package services

import (
	m "platform/web/models"

	"github.com/shopspring/decimal"
)

var Bill = &billService{}

type billService struct{}

func (s *billService) GenNo() string {
	return ID.GenReadable("bil")
}

func newForRecharge(uid int32, billNo string, info string, amount decimal.Decimal, trade *m.Trade) *m.Bill {
	return &m.Bill{
		UserID:  uid,
		BillNo:  billNo,
		TradeID: &trade.ID,
		Type:    m.BillTypeRecharge,
		Info:    &info,
		Amount:  amount,
	}
}

func newForConsume(uid int32, billNo string, info string, amount decimal.Decimal, resource *m.Resource, trade ...*m.Trade) *m.Bill {
	var bill = &m.Bill{
		UserID:     uid,
		BillNo:     billNo,
		ResourceID: &resource.ID,
		Type:       m.BillTypeConsume,
		Info:       &info,
		Amount:     amount,
	}

	if len(trade) > 0 {
		bill.TradeID = &trade[0].ID
	}

	return bill
}