use crate::{
    collision::Collider,
    damagable::Damagable,
    projectile::{ProjectileSprite, spawn_projectile},
    ships::Factions,
    velocity::Velocity,
};
use bevy::prelude::*;

#[derive(Component)]
#[require(Velocity)]
pub struct PlayerMovement {
    pub(super) acceleration: f32,
}

#[derive(Component)]
pub struct PlayerGun {
    shoot_timer: Timer,
    damage: u32,
}

pub fn spawn_player(commands: &mut Commands, sprite: Handle<Image>, at: Vec2) {
    commands.spawn((
        PlayerMovement { acceleration: 100. },
        PlayerGun {
            shoot_timer: Timer::from_seconds(0.2, TimerMode::Once),
            damage: 1,
        },
        Collider::new(8.),
        Sprite::from(sprite),
        Transform::from_xyz(at.x, at.y, 0.),
        Factions::PlayerFaction,
        Damagable::new(15),
    ));
}

pub(super) fn player_movement_system(
    time: Res<Time>,
    keyboard_input: Res<ButtonInput<KeyCode>>,
    query: Single<(&mut Velocity, &PlayerMovement)>,
) {
    let (mut movable, player) = query.into_inner();
    let mut movement_factor = 0.0;
    let mut rotation_factor = 0.0;

    if keyboard_input.pressed(KeyCode::ArrowLeft) {
        rotation_factor += 1.0;
    }

    if keyboard_input.pressed(KeyCode::ArrowRight) {
        rotation_factor -= 1.0;
    }

    if keyboard_input.pressed(KeyCode::ArrowUp) {
        movement_factor += 1.0;
    }
    if keyboard_input.pressed(KeyCode::ArrowDown) {
        movement_factor -= 1.0;
    }

    movable.linear_speed = (movable.linear_speed
        + movement_factor * player.acceleration * time.delta_secs())
    .clamp(-movable.max_linear_speed, movable.max_linear_speed);
    movable.rotation_speed = rotation_factor * movable.max_rotation_speed;
}

pub fn player_shooting_system(
    mut commands: Commands,
    time: Res<Time>,
    keyboard_input: Res<ButtonInput<KeyCode>>,
    projectile_sprite: Res<ProjectileSprite>,
    query: Single<(&mut PlayerGun, &Transform)>,
) {
    let (mut gun, transform) = query.into_inner();
    gun.shoot_timer.tick(time.delta());

    if gun.shoot_timer.is_finished() == false || keyboard_input.pressed(KeyCode::Space) == false {
        return;
    }

    spawn_projectile(
        &mut commands,
        projectile_sprite,
        transform.clone(),
        gun.damage,
        Factions::PlayerFaction,
    );

    gun.shoot_timer.reset();
}