using HoneyBox.Admin.Business.Models;
using HoneyBox.Admin.Business.Models.Finance;
using HoneyBox.Admin.Business.Services.Interfaces;
using HoneyBox.Model.Data;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;

namespace HoneyBox.Admin.Business.Services;

/// <summary>
/// 财务服务实现
/// </summary>
public class FinanceService : IFinanceService
{
    private readonly HoneyBoxDbContext _dbContext;
    private readonly ILogger<FinanceService> _logger;

    public FinanceService(HoneyBoxDbContext dbContext, ILogger<FinanceService> logger)
    {
        _dbContext = dbContext;
        _logger = logger;
    }

    /// <summary>
    /// 获取消费排行榜
    /// </summary>
    public async Task<PagedResult<ConsumptionRankingResponse>> GetConsumptionRankingAsync(FinanceQueryRequest request)
    {
        // 基于订单表统计用户消费
        var query = _dbContext.Orders
            .Where(o => o.Status == 1) // 已支付订单
            .GroupBy(o => o.UserId)
            .Select(g => new
            {
                UserId = g.Key,
                TotalConsumption = g.Sum(o => o.Price),
                WeChatPayment = g.Sum(o => o.Price - o.UseMoney - o.UseIntegral - o.UseScore),
                BalancePayment = g.Sum(o => o.UseMoney),
                IntegralPayment = g.Sum(o => o.UseIntegral)
            });

        // 日期过滤
        if (request.StartDate.HasValue)
        {
            var startDate = request.StartDate.Value.Date;
            query = _dbContext.Orders
                .Where(o => o.Status == 1 && o.CreatedAt >= startDate)
                .GroupBy(o => o.UserId)
                .Select(g => new
                {
                    UserId = g.Key,
                    TotalConsumption = g.Sum(o => o.Price),
                    WeChatPayment = g.Sum(o => o.Price - o.UseMoney - o.UseIntegral - o.UseScore),
                    BalancePayment = g.Sum(o => o.UseMoney),
                    IntegralPayment = g.Sum(o => o.UseIntegral)
                });
        }

        if (request.EndDate.HasValue)
        {
            var endDate = request.EndDate.Value.Date.AddDays(1);
            query = _dbContext.Orders
                .Where(o => o.Status == 1 && o.CreatedAt < endDate)
                .GroupBy(o => o.UserId)
                .Select(g => new
                {
                    UserId = g.Key,
                    TotalConsumption = g.Sum(o => o.Price),
                    WeChatPayment = g.Sum(o => o.Price - o.UseMoney - o.UseIntegral - o.UseScore),
                    BalancePayment = g.Sum(o => o.UseMoney),
                    IntegralPayment = g.Sum(o => o.UseIntegral)
                });
        }

        // 按消费金额降序排序
        var orderedQuery = query.OrderByDescending(x => x.TotalConsumption);

        var total = await query.CountAsync();
        var items = await orderedQuery
            .Skip((request.Page - 1) * request.PageSize)
            .Take(request.PageSize)
            .ToListAsync();

        // 获取用户信息
        var userIds = items.Select(x => x.UserId).ToList();
        var users = await _dbContext.Users
            .Where(u => userIds.Contains(u.Id))
            .ToDictionaryAsync(u => u.Id);

        var result = items.Select(x =>
        {
            users.TryGetValue(x.UserId, out var user);
            return new ConsumptionRankingResponse
            {
                UserId = x.UserId,
                Uid = user?.Uid,
                Nickname = user?.Nickname,
                Avatar = user?.HeadImg,
                Mobile = user?.Mobile,
                TotalConsumption = x.TotalConsumption,
                WeChatPayment = x.WeChatPayment,
                BalancePayment = x.BalancePayment,
                IntegralPayment = x.IntegralPayment,
                CreatedAt = user?.CreatedAt ?? DateTime.MinValue
            };
        }).ToList();

        return new PagedResult<ConsumptionRankingResponse>
        {
            List = result,
            Total = total,
            Page = request.Page,
            PageSize = request.PageSize
        };
    }

    /// <summary>
    /// 获取余额明细
    /// </summary>
    public async Task<PagedResult<BalanceDetailResponse>> GetBalanceDetailsAsync(FinanceQueryRequest request)
    {
        var query = _dbContext.ProfitMoneys.AsQueryable();

        // 用户ID过滤
        if (request.UserId.HasValue)
        {
            query = query.Where(p => p.UserId == request.UserId.Value);
        }

