feat: add COS integration for uploading generated invoices to cloud storage

backend/package.json

@@ -26,6 +26,7 @@
 	"description": "",
 	"dependencies": {
 		"@prisma/client": "^6.2.1",
+		"cos-nodejs-sdk-v5": "^2.14.6",
 		"dayjs": "^1.11.13",
 		"debug": "^4.4.0",
 		"decimal.js": "^10.4.3",

backend/src/func/issueInvoice.ts

@@ -9,6 +9,7 @@ import handlebars from 'handlebars'
 import puppeteer from 'puppeteer'
 import nodemailer from 'nodemailer'
 import marked from 'marked'
+import COS from 'cos-nodejs-sdk-v5'
 
 console.log = Debug('invoiceIssuer:func/issueInvoice.ts')
 
@@ -153,4 +154,16 @@ export default async (prisma: PrismaClient, payerId: number, period: Date[], ite
 		]
 	}
 	await transporter.sendMail(mailOptions)
+
+	// 上传到 COS
+	const cos = new COS({
+		SecretId: process.env.COS_USER,
+		SecretKey: process.env.COS_PASS
+	})
+	await cos.putObject({
+		Bucket: process.env.COS_BUCKET || '',
+		Region: process.env.COS_REGION || '',
+		Key: `${invoiceNumber}.pdf`,
+		Body: invoiceBuffer
+	})
 }