from datetime import datetime

from .database import db
from .user import User


class Order(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    courrier_id = db.Column(db.Integer, nullable=True)
    location_id = db.Column(db.Integer, db.ForeignKey('location.id'))
    starttime = db.Column(db.DateTime)
    stoptime = db.Column(db.DateTime)
    public = db.Column(db.Boolean, default=True)
    items = db.relationship('OrderItem', backref='order', lazy='dynamic')

    def configure(self, courrier, location, starttime, stoptime):
        self.courrier = courrier
        self.location = location
        self.starttime = starttime
        self.stoptime = stoptime

    def __repr__(self):
        if self.location:
            return 'Order %d @ %s' % (self.id, self.location.name or 'None')
        else:
            return 'Order %d' % (self.id)

    def group_by_user(self):
        group = dict()
        for item in self.items:
            user = group.get(item.get_name(), dict())
            user["total"] = user.get("total", 0) + item.product.price
            user["to_pay"] = user.get(
                "to_pay", 0) + item.product.price if not item.paid else 0
            user["paid"] = user.get("paid", True) and item.paid
            user["products"] = user.get("products", []) + [item.product]
            group[item.get_name()] = user

        return group

    def group_by_product(self):
        group = dict()
        for item in self.items:
            product = group.get(item.product.name, dict())
            product['count'] = product.get("count", 0) + 1
            if item.extra:
                product["extras"] = product.get("extras", []) + [item.extra]
            group[item.product.name] = product

        return group

    def can_close(self, user_id):
        if self.stoptime and self.stoptime < datetime.now():
            return False
        user = None
        if user_id:
            user = User.query.filter_by(id=user_id).first()
            print(user)
        if self.courrier_id == user_id or (user and user.is_admin()):
            return True
        return False