refactor: Employee birthday reminder

erpnext/hr/doctype/employee/employee.py

@@ -278,63 +278,71 @@ def send_birthday_reminders():
 	if int(frappe.db.get_single_value("HR Settings", "stop_birthday_reminders") or 0):
 		return
 
-	birthdays = get_employees_who_are_born_today()
+	employees_born_today = get_employees_who_are_born_today()
 
-	if birthdays:
-		employee_list = frappe.get_all('Employee',
-			fields=['name','employee_name'],
-			filters={'status': 'Active',
-				'company': birthdays[0]['company']
-		 	}
-		)
-		employee_emails = get_employee_emails(employee_list)
-		birthday_names = [name["employee_name"] for name in birthdays]
-		birthday_emails = [email["user_id"] or email["personal_email"] or email["company_email"] for email in birthdays]
+	for company, birthday_persons in employees_born_today.items():
+		employee_emails = get_all_employee_emails(company)
+		birthday_person_emails = [get_employee_email(doc) for doc in birthday_persons]
+		recipients = list(set(employee_emails) - set(birthday_person_emails))
 
-		birthdays.append({'company_email': '','employee_name': '','personal_email': '','user_id': ''})
+		reminder_text, message = get_birthday_reminder_text_and_message(birthday_persons)
+		send_birthday_reminder(recipients, reminder_text, birthday_persons, message)
 
-		for e in birthdays:
-			if e['company_email'] or e['personal_email'] or e['user_id']:
-				if len(birthday_names) == 1:
-					continue
-				recipients = e['company_email'] or e['personal_email'] or e['user_id']
+		if len(birthday_persons) > 1:
+			# special email for people sharing birthdays
+			for person in birthday_persons:
+				person_email = person["user_id"] or person["personal_email"] or person["company_email"]
+				others = [d for d in birthday_persons if d != person]
+				reminder_text, message = get_birthday_reminder_text_and_message(others)
+				send_birthday_reminder(person_email, reminder_text, others, message)
 
+def get_employee_email(employee_doc):
+	return employee_doc["user_id"] or employee_doc["personal_email"] or employee_doc["company_email"]
 
-			else:
-				recipients = list(set(employee_emails) - set(birthday_emails))
-
-			frappe.sendmail(recipients=recipients,
-				subject=_("Birthday Reminder"),
-				message=get_birthday_reminder_message(e, birthday_names),
-				header=['Birthday Reminder', 'green'],
-			)
-
-def get_birthday_reminder_message(employee, employee_names):
-	"""Get employee birthday reminder message"""
-	pattern = "</Li><Br><Li>"
-	message = pattern.join(filter(lambda u: u not in (employee['employee_name']), employee_names))
-	message = message.title()
-
-	if pattern not in message:
-		message = "Today is {0}'s birthday \U0001F603".format(message)
-
+def get_birthday_reminder_text_and_message(birthday_persons):
+	if len(birthday_persons) == 1:
+		birthday_person_text = birthday_persons[0]['name']
 	else:
-		message = "Today your colleagues are celebrating their birthdays \U0001F382<br><ul><strong><li> " + message +"</li></strong></ul>"
+		# converts ["Jim", "Rim", "Dim"] to Jim, Rim & Dim
+		person_names = [d['name'] for d in birthday_persons]
+		last_person = person_names[-1]
+		birthday_person_text = ", ".join(person_names[:-1])
+		birthday_person_text += " & {}".format(last_person)
 
-	return message
+	reminder_text = "Today is {0}'s birthday 🎉".format(birthday_person_text)
+	message = "A friendly reminder of an important date for our team. Everyone, let’s congratulate {0} their birthday".format(birthday_person_text)
 
+	return reminder_text, message
 
-def get_employees_who_are_born_today():
-	"""Get Employee properties whose birthday is today."""
-	return frappe.db.get_values("Employee",
-		fieldname=["name", "personal_email", "company", "company_email", "user_id", "employee_name"],
-		filters={
-			"date_of_birth": ("like", "%{}".format(format_datetime(getdate(), "-MM-dd"))),
-			"status": "Active",
-		},
-		as_dict=True
+def send_birthday_reminder(recipients, reminder_text, birthday_persons, message):
+	frappe.sendmail(
+		recipients=recipients,
+		subject=_("Birthday Reminder"),
+		template="birthday_reminder",
+		args=dict(
+			reminder_text=reminder,
+			birthday_persons=birthday_persons,
+			message=message,
+		),
+		header=_("Birthday Reminder 🎂")
 	)
 
+def get_employees_who_are_born_today():
+	"""Get all employee born today & group them based on their company"""
+	from collections import defaultdict
+	employees_born_today = frappe.db.get_all("Employee",
+		fields=["personal_email", "company", "company_email", "user_id", "employee_name as name", "image"],
+		filters={
+			"date_of_birth": ("like", "{}".format(format_datetime(getdate(), "-MM-dd"))),
+			"status": "Active",
+		})
+
+	grouped_employees = defaultdict(lambda: [])
+
+	for employee_doc in employees_born_today:
+		grouped_employees[employee_doc.get('company')].append(employee_doc)
+
+	return grouped_employees
 
 def get_holiday_list_for_employee(employee, raise_exception=True):
 	if employee:
@@ -404,14 +412,21 @@ def create_user(employee, user = None, email=None):
 	user.insert()
 	return user.name
 
-def get_employee_emails(employee_list):
+def get_all_employee_emails(company):
 	'''Returns list of employee emails either based on user_id or company_email'''
+	employee_list = frappe.get_all('Employee',
+		fields=['name','employee_name'],
+		filters={
+			'status': 'Active',
+			'company': company
+		}
+	)
 	employee_emails = []
 	for employee in employee_list:
 		if not employee:
 			continue
-		user, company_email, personal_email = frappe.db.get_value('Employee', employee,
-											['user_id', 'company_email', 'personal_email'])
+		user, company_email, personal_email = frappe.db.get_value('Employee',
+			employee, ['user_id', 'company_email', 'personal_email'])
 		email = user or company_email or personal_email
 		if email:
 			employee_emails.append(email)

erpnext/templates/emails/birthday_reminder.html

@@ -0,0 +1,16 @@
+<div class="gray-container text-center">
+	<div>
+		{% for person in birthday_persons %}
+		<span class="avatar avatar-small " title="Mitali">
+			<span class="avatar-frame standard-image" style="{% if person.image %}background-image: url({{person.image}}); {% endif %}  margin-right: 5px;"
+				title={{person.name}}>
+				{% if not person.image %} {{ person.name[:1] }} {% endif %}
+			</span>
+		</span>
+		{% endfor %}
+	</div>
+	<div style="margin-top: 15px">
+		<span>{{ reminder_text }}</span>
+		<p class="text-muted">{{ message }}</p>
+	</div>
+</div>