add ccreate_collection endpoint into editor

backstage/editor/routes.py

@@ -1,5 +1,9 @@
-from flask import render_template, Blueprint, request, redirect, url_for
+from flask import render_template, Blueprint, request, redirect, url_for, flash
 import requests
+from backstage.collections.forms import CollectionCreateForm
+from datetime import datetime, timezone, timedelta
+from backstage.utils import translate
+from time import sleep
 
 editor_app = Blueprint('editor', __name__)
 
@@ -15,3 +19,37 @@ def remove():
     url = request.args.get('url', type=str)
     response = requests.delete('http://127.0.0.1:5000/api/contents?url={}'.format(url))
     return redirect(url_for('collections.collection_list'))
+
+
+@editor_app.route('/backstage/create/collection', methods=['POST'])
+def create_collection():
+    form = CollectionCreateForm()
+    url_name = translate(form.title.data).replace(' ', '_')
+    front_matter = '''---
+title: "{}"\n\
+date: {}\n\
+draft: {}\n\
+type: "{}"\n\
+url: "{}"\n\
+image: "/img/collection/{}"\n\
+description: "{}"\n\
+---'''.format(form.title.data,
+              datetime.now(timezone(timedelta(hours=+8))).isoformat(timespec="seconds"),
+              'false',
+              'collection',
+              '/collection/{}'.format(url_name),
+              form.image.data.filename,
+              form.description.data)
+    data = {'frontMatter': front_matter,
+            'name': request.form['title'],
+            'type': 'collection'}
+    new_response = requests.post('http://127.0.0.1:5000/api/new_content', json=data)
+    if new_response.status_code == 200:
+        requests.post(
+            'http://127.0.0.1:5000/api/upload/static/img?type=collection&filename={}'.format(
+                form.image.data.filename), files={'image': form.image.data})
+        sleep(0.5)
+        return redirect(url_for('editor.editor', url='/collection/{}'.format(url_name)))
+    else:
+        flash('新增文章失敗', 'danger')
+        return redirect(url_for('collections.collection_list'))