add motd schema and motd editor

app/routes/mod.py

@@ -1,8 +1,11 @@
 from flask import (
-    Blueprint, render_template, request, redirect, url_for
+    Blueprint, render_template, request, redirect, url_for,
+    flash
     )
 from .users import get_active_user, is_logged_in
-from ..models import Users, PasswordResetLinks
+from ..models import Users, PasswordResetLinks, MOTD
+from ..constants import InfoboxKind
+from ..lib.babycode import babycode_to_html, BABYCODE_VERSION
 from ..db import db
 import secrets
 import time
@@ -55,3 +58,47 @@ def create_reset_pass(user_id):
 @bp.get('/panel')
 def panel():
     return render_template('mod/panel.html')
+
+
+@bp.get('/motd')
+def motd_editor():
+    current = MOTD.get_all()[0] if MOTD.has_motd() else None
+    return render_template('mod/motd.html', current=current)
+
+
+@bp.post('/motd')
+def motd_editor_form():
+    orig_body = request.form.get('body', default='')
+    title = request.form.get('title', default='')
+    data = {
+            'title': title,
+            'body_original_markup': orig_body,
+            'body_rendered': babycode_to_html(orig_body, banned_tags=['img', 'spoiler']),
+            'format_version': BABYCODE_VERSION,
+            'edited_at': int(time.time()),
+    }
+
+    if MOTD.has_motd():
+        motd = MOTD.get_all()[0]
+        motd.update(data)
+        message = 'MOTD updated.'
+    else:
+        data['created_at'] = int(time.time())
+        data['user_id'] = get_active_user().id
+        motd = MOTD.create(data)
+        message = 'MOTD created.'
+
+    flash(message, InfoboxKind.INFO)
+    return redirect(url_for('.motd_editor'))
+
+
+@bp.post('/motd/delete')
+def motd_delete():
+    if not MOTD.has_motd():
+        flash('No MOTD to delete.', InfoboxKind.WARN)
+        return redirect(url_for('.motd_editor'))
+
+    current = MOTD.get_all()[0]
+    current.delete()
+    flash('MOTD deleted.', InfoboxKind.INFO)
+    return redirect(url_for('.motd_editor'))