/*
 * This file is part of sdbclient
 * Copyright (C) 2022 Jonni Liljamo <jonni@liljamo.com>
 *
 * Licensed under GPL-3.0-only.
 * See LICENSE for licensing information.
 */

use bevy::prelude::*;
use bevy_inspector_egui::bevy_egui::{egui, EguiContext};
use iyes_loopless::prelude::*;

use crate::util::eguipwd;

use crate::plugins::menu::MenuState;

use super::RegisterState;

/// Register inputs
#[derive(Resource, Debug, Component, PartialEq, Eq, Clone)]
pub struct InputsUserRegister {
    pub username: String,
    pub email: String,
    pub password: String,
    pub password_confirm: String,
    pub passwords_match: bool,
    pub error: String,
}

impl InputsUserRegister {
    pub fn new() -> Self {
        Self {
            username: "".to_string(),
            email: "".to_string(),
            password: "".to_string(),
            password_confirm: "".to_string(),
            passwords_match: true,
            error: "".to_string(),
        }
    }
}

pub fn account_register_ui(
    mut commands: Commands,
    mut egui_context: ResMut<EguiContext>,
    mut inputs: ResMut<InputsUserRegister>,
) {
    egui::Window::new("Register")
        .collapsible(false)
        .anchor(egui::Align2::CENTER_CENTER, egui::Vec2::ZERO)
        .show(egui_context.ctx_mut(), |ui| {
            ui.horizontal(|ui| {
                ui.label("Username: ");
                ui.text_edit_singleline(&mut inputs.username);
            });

            ui.horizontal(|ui| {
                ui.label("Email: ");
                ui.text_edit_singleline(&mut inputs.email);
            });

            ui.horizontal(|ui| {
                ui.label("Password: ");
                ui.add(eguipwd::password(&mut inputs.password));
            });

            ui.horizontal(|ui| {
                ui.label("Confirm password: ");
                ui.add(eguipwd::password(&mut inputs.password_confirm));
            });

            inputs.passwords_match = inputs.password == inputs.password_confirm;

            // Show an error if there is one
            if !inputs.passwords_match {
                ui.horizontal(|ui| {
                    ui.label(
                        egui::RichText::new("passwords don't match").color(egui::Color32::RED),
                    );
                });
            } else if !inputs.error.is_empty() {
                ui.horizontal(|ui| {
                    ui.label(egui::RichText::new(inputs.error.clone()).color(egui::Color32::RED));
                });
            }

            ui.with_layout(egui::Layout::right_to_left(egui::Align::Min), |ui| {
                if ui.button("Cancel").clicked() {
                    commands.insert_resource(NextState(RegisterState::None));
                    commands.insert_resource(NextState(MenuState::AccountLoggedOut));
                }

                ui.add_enabled_ui(inputs.passwords_match, |ui| {
                    if ui.button("Register").clicked() {
                        commands.insert_resource(NextState(RegisterState::Registering));
                        // Reset error field
                        inputs.error = "".to_string();
                    }
                });
            })
        });
}