feat(summary): add url to grafana dashboard in summary email content

.env.example

@@ -11,6 +11,9 @@ export TO='jane.doe@gmail.com'
 export SUMMARY_DAY='SUNDAY'
 export SUMMARY_HOUR='16'
 
+# URL to your Grafana dashboard
+export GRAFANA_URL='https://my.grafana.com'
+
 # go to https://ipinfo.io/ for more details
 export IP_INFOS_TOKEN='00000000000000'
 

src/Summary.js

@@ -4,18 +4,18 @@ import { Config } from './utils/Config.js';
 import DateHelper from './helpers/DateHelper.js';
 import Database from './utils/Database.js';
 import SpamController from './controllers/SpamController.js';
-import Mailer from './Mailer.js';
+import Mailer from './utils/Mailer.js';
 import { ConsoleHelper, EOL, Tags } from './helpers/ConsoleHelper.js';
 
 class Summary {
   async sendSummary() {
     const config = Config.getConfig();
     const todayDay = dayjs().day();
 
-    if (DateHelper.getDayNumber(config.summary.DAY) === todayDay) {
+    if (DateHelper.getDayNumber(config.summary.day) === todayDay) {
       const currentHour = dayjs().hour();
 
-      if (config.summary.HOUR === currentHour) {
+      if (config.summary.hour === currentHour) {
         const database = new Database();
         const client = await database.connect({ sshTunnel: true });
 
@@ -28,12 +28,12 @@ class Summary {
 
         const mailer = new Mailer();
         await mailer.sendMail({
-          from: config.email.FROM,
-          to: config.email.TO,
+          from: config.email.from,
+          to: config.email.to,
           subject: `Weekly Summary Report`,
           html: `<div style="font-size: 16px;font-family: 'Arial';">
                   <p>This week, <strong>${total} spam email${plural}</strong> have been successfully deleted.</p>
-                  <p>Complete and detailed logs are available if you need more insight on spam addresses that have been removed.</p>
+                  <p>Complete and detailed data are available in the <a href='${config.summary.grafana_url}'>Grafana dashboard</a> if you need more insight.</p>
               </div>`
         });
 

src/utils/Config.js

@@ -36,6 +36,7 @@ const defaultValidationSchema = joi
         ]
       }),
     SUMMARY_HOUR: joi.number().integer().required().min(0).max(23),
+    GRAFANA_URL: joi.string().trim().uri().optional(),
     IP_INFOS_TOKEN: joi.string().trim().required(),
     DB_USER: joi.string().trim().required(),
     DB_PASSWORD: joi.string().trim().required(),
@@ -69,12 +70,13 @@ export class Config {
     return {
       account: env.ACCOUNT,
       email: {
-        FROM: env.FROM,
-        TO: env.TO
+        from: env.FROM,
+        to: env.TO
       },
       summary: {
-        DAY: env.SUMMARY_DAY.toLowerCase(),
-        HOUR: env.SUMMARY_HOUR
+        day: env.SUMMARY_DAY.toLowerCase(),
+        hour: env.SUMMARY_HOUR,
+        grafana_url: env.GRAFANA_URL
       },
       ip_infos: {
         token: env.IP_INFOS_TOKEN