using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

namespace Snxxz.UI
{
    public class SkillExpertBehaviour : MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IPointerExitHandler
    {
        [SerializeField] ImageEx m_Bottom;
        [SerializeField] ImageEx m_Icon;
        [SerializeField] Text m_SkillName;
        [SerializeField] Text m_Level;
        [SerializeField] ImageEx m_ReikiBottom;
        [SerializeField] Text m_Limit;
        [SerializeField] Text m_UnActive;
        [SerializeField] RedpointBehaviour m_Redpoint;
        [SerializeField] Button m_Select;

        const float dragDelay = 0.2f;


        public int skillId { get; private set; }

        bool isUnlock = false;

        bool onPress = false;
        float m_Time = 0.0f;

        public RectTransform flyContainer
        {
            get { return m_Icon.rectTransform; }
        }

        TreasureSkillModel model { get { return ModelCenter.Instance.GetModel<TreasureSkillModel>(); } }

        SkillModel skillModel { get { return ModelCenter.Instance.GetModel<SkillModel>(); } }

        public void Display(int skillId, int level)
        {
            this.skillId = skillId;
            this.isUnlock = level > 0;

            var skillConfig = SkillConfig.Get(skillId);

            m_Icon.SetSprite(skillConfig.IconName);
            m_SkillName.text = skillConfig.SkillName;

            var property = skillConfig.RequireProperty();
            m_ReikiBottom.SetSprite("XT_LGDT_" + property);

            var selectExpertSkill = 0;
            model.TryGetExpertSkill(ExpertSkillSelectWin.skillId, out selectExpertSkill);

            TreasurePotential expert;
            model.TryGetPotential(skillId, out expert);

            m_Limit.text = string.Format("{0}级可使用", expert.limitLevel);

            m_Limit.gameObject.SetActive(PlayerDatas.Instance.baseData.LV < expert.limitLevel);
            m_Level.gameObject.SetActive(isUnlock);
            m_UnActive.gameObject.SetActive(!isUnlock && PlayerDatas.Instance.baseData.LV >= expert.limitLevel);
            m_Bottom.gray = !isUnlock;
            m_Icon.gray = !isUnlock;
            m_ReikiBottom.gray = !isUnlock;

            if (isUnlock)
            {
                m_Level.text = Language.Get("ExpertSkillLV", Language.Get("Num_CHS_" + level));
            }

            m_Redpoint.redpointId = expert.activeRedpoint.id;

            m_Select.SetListener(OnSelect);
        }

        private void OnSelect()
        {
            ExpertSkillSelectWin.skillId = skillId;
            WindowCenter.Instance.Open<ExpertSkillSelectWin>();
        }

        public void OnPointerDown(PointerEventData eventData)
        {
            if (!isUnlock)
            {
                return;
            }
            onPress = true;
        }

        public void OnPointerUp(PointerEventData eventData)
        {
            var position = Input.mousePosition;
            if (!skillModel.skillDraging
                && RectTransformUtility.RectangleContainsScreenPoint(transform as RectTransform, position))
            {
                m_Select.OnPointerClick(eventData);
            }
            onPress = false;
            m_Time = 0;
        }

        public void OnPointerExit(PointerEventData eventData)
        {
        }

        private void LateUpdate()
        {
            if (onPress && !skillModel.skillDraging)
            {
                m_Time += Time.deltaTime;
                if (m_Time > dragDelay)
                {
                    skillModel.skillDragId = skillId;
                    skillModel.skillDraging = true;
                    m_Time = 0;
                    onPress = false;
                }
            }
        }
    }
}