package admin_order

import (
	"context"
	"fmt"
	"time"

	"tydata-server/app/main/api/internal/svc"
	"tydata-server/app/main/api/internal/types"

	"github.com/zeromicro/go-zero/core/logx"
)

type AdminGetRevenueStatisticsLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewAdminGetRevenueStatisticsLogic(ctx context.Context, svcCtx *svc.ServiceContext) *AdminGetRevenueStatisticsLogic {
	return &AdminGetRevenueStatisticsLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *AdminGetRevenueStatisticsLogic) AdminGetRevenueStatistics(req *types.AdminGetRevenueStatisticsReq) (resp *types.AdminGetRevenueStatisticsResp, err error) {
	// 获取今日的开始和结束时间
	today := time.Now()
	startOfDay := time.Date(today.Year(), today.Month(), today.Day(), 0, 0, 0, 0, today.Location())
	endOfDay := startOfDay.Add(24 * time.Hour)

	// 构建查询条件
	builder := l.svcCtx.OrderModel.SelectBuilder()

	// 查询总收入金额（status=paid表示已支付）
	totalRevenueBuilder := builder.Where("status = ?", "paid")
	totalRevenueAmount, err := l.svcCtx.OrderModel.FindSum(l.ctx, totalRevenueBuilder, "amount")
	if err != nil {
		logx.Errorf("查询总收入金额失败: %v", err)
		return nil, fmt.Errorf("查询总收入金额失败: %w", err)
	}

	// 查询今日收入金额（status=paid表示已支付，且支付时间为今日）
	todayRevenueBuilder := builder.Where("status = ? AND pay_time >= ? AND pay_time < ?", "paid", startOfDay, endOfDay)
	todayRevenueAmount, err := l.svcCtx.OrderModel.FindSum(l.ctx, todayRevenueBuilder, "amount")
	if err != nil {
		logx.Errorf("查询今日收入金额失败: %v", err)
		return nil, fmt.Errorf("查询今日收入金额失败: %w", err)
	}

	// 查询总成本金额（status=paid表示已支付）
	totalCostBuilder := builder.Where("status = ?", "paid")
	totalCostAmount, err := l.svcCtx.OrderModel.FindSum(l.ctx, totalCostBuilder, "sales_cost")
	if err != nil {
		logx.Errorf("查询总成本金额失败: %v", err)
		return nil, fmt.Errorf("查询总成本金额失败: %w", err)
	}

	// 查询今日成本金额（status=paid表示已支付，且支付时间为今日）
	todayCostBuilder := builder.Where("status = ? AND pay_time >= ? AND pay_time < ?", "paid", startOfDay, endOfDay)
	todayCostAmount, err := l.svcCtx.OrderModel.FindSum(l.ctx, todayCostBuilder, "sales_cost")
	if err != nil {
		logx.Errorf("查询今日成本金额失败: %v", err)
		return nil, fmt.Errorf("查询今日成本金额失败: %w", err)
	}

	// 计算总利润 = 总收入 - 总成本
	totalProfitAmount := totalRevenueAmount - totalCostAmount

	// 计算今日利润 = 今日收入 - 今日成本
	todayProfitAmount := todayRevenueAmount - todayCostAmount

	// 构建响应
	resp = &types.AdminGetRevenueStatisticsResp{
		TotalRevenueAmount: totalRevenueAmount,
		TodayRevenueAmount: todayRevenueAmount,
		TotalProfitAmount:  totalProfitAmount,
		TodayProfitAmount:  todayProfitAmount,
	}

	return resp, nil
}