using System;
using Unity.VisualScripting;
using UnityEngine;
using Random = UnityEngine.Random;

public class Enemy : Entity
{
    public static event Action<Entity> OnKill;
    [Header("Enemy Stats")]
    public int turnSpeed;
    public float minimumAttackRange;
    private PlayerEntity closestPlayer;
    //no weapons yet for enemies so...
    public float damage;
    void Start()
    {
        turnSpeed = Random.Range(0, 100);
    }

    [ContextMenu("ForceTurn")]
    public void StartTurn()
    {
        closestPlayer = FindClosestPlayer();
        if (Vector3.Distance(transform.position, closestPlayer.transform.position) > minimumAttackRange)
        {
            EnemyMovement.instance.PathfindToTarget(GridManager.instance.FindClosestEmptyTile(closestPlayer.currentTile.neighbors[Random.Range(0, closestPlayer.currentTile.neighbors.Count)]), this);
        }
        else
        {
            Attack(closestPlayer);
            TurnHandler.instance.UpdateTurns();
        }
    }

    protected override void FinishedMovement()
    {
        base.FinishedMovement();
        TurnHandler.instance.UpdateTurns();
    }

    private PlayerEntity FindClosestPlayer()
    {
        PlayerEntity currentClosestPlayer = null;
        foreach (PlayerEntity player in TurnHandler.instance.playerEntities)
        {
            if (!currentClosestPlayer || Vector3.Distance(player.transform.position, transform.position) < Vector3.Distance(currentClosestPlayer.transform.position, transform.position))
            {
                currentClosestPlayer = player;
            }
        }
        return currentClosestPlayer;
    }
    protected override void OnKillEffects(Entity attacker)
    {
        TurnHandler.instance.enemyEntities.Remove(this);
        OnKill?.Invoke(attacker);
        Destroy(gameObject);
    }
    public void Attack(PlayerEntity target)
    {
        target.TakeDamage(damage, this);
    }
}