using System.Collections.Generic;
using UnityEngine;

/// <summary>
/// 首充每日奖励显示组件
/// 负责显示首充活动每天的奖励内容和领取状态
/// </summary>
public class FirstChargeDayAward : MonoBehaviour
{
    [SerializeField] ImageEx imgCanHaveBG;          // 可领取背景高亮显示
    [SerializeField] ImageEx imgDay;                // 天数图片
    [SerializeField] TextEx txtDay;                 // 天数文本
    [SerializeField] Transform transCount4;         // 4个奖励物品的容器
    [SerializeField] Transform transCount3;         // 3个奖励物品的容器
    [SerializeField] Transform transCount2;         // 2个奖励物品的容器
    [SerializeField] Transform transCount1;         // 1个奖励物品的容器

    // 各数量级奖励物品显示单元
    [SerializeField] List<ItemCell> itemCellCount4 = new List<ItemCell>();
    [SerializeField] List<ItemCell> itemCellCount3 = new List<ItemCell>();
    [SerializeField] List<ItemCell> itemCellCount2 = new List<ItemCell>();
    [SerializeField] ItemCell itemCellCount1 = new ItemCell();

    // 奖励已领取遮罩图片
    [SerializeField] List<ImageEx> imgHaveCount4 = new List<ImageEx>();
    [SerializeField] List<ImageEx> imgHaveCount3 = new List<ImageEx>();
    [SerializeField] List<ImageEx> imgHaveCount2 = new List<ImageEx>();
    [SerializeField] ImageEx imgHaveCount1 = new ImageEx();

    /// <summary>
    /// 显示指定首充ID和天数的奖励信息
    /// </summary>
    /// <param name="firstId">首充配置ID</param>
    /// <param name="day">第几天(1-3)</param>
    public void Display(int firstId, int day)
    {
        // 获取首充数据
        if (!FirstChargeManager.Instance.TryGetFirstChargeDataByFirstId(firstId, out var firstChargeData))
            return;

        // 获取奖励状态: 0-已领取, 1-不可领取, 2-可领取, 3-未知状态
        int awardState = firstChargeData.GetHaveState(day);

        // 根据状态设置UI显示
        imgCanHaveBG.SetActive(firstChargeData.IsBuy() && awardState == 2);
        txtDay.text = awardState == 0 ? Language.Get("L1129_2") : Language.Get("FirstCharge02", day);
        imgDay.gray = awardState == 0;  // 已领取则置灰天数图标

        // 隐藏所有奖励物品容器
        transCount4.SetActive(false);
        transCount3.SetActive(false);
        transCount2.SetActive(false);
        transCount1.SetActive(false);

        // 检查配置是否存在
        if (!FirstChargeConfig.HasKey(firstId))
            return;

        FirstChargeConfig config = FirstChargeConfig.Get(firstId);
        int[][] awardList = GetAwardListByDay(config, day);

        // 检查奖励列表有效性
        if (awardList == null || awardList.Length <= 0)
        {
            Debug.LogError($"首充表第{day}天奖励没配");
            return;
        }

        if (awardList.Length > 4)
        {
            Debug.LogError($"首充表奖励物品不支持配大于4个");
            return;
        }

        // 根据奖励数量显示对应的UI
        switch (awardList.Length)
        {
            case 1:
                ShowAwardsForCount1(awardList, awardState, firstId);
                break;
            case 2:
                ShowAwardsForCount2(awardList, awardState);
                break;
            case 3:
                ShowAwardsForCount3(awardList, awardState);
                break;
            case 4:
                ShowAwardsForCount4(awardList, awardState);
                break;
        }
    }

    /// <summary>
    /// 根据天数获取对应的奖励列表
    /// </summary>
    /// <param name="config">首充配置</param>
    /// <param name="day">天数</param>
    /// <returns>奖励列表</returns>
    private int[][] GetAwardListByDay(FirstChargeConfig config, int day)
    {
        switch (day)
        {
            case 1:
                return config.AwardListDay1;
            case 2:
                return config.AwardListDay2;
            case 3:
                return config.AwardListDay3;
            default:
                Debug.LogError("FirstChargeItemCellShow传入天数大于3或小于0");
                return null;
        }
    }

