package agent

import (
	"context"
	"ycc-server/app/main/model"
	"ycc-server/common/ctxdata"
	"ycc-server/common/globalkey"
	"ycc-server/common/xerr"
	"ycc-server/pkg/lzkit/crypto"

	"github.com/pkg/errors"

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

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

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

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

func (l *GetRebateListLogic) GetRebateList(req *types.GetRebateListReq) (resp *types.GetRebateListResp, err error) {
	userID, err := ctxdata.GetUidFromCtx(l.ctx)
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "获取用户信息失败, %v", err)
	}

	// 1. 获取代理信息
	agent, err := l.svcCtx.AgentModel.FindOneByUserId(l.ctx, userID)
	if err != nil {
		if errors.Is(err, model.ErrNotFound) {
			return nil, errors.Wrapf(xerr.NewErrMsg("您不是代理"), "")
		}
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "查询代理信息失败, %v", err)
	}

	// 2. 构建查询条件
	builder := l.svcCtx.AgentRebateModel.SelectBuilder().
		Where("agent_id = ? AND del_state = ?", agent.Id, globalkey.DelStateNo)

	// 如果指定了返佣类型，则按类型筛选（1, 2, 3）
	if req.RebateType != nil {
		builder = builder.Where("rebate_type = ?", *req.RebateType)
	}

	builder = builder.OrderBy("create_time DESC")

	// 3. 分页查询
	page := req.Page
	if page <= 0 {
		page = 1
	}
	pageSize := req.PageSize
	if pageSize <= 0 {
		pageSize = 20
	}
	offset := (page - 1) * pageSize

	// 4. 查询总数
	total, err := l.svcCtx.AgentRebateModel.FindCount(l.ctx, builder, "id")
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "查询返佣总数失败, %v", err)
	}

	// 5. 查询列表
	builder = builder.Limit(uint64(pageSize)).Offset(uint64(offset))
	rebates, err := l.svcCtx.AgentRebateModel.FindAll(l.ctx, builder, "")
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "查询返佣列表失败, %v", err)
	}

	// 6. 组装响应
	var list []types.RebateItem
	for _, rebate := range rebates {
		// 查询订单号
		orderNo := ""
		if rebate.OrderId != "" {
			order, err := l.svcCtx.OrderModel.FindOne(l.ctx, rebate.OrderId)
			if err == nil {
				orderNo = order.OrderNo
			}
		}

		// 查询来源代理手机号和等级
		sourceAgentMobile := ""
		sourceAgentLevel := int64(0)
		if rebate.SourceAgentId != "" {
			sourceAgent, err := l.svcCtx.AgentModel.FindOne(l.ctx, rebate.SourceAgentId)
			if err == nil {
				if sourceAgent.Mobile != "" {
					decrypted, err := crypto.DecryptMobile(sourceAgent.Mobile, l.svcCtx.Config.Encrypt.SecretKey)
					if err == nil {
						sourceAgentMobile = decrypted
					}
				}
				sourceAgentLevel = sourceAgent.Level
			}
		}

		list = append(list, types.RebateItem{
			Id:                rebate.Id,
			SourceAgentId:     rebate.SourceAgentId,
			SourceAgentMobile: sourceAgentMobile,
			SourceAgentLevel:  sourceAgentLevel,
			OrderId:           rebate.OrderId,
			OrderNo:           orderNo,
			RebateType:        rebate.RebateType,
			Amount:            rebate.RebateAmount,
			CreateTime:        rebate.CreateTime.Format("2006-01-02 15:04:05"),
		})
	}

	return &types.GetRebateListResp{
		Total: total,
		List:  list,
	}, nil
}