From cae2df6bdc3c3590df32bf7431a617177be30429 Mon Sep 17 00:00:00 2001
From: Chocobozzz <me@florianbigard.com>
Date: Fri, 12 Mar 2021 10:22:17 +0100
Subject: Stricter email options typings

---
 server/lib/emailer.ts                 | 53 ++++++++++++++++-------------------
 shared/models/server/emailer.model.ts | 53 +++++++++++++++++++++++++++++------
 2 files changed, 69 insertions(+), 37 deletions(-)

diff --git a/server/lib/emailer.ts b/server/lib/emailer.ts
index 187d4e86d..ce4134d59 100644
--- a/server/lib/emailer.ts
+++ b/server/lib/emailer.ts
@@ -7,7 +7,7 @@ import { MVideoBlacklistLightVideo, MVideoBlacklistVideo } from '@server/types/m
 import { MVideoImport, MVideoImportVideo } from '@server/types/models/video/video-import'
 import { SANITIZE_OPTIONS, TEXT_WITH_HTML_RULES } from '@shared/core-utils'
 import { AbuseState, EmailPayload, UserAbuse } from '@shared/models'
-import { SendEmailOptions } from '../../shared/models/server/emailer.model'
+import { SendEmailDefaultOptions } from '../../shared/models/server/emailer.model'
 import { isTestInstance, root } from '../helpers/core-utils'
 import { bunyanLogger, logger } from '../helpers/logger'
 import { CONFIG, isEmailEnabled } from '../initializers/config'
@@ -473,13 +473,10 @@ class Emailer {
   }
 
   addNewPeerTubeVersionNotification (to: string[], latestVersion: string) {
-    const subject = `A new PeerTube version is available: ${latestVersion}`
-
     const emailPayload: EmailPayload = {
       to,
       template: 'peertube-version-new',
-      subject,
-      text: subject,
+      subject: `A new PeerTube version is available: ${latestVersion}`,
       locals: {
         latestVersion
       }
@@ -491,13 +488,10 @@ class Emailer {
   addNewPlugionVersionNotification (to: string[], plugin: MPlugin) {
     const pluginUrl = WEBSERVER.URL + '/admin/plugins/list-installed?pluginType=' + plugin.type
 
-    const subject = `A new plugin/theme version is available: ${plugin.name}@${plugin.latestVersion}`
-
     const emailPayload: EmailPayload = {
       to,
       template: 'plugin-version-new',
-      subject,
-      text: subject,
+      subject: `A new plugin/theme version is available: ${plugin.name}@${plugin.latestVersion}`,
       locals: {
         pluginName: plugin.name,
         latestVersion: plugin.latestVersion,
@@ -605,26 +599,27 @@ class Emailer {
     })
 
     for (const to of options.to) {
-      await email
-        .send(merge(
-          {
-            template: 'common',
-            message: {
-              to,
-              from: options.from,
-              subject: options.subject,
-              replyTo: options.replyTo
-            },
-            locals: { // default variables available in all templates
-              WEBSERVER,
-              EMAIL: CONFIG.EMAIL,
-              instanceName: CONFIG.INSTANCE.NAME,
-              text: options.text,
-              subject: options.subject
-            }
-          },
-          options // overriden/new variables given for a specific template in the payload
-        ) as SendEmailOptions)
+      const baseOptions: SendEmailDefaultOptions = {
+        template: 'common',
+        message: {
+          to,
+          from: options.from,
+          subject: options.subject,
+          replyTo: options.replyTo
+        },
+        locals: { // default variables available in all templates
+          WEBSERVER,
+          EMAIL: CONFIG.EMAIL,
+          instanceName: CONFIG.INSTANCE.NAME,
+          text: options.text,
+          subject: options.subject
+        }
+      }
+
+      // overriden/new variables given for a specific template in the payload
+      const sendOptions = merge(baseOptions, options)
+
+      await email.send(sendOptions)
         .then(res => logger.debug('Sent email.', { res }))
         .catch(err => logger.error('Error in email sender.', { err }))
     }
diff --git a/shared/models/server/emailer.model.ts b/shared/models/server/emailer.model.ts
index 069ef0bab..39512d306 100644
--- a/shared/models/server/emailer.model.ts
+++ b/shared/models/server/emailer.model.ts
@@ -1,12 +1,49 @@
-export type SendEmailOptions = {
-  to: string[]
+type From = string | { name?: string, address: string }
 
-  template?: string
+interface Base extends Partial<SendEmailDefaultMessageOptions> {
+  to: string[] | string
+}
+
+interface MailTemplate extends Base {
+  template: string
   locals?: { [key: string]: any }
+  text?: undefined
+}
+
+interface MailText extends Base {
+  text: string
 
-  // override defaults
-  subject?: string
-  text?: string
-  from?: string | { name?: string, address: string }
-  replyTo?: string
+  locals?: Partial<SendEmailDefaultLocalsOptions> & {
+    title?: string
+    action?: {
+      url: string
+      text: string
+    }
+  }
 }
+
+interface SendEmailDefaultLocalsOptions {
+  instanceName: string
+  text: string
+  subject: string
+}
+
+interface SendEmailDefaultMessageOptions {
+  to: string[] | string
+  from: From
+  subject: string
+  replyTo: string
+}
+
+export type SendEmailDefaultOptions = {
+  template: 'common'
+
+  message: SendEmailDefaultMessageOptions
+
+  locals: SendEmailDefaultLocalsOptions & {
+    WEBSERVER: any
+    EMAIL: any
+  }
+}
+
+export type SendEmailOptions = MailTemplate | MailText
-- 
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