thread page mostly finished

app/routes/threads.py

@@ -1,9 +1,45 @@
-from flask import Blueprint
+from flask import Blueprint, redirect, url_for, render_template, request, abort
+
+from ..models import Threads, Posts, Topics, Users, Reactions
+import math
 
 bp = Blueprint('threads', __name__, url_prefix='/threads/')
 
 @bp.get('/<slug>')
 def thread(slug):
+    thread = Threads.find({'slug': slug})
+    if not thread:
+        abort(404)
+    topic = Topics.find({'id': thread.topic_id})
+    started_by = Users.find({'id': thread.user_id})
+    PER_PAGE = 10
+    posts_count = Posts.count({'thread_id': thread.id})
+    page_count = max(1, math.ceil(posts_count / PER_PAGE))
+    page = 1
+    after = request.args.get('after', default=None)
+    if after is not None:
+        try:
+            after_id = int(after)
+            post_position = Posts.count([
+                ('thread_id', '=', thread.id),
+                ('id', '<=', after_id),
+            ])
+            page = math.ceil((post_position) / PER_PAGE)
+        except ValueError:
+            abort(404)
+    else:
+        try:
+            page = max(1, min(int(request.args.get('page', default=1)), page_count))
+        except ValueError:
+            abort(404)
+    return render_template('threads/thread.html', thread=thread, posts=thread.get_posts(PER_PAGE, page), page=page, page_count=page_count, topic=topic, started_by=started_by, topics=Topics.get_list(), Reactions=Reactions)
+
+@bp.post('/<slug>/reply')
+def reply(slug):
+    return 'stub'
+
+@bp.get('/<slug>/feed.atom')
+def feed(slug):
     return 'stub'
 
 @bp.get('/new')