        // 手机号过滤 - 需要关联用户表
        if (!string.IsNullOrWhiteSpace(request.Mobile))
        {
            var userIds = await _dbContext.Users
                .Where(u => u.Mobile != null && u.Mobile.Contains(request.Mobile))
                .Select(u => u.Id)
                .ToListAsync();
            query = query.Where(p => userIds.Contains(p.UserId));
        }

        // 日期过滤
        if (request.StartDate.HasValue)
        {
            query = query.Where(p => p.CreatedAt >= request.StartDate.Value.Date);
        }
        if (request.EndDate.HasValue)
        {
            query = query.Where(p => p.CreatedAt < request.EndDate.Value.Date.AddDays(1));
        }

        var total = await query.CountAsync();
        var items = await query
            .OrderByDescending(p => p.Id)
            .Skip((request.Page - 1) * request.PageSize)
            .Take(request.PageSize)
            .ToListAsync();

        // 获取用户信息
        var userIds2 = items.Select(x => x.UserId).Distinct().ToList();
        var users = await _dbContext.Users
            .Where(u => userIds2.Contains(u.Id))
            .ToDictionaryAsync(u => u.Id);

        var result = items.Select(x =>
        {
            users.TryGetValue(x.UserId, out var user);
            return new BalanceDetailResponse
            {
                Id = x.Id,
                UserId = x.UserId,
                Uid = user?.Uid,
                Nickname = user?.Nickname,
                Mobile = user?.Mobile,
                ChangeMoney = x.ChangeMoney,
                Money = x.Money,
                Type = x.Type,
                Content = x.Content,
                CreatedAt = x.CreatedAt
            };
        }).ToList();

        return new PagedResult<BalanceDetailResponse>
        {
            List = result,
            Total = total,
            Page = request.Page,
            PageSize = request.PageSize
        };
    }

    /// <summary>
    /// 获取积分明细
    /// </summary>
    public async Task<PagedResult<IntegralDetailResponse>> GetIntegralDetailsAsync(FinanceQueryRequest request)
    {
        var query = _dbContext.ProfitIntegrals.AsQueryable();

        // 用户ID过滤
        if (request.UserId.HasValue)
        {
            query = query.Where(p => p.UserId == request.UserId.Value);
        }

        // 手机号过滤
        if (!string.IsNullOrWhiteSpace(request.Mobile))
        {
            var userIds = await _dbContext.Users
                .Where(u => u.Mobile != null && u.Mobile.Contains(request.Mobile))
                .Select(u => u.Id)
                .ToListAsync();
            query = query.Where(p => userIds.Contains(p.UserId));
        }

        // 日期过滤
        if (request.StartDate.HasValue)
        {
            query = query.Where(p => p.CreatedAt >= request.StartDate.Value.Date);
        }
        if (request.EndDate.HasValue)
        {
            query = query.Where(p => p.CreatedAt < request.EndDate.Value.Date.AddDays(1));
        }

        var total = await query.CountAsync();
        var items = await query
            .OrderByDescending(p => p.Id)
            .Skip((request.Page - 1) * request.PageSize)
            .Take(request.PageSize)
            .ToListAsync();

        // 获取用户信息
        var userIds2 = items.Select(x => x.UserId).Distinct().ToList();
        var users = await _dbContext.Users
            .Where(u => userIds2.Contains(u.Id))
            .ToDictionaryAsync(u => u.Id);

        var result = items.Select(x =>
        {
            users.TryGetValue(x.UserId, out var user);
            return new IntegralDetailResponse
            {
                Id = x.Id,
                UserId = x.UserId,
                Uid = user?.Uid,
                Nickname = user?.Nickname,
                Mobile = user?.Mobile,
                ChangeMoney = x.ChangeMoney,
                Money = x.Money,
                Type = x.Type,
                Content = x.Content,
                CreatedAt = x.CreatedAt
            };
        }).ToList();

        return new PagedResult<IntegralDetailResponse>
        {
            List = result,
            Total = total,
            Page = request.Page,
            PageSize = request.PageSize
        };
    }

    /// <summary>
    /// 获取钻石明细
    /// </summary>
    public async Task<PagedResult<ScoreDetailResponse>> GetScoreDetailsAsync(FinanceQueryRequest request)
    {
        var query = _dbContext.ProfitScores.AsQueryable();

        // 用户ID过滤
        if (request.UserId.HasValue)
        {
            query = query.Where(p => p.UserId == request.UserId.Value);
        }

