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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 | import { GetObjectCommand, PutObjectCommand, S3Client } from '@aws-sdk/client-s3'; import { SESv2Client, SendEmailCommand } from '@aws-sdk/client-sesv2'; import PDFDocument from 'pdfkit'; import twilio from 'twilio'; import { RecordInstance } from 'twilio/lib/rest/api/v2010/account/usage/record'; import { getTwilioSecret } from '@/deprecated/utils/general'; import { Department } from '@/types/api/departments'; import { Invoice, InvoiceItem } from '@/types/api/invoices'; import { TypedScanInput } from '@/types/backend/dynamo'; import { BUCKET_EMAIL, EMAIL_SOURCE, TABLE_DEPARTMENT, TABLE_INVOICE } from '@/types/backend/environment'; import { typedPutItem, typedScan } from '@/utils/backend/dynamoTyped'; import { BILLING_EMAIL_ADDRESS, FORWARD_EMAIL_TO, PAY_TO_ADDRESS_LINE_1, PAY_TO_ADDRESS_LINE_2, PAY_TO_NAME } from '@/utils/backend/hidden-constants'; import { getLogger } from '@/utils/common/logger'; const logger = getLogger('resources/generateInvoices'); const s3 = new S3Client(); const ses = new SESv2Client(); interface InvoiceData { invoiceNumber: string; issueDate: string; dueDate: string; startDate: string; endDate: string; invoiceMonth: string; clientName: string; lineItems: { description: string; quantity: string; totalPrice: number; }[]; } const twilioCategoryLabels: { [key: string]: string } = { 'phonenumbers': 'Phone Numbers', 'sms-outbound': 'Outbound SMS', 'mms-outbound': 'Outbound MMS', 'sms-inbound': 'Inbound SMS', 'mms-inbound': 'Inbound MMS', 'sms-messages-carrierfees': 'SMS Carrier Fees', 'mms-messages-carrierfees': 'MMS Carrier Fees', 'calls-inbound': 'Inbound Calls', 'amazon-polly': 'Amazon Polly TTS', }; const twilioCategorySkips: string[] = [ 'calls', 'mms', 'sms', 'channels', ]; const monthLabels: string[] = [ 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December', ]; function parseTwilioItems( items: RecordInstance[] ): InvoiceItem[] { return items // .filter(item => typeof twilioCategoryLabels[item.category] !== 'undefined') .filter(item => Number(item.price) > 0) .filter(item => !twilioCategorySkips.includes(item.category) && ( typeof twilioCategoryLabels[item.category] !== 'undefined' || !Object.keys(twilioCategoryLabels).some(k => item.category.startsWith(k)) )) .map(item => ({ type: 'twilio', cat: twilioCategoryLabels[item.category] || item.category, price: Number(item.price), usage: Number(item.usage), usageUnit: item.usageUnit, start: item.startDate, end: item.endDate, })); } async function generateInvoice(data: InvoiceData): Promise<[Buffer, number]> { const doc = new PDFDocument({ margin: 50, }); const chunks: unknown[] = []; doc.on('data', chunk => chunks.push(chunk)); const pdfPromise: Promise<Buffer> = new Promise(resolve => { doc.on('end', () => resolve(Buffer.concat(chunks as Uint8Array[]))); }); doc.fontSize(24).text('COFRN Invoice', { align: 'center', }); doc.moveDown(); // Header Information doc.fontSize(16) .text('Make Payment To', { align: 'left', continued: true, }) .text('Bill To', { align: 'right', }); doc.fontSize(12); doc .text(PAY_TO_NAME, { align: 'left', continued: true, }) .text(data.clientName, { align: 'right', }) .text(PAY_TO_ADDRESS_LINE_1, { align: 'left', continued: true, }) .text(`Invoice Number: ${data.invoiceNumber}`, { align: 'right', }) .text(PAY_TO_ADDRESS_LINE_2, { align: 