using System;
using System.Collections;
using Game;
using Sound;
using UnityEngine;
using UnityEngine.UI;

namespace Comp
{
    public class CockActionComp : MonoBehaviour
    {
        private static readonly Color HpGreen = new Color(0.06f, 0.9f, 0.18f);
        private static readonly Color HpYellow = new Color(0.9f, 0.9f, 0.18f);
        private static readonly Color HpRed = new Color(0.9f, 0.18f, 0.18f);

        private const string CockTag = "cock";

        private ICockController _cockController;

        // 血量条组件
        private Image _backgroundImage, _foregroundImage;

        private int _maxHp, _curHp;

        public int reduceHp; // 需要扣除的Hp

        public int MaxHp
        {
            set
            {
                _maxHp = value;
                _curHp = _maxHp;
            }
        }

        private void ReduceCurHp(int hp)
        {
            _curHp -= hp;
            var hpPercent = (float)_curHp / _maxHp;
            if (hpPercent > 0.5f)
            {
                _foregroundImage.color = HpGreen;
            }
            else if (hpPercent is >= 0.25f and <= 0.5f)
            {
                _foregroundImage.color = HpYellow;
            }
            else
            {
                _foregroundImage.color = HpRed;
            }

            var backgroundSize = _backgroundImage.rectTransform.sizeDelta;
            var foregroundSize = _foregroundImage.rectTransform.sizeDelta;
            var newForegroundWidth = backgroundSize.x * hpPercent;
            _foregroundImage.rectTransform.sizeDelta = new Vector2(newForegroundWidth, foregroundSize.y);
        }

        // 跑步跟切换待机状态相关参数

        private bool _firstTrigger = true; // 第一次碰撞切换为待机

        private Vector3 _thrust;

        private const float MoveSpeed = 1f;

        // 锁定物体相关参数

        private float _miniY; // 最低Y坐标

        // 执行动作相关

        public Action curAction;

        private readonly WaitForSeconds _waitEverySecond = new WaitForSeconds(1f);

        // 水平与垂直方向运动相关

        private CockJumpData _lowData, _highData, _curData;

        public int playerId;

        public int cockId;

        public bool rightForward = false;

        // miss文本相关参数

        private GameObject _missPrefab;

        private bool _createMiss = false;

        public ICockController CockController
        {
            get
            {
                if (_cockController == null)
                {
                    _cockController = new AnimatorCockController(animator);
                    _cockController.OnRun += OnRun;
                    _cockController.OnIdle += OnIdle;
                    _cockController.OnAttack += OnAttack;
                    _cockController.OnJumpAttack += OnJumpAttack;
                    return _cockController;
                }

                return _cockController;
            }
        }

        public Animator animator;

        private void OnCollisionEnter(Collision collision)
        {
            if (collision.gameObject.CompareTag(CockTag) && _firstTrigger)
            {
                _firstTrigger = false;
                _cockController.IdleInBattle();
                GameCore.Instance.GetCurState().BattleStart();
            }
        }

        private void Start()
        {
            _missPrefab = Resources.Load<GameObject>("Prefab/prefab_miss");
            // 获取血条的填充图片
            var images = GetComponentsInChildren<Image>();
            foreach (var image in images)
            {
                if (image.name == "Background")
                {
                    _backgroundImage = image;
                }
                if (image.name == "Foreground")
                {
                    _foregroundImage = image;
                }
            }

            // 获取最低Y坐标
            _miniY = transform.position.y;
            // 跳跃相关
            _lowData = new CockJumpData(0.5f, 0.45f, false);
            _highData = new CockJumpData(1.0f, 0.3f, true);
            _curData = _highData;
            StartCoroutine(CallEverySeconds());
        }

        private IEnumerator CallEverySeconds()
        {
            while (true)
            {
                curAction?.Invoke();
                curAction = null;
                yield return _waitEverySecond;
            }
        }

        private void Update()
        {
            if (_createMiss)
            {
                _createMiss = false;
                CreateMissText();
            }

            if (reduceHp != 0)
            {
                ReduceCurHp(reduceHp);
                reduceHp = 0;
            }
        }

        private void FixedUpdate()
        {
            transform.Translate(_thrust * Time.deltaTime);

            // 移动游戏对象
            // if (GameCore.Instance.inBattleState)
            transform.position += _curData.GetJumpVector();
            if (GameCore.Instance.inBattleState)
            {
                if (rightForward)
                {
                    transform.position += _curData.GetMoveVector();
                }
                else
                {
                    transform.position -= _curData.GetMoveVector();
                }
            }

            if (transform.position.y < _miniY)
            {
                var position = transform.position;
                position = new Vector3(position.x, _miniY, position.z);
                transform.position = position;
            }
        }

        private void OnRun()
        {
            _thrust = new Vector3(0, 0, MoveSpeed);
        }

        private void OnIdle()
        {
            _thrust = new Vector3(0, 0, 0);
        }

        private void OnAttack()
        {
            _curData.StartMove();
        }

        private void OnJumpAttack()
        {
            SoundCore.Instance.PlaySound(SoundType.CockJumpAttack, "player-" + playerId);
            _curData.StartJump();
        }

        public void OnAttackEnd()
        {
            _curData.StopMove();
        }

        public void OnJumpEnd()
        {
            _curData.StopJump();
        }

        public void SetHighJump(bool high)
        {
            _curData = high ? _highData : _lowData;
        }

        public void CreateMiss()
        {
            this._createMiss = true;
        }

        private void CreateMissText()
        {
            var obj = Instantiate(_missPrefab);
            obj.GetComponent<MissText>().SetTarget(transform);
        }
    }

    public class CockJumpData
    {
        private readonly float _gravity; // 重力

        private readonly float _jumpVelocity; // 跳跃速度

        private readonly bool _forward; // 是否前进

        private Vector3 _jumpDirection = Vector3.zero;

        private Vector3 _moveDirection = Vector3.zero;

        private bool _move = false; // 是否移动状态

        private float _timeToJumpApex;

        private float _curJumpTime;

        // 跳跃高度 到达跳跃高度的时间
        public CockJumpData(float jumpHeight, float timeToJumpApex, bool forward)
        {
            _forward = forward;
            _timeToJumpApex = timeToJumpApex;
            // 计算跳跃速度和重力
            _gravity = -(2 * jumpHeight) / Mathf.Pow(timeToJumpApex, 2);
            _jumpVelocity = Mathf.Abs(_gravity) * timeToJumpApex;
        }

        public Vector3 GetJumpVector()
        {
            if (_curJumpTime < 0)
            {
                return Vector3.zero;
            }

            // 计算重力
            _jumpDirection.y += _gravity * Time.deltaTime;
            _curJumpTime -= Time.deltaTime;
            // 移动游戏对象
            return _jumpDirection * Time.deltaTime;
        }

        public Vector3 GetMoveVector()
        {
            if (!_move)
                return Vector3.zero;
            // 计算位移
            _moveDirection.x = (_forward ? 30f : -30f) * Time.deltaTime;
            return _moveDirection * Time.deltaTime;
        }

        public void StartJump()
        {
            _jumpDirection.y = _jumpVelocity;
            _curJumpTime = _timeToJumpApex * 2; // 双倍时间
            _move = true;
        }

        public void StartMove()
        {
            _move = true;
        }

        public void StopJump()
        {
            _move = false;
        }

        public void StopMove()
        {
            _move = false;
        }
    }
}