using FreeSql;

using LiveForum.Code.Base;
using LiveForum.IService.Streamers;
using LiveForum.Model;
using LiveForum.Model.Dto.Streamers;

using Newtonsoft.Json;

using System;
using System.Linq;
using System.Threading.Tasks;

namespace LiveForum.Service.Streamers
{
    /// <summary>
    /// 主播服务实现
    /// </summary>
    public class StreamersService : IStreamersService
    {
        private readonly IFreeSql _fsql;
        private readonly IBaseRepository<T_Streamers> _streamersRepository;
        private readonly IBaseRepository<T_StreamersLog> _streamersLogRepository;

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="fsql">FreeSql实例</param>
        /// <param name="streamersRepository">主播仓储</param>
        /// <param name="streamersLogRepository">主播日志仓储</param>
        public StreamersService(
            IFreeSql fsql,
            IBaseRepository<T_Streamers> streamersRepository,
            IBaseRepository<T_StreamersLog> streamersLogRepository)
        {
            _fsql = fsql;
            _streamersRepository = streamersRepository;
            _streamersLogRepository = streamersLogRepository;
        }

        /// <summary>
        /// 上报主播数据（粉丝、收入、直播状态等）
        /// </summary>
        /// <param name="request">上报请求参数</param>
        /// <param name="category">主播分类（从URL参数获取）</param>
        /// <param name="logId">日志ID（从URL参数获取）</param>
        /// <returns></returns>
        public async Task<BaseResponse<StreamerReportRespDto>> ReportStreamerData(StreamerReportReq request, string category, string logId)
        {
            try
            {
                if (request == null || request.Data == null || request.Data.Count == 0)
                {
                    return new BaseResponse<StreamerReportRespDto>(ResponseCode.Error, "请求数据不能为空");
                }

                // 验证必需参数
                if (string.IsNullOrWhiteSpace(category))
                {
                    return new BaseResponse<StreamerReportRespDto>(ResponseCode.Error, "category参数不能为空");
                }

                // 1. 记录日志
                var logContent = JsonConvert.SerializeObject(request, Formatting.Indented);
                var streamerLog = new T_StreamersLog
                {
                    Category = category, // 从URL参数获取
                    ContentText = logContent,
                    Source = request.Metadata?.Source ?? "字节跳动直播服务平台",
                    SourceCreatedAt = DateTime.TryParse(request.Metadata?.CreatedAt, out var sourceTime) 
                        ? sourceTime 
                        : DateTime.Now,
                    Total = request.Metadata?.Total ?? request.Data.Count,
                    LogId = logId ?? Guid.NewGuid().ToString().ToUpper() // 从URL参数获取，如果为空则生成新的
                };
                await _streamersLogRepository.InsertAsync(streamerLog);

                // 2. 处理主播数据
                int successCount = 0;
                int failCount = 0;
                int newCount = 0;
                int updateCount = 0;

                foreach (var item in request.Data)
                {
                    try
                    {
                        // 查找主播（根据StreamerId）
                        var streamer = await _streamersRepository.Select
                            .Where(s => s.StreamerId == item.AnchorID && s.Category == category)
                            .FirstAsync();

                        if (streamer == null)
                        {
                            // 新增主播
                            streamer = new T_Streamers
                            {
                                StreamerId = item.AnchorID,
                                StreamerUserId = item.UserID,
                                Nickname = item.AnchorName ?? "",
                                Avatar = item.AnchorAvatar,
                                Income = item.Income,
                                IsLive = item.LiveStatus == "2",
                                Rank = item.Rank > 0 ? item.Rank : null,
                                Category = category, // 从URL参数获取
                                IsEnabled = true,
                                FollowerCount = 0, // 新增时不设置粉丝数，等待后续更新
                                CreatedAt = DateTime.Now,
                                UpdatedAt = DateTime.Now
                            };

                            // 如果fans不为0，则设置FollowerCount
                            if (int.TryParse(item.Fans, out var fans) && fans > 0)
                            {
                                streamer.FollowerCount = fans;
                            }

                            await _streamersRepository.InsertAsync(streamer);
                            newCount++;
                            successCount++;
                        }
                        else
                        {
                            // 更新主播信息
                            streamer.StreamerUserId = item.UserID;
                            streamer.Nickname = item.AnchorName ?? streamer.Nickname;
                            streamer.Avatar = item.AnchorAvatar ?? streamer.Avatar;
                            streamer.Income = item.Income ?? streamer.Income;
                            streamer.IsLive = item.LiveStatus == "2";
                            streamer.Rank = item.Rank > 0 ? item.Rank : null;
                            streamer.Category = category; // 从URL参数获取并更新
                            streamer.UpdatedAt = DateTime.Now;

                            // 如果fans不为0，则更新FollowerCount
                            if (int.TryParse(item.Fans, out var fans) && fans > 0)
                            {
                                streamer.FollowerCount = fans;
                            }
                            // 如果fans==0，则不更新FollowerCount字段（保持原值）

                            await _streamersRepository.UpdateAsync(streamer);
                            updateCount++;
                            successCount++;
                        }
                    }
                    catch (Exception ex)
                    {
                        // 记录单个主播处理失败，但不影响其他主播
                        failCount++;
                        Console.WriteLine($"处理主播数据失败 - AnchorID: {item.AnchorID}, Error: {ex.Message}");
                    }
                }

                // 3. 返回处理结果
                return new BaseResponse<StreamerReportRespDto>("上报成功", new StreamerReportRespDto
                {
                    SuccessCount = successCount,
                    FailCount = failCount,
                    NewCount = newCount,
                    UpdateCount = updateCount
                });
            }
            catch (Exception ex)
            {
                return new BaseResponse<StreamerReportRespDto>(ResponseCode.Error, $"系统错误: {ex.Message}");
            }
        }
    }
}