'left', continued: true, }) .text(`Issue Date: ${data.issueDate}`, { align: 'right', }) .text(`Due Date: ${data.dueDate}`, { align: 'right', }); // Line Items Table doc.moveDown(); let totalAmount = 0; doc.table({ defaultStyle: { align: { x: 'left', y: 'center', }, borderColor: 'gray', border: 0, }, rowStyles: { border: { bottom: 1, }, }, data: [ [ { text: 'Item', border: { bottom: 2, }, borderColor: 'black', align: { x: 'center', }, }, { text: 'Quantity', border: { bottom: 2, }, borderColor: 'black', align: { x: 'center', }, }, { text: 'Price', border: { bottom: 2, }, borderColor: 'black', align: { x: 'center', }, }, ], ...data.lineItems .sort((a, b) => a.totalPrice > b.totalPrice ? -1 : 1) .map(item => { item.totalPrice = Math.round(item.totalPrice * 100) / 100 || 0; totalAmount += item.totalPrice; const row: Array<string | PDFKit.Mixins.CellOptions> = [ item.description, item.quantity, { text: `$${item.totalPrice.toFixed(2)}`, align: { x: 'right', }, }, ]; return row; }), ], }); doc.moveDown(); doc.fontSize(16).text(`Total: $${totalAmount.toFixed(2)}`, { align: 'right', }); doc.moveDown(); doc.fontSize(12).text(`Invoice for expenses from ${data.startDate} to ${data.endDate}`, { align: 'center', }); doc.end(); const pdfRaw = await pdfPromise; return [ pdfRaw, totalAmount, ]; } export async function main() { logger.trace('main', ...arguments); // Get the timeframe that we should use let endDate = new Date(); endDate.setUTCMilliseconds(0); endDate.setUTCSeconds(0); endDate.setUTCMinutes(0); endDate.setUTCHours(0); endDate.setUTCDate(1); const startDate = new Date(endDate.getTime() - (24 * 60 * 60 * 1000)); startDate.setUTCDate(1); endDate = new Date(endDate.getTime() - 1000); const startDateAnnual = new Date(startDate.getTime()); startDateAnnual.setUTCMonth(0); // Determine the departments to invoice const departmentsScanInput: TypedScanInput<Department> = { TableName: TABLE_DEPARTMENT(), ExpressionAttributeNames: { '#invoiceFrequency': 'invoiceFrequency', }, ExpressionAttributeValues: { ':monthly': 'monthly', }, FilterExpression: '#invoiceFrequency = :monthly', }; if (new Date().getUTCMonth() === 0) { departmentsScanInput.ExpressionAttributeValues![':annually'] = 'annually'; departmentsScanInput.FilterExpression += ' OR #invoiceFrequency = :annually'; } // Get the departments to generate invoices for const departmentsToInvoice = await typedScan<Department>(departmentsScanInput); if (!departmentsToInvoice.Items) { logger.warn('No departments to invoice'); return; } // Get the Twilio auth information const twilioSecret = await getTwilioSecret(); await Promise.all(departmentsToInvoice.Items.map(async department => { const accountSid = twilioSecret[`accountSid${department.id}` as keyof typeof twilioSecret]; const authToken = twilioSecret[`authToken${department.id}` as keyof typeof twilioSecret]; if ( typeof accountSid === 'undefined' || typeof authToken === 'undefined' ) { throw new Error(`Unable to find auth for account ${department.id}`); } // Get the twilio cost information const twilioData: InvoiceItem[] = await new Promise((res, rej) => { twilio(accountSid, authToken).api.v2010.account.usage.records .list({ includeSubaccounts: true, startDate: department.invoiceFrequency === 'annually' ? startDateAnnual : startDate, endDate: endDate, pageSize: 1000, }, (err, items) => err ? rej(err) : res(parseTwilioItems(items))); }); const