using System;
using System.Collections.Generic;
using Reset.Units;
using UnityEngine;

public class UnitCombat : MonoBehaviour{
    public List<Collider> draggedUnits = new List<Collider>();

    private UnitMovementHandler movement;

    private Vector3 lastPosition;
    private Vector3 positionDelta;

    private float lastSpeed;
    private float speedDelta;
    
    void Awake(){
        movement = GetComponent<UnitMovementHandler>();
    }

    void Start(){
        lastPosition = transform.position;
    }

    // Update is called once per frame
    void Update(){
        positionDelta = lastPosition.DirectionTo(transform.position);
        speedDelta = Vector3.Distance(lastPosition, transform.position);
            
        lastPosition = transform.position;

        foreach (Collider draggedUnit in draggedUnits) {
            UnitMovementHandler draggedUnitMovement = draggedUnit.GetComponent<UnitMovementHandler>();
            if (!draggedUnitMovement) {
                Debug.LogError($"No available UnitMovement on {draggedUnit.name}. Aborting drag on this unit.");
                continue;
            }
            
            draggedUnitMovement.SetNewDirection((transform.rotation* positionDelta).ToVector2(), 1f, true);
            draggedUnitMovement.SetNewSpeed(speedDelta, 1f, true);
            draggedUnitMovement.SetNewRotation(Quaternion.LookRotation(transform.position.DirectionTo(draggedUnit.transform.position)), 1f, true);
        }
    }
}