using asap.core;
using asap.core.common;
using UnityEngine;
using UniRx;
using System.Threading.Tasks;
using System.Collections.Generic;
using Game;
using UnityEngine.UI;
using GameCore;

public class RewardFlyBatchController : MonoBehaviour
{
    [Header("Configuration")]
    [SerializeField] private BatchedRewardFly rewardFlyPrefab;
    [SerializeField] private int initialPoolSize = 5;
    [SerializeField] private int maxPoolSize = 20;
    [SerializeField] private int maxIconsPerRequest = 8;

    [Header("Animation Parameters")]
    [SerializeField] private RewardFlyAnimationParams[] animationParamList;

    // public IEventAggregator EventBus { get; private set; }
    private IObjectPoolService _objectPoolService;
    private IObjectPool _rewardFlyPool;

    void Awake()
    {
        _objectPoolService = GContext.container.Resolve<IObjectPoolService>();
        _rewardFlyPool = _objectPoolService.CreatePool(rewardFlyPrefab, initialPoolSize, maxPoolSize);
        GContext.OnEvent<BatchedRewardFlyRequest>().Subscribe(OnRewardFlyRequest).AddTo(this);
    }

    void OnDestroy()
    {
        _objectPoolService?.DestroyPool(typeof(BatchedRewardFly));
        _rewardFlyPool = null;
    }

    public async void OnRewardFlyRequest(BatchedRewardFlyRequest request)
    {
        try
        {
            await OnRewardFlyRequestAsync(request);
        }
        catch (System.Exception ex)
        {
            Debug.LogError(ex);
        }
    }

    public async Task OnRewardFlyRequestAsync(BatchedRewardFlyRequest request)
    {
        var rewardFlyList = new List<BatchedRewardFly>();
        try
        {
            int iconCount = 1;
            if (request.Quantity.HasValue)
                iconCount = Mathf.Clamp(request.Quantity.Value, 1, maxIconsPerRequest);
            var taskList = new List<Task>();
            var param = animationParamList[request.AnimationParamIndex];
            // if (param.IsPlayOpen)
            // GContext.Publish(new EventUISound("audio_ui_rewardfly_single_fly"));
            string audioShow = param.GetAudioUrl(0, iconCount > 1);
            GContext.Publish(new EventUISound(audioShow));
            BatchedRewardFly rewardFly;
            //Show
            if (iconCount <= 1)
            {
                rewardFly = _rewardFlyPool.SpawnObject() as BatchedRewardFly;
                if (rewardFly == null)
                {
                    Debug.LogError("[RewardFlyBatchController] Failed to spawn RewardFly from pool.");
                    return;
                }
                rewardFlyList.Add(rewardFly);
                rewardFly.gameObject.SetActive(true);
                await rewardFly.SingleFlyAsync(request, param);
            }
            else
            {
                rewardFly = _rewardFlyPool.SpawnObject() as BatchedRewardFly;
                if (rewardFly == null)
                {
                    Debug.LogError("[RewardFlyBatchController] Failed to spawn RewardFly from pool.");
                    return;
                }
                rewardFlyList.Add(rewardFly);
                rewardFly.gameObject.SetActive(true);
                await rewardFly.BatchShowAsync(request, param);
                for (int i = 0; i < iconCount; i++)
                {
                    rewardFly = _rewardFlyPool.SpawnObject() as BatchedRewardFly;
                    if (rewardFly == null)
                    {
                        Debug.LogError("[RewardFlyBatchController] Failed to spawn RewardFly from pool.");
                        continue;
                    }
                    rewardFlyList.Add(rewardFly);
                    rewardFly.gameObject.SetActive(true);
                    taskList.Add(rewardFly.BatchFlyAsync(request, param));
                    if (iconCount > 1)
                    {
                        await Task.Delay(System.TimeSpan.FromSeconds(param.SpawnInterval));
                    }
                }
                await Task.WhenAll(taskList.ToArray());
            }
            rewardFlyList.ForEach(rf => rf.ReturnPool());
            rewardFlyList.Clear();
        }
        catch (System.Exception e)
        {
            Debug.Log($"[RewardFlyBatchController] {e.Message}\n{e.StackTrace}");
            rewardFlyList.ForEach(rf => Destroy(rf.gameObject));
            rewardFlyList.Clear();
        }
        // Debug.Log("[RewardFlyBatchController] Done.");
    }
}

public class BatchedRewardFlyRequest
{
    // Pick one of these three, things just work.
    public int itemID; public string iconName; public Sprite icon;
    public int? Quantity;
    public BatchedRewardFlyPoint StartPoint;
    public BatchedRewardFlyPoint EndPoint;
    public RectTransform sourceTextRt = null;
    public bool isDestinationRewardStash;
    public int AnimationParamIndex;
    public BatchedRewardFlyRequest() { }
}

public class BatchedRewardFlyPoint
{
    /// <summary>
    /// Global position of a transform
    /// </summary>
    public readonly Vector3 Pos;
    /// <summary>
    /// Literal size of a transform
    /// </summary>
    public readonly float Size;
    /// <summary>
    /// Lossy scale of a transform
    /// </summary>
    public readonly float LossyScale;

    public BatchedRewardFlyPoint(Vector3 pos, float size, float lossyScale)
    {
        Pos = pos;
        Size = size;
        LossyScale = lossyScale;
    }

    public BatchedRewardFlyPoint(Vector3 pos)
    {
        Pos = pos;
        Size = 0f;
        LossyScale = 1f;
    }

    public BatchedRewardFlyPoint(RectTransform t)
    {
        Pos = t.position;
        Size = t.sizeDelta.x;
        LossyScale = t.lossyScale.x;
    }
}