from . import app
from .jwt import jwt_required
from .model import *
from flask import g, jsonify, request, abort
from sqlalchemy import func

@app.route('/')
def index():
    return 'Hello, world!'

@app.route('/login', methods=['POST'])
def login():
    username = request.form.get('username')
    password = request.form.get('password')
    if username is None or password is None: abort(400)
    user = User.query.filter_by(username=username).first()
    if user is None or not user.check_password(password): abort(400)
    return jsonify({ 'token': user.get_jwt().decode() })

@app.route('/me')
@jwt_required
def me():
    return jsonify({ 'username' : g.user.username })

@app.route('/collars')
@jwt_required
def collars():
    active_collars = Collar.query.\
            filter_by(active=True).\
            join(DataPoint, isouter=True).\
            order_by(DataPoint.datetime.desc()).\
            group_by(Collar.id).\
            with_entities(
                    Collar.id, Collar.name,
                    DataPoint.longitude, DataPoint.latitude).\
            all()
    active_collars = [
            {'id': id, 'name': name, 'pos': {'longitude': lo, 'latitude': la}}
            for (id, name, lo, la) in active_collars]
    return jsonify(active_collars)

@app.route('/collars/<int:id>/history')
@jwt_required
def collar_history(id):
    collar = Collar.query.filter_by(id=id).first()
    if collar is None: abort(404)

    data_points = DataPoint.query.\
            filter_by(collar_id=id).\
            order_by(DataPoint.datetime.desc()).\
            all()
    return jsonify([point.to_dict() for point in data_points])