use bevy::prelude::*;
use bevy_rapier2d::prelude::*;

use crate::{
    meters,
    inventory::Inventory,
    item::lockpick::Lockpick,
    player::Player,
};

use super::*;

#[derive(Component, Debug, PartialEq, Eq, Default, Clone, Copy, Reflect)]
#[reflect(Component, Debug, PartialEq, Default, Clone)]
#[require(InteractiveObject)]
pub struct Padlock;

pub fn on_padlock_interaction(
    event: On<InteractionEvent>,
    mut commands: Commands,
    query: Query<(&ChildOf, Entity), With<Padlock>>,
    inventory_query: Query<(&Children, &ChildOf), With<Inventory>>,
    player_query: Query<(), With<Player>>,
    lockpick_query: Query<(), With<Lockpick>>,
) {
    let Ok((parent, lock_id)) = query.get(event.entity) else {
        return;
    };

    // find lockpick in player inventory
    let mut lockpick_id = None;
    for (items, inventory_parent) in inventory_query {
        if player_query.get(inventory_parent.0).is_err() {
            continue;
        }
        for item_id in items {
            if lockpick_query.get(*item_id).is_ok() {
                lockpick_id = Some(*item_id);
                break;
            }
        }
    };
    let Some(lockpick_id) = lockpick_id else {
        return;
    };

    commands.entity(parent.0).remove::<Locked>();
    commands.entity(lock_id).despawn();
    commands.entity(lockpick_id).despawn();
}

pub fn padlock_bundle(textures: &Res<LayoutTextures>, facing_left: bool) -> impl Bundle {
    let sign = if facing_left { -1. } else { 1. };
    (
        Padlock,
        Sprite {
            flip_x: !facing_left,
            ..textures.lock.sprite("main")
        },
        Transform::from_xyz(meters(sign * 0.125), meters(0.), 0.),
        InheritedVisibility::VISIBLE,
        Children::spawn((
            Spawn((
                Transform::from_xyz(meters(sign * 0.1875), 0., 0.),
                Collider::cuboid(meters(0.1875), meters(1.)),
                Sensor,
            )),
            Spawn((
                Sprite {
                    flip_x: !facing_left,
                    ..textures.lock.sprite("highlight")
                },
                Visibility::Hidden,
            )),
        )),
    )
}