from flask_login import current_user
from flask import request, redirect, url_for, flash, abort

from app.utils.render import render
from app.forms.forum import CommentForm
from app.models.forum import Forum
from app.models.topic import Topic
from app.models.thread import Thread
from app.models.comment import Comment
from app import app, db


@app.route('/forum/<forum:f>/<topicslug:t>', methods=['GET', 'POST'])
def forum_topic(f, t):
    # Quick n' dirty workaround to converters
    if f != t.forum:
        abort(404)

    form = CommentForm()

    if form.validate_on_submit():
        c = Comment(current_user, form.message.data, t.thread)
        db.session.add(c)
        db.session.commit()
        flash('Message envoyé', 'ok')
        # Redirect to empty the form
        return redirect(url_for('forum_topic', f=f, t=t))

    # Update views
    t.views += 1
    db.session.merge(t)
    db.session.commit()

    return render('/forum/topic.html', t=t, form=form)