using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using GoogleMobileAds.Common;
using JetBrains.Annotations;
using KwaiAds.Scripts.Api;
using KwaiAds.Scripts.Api.Interstitial;
using KwaiAds.Scripts.Api.Reward;
using UnityEngine;
using static WZ.KwaiAdsConfigParser;

namespace WZ
{
    public class KwaiFloorIvManager : D_MonoSingleton<KwaiFloorIvManager>
    {
        private int _ivParallelRequests = 3;
        private List<FloorConfig> _ivFloorConfigs = new List<FloorConfig>();
        public Dictionary<string, IInterstitialAdController> _ivFloorAdControllers = new Dictionary<string, IInterstitialAdController>();
        private List<FloorConfig> _sortedFloors = new List<FloorConfig>();
        private int _currentFloorIndex = 0;
        private bool _isRequestingFloors = false;
        private List<FloorConfig> _currentRequestBatch = new List<FloorConfig>();
        private FloorConfig _successfulFloor = null;
        public float _ivStartLoadTime = 0;
        private int _waterfallRequestCount = 0; // waterfall请求次数
        private Dictionary<string, int> _unitIdRequestCounts = new Dictionary<string, int>(); // 每个unit_id的请求次数
        private string _currentRequestId; // 当前waterfall请求的ID


        public void InitializeWithFloors()
        {
            // 对楼层按价格从高到低排序
            _sortedFloors = _ivFloorConfigs.OrderByDescending(f => f.price).ToList();
            LoggerUtils.Debug("[kwai] floor inter Sorted floors: " + string.Join(", ", _sortedFloors.Select(f => $"{f.id}:{f.price}")));
        }

        public void LoadKwaiBiddingConfig()
        {
            _ivParallelRequests = KwaiAdsConfigParser.GetIvParallelRequests();
            _ivFloorConfigs = KwaiAdsConfigParser.GetIvFloorConfigs();
            LoggerUtils.Debug($"[kwai] floor inter  bidding config loaded. FloorOpen: {KwaiAdsConfigParser.GetKwaiIvFloorOpen()}, ParallelRequests: {_ivParallelRequests}, Floors: {_ivFloorConfigs.Count}");
        }

        public void LoadInterstitialWithFloors()
        {
            if (_ivFloorConfigs == null || _ivFloorConfigs.Count == 0)
            {
                LoggerUtils.Debug("[kwai] floor inter No floor configs available, using standard load");
                KwaiAdsManager.Instance.LoadRewardedStandard();
                return;
            }
            _ivStartLoadTime = Time.realtimeSinceStartup;
            // 重置状态
            _currentFloorIndex = 0;
            _successfulFloor = null;
            _isRequestingFloors = true;
            _currentRequestId = GenerateRequestId();

            // 增加waterfall请求计数
            _waterfallRequestCount++;

            // 清理之前的广告控制器
            foreach (var controller in _ivFloorAdControllers.Values)
            {
                controller.Destroy();
            }
            _ivFloorAdControllers.Clear();

            // 开始请求楼层广告
            RequestNextFloorBatch();

            AdsActionEvents.TrackKwaiWaterfallRequest(AdsType.Interstitial,
                _currentRequestId,
                _waterfallRequestCount,
                _ivParallelRequests);
        }

        private void RequestNextFloorBatch()
        {
            if (!_isRequestingFloors || _successfulFloor != null) return;

            // 获取下一批要请求的楼层
            _currentRequestBatch = new List<FloorConfig>();
            int count = 0;

            while (_currentFloorIndex < _sortedFloors.Count && count < _ivParallelRequests)
            {
                _currentRequestBatch.Add(_sortedFloors[_currentFloorIndex]);
                _currentFloorIndex++;
                count++;
            }

            if (_currentRequestBatch.Count == 0)
            {
                // 检查是否还有正在处理的请求
                bool hasPendingRequests = false;
                foreach (var kvp in _ivFloorAdControllers)
                {
                    if (kvp.Value != null && !kvp.Value.IsReady())
                    {
                        hasPendingRequests = true;
                        break;
                    }
                }

                if (!hasPendingRequests)
                {
                    // 所有楼层都请求完毕，并且没有正在处理的请求，确实没有填充
                    LoggerUtils.Debug("[kwai] floor reward All floors requested, no fill");
                    _isRequestingFloors = false;
                }
            }

            LoggerUtils.Debug($"[kwai] floor inter Requesting floor batch: {string.Join(", ", _currentRequestBatch.Select(f => $"{f.id}({f.price})"))}");

            // 并行请求当前批次的楼层
            foreach (var floor in _currentRequestBatch)
            {
                RequestFloorAd(floor);
            }

        }

        private void RequestFloorAd(FloorConfig floor)
        {
            // 更新unite_id请求计数
            if (!_unitIdRequestCounts.ContainsKey(floor.unite_id))
            {
                _unitIdRequestCounts[floor.unite_id] = 0;
            }
            _unitIdRequestCounts[floor.unite_id]++;

