58 lines
1.5 KiB
TypeScript
58 lines
1.5 KiB
TypeScript
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import { Injectable } from '@nestjs/common'
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import { Prisma } from '../../../generated/prisma/client'
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import { LedgerSourceType } from '../../../generated/prisma/enums'
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@Injectable()
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export class SupplierLedgerWorkflow {
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async updateLedgerBalance(
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tx: Prisma.TransactionClient,
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supplierId: number,
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amount: number,
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sourceId: number,
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sourceType: LedgerSourceType,
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) {
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const lastSupplierLedgerBalance = await tx.supplierLedger
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.findFirstOrThrow({
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where: { supplierId },
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orderBy: { createdAt: 'desc' },
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})
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.then(sl => (sl ? sl.balance : 0))
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let newBalance = Number(lastSupplierLedgerBalance)
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let credit = 0
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let debit = 0
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let description = ''
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switch (sourceType) {
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case 'PURCHASE':
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newBalance += amount
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credit = amount
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description = `خرید به مبلغ ${amount} بابت خرید شماره ${sourceId}`
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break
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case 'REFUND':
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case 'PAYMENT':
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newBalance -= amount
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debit = amount
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description = `پرداخت به مبلغ ${amount} بابت پرداخت شماره ${sourceId}`
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break
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case 'ADJUSTMENT':
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newBalance = amount
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description = `اصلاح حساب به مبلغ ${amount} بابت پرداخت شماره ${sourceId}`
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break
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}
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return await tx.supplierLedger.create({
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data: {
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supplierId,
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debit,
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credit,
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balance: newBalance,
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sourceId,
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sourceType,
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description,
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},
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})
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}
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}
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