/*
 * This file is part of laurelin/client
 * Copyright (C) 2023 Jonni Liljamo <jonni@liljamo.com>
 *
 * Licensed under GPL-3.0-only.
 * See LICENSE for licensing information.
 */

use bevy::ecs::{system::ResMut, system::Resource};
use bevy_inspector_egui::bevy_egui::{egui, EguiContext};

use crate::util::egui::{menuwindow, password};

#[derive(Default, Resource)]
pub struct ConnectScreenData {
    pub state: ConnectState,
    pub username: String,
    pub email: String,
    pub password: String,
    pub password_confirm: String,
    pub error: String,
}

#[derive(Default)]
pub enum ConnectState {
    #[default]
    Login,
    LoggingIn,
    Register,
    Registering,
}

pub fn ui(mut egui_context: ResMut<EguiContext>, mut data: ResMut<ConnectScreenData>) {
    menuwindow(
        egui_context.ctx_mut(),
        "Connect",
        &egui::Vec2::new(400., 600.),
        |ui| {
            match data.state {
                ConnectState::Login => {
                    ui.horizontal(|ui| {
                        ui.label("Email:");
                        ui.text_edit_singleline(&mut data.email)
                    });
                    ui.horizontal(|ui| {
                        ui.label("Password:");
                        ui.add(password(&mut data.password));
                    });

                    if !data.error.is_empty() {
                        ui.label(egui::RichText::new(&data.error).color(egui::Color32::RED));
                    }

                    ui.with_layout(egui::Layout::right_to_left(egui::Align::TOP), |ui| {
                        if ui.button("Login").clicked() {
                            data.error.clear();
                            // yoink
                        }
                    });

                    ui.vertical_centered(|ui| {
                        ui.label("I don't have an account:");
                        if ui.link("Register").clicked() {
                            *data = ConnectScreenData::default();
                            data.state = ConnectState::Register;
                        }
                    });
                }
                ConnectState::Register => {
                    ui.horizontal(|ui| {
                        ui.label("Username:");
                        ui.text_edit_singleline(&mut data.username)
                    });
                    ui.horizontal(|ui| {
                        ui.label("Email:");
                        ui.text_edit_singleline(&mut data.email)
                    });
                    ui.horizontal(|ui| {
                        ui.label("Password:");
                        ui.add(password(&mut data.password));
                    });
                    ui.horizontal(|ui| {
                        ui.label("Confirm password:");
                        ui.add(password(&mut data.password_confirm));
                    });

                    if !data.error.is_empty() {
                        ui.label(egui::RichText::new(&data.error).color(egui::Color32::RED));
                    }

                    ui.add_enabled_ui(data.password == data.password_confirm, |ui| {
                        ui.with_layout(egui::Layout::right_to_left(egui::Align::TOP), |ui| {
                            if ui.button("Register").clicked() {
                                data.error.clear();
                                // yoink
                            }
                        });
                    });

                    ui.vertical_centered(|ui| {
                        ui.label("I have an account:");
                        if ui.link("Login").clicked() {
                            *data = ConnectScreenData::default();
                            data.state = ConnectState::Login;
                        }
                    });
                }
                _ => {
                    ui.spinner();
                }
            }
        },
    );
}