    /// <summary>
    /// 显示单个奖励物品
    /// </summary>
    /// <param name="awardList">奖励列表</param>
    /// <param name="awardState">奖励状态</param>
    /// <param name="firstId">首充ID</param>
    private void ShowAwardsForCount1(int[][] awardList, int awardState, int firstId)
    {
        transCount1.SetActive(true);
        itemCellCount1.Init(new ItemCellModel((int)awardList[0][0], true, awardList[0][1]));
        itemCellCount1.button.SetListener(() => HandleItemClick((int)awardList[0][0], awardList[0][2]));
        imgHaveCount1.SetActive(awardState == 0);
    }

    /// <summary>
    /// 显示两个奖励物品
    /// </summary>
    /// <param name="awardList">奖励列表</param>
    /// <param name="awardState">奖励状态</param>
    private void ShowAwardsForCount2(int[][] awardList, int awardState)
    {
        transCount2.SetActive(true);
        ShowAwardsCommonLogic(awardList, awardState, itemCellCount2, imgHaveCount2);
    }

    /// <summary>
    /// 显示三个奖励物品
    /// </summary>
    /// <param name="awardList">奖励列表</param>
    /// <param name="awardState">奖励状态</param>
    private void ShowAwardsForCount3(int[][] awardList, int awardState)
    {
        transCount3.SetActive(true);
        ShowAwardsCommonLogic(awardList, awardState, itemCellCount3, imgHaveCount3);
    }

    /// <summary>
    /// 显示四个奖励物品
    /// </summary>
    /// <param name="awardList">奖励列表</param>
    /// <param name="awardState">奖励状态</param>
    private void ShowAwardsForCount4(int[][] awardList, int awardState)
    {
        transCount4.SetActive(true);
        ShowAwardsCommonLogic(awardList, awardState, itemCellCount4, imgHaveCount4);
    }

    /// <summary>
    /// 统一处理物品点击事件
    /// </summary>
    /// <param name="itemId">物品ID</param>
    private void HandleItemClick(int itemId, int customEquipId)
    {
        if (!ItemConfig.HasKey(itemId))
            return;
        if (ItemConfig.Get(itemId).Type == 150)
        {
            FirstChargeManager.Instance.heroItemID = itemId;
            UIManager.Instance.OpenWindow<FirstChargeHeroInfoWin>();
        }
        else if (ItemConfig.Get(itemId).Type >= 101 &&
                ItemConfig.Get(itemId).Type <= 117 &&
                customEquipId > 0 &&
                AppointItemConfig.HasKey(customEquipId))
        {
            ItemTipUtility.ShowCustomEquip(itemId, customEquipId);
        }
        else
        {
            ItemTipUtility.Show(itemId, true);
        }
    }

    /// <summary>
    /// 通用奖励显示逻辑
    /// </summary>
    /// <param name="awardList">奖励列表</param>
    /// <param name="awardState">奖励状态</param>
    /// <param name="itemCells">物品显示单元列表</param>
    /// <param name="haveImages">已领取遮罩图片列表</param>
    private void ShowAwardsCommonLogic<T>(int[][] awardList, int awardState, List<T> itemCells, List<ImageEx> haveImages) where T : ItemCell
    {
        for (int i = 0; i < awardList.Length; i++)
        {
            // 设置物品显示
            if (i < itemCells.Count)
            {
                int index = i; // Lambda表达式中使用，需要创建局部副本
                itemCells[i].SetActive(true);
                itemCells[i].Init(new ItemCellModel((int)awardList[i][0], true, awardList[i][1]));
                itemCells[i].button.SetListener(() => HandleItemClick((int)awardList[index][0], awardList[index][2]));
            }
            else
            {
                itemCells[i].SetActive(false);
            }

            // 设置已领取遮罩
            if (awardState == 0 && i < haveImages.Count)
            {
                haveImages[i].SetActive(true);
            }
            else if (i < haveImages.Count)
            {
                haveImages[i].SetActive(false);
            }
        }
    }
}