Start sketching out add-letter button.

undercover/routes.py

@@ -125,6 +125,16 @@ def logout() -> Response:
     return redirect('/')
 
 
+@writing_blueprint.route('/add_letter')
+def add_letter(user: db.User) -> Response:
+    # TODO: Add new letter to db
+    existing_letter_count = len(db.get_user_letters(user.id))
+    new_letter_name = f'Letter{existing_letter_count + 2}'
+    default_form_json = jsonify(CLForm().to_cl_data()).get_data(True)
+    db.add_letter(user.id, new_letter_name, default_form_json)
+    return redirect(f'/?letter_name={new_letter_name}')
+
+
 @writing_blueprint.route('/', methods=['GET'])
 def index_get() -> Response:
     email_address = session.get('username')

undercover/templates/writing.jinja2

@@ -63,6 +63,7 @@
     <dl>
       {% if username %}
         {{ render_field(form.letterName, onchange="window.location = '/?letter_name=' + this.options[this.value - 1].label") }}
+        <span style="background-color: green; color: white;">+</span>
       {% endif %}
       {{ render_field(form.username) }}
       {{ render_field(form.company) }}