152 lines
3.5 KiB
TypeScript
152 lines
3.5 KiB
TypeScript
import { PrismaClient } from "@prisma/client"
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import InvoiceItem from "./InvoiceItem"
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class Invoice {
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/**
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* 创建新的收据实体
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* @param suffixCode 收据 ID
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* @param issueDate 签发时间
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* @param newInvoiceInfo 新收据信息
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* @returns 新的收据实体
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*
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*/
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constructor(suffixCode: number, issueDate: Date, period: Date[], items: InvoiceItem[], dueDate: Date, payer: { id: number; name: string; address: string; abn?: string; email?: string }) {
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// 设置收据后缀
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this.suffixCode = suffixCode
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// 设置签发时间
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this.issueTime = issueDate
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// 设置账单周期
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// 首先验证周期有两个日期，且第一个日期早于第二个日期
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if (period.length !== 2) throw new Error('Period should have two dates.')
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if (period[0] > period[1]) throw new Error('The first date should be earlier than the second date.')
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this.period = period
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// 设置项目列表
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this.items = items
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// 设置收款日期
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this.dueDate = dueDate
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// 设置付款人
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this.payer = payer
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}
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/**
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* 收据后缀。仅在当日唯一。
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*/
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suffixCode: number;
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/**
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* 签发时间。与后缀一起构成发票的唯一标识。
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*/
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issueTime: Date;
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/**
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* 账单周期
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*/
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period: Date[]
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/**
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* 项目列表
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*/
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items: InvoiceItem[]
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/**
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* 收款日期
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*/
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dueDate: Date
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/**
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* 付款人
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*/
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payer: {
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id: number
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name: string
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address: string
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abn?: string
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email?: string
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}
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/**
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* 备注
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*/
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note?: string;
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/**
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* 获取账单总额
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*/
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getTotal() {
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let total = 0
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this.items.forEach((item) => {
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total += item.getSubtotal()
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})
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return total
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}
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/**
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* 更改备注
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* @param note 新的备注
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*/
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async setNote(note: string) {
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this.note = note
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}
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/**
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* 保存收据到数据库
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* @param prisma Prisma 客户端
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*/
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async save(prisma: PrismaClient) {
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if (this.suffixCode === 0) {
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// 创建新收据
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// 获取当天最大收据后缀
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const today = new Date()
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const todayStart = new Date(today.getFullYear(), today.getMonth(), today.getDate())
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const todayEnd = new Date(today.getFullYear(), today.getMonth(), today.getDate() + 1)
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const maxSuffix = await prisma.invoice.findFirst({
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where: {
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AND: [
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{ invoice_date: { gte: todayStart } },
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{ invoice_date: { lt: todayEnd } }
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]
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},
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orderBy: {
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invoice_suffix_code: 'desc'
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}
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})
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// 更新收据后缀
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this.suffixCode = maxSuffix ? maxSuffix.invoice_suffix_code + 1 : 1
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// 在数据库中创建新收据
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const newInvoice = await prisma.invoice.create({
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data: {
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invoice_suffix_code: maxSuffix ? maxSuffix.invoice_suffix_code + 1 : 1,
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invoice_date: this.issueTime,
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invoice_billing_period_start: this.period[0],
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invoice_billing_period_end: this.period[1],
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invoice_due_date: this.dueDate,
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payer_id: this.payer.id,
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invoice_payer_address: this.payer.address,
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invoice_payer_name: this.payer.name,
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invoice_payer_abn: this.payer.abn,
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invoice_note: this.note,
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invoice_total_amount: this.getTotal()
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}
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})
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// 保存收据项目
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await Promise.all(this.items.map(async (item) => {
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await prisma.invoiceItem.create({
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data: {
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invoice_date: this.issueTime,
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invoice_suffix_code: newInvoice.invoice_suffix_code,
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item_id: item.id,
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item_description: item.description ?? '',
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item_quantity: item.quantity ?? 0,
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item_unit: item.unit ?? '',
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item_unit_price: item.unitPrice ? item.unitPrice.toNumber() : 0,
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}
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})
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}))
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}
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}
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}
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export default Invoice |