⚗️ Implement chat API

apps/viewer/src/features/blocks/integrations/sendEmail/api/constants.ts

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+export const defaultTransportOptions = {
+  host: process.env.SMTP_HOST,
+  port: Number(process.env.SMTP_PORT),
+  secure: process.env.SMTP_SECURE ? process.env.SMTP_SECURE === 'true' : false,
+  auth: {
+    user: process.env.SMTP_USERNAME,
+    pass: process.env.SMTP_PASSWORD,
+  },
+}
+
+export const defaultFrom = {
+  name: process.env.SMTP_FROM?.split(' <')[0].replace(/"/g, ''),
+  email: process.env.SMTP_FROM?.match(/<(.*)>/)?.pop(),
+}

apps/viewer/src/features/blocks/integrations/sendEmail/api/index.ts

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+export { executeSendEmailBlock } from './utils/executeSendEmailBlock'

apps/viewer/src/features/blocks/integrations/sendEmail/api/utils/executeSendEmailBlock.tsx

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+import { getLinkedTypebots } from '@/features/blocks/logic/typebotLink/api'
+import { ExecuteIntegrationResponse } from '@/features/chat'
+import { saveErrorLog, saveSuccessLog } from '@/features/logs/api'
+import { parseVariables } from '@/features/variables'
+import prisma from '@/lib/prisma'
+import { render } from '@faire/mjml-react/dist/src/utils/render'
+import { DefaultBotNotificationEmail } from 'emails'
+import {
+  PublicTypebot,
+  ResultValues,
+  SendEmailBlock,
+  SendEmailOptions,
+  SessionState,
+  SmtpCredentialsData,
+} from 'models'
+import { createTransport } from 'nodemailer'
+import Mail from 'nodemailer/lib/mailer'
+import { byId, isEmpty, isNotDefined, omit, parseAnswers } from 'utils'
+import { decrypt } from 'utils/api'
+import { defaultFrom, defaultTransportOptions } from '../constants'
+
+export const executeSendEmailBlock = async (
+  { result, typebot }: SessionState,
+  block: SendEmailBlock
+): Promise<ExecuteIntegrationResponse> => {
+  const { options } = block
+  const { variables } = typebot
+  await sendEmail({
+    typebotId: typebot.id,
+    resultId: result.id,
+    credentialsId: options.credentialsId,
+    recipients: options.recipients.map(parseVariables(variables)),
+    subject: parseVariables(variables)(options.subject ?? ''),
+    body: parseVariables(variables)(options.body ?? ''),
+    cc: (options.cc ?? []).map(parseVariables(variables)),
+    bcc: (options.bcc ?? []).map(parseVariables(variables)),
+    replyTo: options.replyTo
+      ? parseVariables(variables)(options.replyTo)
+      : undefined,
+    fileUrls:
+      variables.find(byId(options.attachmentsVariableId))?.value ?? undefined,
+    isCustomBody: options.isCustomBody,
+    isBodyCode: options.isBodyCode,
+  })
+  return { outgoingEdgeId: block.outgoingEdgeId }
+}
+
+const sendEmail = async ({
+  typebotId,
+  resultId,
+  credentialsId,
+  recipients,
+  body,
+  subject,
+  cc,
+  bcc,
+  replyTo,
+  isBodyCode,
+  isCustomBody,
+  fileUrls,
+}: SendEmailOptions & {
+  typebotId: string
+  resultId: string
+  fileUrls?: string
+}) => {
+  const { name: replyToName } = parseEmailRecipient(replyTo)
+
+  const { host, port, isTlsEnabled, username, password, from } =
+    (await getEmailInfo(credentialsId)) ?? {}
+  if (!from) return
+
+  const transportConfig = {
+    host,
+    port,
+    secure: isTlsEnabled ?? undefined,
+    auth: {
+      user: username,
+      pass: password,
+    },
+  }
+
+  const emailBody = await getEmailBody({
+    body,
+    isCustomBody,
+    isBodyCode,
+    typebotId,
