'''
AJAX hooks for the website.

Warning: this is not the public API.
'''

from flask import Blueprint, jsonify
from .models import User
from .utils import locations, get_current_user, is_username

bp = Blueprint('ajax', __name__, url_prefix='/ajax')

@bp.route('/username_availability/<username>')
def username_availability(username):
    current = get_current_user()
    if current:
        current = current.username
    else:
        current = None
    is_valid = is_username(username)
    if is_valid:
        try:
            user = User.get(User.username == username)
            is_available = current == user.username
        except User.DoesNotExist:
            is_available = True
    else:
        is_available = False
    return jsonify({'is_valid':is_valid, 'is_available':is_available, 'status':'ok'})

@bp.route('/location_search/<name>')
def location_search(name):
    results = []
    for key, value in locations.items():
        if value.lower().startswith(name.lower()):
            results.append({'value': key, 'display': value})
    return jsonify({'results': results})