use bevy::ecs::entity::MapEntities;
use crate::prelude::*;
use serde::{Deserialize, Serialize};
use std::ops::Deref;

#[derive(Component, Serialize, Deserialize)]
/// The primary component for a ship structure
pub struct Ship;

#[derive(Component, Serialize, Deserialize, MapEntities)]
#[relationship_target(relationship = PartInShip, linked_spawn)]
pub struct Parts(#[entities] Vec<Entity>);

#[derive(Component, Serialize, Deserialize, MapEntities)]
#[relationship(relationship_target = Parts)]
pub struct PartInShip(#[entities] pub Entity);

#[derive(Component, Serialize, Deserialize)]
#[require(Transform)]
pub struct Joint {
    pub id: JointId,
    pub transform: Transform,
}
#[derive(Component, Serialize, Deserialize, MapEntities)]
pub struct Peer {
    #[entities]
    pub peer_joint_entity_id: Entity,
    pub processed: bool,
    #[entities]
    pub physics_joint: Entity
}

#[derive(Component, Serialize, Deserialize, MapEntities)]
#[relationship(relationship_target = Joints)]
pub struct JointOf(#[entities] pub Entity);
#[derive(Component, Serialize, Deserialize, MapEntities, Debug)]
#[relationship_target(relationship = JointOf)]
pub struct Joints(#[entities] Vec<Entity>);
impl Deref for Joints {
    type Target = Vec<Entity>;
    fn deref(&self) -> &Self::Target {
        &self.0
    }
}
#[derive(Component, Serialize, Deserialize, MapEntities)]
#[relationship(relationship_target = Snaps)]
pub struct SnapOf(#[entities] pub Entity);
#[derive(Component, Serialize, Deserialize, MapEntities)]
#[relationship_target(relationship = SnapOf)]
pub struct Snaps(#[entities] Vec<Entity>);
impl Deref for Snaps {
    type Target = Vec<Entity>;

    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

#[derive(Serialize, Deserialize, PartialEq, Eq, Clone)]
pub struct JointId(pub String);
impl JointId {
    #[must_use]
    pub fn from_part_and_joint_id(part: impl AsRef<str>, joint: impl AsRef<str>) -> Self {
        Self(format!("{}:{}", part.as_ref(), joint.as_ref()))
    }
}

#[derive(Serialize, Deserialize, Component, MapEntities)]
pub struct SnapOfJoint(#[entities] pub Entity);