            // 获取当前楼层在排序列表中的位置
            int floorIndex = GetFloorIndex(floor.id);
            LoggerUtils.Debug($"[kwai] floor inter Requesting floor {floor.id} (index: {floorIndex}), unite_id {floor.unite_id} has been requested {_unitIdRequestCounts[floor.unite_id]} times, request id: {GetUniteIdRequestCount(floor.unite_id)}");

            IInterstitialAdController controller = KwaiAds.Scripts.Api.KwaiAdsSdk.SDK.getInterstitialAdController(); ;
            _ivFloorAdControllers[floor.id] = controller;

            KwaiInterstitialAdRequest kwaiInterstitialAdRequest = new KwaiInterstitialAdRequest(floor.unite_id);
            kwaiInterstitialAdRequest.ExtParams[Constants.Request.BID_FLOOR_PRICE] = floor.price.ToString();

            controller.Load(kwaiInterstitialAdRequest,
                new FloorInterAdListener(this, floor),
                new FloorInterAdLoadListener(this, floor));

            AdsActionEvents.TrackKwaiAdunitRequest(AdsType.Interstitial,
                _currentRequestId,
                floor.unite_id,
                floor.price,
                GetWaterfallRequestCount(),
                GetUniteIdRequestCount(floor.unite_id),
                floorIndex);

        }

        // 处理楼层广告加载成功
        public void OnFloorAdLoaded(FloorConfig floor, IInterstitialAdController controller, double revenue)
        {
            if (!_isRequestingFloors || _successfulFloor != null) return;

            // 获取当前楼层在排序列表中的位置
            int floorIndex = GetFloorIndex(floor.id);
            LoggerUtils.Debug($"[kwai] floor inter ad loaded: {floor.id} (index: {floorIndex}) with price: {floor.price}, unite_id {floor.unite_id} has been requested {GetUniteIdRequestCount(floor.unite_id)} times, revenue: {revenue}, request id: {_currentRequestId}");


            // 暂停其他并行请求
            _successfulFloor = floor;
            _isRequestingFloors = false;

            // 取消其他楼层的请求
            foreach (var kvp in _ivFloorAdControllers)
            {
                if (kvp.Key != floor.id)
                {
                    kvp.Value.Destroy();
                }
            }
            AdsActionEvents.TrackKwiWaterfallFill(AdsType.Interstitial,
                _currentRequestId,
                floor.unite_id,
                floor.price,
                GetWaterfallRequestCount(),
                GetUniteIdRequestCount(floor.unite_id),
                floorIndex,
                revenue);
        }

        // 处理楼层广告加载失败
        public void OnFloorAdFailed(FloorConfig floor, string error)
        {
            LoggerUtils.Debug($"[kwai] floor inter ad failed: {floor.id} with error: {error} _isRequestingFloors:{!_isRequestingFloors} _successfulFloor: {_successfulFloor != null}");
            if (!_isRequestingFloors || _successfulFloor != null) return;

            // 移除失败floor
            if (_currentRequestBatch.Contains(floor)) _currentRequestBatch.Remove(floor);

            // 检查当前批次是否全部失败
            bool allFailedInBatch = true;
            if (_currentRequestBatch.Count > 0) allFailedInBatch = false;

            // 如果当前批次全部失败，请求下一批
            if (allFailedInBatch)
            {
                RequestNextFloorBatch();
            }
        }

        public bool IsInterstitialAdAvailable()
        {
            return _successfulFloor != null &&
                    _ivFloorAdControllers.ContainsKey(_successfulFloor.id) &&
                    _ivFloorAdControllers[_successfulFloor.id] != null &&
                    _ivFloorAdControllers[_successfulFloor.id].IsReady();
        }

        public void ShowInterstitialAd(Action _action)
        {
            if (_successfulFloor != null &&
                    _ivFloorAdControllers.ContainsKey(_successfulFloor.id) &&
                    _ivFloorAdControllers[_successfulFloor.id] != null)
            {
                _ivFloorAdControllers[_successfulFloor.id].Show();
            }
            else
            {
                _action?.Invoke();
            }
        }

        /// <summary>
        /// 获取当前waterfall请求次数
        /// </summary>
        public int GetWaterfallRequestCount()
        {
            return _waterfallRequestCount;
        }

        /// <summary>
        /// 获取当前waterfall请求次数
        /// </summary>
        public int GetUniteIdRequestCount(string unitId)
        {
            return _unitIdRequestCounts.TryGetValue(unitId, out var time) ? time : 0;
        }

        /// <summary>
        /// 根据floor.id获取其在排序后的楼层列表中的索引位置
        /// </summary>
        public int GetFloorIndex(string floorId)
        {
            for (int i = 0; i < _sortedFloors.Count; i++)
            {
                if (_sortedFloors[i].id == floorId)
                {
                    return i;
                }
            }
            return -1; // 未找到
        }

        /// <summary>
        /// 获取当前Request ID
        /// </summary>
        public string GetCurrentRequestId()
        {
            return _currentRequestId;
        }

        /// <summary>
        /// 生成唯一的Request ID
        /// </summary>
        private string GenerateRequestId()
        {
            return Guid.NewGuid().ToString("N");
        }
        
        public string GetSuccessfulFloorUnitId()
        { 
            return _successfulFloor != null ? _successfulFloor.unite_id : "";
        }
    }
}