package model

import (
	"SciencesServer/app/common/model"
	"SciencesServer/serve/orm"
	"fmt"
)

type UserBill struct {
	*model.UserBill
}

// UserBillInfo 用户账单信息
type UserBillInfo struct {
	model.Model
	model.BillInstanceBasic
}

// Bill 账单信息
func (m *UserBill) Bill(page, pageSize int, count *int64, where ...*model.ModelWhere) ([]*UserBillInfo, error) {
	db := orm.GetDB().Table(m.TableName()+" AS u").
		Select("u.id", "b.order_no", "b.kind", "b.amount", "b.number", "b.status", "b.remark").
		Joins(fmt.Sprintf("LEFT JOIN %s AS b ON u.bill_id = b.id",
			model.NewBillInstance().TableName())).
		Where("u.is_deleted = ?", model.DeleteStatusForNot)

	if len(where) > 0 {
		for _, v := range where {
			db = db.Where(v.Condition, v.Value)
		}
	}
	out := make([]*UserBillInfo, 0)

	if err := db.Count(count).Error; err != nil {
		return nil, err
	}
	if err := db.Order("u.id " + model.OrderModeToDesc).Offset((page - 1) * pageSize).Limit(pageSize).Scan(&out).Error; err != nil {
		return nil, err
	}
	return out, nil
}

func NewUserBill() *UserBill {
	return &UserBill{model.NewUserBill()}
}