using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class TurnHandlerDropCard : MonoBehaviour
{
    // ======== serializeField ========
    [SerializeField] private RectTransform dropCardPlace;
    [SerializeField] private Camera mainCamera;

    // ======== private ========
    private Vector3 drop_card_point_world_position;
    private TurnEventManagement turnManager;
    private TurnSingleton turnSingleton;

    private void Awake()
    {
        turnManager = GetComponent<TurnEventManagement>();
        turnSingleton = TurnSingleton.Instance;
    }

    private void Start()
    {
        if (mainCamera == null) mainCamera = Camera.main;
        RectTransformUtility.ScreenPointToWorldPointInRectangle(
            rect: dropCardPlace,
            screenPoint: dropCardPlace.position,
            cam: mainCamera,
            out drop_card_point_world_position);
    }

    public void DropCard(float cardDropDuration) // 系统弃牌
    {
        if (!turnSingleton.VerificationSystemStatus(turnManager.GetState(), TURN_OS_STATE.EXIT_SELF_TURN)) return;
        if (!turnSingleton.VerificationActionStatus(turnManager.GetActionState(), TURN_ACTION_STATE.DROP_REQUEST)) return;
        turnManager.SetActionState(TURN_ACTION_STATE.DROP_RUNNING);
        StartCoroutine(coroutine());
        return;


        IEnumerator coroutine()
        {
            if (turnManager.GetHandCardCount() > 0)
            {
                for (var i = 0; i < turnManager.GetHandCardCount(); i++)
                {
                    turnManager.GetHandCard(i).DropCard(
                        new STRUCT_TURN_CARD.LET_CARD_DROP_SELF
                        {
                            METHOD = RequestsMethods.DELETE,
                            ID = i,
                            POSITION = drop_card_point_world_position,
                            DURATION = cardDropDuration,
                        });
                    yield return new WaitForSeconds(cardDropDuration);
                }
            }

            turnManager.SetActionState(TURN_ACTION_STATE.WAIT);
            turnManager.FlushHandCard();
            turnManager.EnterEnemyTurn();
        }
    }
}