//
// Created by selim on 03.01.2022.
//

#include "LoginWindow.h"
#include "MainWindow.h"
#include "../services/Api.h"

#include <gtkmm/application.h>
#include <gtkmm/box.h>
#include <iostream>

LoginWindow::LoginWindow() {
    set_title("Login");
    set_default_size(640, 480);

    _emailField.set_placeholder_text("Email");
    _passwordField.set_placeholder_text("Password");
    _passwordField.set_input_purpose(Gtk::InputPurpose::PASSWORD);
    _passwordField.set_visibility(false);

    _emailField.signal_changed().connect(sigc::mem_fun(*this, &LoginWindow::validateFields));
    _passwordField.signal_changed().connect(sigc::mem_fun(*this, &LoginWindow::validateFields));

    _loginButton.set_margin_top(8);
    _loginButton.set_margin_bottom(8);
    _loginButton.set_label("Log in");
    _loginButton.signal_clicked().connect(sigc::mem_fun(*this, &LoginWindow::loginClicked));
    _loginButton.set_sensitive(false);

    Gtk::Box box(Gtk::Orientation::VERTICAL, 8);
    box.set_margin(48);
    box.set_valign(Gtk::Align::CENTER);

    box.append(_emailField);
    box.append(_passwordField);
    box.append(_loginButton);
    box.append(_spinner);

    set_child(box);
}

void LoginWindow::loginClicked() {
    auto email = _emailField.get_text();
    auto password = _passwordField.get_text();

    enableControls(false);
    _spinner.start();

    try {
        auto user = co_await Api::login(email, password);
        auto app = this->get_application();
        auto mainWindow = new MainWindow();
        mainWindow->show();
        hide();
        app->add_window(*mainWindow);
        app->remove_window(*this);
    } catch (std::exception& ex) {
        enableControls(true);
        _spinner.stop();
        showError(ex.what());
    }
}

void LoginWindow::validateFields() {
    bool buttonEnabled = _emailField.get_text_length() > 0 && _passwordField.get_text_length() > 0;
    _loginButton.set_sensitive(buttonEnabled);
}

void LoginWindow::showError(const std::string& message) {
    _dialog = std::make_unique<Gtk::MessageDialog>("Error",
                                                   false,
                                                   Gtk::MessageType::ERROR,
                                                   Gtk::ButtonsType::OK,
                                                   true);
    _dialog->set_secondary_text(message);
    _dialog->set_transient_for(*this);
    _dialog->set_hide_on_close(true);
    _dialog->signal_response().connect(sigc::hide(sigc::mem_fun(*_dialog, &Gtk::Widget::hide)));
    _dialog->show();
}

void LoginWindow::enableControls(bool enable) {
    _loginButton.set_sensitive(enable);
    _emailField.set_sensitive(enable);
    _passwordField.set_sensitive(enable);
}