feat(reports): implement report emailing

This commit implements the email dropdown on reports as a first step
towards automatic email reporting.  The automatic email reports will
depend on a scheduler proposed in #2308.

The email functionality depends on having a mailgun account. You should
put your mailgun API key and domain in the .env.development file.  Some
defaults for this project have been filled out.

Partially addresses #1688 and #1766.

.env.development

@@ -19,6 +19,11 @@ S3_BUCKET_NAME="bhima-backups-v1"
 
 UPLOAD_DIR='client/upload'
 
+# Mailgun Creds
+MAILGUN_API_KEY="key-xyz"
+MAILGUN_DOMAIN="bhi.ma"
+MAILGUN_SERVER_ADDRESS="notifications@bhi.ma"
+
 # control Redis Pub/Sub
 ENABLE_EVENTS=false
 ENABLE_EVENTS_LOG=false

client/src/i18n/en/form.json

@@ -121,6 +121,7 @@
             "DISABLED_CURRENCY": "This currency is unusable since there is no account set for it.  Use the Cashbox Management module to set an account for this currency and cashbox.",
             "EDITED" : "Edited",
             "ENTITY_NOT_FOUND": "Entity (Debtor/Creditor) Not Found",
+            "EMAIL_SUCCESS" : "Email successfully delivered.",
             "EXPORT_SUCCESS": "Successfully exported",
             "FINANCIAL_DETAIL": "Financial details",
             "FOUND": "Found",

client/src/i18n/en/report.json

@@ -128,7 +128,8 @@
       "BACK": "Back to the previous page",
       "OPTIONS": "Options",
       "PREVIEW": "Preview",
-      "VIEW_ARCHIVE": "Archives"
+      "VIEW_ARCHIVE": "Archives",
+      "EMAIL_HELP_TXT" : "The email above will receive the report as an attachment.  The server must have an internet connection for the email to be successfully delivered."
     }
   }
 }

client/src/i18n/fr/form.json

@@ -120,6 +120,7 @@
             "DELETE_SUCCESS": "Suppression avec succès",
             "DISABLED_CURRENCY": "Cette monnaie est inutilisable car il n'y a pas de compte fixée pour elle. Utilisez le module Box Cash Management pour définir un compte pour cette monnaie et caisse.",
             "ENTITY_NOT_FOUND": "Entité (Debiteur/Crediteur) Non Trouvé",
+            "EMAIL_SUCCESS" : "Email envoyé avec succès.",
             "EXPORT_SUCCESS": "Exportation avec succes",
             "EDITED" : "Édité",
             "FINANCIAL_DETAIL": "Détails financieres",

client/src/i18n/fr/report.json

@@ -131,7 +131,8 @@
       "BACK":"Revenir en arriere",
       "OPTIONS":"Options",
       "PREVIEW":"Aperçu",
-      "VIEW_ARCHIVE":"Archives"
+      "VIEW_ARCHIVE":"Archives",
+      "EMAIL_HELP_TXT" : "L'e-mail ci-dessus recevra le rapport en pièce jointe. Le serveur doit avoir une connexion Internet pour que l'e-mail soit livré avec succès."
     }
   }
 }

client/src/modules/reports/baseReports.service.js

@@ -13,6 +13,8 @@ function BaseReportService($http, Modal, util, Languages) {
   service.saveReport = saveReport;
   service.requestPreview = requestPreview;
   service.saveAsModal = saveAsModal;
+  service.emailReportModal = emailReportModal;
+  service.emailReport = emailReport;
 
   function requestKey(key) {
     var url = '/reports/keys/';
@@ -63,6 +65,25 @@ function BaseReportService($http, Modal, util, Languages) {
       .then(util.unwrapHttpResponse);
   }
 
+  function emailReport(uuid, email) {
+    var url = '/reports/archive/'.concat(uuid, '/email');
+    return $http.post(url, { address : email })
+      .then(util.unwrapHttpResponse);
+  }
+
+  function emailReportModal(options) {
+    var instance = Modal.open({
+      keyboard : true,
+      resolve : {
+        options : function resolveOptions() { return options; },
+      },
+      controller : 'EmailReportController as EmailCtrl',
+      templateUrl : '/modules/reports/modals/reports.email.html',
+    });
+
+    return instance.result;
+  }
+
   function saveAsModal(options) {
     var instance = Modal.open({
       animation : false,

