using System;
using PhxhSDK;
using Framework;
using UnityEngine;
using System.Linq;
using Framework.Constants;
using Cysharp.Threading.Tasks;
using System.Collections.Generic;

public class BuildSelectManager
{
    public class BuildSelectItem
    {
        public Sprite BuildSprite;
        public string BuildID;
        public string PathSprite;
        public int Index;
    }

    private static BuildSelectManager _instance;

    public static BuildSelectManager Instance
    {
        get
        {
            if (_instance == null)
            {
                _instance = new BuildSelectManager();
            }

            return _instance;
        }
    }

    public Dictionary<string, BuildSelectItem> BuildSelectItems;

    private bool _isInit;

    public async UniTask InitAsync()
    {
        if (_isInit) return;
        try
        {
            BuildSelectItems = new Dictionary<string, BuildSelectItem>();
            var buildConfig = TableManager.Instance.Tables.BuildConfig.DataMap;
            var index = 0;
            foreach (var build in buildConfig)
            {
                var id = build.Key;
                var path = string.Format(PathConstants.BuildSelect, id);
                var sprite = await AssetManager.Instance.LoadAssetAsync<Sprite>(path);

                var buildItem = new BuildSelectItem
                {
                    BuildSprite = sprite,
                    BuildID = id,
                    PathSprite = path,
                    Index = index
                };
                BuildSelectItems.Add(id, buildItem);
                index++;
            }

            //添加敬请期待
            var stayTurnSprite = await AssetManager.Instance.LoadAssetAsync<Sprite>(PathConstants.BuildSelectStayTurn);

            var buildStayTurnItem = new BuildSelectItem
            {
                BuildSprite = stayTurnSprite,
                BuildID = "None",
                PathSprite = PathConstants.BuildSelectStayTurn,
                Index = index
            };
            BuildSelectItems.Add("None", buildStayTurnItem);

            _isInit = true;
        }
        catch (Exception e)
        {
            DebugUtil.LogError("BuildSelectManager.InitAsync Error: {0}", e);
        }
    }

    public BuildSelectItem GetBuildSelectItem(string buildID)
    {
        return BuildSelectItems.GetValueOrDefault(buildID);
    }

    public BuildSelectItem GetNextBuildSelectItem(int index)
    {
        return BuildSelectItems.Values.FirstOrDefault(item => item.Index == index + 1);
    }

    public BuildSelectItem GetPreviousBuildSelectItem(int index)
    {
        return BuildSelectItems.Values.FirstOrDefault(item => item.Index == index - 1);
    }

    public void Release()
    {
        foreach (var buildSelectItem in BuildSelectItems)
        {
            AssetManager.Instance.Unload(buildSelectItem.Value.PathSprite);
            buildSelectItem.Value.BuildSprite = null;
        }

        BuildSelectItems = null;
    }
}