// SPDX-License-Identifier: BSD-3-Clause
// SPDX-FileCopyrightText: 2020-2023 The Monero Project

#include "WalletWizard.h"
#include "PageWalletSeed.h"
#include "ui_PageWalletSeed.h"
#include "constants.h"
#include "Seed.h"

#include <QMessageBox>
#include <QLineEdit>
#include <QCheckBox>
#include <QDialogButtonBox>

PageWalletSeed::PageWalletSeed(WizardFields *fields, QWidget *parent)
    : QWizardPage(parent)
    , ui(new Ui::PageWalletSeed)
    , m_fields(fields)
{
    ui->setupUi(this);

    ui->frame_invalidSeed->hide();
    QPixmap warningIcon = QPixmap(":/assets/images/warning.png");
    ui->warningIcon->setPixmap(warningIcon.scaledToWidth(32, Qt::SmoothTransformation));

    QPixmap infoIcon = QPixmap(":/assets/images/info2.svg");
    ui->newSeedWarningIcon->setPixmap(infoIcon.scaledToWidth(32, Qt::SmoothTransformation));

    QPixmap pixmap = QPixmap(":/assets/images/seed.png");
    ui->seedIcon->setPixmap(pixmap.scaledToWidth(32, Qt::SmoothTransformation));

    connect(ui->btnRoulette, &QPushButton::clicked, [=]{
        this->seedRoulette(0);
    });
    connect(ui->btnCopy, &QPushButton::clicked, [this]{
        Utils::copyToClipboard(m_seed.mnemonic.join(" "));
    });
    connect(ui->btnOptions, &QPushButton::clicked, this, &PageWalletSeed::onOptionsClicked);
}

void PageWalletSeed::initializePage() {
    this->generateSeed();
    this->setTitle(m_fields->modeText);
}

void PageWalletSeed::seedRoulette(int count) {
    count += 1;
    if (count > m_rouletteSpin)
        return;

    this->generateSeed();

    QTimer::singleShot(10, [=] {
        this->seedRoulette(count);
    });
}

void PageWalletSeed::generateSeed() {
    QString mnemonic;

    m_seed = Seed(Seed::Type::POLYSEED, constants::networkType);
    mnemonic = m_seed.mnemonic.join(" ");
    m_restoreHeight = m_seed.restoreHeight;

    this->displaySeed(mnemonic);

    if (!m_seed.errorString.isEmpty()) {
        ui->frame_invalidSeed->show();
        ui->frame_seedDisplay->hide();
        m_seedError = true;
    }
}

void PageWalletSeed::displaySeed(const QString &seed){
    QStringList seedSplit = seed.split(" ");

    ui->seedWord1->setText(seedSplit[0]);
    ui->seedWord2->setText(seedSplit[1]);
    ui->seedWord3->setText(seedSplit[2]);
    ui->seedWord4->setText(seedSplit[3]);
    ui->seedWord5->setText(seedSplit[4]);
    ui->seedWord6->setText(seedSplit[5]);
    ui->seedWord7->setText(seedSplit[6]);
    ui->seedWord8->setText(seedSplit[7]);
    ui->seedWord9->setText(seedSplit[8]);
    ui->seedWord10->setText(seedSplit[9]);
    ui->seedWord11->setText(seedSplit[10]);
    ui->seedWord12->setText(seedSplit[11]);
    ui->seedWord13->setText(seedSplit[12]);
    ui->seedWord14->setText(seedSplit[13]);
    ui->seedWord15->setText(seedSplit[14]);
    ui->seedWord16->setText(seedSplit[15]);
}

void PageWalletSeed::onOptionsClicked() {
    QDialog dialog(this);
    dialog.setWindowTitle("Options");
    QVBoxLayout layout;
    QCheckBox checkbox("Extend this seed with a passphrase");
    checkbox.setChecked(m_fields->showSetSeedPassphrasePage);
    layout.addWidget(&checkbox);
    QDialogButtonBox buttons(QDialogButtonBox::Ok);
    layout.addWidget(&buttons);
    dialog.setLayout(&layout);
    connect(&buttons, &QDialogButtonBox::accepted, [&dialog]{
        dialog.close();
    });
    dialog.exec();
    m_fields->showSetSeedPassphrasePage = checkbox.isChecked();
}

int PageWalletSeed::nextId() const {
    if (m_fields->showSetSeedPassphrasePage) {
        return WalletWizard::Page_SetSeedPassphrase;
    }
    return WalletWizard::Page_WalletFile;
}

bool PageWalletSeed::validatePage() {
    if (m_seed.mnemonic.isEmpty()) return false;
    if (!m_restoreHeight) return false;

    QMessageBox seedWarning(this);
    seedWarning.setWindowTitle("Warning!");
    seedWarning.setText("• Never disclose your seed\n"
                        "• Never type it on a website\n"
                        "• Store it safely (offline)\n"
                        "• Do not lose your seed!");
    auto btn_goBack = seedWarning.addButton("Go back", QMessageBox::RejectRole);
    seedWarning.addButton("I understand", QMessageBox::AcceptRole);

    seedWarning.exec();
    if (seedWarning.clickedButton() == btn_goBack) {
        return false;
    }

    m_fields->seed = m_seed;

    return true;
}

bool PageWalletSeed::isComplete() const {
    return !m_seedError;
}