client/src/modules/reports/modals/reports.email.html

@@ -0,0 +1,36 @@
+<form name="EmailForm" bh-submit="EmailCtrl.submit(EmailForm)" novalidate>
+<div class="modal-header">
+  <ol class="headercrumb">
+    <li class="static">
+      <span translate>TREE.REPORTS</span>
+    </li>
+    <li class="title">{{ EmailCtrl.reportName }}</li>
+  </ol>
+</div>
+
+<div class="modal-body" style="max-height:600px;">
+  <div class="form-group" ng-class="{ 'has-error' : EmailForm.$submitted && EmailForm.email.$invalid }">
+    <label class="control-label" translate>FORM.LABELS.EMAIL</label>
+    <input name="email" type="email" ng-model="EmailCtrl.params.email" class="form-control" required>
+
+    <div class="help-block" ng-messages="EmailForm.email.$error" ng-show="EmailForm.$submitted">
+      <div ng-messages-include="modules/templates/messages.tmpl.html"></div>
+    </div>
+  </div>
+
+  <p class="text-primary">
+    <i class="fa fa-info-circle"></i>
+    <span translate>REPORT.UTIL.EMAIL_HELP_TXT</span>
+  </p>
+</div>
+
+<div class="modal-footer">
+  <button type="button" data-method="cancel" class="btn btn-default" ng-click="EmailCtrl.dismiss()">
+    <span translate>FORM.BUTTONS.CANCEL</span>
+  </button>
+
+  <bh-loading-button loading-state="EmailForm.$loading">
+    <span translate>FORM.BUTTONS.SUBMIT</span>
+  </bh-loading-button>
+</div>
+</form>

client/src/modules/reports/modals/reports.email.js

@@ -0,0 +1,31 @@
+angular.module('bhima.controllers')
+  .controller('EmailReportController', EmailReportController);
+
+EmailReportController.$inject = [
+  '$uibModalInstance', 'NotifyService', 'BaseReportService', 'options',
+  'SessionService',
+];
+
+function EmailReportController(ModalInstance, Notify, SavedReports, options, Session) {
+  var vm = this;
+
+  vm.reportName = options.reportName;
+
+  vm.params = {
+    email : Session.user.email,
+  };
+
+  vm.submit = function submit(EmailForm) {
+    if (EmailForm.$invalid) { return 1; }
+
+    return SavedReports.emailReport(options.uuid, vm.params.email)
+      .then(function () {
+        ModalInstance.close({ sent : true });
+      })
+      .catch(Notify.handleError);
+  };
+
+  vm.dismiss = function dismiss() {
+    ModalInstance.close({ sent : false });
+  };
+}

client/src/modules/reports/reportsArchive.js

@@ -8,10 +8,18 @@ ReportsArchiveController.$inject = [
 function ReportsArchiveController($state, SavedReports, Notify, reportData) {
   var vm = this;
 
+  var typeTemplate =
+    '<div class="ui-grid-cell-contents"><i class="fa fa-file-pdf-o"></i></div>';
+  var dateTemplate =
+    '<div class="ui-grid-cell-contents">{{ row.entity.timestamp | date }} (<span am-time-ago="row.entity.timestamp"></span>)</div>';
+  var printTemplate =
+    '<div class="ui-grid-cell-contents"><bh-pdf-link pdf-url="/reports/archive/{{row.entity.uuid}}"></bh-pdf-link></div>';
+
   var reportId = reportData.id;
   vm.key = $state.params.key;
 
   vm.deleteReport = deleteReport;
+  vm.emailReport = emailReport;
 
   vm.gridOptions = {
     fastWatch : true,
@@ -21,10 +29,6 @@ function ReportsArchiveController($state, SavedReports, Notify, reportData) {
     appScopeProvider : vm,
   };
 
-  var typeTemplate = '<div class="ui-grid-cell-contents"><i class="fa fa-file-pdf-o"></i></div>';
-  var dateTemplate = '<div class="ui-grid-cell-contents">{{ row.entity.timestamp | date }} (<span am-time-ago="row.entity.timestamp"></span>)</div>';
-  var printTemplate = '<div class="ui-grid-cell-contents"><bh-pdf-link pdf-url="/reports/archive/{{row.entity.uuid}}"></bh-pdf-link></div>';
-
   vm.gridOptions.columnDefs = [
     { field : 'typeicon', displayName : '', cellTemplate : typeTemplate, width : 25 },
     { field : 'label', displayName : 'FORM.LABELS.LABEL', headerCellFilter : 'translate' },
@@ -46,6 +50,16 @@ function ReportsArchiveController($state, SavedReports, Notify, reportData) {
       .catch(Notify.handleError);
   }
 
+  function emailReport(uid, name) {
+    SavedReports.emailReportModal({ uuid : uid, reportName : name })
+      .then(function (result) {
+        if (result.sent) {
+          Notify.success('FORM.INFO.EMAIL_SUCCESS');
+        }
+      })
+      .catch(Notify.handleError);
+  }
+
   function loadSavedReports() {
     vm.loading = true;
 

client/src/modules/templates/actionsDropdown.html

@@ -11,8 +11,8 @@
         </a>
       </li>
       <li>
-        <a href>
-          <span class="text-muted"><i class="fa fa-envelope"></i> <span translate>TABLE.COLUMNS.EMAIL</span></span>
+        <a href data-action="email" ng-click="grid.appScope.emailReport(row.entity.uuid, row.entity.label)">
+          <i class="fa fa-envelope"></i> <span translate>TABLE.COLUMNS.EMAIL</span>
         </a>
       </li>
       <li>

