feat: Add a feature for sharing information with a WhatsApp account (#83)

* feat: Add a feature to share to a WhatsApp account

Author: nelliei

app/main.py

@@ -7,7 +7,9 @@
 from app.dependencies import (
     MEDIA_PATH, STATIC_PATH, templates)
 from app.routers import (
-    agenda, dayview, email, event, invitation, profile, search, telegram)
+    agenda, dayview, email, event, invitation, profile, search, telegram,
+    whatsapp
+    )
 from app.telegram.bot import telegram_bot
 
 
@@ -34,6 +36,7 @@ def create_tables(engine, psql_environment):
 app.include_router(dayview.router)
 app.include_router(email.router)
 app.include_router(invitation.router)
+app.include_router(whatsapp.router)
 app.include_router(search.router)
 
 telegram_bot.set_webhook()

app/routers/whatsapp.py

@@ -0,0 +1,25 @@
+from fastapi import APIRouter
+from typing import Optional
+from urllib.parse import urlencode
+
+
+router = APIRouter()
+
+
+@router.get("/whatsapp")
+def make_link(phone_number: Optional[str], message: Optional[str]) -> str:
+    """This function is being used to send whatsapp messages.
+    It takes a string message and a cell phone number and it returns a link so
+    we can add it to an html page and send the message to that phone number.
+    Args:
+        phone_number (str): Cell phone number to send the message to.
+        message (str): Message that is going to be sent.
+
+    Returns:
+        str: Returns a string which contains a link to whatsapp api so we can
+             send the message via whatsapp.
+    """
+    link = 'https://api.whatsapp.com/send?'
+    mydict = {'phone': phone_number, 'text': message}
+    msglink = link + urlencode(mydict)
+    return {"link": msglink}

tests/test_whatsapp.py

@@ -0,0 +1,43 @@
+from app.routers import whatsapp
+
+
+def test_whatsapp_send():
+    # Redirects you directly to the specified contact and the message will
+    #  already be there (or to whatsapp web if the call is from the web)
+    phone_number = "972536106106"
+    message = 'Event or a joke or the schedule of one day'
+    assert whatsapp.make_link(phone_number, message) == {
+        "link": "https://api.whatsapp.com/send?phone=972536106106&text=Event+"
+        "or+a+joke+or+the+schedule+of+one+day"}
+
+
+def test_wrong_phone_number():
+    # Redirects you to a popup: The phone number shared via a link is incorrect
+    phone_number = "999999"
+    message = 'Wrong phone number?'
+    assert whatsapp.make_link(phone_number, message) == {
+        "link": "https://api.whatsapp.com/send?phone=999999&text=Wrong+phone+"
+        "number%3F"}
+
+
+def test_no_message():
+    # Redirects to whatsapp of the specified number. Write your own message.
+    phone_number = "972536106106"
+    message = ''
+    assert whatsapp.make_link(phone_number, message) == {
+        "link": "https://api.whatsapp.com/send?phone=972536106106&text="}
+
+
+def test_no_number():
+    # Redirects to whatsapp window. Choose someone from your own contact list.
+    phone_number = ""
+    message = 'Which phone number?'
+    assert whatsapp.make_link(phone_number, message) == {
+        "link": "https://api.whatsapp.com/send?phone=&text=Which+phone+"
+        "number%3F"}
+
+
+def test_end_to_end_testing(client):
+    resp = client.get('/whatsapp?phone_number=972536106106&message=testing')
+    assert resp.ok
+    assert resp.json