#include "SettingsDialog.h"
#include <QVBoxLayout>
#include <QFormLayout>
#include <QTimer>
#include <QColorDialog>
#include <QHBoxLayout>
#include <QFrame>
#include <QLabel>
#include <QDesktopServices>
#include <QUrl>
#include <QFile>

QFrame* addDivider() {
    QFrame *divider = new QFrame();
    divider->setFrameShape(QFrame::HLine);
    divider->setFrameShadow(QFrame::Sunken);
    return divider;
}

SettingsDialog::SettingsDialog(const NoteData &data, QWidget *parent) 
    : QDialog(parent), originalData(data) {
    
    // version
    QString versionRemote = "68.026.1";

    setWindowTitle("");
    setFixedWidth(333);

    auto *layout = new QVBoxLayout(this);
    auto *form = new QFormLayout();

    form->setVerticalSpacing(7);
    form->setHorizontalSpacing(7);

    phraseEdit = new QLineEdit();
    phraseEdit->setEchoMode(QLineEdit::Password);

    encryptBtn = new QPushButton("Encrypt");
    decryptBtn = new QPushButton("Decrypt");

    encryptBtn->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    decryptBtn->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);

    QHBoxLayout *cryptoLayout = new QHBoxLayout();
    cryptoLayout->addWidget(encryptBtn);
    cryptoLayout->addWidget(decryptBtn);

    form->addRow("Pass Phrase", phraseEdit);
    form->addRow("", cryptoLayout);
    form->addRow(addDivider());

    currentBg = data.bgColor;
    currentText = data.textColor;
    currentFocus = data.focusColor;

    fontCombo = new QFontComboBox();
    fontCombo->setCurrentFont(QFont(data.fontFamily));

    sizeSpin = new QSpinBox();
    sizeSpin->setRange(8, 47);
    sizeSpin->setValue(data.fontSize);

    bgColorBtn = new QPushButton("Ground Color");
    textColorBtn = new QPushButton("Text Color");
    focusColorBtn = new QPushButton("Focus Color");

    QFrame *bgPreview = new QFrame();
    bgPreview->setFixedSize(23, 23);
    QFrame *textPreview = new QFrame();
    textPreview->setFixedSize(23, 23);
    QFrame *focusPreview = new QFrame();
    focusPreview->setFixedSize(23, 23);
    QFrame *highlightPreview = new QFrame();
    highlightPreview->setFixedSize(23, 23);

    auto updateButtonColors = [this, bgPreview, textPreview, focusPreview]() {
        bgPreview->setStyleSheet(QString("background-color: %1; border: 1px solid gray;").arg(currentBg.name()));
        textPreview->setStyleSheet(QString("background-color: %1; border: 1px solid gray;").arg(currentText.name()));
        focusPreview->setStyleSheet(QString("background-color: %1; border: 1px solid gray;").arg(currentFocus.name()));
     };

    auto *bgLayout = new QHBoxLayout();
    bgLayout->addWidget(bgPreview); bgLayout->addWidget(bgColorBtn);
    auto *textLayout = new QHBoxLayout();
    textLayout->addWidget(textPreview); textLayout->addWidget(textColorBtn);
    updateButtonColors();

    connect(bgColorBtn, &QPushButton::clicked, [this, updateButtonColors]() {
        QColor c = QColorDialog::getColor(currentBg, this, "Select Ground Color");
        if (c.isValid()) { currentBg = c; updateButtonColors(); }
    });

    connect(textColorBtn, &QPushButton::clicked, [this, updateButtonColors]() {
        QColor c = QColorDialog::getColor(currentText, this, "Select Text Color");
        if (c.isValid()) { currentText = c; updateButtonColors(); }
    });

    connect(focusColorBtn, &QPushButton::clicked, [this, updateButtonColors]() {
        QColor c = QColorDialog::getColor(currentFocus, this, "Select Focus Color");
        if (c.isValid()) { currentFocus = c; updateButtonColors(); }
    });

    auto *focusLayout = new QHBoxLayout();
    focusLayout->addWidget(focusPreview);
    focusLayout->addWidget(focusColorBtn);