package.json

@@ -67,11 +67,13 @@
     "json2xls": "^0.1.2",
     "lodash": "^4.16.2",
     "lzma-native": "^3.0.4",
+    "mailgun-js": "^0.13.1",
     "mkdirp": "^0.5.1",
     "moment": "^2.15.0",
     "morgan": "^1.6.1",
     "multer": "^1.1.0",
     "mysql": "^2.14.0",
+    "mz": "^2.7.0",
     "q": "~1.5.0",
     "s3-client": "^4.4.1",
     "snyk": "^1.41.1",

server/config/routes.js

@@ -361,6 +361,7 @@ exports.configure = function configure(app) {
 
   // lookup saved report document
   app.get('/reports/archive/:uuid', report.sendArchived);
+  app.post('/reports/archive/:uuid/email', report.emailArchived);
   app.delete('/reports/archive/:uuid', report.deleteArchived);
 
   app.get('/dashboard/debtors', dashboardDebtors.getReport);

server/controllers/report.js

@@ -9,18 +9,27 @@
  * @requires path
  * @requires fs
  * @requires db
+ * @requires debug
+ * @requires moment
+ * @requires lib/barcode
+ * @requires lib/errors/BadRequest
+ * @requires lib/mailer
  */
 
 // const path = require('path');
 const fs = require('fs');
 const db = require('../lib/db');
 const barcode = require('../lib/barcode');
 const BadRequest = require('../lib/errors/BadRequest');
+const moment = require('moment');
+const mailer = require('../lib/mailer');
+const debug = require('debug')('reports');
 
 exports.keys = keys;
 exports.list = list;
 exports.sendArchived = sendArchived;
 exports.deleteArchived = deleteArchived;
+exports.emailArchived = emailArchived;
 
 exports.barcodeLookup = barcodeLookup;
 exports.barcodeRedirect = barcodeRedirect;
@@ -39,7 +48,7 @@ exports.barcodeRedirect = barcodeRedirect;
  * GET /reports/keys/:key
  */
 function keys(req, res, next) {
-  const key = req.params.key;
+  const { key } = req.params;
   const sql = `SELECT * FROM report WHERE report_key = ?;`;
 
   db.exec(sql, [key])
@@ -72,14 +81,13 @@ function keys(req, res, next) {
  * GET /reports/saved/:reportId
  */
 function list(req, res, next) {
-  const reportId = req.params.reportId;
-  const sql =
-    `
-    SELECT 
-      BUID(saved_report.uuid) as uuid, label, report_id, 
-      parameters, link, timestamp, user_id, 
-      user.display_name 
-    FROM saved_report left join user on saved_report.user_id = user.id 
+  const { reportId } = req.params;
+  const sql = `
+    SELECT
+      BUID(saved_report.uuid) as uuid, label, report_id,
+      parameters, link, timestamp, user_id,
+      user.display_name
+    FROM saved_report left join user on saved_report.user_id = user.id
     WHERE report_id = ?`;
 
   db.exec(sql, [reportId])
@@ -158,10 +166,74 @@ function deleteArchived(req, res, next) {
     .done();
 }
 
+// TODO(@jniles) - translate these emails into multiple languages
+const REPORT_EMAIL =
+`Hello!
+
+Please find the attached report "%filename%" produced by %user% on %date%.
+
+This email was requested by %requestor%.
+
+Thanks,
+bhi.ma
+`;
+
+// this is a really quick and lazy templating scheme
+const template = (str, values) => {
+  return Object.keys(values).reduce((formatted, key) =>
+    formatted.replace(`%${key}%`, values[key]), str);
+};
+
+
+/**
+ * @function emailArchived
+ *
+ * @description
+ * Emails an archived report to an email address provided in the "to" field.
+ */
+function emailArchived(req, res, next) {
+  const { uuid } = req.params;
+  const { address } = req.body;
+
+  debug(`#emailArchived(): Received email request for ${address}.`);
+
+  lookupArchivedReport(uuid)
+    .then(report => {
+      debug(`#emailArchived(): sending ${report.label} to ${address}.`);
+
+      const date = moment(report.timestamp).format('YYYY-MM-DD');
+      const filename = `${report.label}.pdf`;
+
+      const attachments = [
+        { filename, path : report.link },
+      ];
+
+      // template parameters for the email
+      const parameters = {
+        filename,
+        date,
+        user : report.display_name,
+        requestor : req.session.user.display_name,
+      };
+
+      // template in the parameters into message body
+      const message = template(REPORT_EMAIL, parameters);
+      const subject = `${report.label} - ${date}`;
+
+      return mailer.email(address, subject, message, { attachments });
+    })
+    .then(() => {
+      debug(`#emailArchived(): email sent to ${address}.`);
+      res.sendStatus(200);
+    })
+    .catch(next)
+    .done();
+}
+
 // Method to return the object
 // Method to redirect
 function barcodeLookup(req, res, next) {
-  const key = req.params.key;
+  const { key } = req.params;
 
   barcode.reverseLookup(key)
     .then(result => res.send(result))
@@ -170,7 +242,7 @@ function barcodeLookup(req, res, next) {
 }
 
 function barcodeRedirect(req, res, next) {
-  const key = req.params.key;
+  const { key } = req.params;
 
   barcode.reverseLookup(key)
     // populated by barcode controller