using System;
using System.Collections;
using System.Collections.Generic;
using DG.Tweening;
using UnityEngine;

public class Card : MonoBehaviour
{
    // ========= serializeField ========
    [SerializeField] private int coast = 9;

    // ========= private =========
    // ***************************

    // ***************************
    private int ID;
    private Canvas canvas;
    private SpriteRenderer sprite_renderer;
    private bool is_drag = false;

    // ========= Hover Message =========
    private readonly Vector3 hover_position = Vector3.zero;
    private readonly Quaternion hover_rotation = Quaternion.identity;
    private const int hover_layer_sort_order = 100;
    private readonly float hover_duration = 0.15f;

    private struct CardStatus
    {
        public Vector3 POSITION;
        public Quaternion ROTATION;
        public Vector3 SCALE;
        public int SORTING_ORDER;
    }

    private CardStatus card_status = new CardStatus();

    // ========= debug =========
    private readonly Vector3 debug_draw_position = Vector3.zero;

    //  ****************************
    //  ========= private  =========
    private void Awake()
    {
        sprite_renderer = GetComponent<SpriteRenderer>();
        canvas = transform.Find("Canvas").GetComponent<Canvas>();
        if (canvas.renderMode == RenderMode.WorldSpace && canvas.worldCamera == null)
        {
            canvas.worldCamera = Camera.main;
        }

        card_status.SCALE = transform.localScale;
        transform.localScale = Vector3.zero;
        REGISTER_EVENT();
    }

    private void OnDestroy()
    {
        UNREGISTER_EVENT();
    }

    public void SetID(int id) => ID = id;


    private void REGISTER_EVENT()
    {
        register_draw_card();
        register_drop_card();
    }

    private void UNREGISTER_EVENT()
    {
        register_drop_card(false);
        register_draw_card(false);
    }

    // ******* Mouse ***********
    private void OnMouseDrag()
    {
        if (is_drag) return;
        if (CombatScenarioEventOS.Instance.LOCK_GET(EVENT_EXCLUSIVE_LOCK.LOCK_I_DRAG_CARD) && !is_drag) return;
        if (!CombatScenarioEventOS.Instance.LOCK_APPLY(EVENT_EXCLUSIVE_LOCK.LOCK_I_DRAG_CARD)) return;
        Sequence seq = DOTween.Sequence();
        seq.Join(transform.DOMove(hover_position, hover_duration));
        seq.Join(transform.DOScale(card_status.SCALE * 2f, hover_duration));
        seq.Join(transform.DORotateQuaternion(hover_rotation, hover_duration));
        sprite_renderer.sortingOrder = hover_layer_sort_order;
        canvas.sortingOrder = hover_layer_sort_order + 1;
        is_drag = true;
    }

    private void OnMouseUp()
    {
        Sequence seq = DOTween.Sequence();
        seq.Join(transform.DOMove(card_status.POSITION, hover_duration));
        seq.Join(transform.DOScale(card_status.SCALE, hover_duration));
        seq.Join(transform.DORotateQuaternion(card_status.ROTATION, hover_duration));
        seq.OnComplete(() =>
        {
            CombatScenarioEventOS.Instance.LOCK_RELEASE(EVENT_EXCLUSIVE_LOCK.LOCK_I_DRAG_CARD);
            is_drag = false;
        });
        sprite_renderer.sortingOrder = card_status.SORTING_ORDER;
        canvas.sortingOrder = card_status.SORTING_ORDER + 1;
    }
    // **************************

    private void register_draw_card(bool is_register = true) // 注册发牌事件
    {
        if (is_register)
            CombatScenarioEventOS.Instance.EVENT_REGISTER<EVENT_STRUCT.STRUCT_EVENT_CARD_DRAW_CARD>
                (EVENT_ENUM.EVENT_LET_CARD_DRAW_CARD, callback);
        else
            CombatScenarioEventOS.Instance.EVENT_UNREGISTER<EVENT_STRUCT.STRUCT_EVENT_CARD_DRAW_CARD>
                (EVENT_ENUM.EVENT_LET_CARD_DRAW_CARD, callback);

        return;

        void callback(EVENT_STRUCT.STRUCT_EVENT_CARD_DRAW_CARD args)
        {
            if (args.METHOD != EVENT_METHODS.POST)
            {
                Debug.LogError($"消息回调失败: [{args.GetType()}], 不允许的消息类型: {args.METHOD}");
                return;
            }

            if (args.ID != ID) return; // 不接受其他ID的卡牌以及其他消息
            Vector3 move_position = args.POSITION;
            Quaternion rotation = args.ROTATION;
            float duration = args.DURATION;
            int layer_sort_order = args.LAYER_SORT_ORDER;
            move_position.z = -layer_sort_order * 0.5f;
            sprite_renderer.sortingOrder = layer_sort_order * 2;
            canvas.sortingOrder = layer_sort_order * 2 + 1;
            Sequence seq = DOTween.Sequence();
            seq.Join(transform.DOMove(move_position, duration));
            seq.Join(transform.DOScale(card_status.SCALE, duration));
            seq.Join(transform.DORotateQuaternion(rotation, duration));
            seq.OnComplete(() =>
            {
                // 记录默认数值
                card_status.POSITION = move_position;
                card_status.ROTATION = rotation;
                card_status.SORTING_ORDER = layer_sort_order * 2;
            });
        }
    }

    private void register_drop_card(bool is_register = true) // 注册弃牌事件
    {
        if (is_register)
            CombatScenarioEventOS.Instance.EVENT_REGISTER<EVENT_STRUCT.STRUCT_EVENT_CARD_DROP_CARD>
                (EVENT_ENUM.EVENT_LET_CARD_DROP_SELF, callback);
        else
            CombatScenarioEventOS.Instance.EVENT_UNREGISTER<EVENT_STRUCT.STRUCT_EVENT_CARD_DROP_CARD>
                (EVENT_ENUM.EVENT_LET_CARD_DROP_SELF, callback);

        return;

        void callback(EVENT_STRUCT.STRUCT_EVENT_CARD_DROP_CARD args)
        {
            if (args.METHOD != EVENT_METHODS.DELETE)
            {
                Debug.LogError($"消息回调失败: [{args.GetType()}], 不允许的消息类型: {args.METHOD}");
                return;
            }

            if (args.ID != ID) return; // 不接受其他ID的卡牌以及其他消息
            float duration_scale = args.DURATION / 3f;
            float duration_move = args.DURATION - duration_scale;
            Sequence seq = DOTween.Sequence();
            seq.Append(transform.DOScale(new Vector3(0.05f, 0.05f, 0.05f), duration_scale));
            seq.Append(DOTween.Sequence()
                .Join(transform.DOMove(args.POSITION, duration_move))
                .Join(transform.DORotateQuaternion(Quaternion.identity, duration_move)));
            seq.OnComplete(() => { Destroy(gameObject); });
        }
    }
}