        // 手机号过滤
        if (!string.IsNullOrWhiteSpace(request.Mobile))
        {
            var userIds = await _dbContext.Users
                .Where(u => u.Mobile != null && u.Mobile.Contains(request.Mobile))
                .Select(u => u.Id)
                .ToListAsync();
            query = query.Where(p => userIds.Contains(p.UserId));
        }

        // 日期过滤
        if (request.StartDate.HasValue)
        {
            query = query.Where(p => p.CreatedAt >= request.StartDate.Value.Date);
        }
        if (request.EndDate.HasValue)
        {
            query = query.Where(p => p.CreatedAt < request.EndDate.Value.Date.AddDays(1));
        }

        var total = await query.CountAsync();
        var items = await query
            .OrderByDescending(p => p.Id)
            .Skip((request.Page - 1) * request.PageSize)
            .Take(request.PageSize)
            .ToListAsync();

        // 获取用户信息
        var userIds2 = items.Select(x => x.UserId).Distinct().ToList();
        var users = await _dbContext.Users
            .Where(u => userIds2.Contains(u.Id))
            .ToDictionaryAsync(u => u.Id);

        var result = items.Select(x =>
        {
            users.TryGetValue(x.UserId, out var user);
            return new ScoreDetailResponse
            {
                Id = x.Id,
                UserId = x.UserId,
                Uid = user?.Uid,
                Nickname = user?.Nickname,
                Mobile = user?.Mobile,
                ChangeMoney = x.ChangeMoney,
                Money = x.Money,
                Type = x.Type,
                Content = x.Content,
                CreatedAt = x.CreatedAt
            };
        }).ToList();

        return new PagedResult<ScoreDetailResponse>
        {
            List = result,
            Total = total,
            Page = request.Page,
            PageSize = request.PageSize
        };
    }

    /// <summary>
    /// 获取充值记录
    /// </summary>
    public async Task<PagedResult<RechargeRecordResponse>> GetRechargeRecordsAsync(FinanceQueryRequest request)
    {
        var query = _dbContext.ProfitPays.AsQueryable();

        // 用户ID过滤
        if (request.UserId.HasValue)
        {
            query = query.Where(p => p.UserId == request.UserId.Value);
        }

        // 手机号过滤
        if (!string.IsNullOrWhiteSpace(request.Mobile))
        {
            var userIds = await _dbContext.Users
                .Where(u => u.Mobile != null && u.Mobile.Contains(request.Mobile))
                .Select(u => u.Id)
                .ToListAsync();
            query = query.Where(p => userIds.Contains(p.UserId));
        }

        // 日期过滤
        if (request.StartDate.HasValue)
        {
            query = query.Where(p => p.CreatedAt >= request.StartDate.Value.Date);
        }
        if (request.EndDate.HasValue)
        {
            query = query.Where(p => p.CreatedAt < request.EndDate.Value.Date.AddDays(1));
        }

        var total = await query.CountAsync();
        var items = await query
            .OrderByDescending(p => p.Id)
            .Skip((request.Page - 1) * request.PageSize)
            .Take(request.PageSize)
            .ToListAsync();

        // 获取用户信息
        var userIds2 = items.Select(x => x.UserId).Distinct().ToList();
        var users = await _dbContext.Users
            .Where(u => userIds2.Contains(u.Id))
            .ToDictionaryAsync(u => u.Id);

        var result = items.Select(x =>
        {
            users.TryGetValue(x.UserId, out var user);
            return new RechargeRecordResponse
            {
                Id = x.Id,
                UserId = x.UserId,
                Uid = user?.Uid,
                Nickname = user?.Nickname,
                Mobile = user?.Mobile,
                OrderNum = x.OrderNum,
                ChangeMoney = x.ChangeMoney,
                Content = x.Content,
                PayType = x.PayType,
                PayTypeName = GetPayTypeName(x.PayType),
                CreatedAt = x.CreatedAt
            };
        }).ToList();

        return new PagedResult<RechargeRecordResponse>
        {
            List = result,
            Total = total,
            Page = request.Page,
            PageSize = request.PageSize
        };
    }

    /// <summary>
    /// 获取支付类型名称
    /// </summary>
    private static string GetPayTypeName(byte payType)
    {
        return payType switch
        {
            0 => "微信支付",
            1 => "支付宝",
            2 => "余额支付",
            3 => "积分支付",
            _ => "其他"
        };
    }
}