+    resultId,
+  })
+
+  if (!emailBody) {
+    await saveErrorLog({
+      resultId,
+      message: 'Email not sent',
+      details: {
+        transportConfig,
+        recipients,
+        subject,
+        cc,
+        bcc,
+        replyTo,
+        emailBody,
+      },
+    })
+  }
+  const transporter = createTransport(transportConfig)
+  const fromName = isEmpty(replyToName) ? from.name : replyToName
+  const email: Mail.Options = {
+    from: fromName ? `"${fromName}" <${from.email}>` : from.email,
+    cc,
+    bcc,
+    to: recipients,
+    replyTo,
+    subject,
+    attachments: fileUrls?.split(', ').map((url) => ({ path: url })),
+    ...emailBody,
+  }
+  try {
+    const info = await transporter.sendMail(email)
+    await saveSuccessLog({
+      resultId,
+      message: 'Email successfully sent',
+      details: {
+        transportConfig: {
+          ...transportConfig,
+          auth: { user: transportConfig.auth.user, pass: '******' },
+        },
+        email,
+      },
+    })
+  } catch (err) {
+    await saveErrorLog({
+      resultId,
+      message: 'Email not sent',
+      details: {
+        transportConfig: {
+          ...transportConfig,
+          auth: { user: transportConfig.auth.user, pass: '******' },
+        },
+        email,
+        error: err,
+      },
+    })
+  }
+}
+
+const getEmailInfo = async (
+  credentialsId: string
+): Promise<SmtpCredentialsData | undefined> => {
+  if (credentialsId === 'default')
+    return {
+      host: defaultTransportOptions.host,
+      port: defaultTransportOptions.port,
+      username: defaultTransportOptions.auth.user,
+      password: defaultTransportOptions.auth.pass,
+      isTlsEnabled: undefined,
+      from: defaultFrom,
+    }
+  const credentials = await prisma.credentials.findUnique({
+    where: { id: credentialsId },
+  })
+  if (!credentials) return
+  return decrypt(credentials.data, credentials.iv) as SmtpCredentialsData
+}
+
+const getEmailBody = async ({
+  body,
+  isCustomBody,
+  isBodyCode,
+  typebotId,
+  resultId,
+}: {
+  typebotId: string
+  resultId: string
+} & Pick<SendEmailOptions, 'isCustomBody' | 'isBodyCode' | 'body'>): Promise<
+  { html?: string; text?: string } | undefined
+> => {
+  if (isCustomBody || (isNotDefined(isCustomBody) && !isEmpty(body)))
+    return {
+      html: isBodyCode ? body : undefined,
+      text: !isBodyCode ? body : undefined,
+    }
+  const typebot = (await prisma.publicTypebot.findUnique({
+    where: { typebotId },
+  })) as unknown as PublicTypebot
+  if (!typebot) return
+  const linkedTypebots = await getLinkedTypebots(typebot)
+  const resultValues = (await prisma.result.findUnique({
+    where: { id: resultId },
+    include: { answers: true },
+  })) as ResultValues | null
+  if (!resultValues) return
+  const answers = parseAnswers(typebot, linkedTypebots)(resultValues)
+  return {
+    html: render(
+      <DefaultBotNotificationEmail
+        resultsUrl={`${process.env.NEXTAUTH_URL}/typebots/${typebot.id}/results`}
+        answers={omit(answers, 'submittedAt')}
+      />
+    ).html,
+  }
+}
+
+const parseEmailRecipient = (
+  recipient?: string
+): { email?: string; name?: string } => {
+  if (!recipient) return {}
+  if (recipient.includes('<')) {
+    const [name, email] = recipient.split('<')
+    return {
+      name: name.replace(/>/g, '').trim().replace(/"/g, ''),
+      email: email.replace('>', '').trim(),
+    }
+  }
+  return {
+    email: recipient,
+  }
+}