mainWidget);
    mainWidget->setLayout(layout);  // Setze das Layout für das Widget

    // Einstempelzeit
    QLabel *startTimeLabel = new QLabel("Einstempelzeit:");
    startTimeEdit = new QTimeEdit;
    startTimeEdit->setTime(QTime::currentTime());
    layout->addWidget(startTimeLabel);
    layout->addWidget(startTimeEdit);

    // Pausenzeiten
    QLabel *breaksLabel = new QLabel("Pausenzeiten (Minuten):");
    layout->addWidget(breaksLabel);

    addBreakButton = new QPushButton("Pause hinzufügen");
    layout->addWidget(addBreakButton);

    breakList = new QListWidget;
    layout->addWidget(breakList);

    connect(addBreakButton, &QPushButton::clicked, this, &WorkTimeCalculator::addBreak);

    // Ausstempelzeit (optional)
    includeEndTimeCheckbox = new QCheckBox("Ausstempelzeit angeben");
    endTimeEdit = new QTimeEdit;
    endTimeEdit->setTime(QTime::currentTime());
    endTimeEdit->setVisible(false);
    layout->addWidget(includeEndTimeCheckbox);
    layout->addWidget(endTimeEdit);

    connect(includeEndTimeCheckbox, &QCheckBox::toggled, endTimeEdit, &QTimeEdit::setVisible);

    // Regelarbeitszeit
    QLabel *workTimeLabel = new QLabel("Regelarbeitszeit (Std:Min):");
    layout->addWidget(workTimeLabel);

    dailyHoursSpin = new QSpinBox;
    dailyHoursSpin->setRange(0, 24);
    dailyMinutesSpin = new QSpinBox;
    dailyMinutesSpin->setRange(0, 59);

    QHBoxLayout *workTimeLayout = new QHBoxLayout();
    workTimeLayout->addWidget(dailyHoursSpin);
    workTimeLayout->addWidget(dailyMinutesSpin);
    layout->addLayout(workTimeLayout);

    // Berechnung starten
    calculateButton = new QPushButton("Berechnung starten");
    layout->addWidget(calculateButton);

    resultLabel = new QLabel;
    layout->addWidget(resultLabel);

    connect(calculateButton, &QPushButton::clicked, this, &WorkTimeCalculator::calculateWorkTime);

    // Dark Mode
    qApp->setStyle(QStyleFactory::create("Fusion"));
    QPalette darkPalette;
    darkPalette.setColor(QPalette::Window, QColor(53, 53, 53));
    darkPalette.setColor(QPalette::WindowText, Qt::white);
    darkPalette.setColor(QPalette::Base, QColor(25, 25, 25));
    darkPalette.setColor(QPalette::AlternateBase, QColor(53, 53, 53));
    darkPalette.setColor(QPalette::Text, Qt::white);
    darkPalette.setColor(QPalette::Button, QColor(53, 53, 53));
    darkPalette.setColor(QPalette::ButtonText, Qt::white);

    qApp->setPalette(darkPalette);

    setCentralWidget(mainWidget);
    setWindowTitle("Arbeitszeitrechner");

    loadSettings();
}

WorkTimeCalculator::~WorkTimeCalculator() {
    saveSettings();
}

void WorkTimeCalculator::addBreak() {
    bool ok;
    int breakTime = QInputDialog::getInt(this, "Pause hinzufügen", "Pause (Minuten):", 0, 0, 1440, 1, &ok);
    if (ok && breakTime > 0) {
        breakList->addItem(QString::number(breakTime) + " Minuten");
    }
}

void WorkTimeCalculator::calculateWorkTime() {
    QTime startTime = startTimeEdit->time();
    int totalBreakMinutes = 0;

    for (int i = 0; i < breakList->count(); ++i) {
        totalBreakMinutes += breakList->item(i)->text().split(" ")[0].toInt();
    }

    // Gesamte Pausenzeit anzeigen
    QString breakTimeMessage = QString("Gesamte Pausenzeit: %1 Minuten").arg(totalBreakMinutes);

    QTime endTime;
    if (includeEndTimeCheckbox->isChecked()) {
        endTime = endTimeEdit->time();
    } else {
        // Ausstempelzeit berechnen, wenn nicht angegeben
        int dailyMinutes = dailyHoursSpin->value() * 60 + dailyMinutesSpin->value();
        endTime = startTime.addSecs((dailyMinutes + totalBreakMinutes) * 60);
    }

    int workedMinutes = startTime.secsTo(endTime) / 60 - totalBreakMinutes;

    int dailyMinutes = dailyHoursSpin->value() * 60 + dailyMinutesSpin->value();
    int balanceMinutes = workedMinutes - dailyMinutes;

    QString result = QString("Netto-Arbeitszeit: %1 Stunden %2 Minuten\n")
    .arg(workedMinutes / 60)
    .arg(workedMinutes % 60);
    result += QString("Zeitkonto: %1 Minuten\n").arg(balanceMinutes);
    result += breakTimeMessage; // Gesamte Pausenzeit hinzufügen

    if (!includeEndTimeCheckbox->isChecked()) {
        result += QString("\nVorgeschlagene Ausstempelzeit: %1").arg(endTime.toString("hh:mm"));
    }

    resultLabel->setText(result);
}

void WorkTimeCalculator::loadSettings() {
    QSettings settings("ArbeitszeitRechner", "Settings");
    dailyHoursSpin->setValue(settings.value("dailyHours", 8).toInt());
    dailyMinutesSpin->setValue(settings.value("dailyMinutes", 0).toInt());
}

void WorkTimeCalculator::saveSettings() {
    QSettings settings("ArbeitszeitRechner", "Settings");
    settings.setValue("dailyHours", dailyHoursSpin->value());
    settings.setValue("dailyMinutes", dailyMinutesSpin->value());
}