    autoStartCheck = new QCheckBox("");
    autoStartCheck->setChecked(data.autoStart);

    hideTaskbarCheck = new QCheckBox("");
    hideTaskbarCheck->setChecked(data.hideTaskbar);

    form->addRow("Font Family", fontCombo);
    form->addRow("Font Size", sizeSpin);
    form->addRow("Font Color", textLayout);
    form->addRow("Focus Color", focusLayout);
    form->addRow("Ground Color", bgLayout);
    form->addRow(addDivider());
    form->addRow("Auto Start", autoStartCheck);
    form->addRow("Hide Task Bar", hideTaskbarCheck);
    form->addRow(addDivider());

    connect(encryptBtn, &QPushButton::clicked, [this]() {
        if (!phraseEdit->text().isEmpty()) {
            emit encryptRequested(phraseEdit->text());
        }
    });

    connect(decryptBtn, &QPushButton::clicked, [this]() {
        if (!phraseEdit->text().isEmpty()) {
            emit decryptRequested(phraseEdit->text());
        }
    });

    layout->addLayout(form);

    auto *bottomLayout = new QHBoxLayout();
    
    auto *saveBtn = new QPushButton("Save");
    auto *cancelBtn = new QPushButton("Cancel");
    
    saveBtn->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    cancelBtn->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);

    auto *actionLayout = new QHBoxLayout();
    actionLayout->setContentsMargins(0, 0, 0, 0);
    actionLayout->addWidget(saveBtn);
    actionLayout->addWidget(cancelBtn);
    
    form->addRow("", actionLayout);
    form->addItem(new QSpacerItem(1, 1, QSizePolicy::Minimum, QSizePolicy::Fixed));

    auto *infoLayout = new QHBoxLayout();
    infoLayout->setAlignment(Qt::AlignCenter);
    infoLayout->setSpacing(6);

    QLabel *dataLabel = new QLabel("<a style='color: gray; text-decoration: none;' href='conf'>data: wedge.conf</a>");
    dataLabel->setOpenExternalLinks(false);
    dataLabel->setStyleSheet("font-size: 11px;");
    
    auto openFileLogic = [this](const QString &link) {
        QString path = ConfigManager::getConfigPath();
        if (link == "conf") {
            QDesktopServices::openUrl(QUrl::fromLocalFile(path + "/wedge.conf"));
        }
    };

    connect(dataLabel, &QLabel::linkActivated, openFileLogic);

    QLabel *sep1 = new QLabel("  ");
    sep1->setStyleSheet("color: gray; font-size: 11px;");

    QLabel *versionLabel = new QLabel(versionRemote);
    versionLabel->setStyleSheet("color: gray; font-size: 11px;");

    QLabel *sep2 = new QLabel("  ");
    sep2->setStyleSheet("color: gray; font-size: 11px;");

    QLabel *supportLink = new QLabel("<a style='color: gray; text-decoration: none;' href='https://vgmlr.com/mlwrk'>vgmlr.com/mlwrk</a>");
    supportLink->setOpenExternalLinks(true);
    supportLink->setStyleSheet("font-size: 11px;");
    
    infoLayout->addWidget(dataLabel); 
    infoLayout->addWidget(sep1);
    infoLayout->addWidget(versionLabel);
    infoLayout->addWidget(sep2);
    infoLayout->addWidget(supportLink);
    
    layout->addLayout(form);
    layout->addLayout(infoLayout);
    layout->addSpacing(6);

    connect(saveBtn, &QPushButton::clicked, this, &QDialog::accept);
    connect(cancelBtn, &QPushButton::clicked, this, &QDialog::reject);

}

NoteData SettingsDialog::getUpdatedData() const {
    NoteData data = originalData;
    data.fontFamily = fontCombo->currentFont().family();
    data.fontSize = sizeSpin->value();
    data.autoStart = autoStartCheck->isChecked();
    data.hideTaskbar = hideTaskbarCheck->isChecked();
    data.bgColor = currentBg;
    data.textColor = currentText;
    data.focusColor = currentFocus;
    return data;
}