totalPriceTwilio = twilioData.reduce((acc, item) => { if (item.cat === 'totalprice') { return Math.round(item.price * 100) / 100; } return acc; }, 0); const issueDate = new Date(); const dueDate = new Date(issueDate.getTime() + (30 * 24 * 60 * 60 * 1000)); const invoiceConfig: InvoiceData = { invoiceNumber: `${startDate.getUTCFullYear()}-${monthLabels[startDate.getUTCMonth()].slice(0,3).toUpperCase()}-${department.id.toUpperCase()}`, issueDate: issueDate.toISOString().split('T')[0], dueDate: dueDate.toISOString().split('T')[0], startDate: startDate.toISOString().split('T')[0], endDate: endDate.toISOString().split('T')[0], invoiceMonth: `${monthLabels[startDate.getUTCMonth()]} ${startDate.getUTCFullYear()}`, clientName: department.name || 'Unknown Department', lineItems: twilioData.filter(item => item.cat !== 'totalprice').map(item => ({ description: item.cat, quantity: `${item.usage} ${item.usageUnit}`, totalPrice: item.price, })), }; const [ pdf, totalPriceComputed, ] = await generateInvoice(invoiceConfig); const invoiceS3Key = `invoices/invoice-${invoiceConfig.invoiceNumber}.pdf`; const dynamoPromise = typedPutItem<Invoice>({ TableName: TABLE_INVOICE(), Item: { id: invoiceConfig.invoiceNumber, department: department.id, total: totalPriceComputed, startDate: invoiceConfig.startDate, endDate: invoiceConfig.endDate, generatedDate: invoiceConfig.issueDate, s3Location: invoiceS3Key, }, }); await s3.send(new PutObjectCommand({ Bucket: BUCKET_EMAIL(), Key: invoiceS3Key, Body: pdf, ContentType: 'application/pdf', })); const pdfBodyS3 = await s3.send(new GetObjectCommand({ Bucket: BUCKET_EMAIL(), Key: invoiceS3Key, })); if (typeof pdfBodyS3.Body === 'undefined') { throw new Error('Unable to retrieve PDF from S3 after upload'); } const pdfBody = await pdfBodyS3.Body.transformToByteArray(); const wasError = Math.abs(totalPriceComputed - totalPriceTwilio) > 0.005; if (wasError) { logger.warn(`Price discrepancy for department ${department.id}: Twilio total ${totalPriceTwilio}, Computed total ${totalPriceComputed}`); } await ses.send(new SendEmailCommand({ Destination: { ToAddresses: wasError ? [] : department.invoiceEmail || [], BccAddresses: [ FORWARD_EMAIL_TO, ], }, FromEmailAddress: `COFRN Billing <${BILLING_EMAIL_ADDRESS}>`, FromEmailAddressIdentityArn: EMAIL_SOURCE(), Content: { Simple: { Subject: { Data: `${wasError ? '***' : ''}[COFRN] ${department.name || 'Unknown Department'} ${department.invoiceFrequency === 'annually' ? startDate.getUTCFullYear() : monthLabels[startDate.getUTCMonth()]} Invoice${wasError ? '***' : ''}`, }, Body: { Text: { Data: `Please find attached the invoice for ${department.name}'s COFRN usage for the ${department.invoiceFrequency === 'annually' ? `year of ${startDateAnnual.getUTCFullYear()}` : `month of ${invoiceConfig.invoiceMonth}` }. If you have any questions about this invoice, please reply to this email.${wasError ? `\n\n***\n\nNote: There is a discrepancy between the total price on the invoice and the total price from Twilio. Twilio: ${totalPriceTwilio}, Computed: ${totalPriceComputed}***` : ''}`, }, }, Attachments: [ { FileName: `${invoiceConfig.invoiceNumber}.pdf`, ContentType: 'application/pdf', ContentDisposition: 'ATTACHMENT', ContentTransferEncoding: 'BASE64', RawContent: new Uint8Array(pdfBody), }, ], }, }, })); await dynamoPromise.catch(e => logger.error('Error saving invoice in dynamo', e)); })); } |