import logging

from flask import (Flask, make_response, request, abort, render_template,
                   redirect, url_for)
from flask.ext.principal import Principal
from flask.ext.login import login_user, LoginManager

import model

app = Flask(__name__)
logger = logging.getLogger(__name__)

Principal(app, use_sessions=False)

app.secret_key = '1cb18882-6d12-440d-a4cc-b7430fb5f884'

login_manager = LoginManager()
login_manager.init_app(app)
login_manager.login_view = 'signin'


@login_manager.user_loader
def load_user(username):
  return model.get_user(username)


@app.route('/', methods=['GET'])
def index():
  return render_template('index.html')


@app.route('/signin', methods=['POST'])
def signin():
  username = request.form['username']
  password = request.form['password']

  #TODO Allow email login
  verified = model.verify_user(username, password)
  if verified:
    logger.debug('Successfully signed in as: %s' % username)

    login_user(verified)
    return redirect(request.args.get('next') or url_for('index'))

  abort(403)


@app.route('/signin', methods=['GET'])
def render_signin_page():
  return render_template('signin.html')


@app.route('/_ping')
@app.route('/v1/_ping')
def ping():
  response = make_response('true', 200)
  response.headers['X-Docker-Registry-Version'] = '0.6.0'
  return response