Add Delete Account in setting

app/dashboard/templates/dashboard/setting.html

@@ -57,7 +57,35 @@
       <button class="btn btn-outline-primary">Change password</button>
     </form>
 
+    <hr>
+    <h3 class="mb-0">Delete Account</h3>
+    <div class="small-text mb-3">Please note that this operation is irreversible.
+
+    </div>
+    <form method="post">
+      <input type="hidden" name="form-name" value="delete-account">
+      <span class="delete-account btn btn-outline-danger">Delete account</span>
+    </form>
+
   </div>
 
 {% endblock %}
 
+{% block script %}
+  <script>
+    $(".delete-account").on("click", function (e) {
+      notie.confirm({
+        text: "All your data including your aliases will be deleted, " +
+          "other people might not be able to reach you after, " +
+          " please confirm.",
+        cancelCallback: () => {
+          // nothing to do
+        },
+        submitCallback: () => {
+          $(this).closest("form").submit();
+        }
+      });
+    });
+  </script>
+{% endblock %}
+

app/dashboard/views/setting.py

@@ -2,7 +2,7 @@ from io import BytesIO
 
 import arrow
 from flask import render_template, request, redirect, url_for, flash
-from flask_login import login_required, current_user
+from flask_login import login_required, current_user, logout_user
 from flask_wtf import FlaskForm
 from flask_wtf.file import FileField
 from wtforms import StringField, validators
@@ -111,6 +111,13 @@ def setting():
         elif request.form.get("form-name") == "change-password":
             send_reset_password_email(current_user)
 
+        elif request.form.get("form-name") == "delete-account":
+            User.delete(current_user.id)
+            db.session.commit()
+            flash("Your account has been deleted", "success")
+            logout_user()
+            return redirect(url_for("auth.register"))
+
         return redirect(url_for("dashboard.setting"))
 
     return render_template(