// SPDX-FileCopyrightText: 2017 Citra Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#include <QIcon>
#include <QMessageBox>
#include <QtConcurrent/QtConcurrentRun>
#include "common/settings.h"
#include "ui_configure_web.h"
#include "yuzu/configuration/configure_web.h"
#include "yuzu/uisettings.h"

// static constexpr char token_delimiter{':'};

// static std::string GenerateDisplayToken(const std::string& username, const std::string& token) {
//     if (username.empty() || token.empty()) {
//         return {};
//     }

//     const std::string unencoded_display_token{username + token_delimiter + token};
//     QByteArray b{unencoded_display_token.c_str()};
//     QByteArray b64 = b.toBase64();
//     return b64.toStdString();
// }

// static std::string UsernameFromDisplayToken(const std::string& display_token) {
//     const std::string unencoded_display_token{
//         QByteArray::fromBase64(display_token.c_str()).toStdString()};
//     return unencoded_display_token.substr(0, unencoded_display_token.find(token_delimiter));
// }

// static std::string TokenFromDisplayToken(const std::string& display_token) {
//     const std::string unencoded_display_token{
//         QByteArray::fromBase64(display_token.c_str()).toStdString()};
//     return unencoded_display_token.substr(unencoded_display_token.find(token_delimiter) + 1);
// }

ConfigureWeb::ConfigureWeb(QWidget* parent)
    : QWidget(parent), ui(std::make_unique<Ui::ConfigureWeb>()) {
    ui->setupUi(this);
    connect(ui->button_verify_login, &QPushButton::clicked, this, &ConfigureWeb::VerifyLogin);
    connect(&verify_watcher, &QFutureWatcher<bool>::finished, this, &ConfigureWeb::OnLoginVerified);

#ifndef USE_DISCORD_PRESENCE
    ui->discord_group->setVisible(false);
#endif

    SetConfiguration();
    RetranslateUI();
}

ConfigureWeb::~ConfigureWeb() = default;

void ConfigureWeb::changeEvent(QEvent* event) {
    if (event->type() == QEvent::LanguageChange) {
        RetranslateUI();
    }

    QWidget::changeEvent(event);
}

void ConfigureWeb::RetranslateUI() {
    ui->retranslateUi(this);

    ui->web_signup_link->setText(
        tr("<a href='https://profile.yuzu-emu.org/'><span style=\"text-decoration: underline; "
           "color:#039be5;\">Sign up</span></a>"));

    ui->web_token_info_link->setText(
        tr("<a href='https://evilperson1337.notion.site/Hosting-a-Room-Inside-of-Eden-20457c2edaf680108abac6215a79acdb'><span style=\"text-decoration: "
           "underline; color:#039be5;\">What is my token?</span></a>"));
}

void ConfigureWeb::SetConfiguration() {
    ui->web_credentials_disclaimer->setWordWrap(true);

    ui->web_signup_link->setOpenExternalLinks(true);
    ui->web_token_info_link->setOpenExternalLinks(true);

    ui->edit_username->setText(QString::fromStdString(Settings::values.yuzu_username.GetValue()));
    ui->edit_token->setText(QString::fromStdString(Settings::values.yuzu_token.GetValue()));
    // ui->edit_token->setText(QString::fromStdString(GenerateDisplayToken(
    //     Settings::values.yuzu_username.GetValue(), Settings::values.yuzu_token.GetValue())));

    // Connect after setting the values, to avoid calling OnLoginChanged now
    connect(ui->edit_token, &QLineEdit::textChanged, this, &ConfigureWeb::OnLoginChanged);

    user_verified = true;

    ui->toggle_discordrpc->setChecked(UISettings::values.enable_discord_presence.GetValue());
}

void ConfigureWeb::ApplyConfiguration() {
    UISettings::values.enable_discord_presence = ui->toggle_discordrpc->isChecked();
    Settings::values.yuzu_username = ui->edit_username->text().toStdString();
    Settings::values.yuzu_token = ui->edit_token->text().toStdString();
}

void ConfigureWeb::OnLoginChanged() {
    if (ui->edit_token->text().isEmpty()) {
        user_verified = true;
        // Empty = no icon
        ui->label_token_verified->setPixmap(QPixmap());
        ui->label_token_verified->setToolTip(QString());
    } else {
        user_verified = false;

        // Show an info icon if it's been changed, clearer than showing failure
        const QPixmap pixmap = QIcon::fromTheme(QStringLiteral("info")).pixmap(16);
        ui->label_token_verified->setPixmap(pixmap);
        ui->label_token_verified->setToolTip(
            tr("Unverified, please click Verify before saving configuration", "Tooltip"));
    }
}

void ConfigureWeb::VerifyLogin() {
    QMessageBox::warning(this,
                         tr("Warning"),
                         tr("Verification is currently nonfunctional, instead generate a random "
                            "48-character string with only lowercase a-z."));
    // ui->button_verify_login->setDisabled(true);
    // ui->button_verify_login->setText(tr("Verifying..."));
    // ui->label_token_verified->setPixmap(QIcon::fromTheme(QStringLiteral("sync")).pixmap(16));
    // ui->label_token_verified->setToolTip(tr("Verifying..."));
}

void ConfigureWeb::OnLoginVerified() {
    // ui->button_verify_login->setEnabled(true);
    // ui->button_verify_login->setText(tr("Verify"));
    // if (verify_watcher.result()) {
    //     user_verified = true;

    //     ui->label_token_verified->setPixmap(QIcon::fromTheme(QStringLiteral("checked")).pixmap(16));
    //     ui->label_token_verified->setToolTip(tr("Verified", "Tooltip"));
    //     ui->username->setText(
    //         QString::fromStdString(UsernameFromDisplayToken(ui->edit_token->text().toStdString())));
    // } else {
    //     ui->label_token_verified->setPixmap(QIcon::fromTheme(QStringLiteral("failed")).pixmap(16));
    //     ui->label_token_verified->setToolTip(tr("Verification failed", "Tooltip"));
    //     ui->username->setText(tr("Unspecified"));
    //     QMessageBox::critical(this, tr("Verification failed"),
    //                           tr("Verification failed. Check that you have entered your token "
    //                              "correctly, and that your internet connection is working."));
    // }
}

void ConfigureWeb::SetWebServiceConfigEnabled(bool enabled) {
    ui->label_disable_info->setVisible(!enabled);
    ui->groupBoxWebConfig->setEnabled(enabled);
}