# coding=UTF-8

from api.extensions import db
from flask_sqlalchemy import BaseQuery


class Product(db.Model):

    __tablename__ = 'product-products'

    id = db.Column('productid', db.Integer, primary_key=True)
    designerid = db.Column(db.Integer, db.ForeignKey('designers.designerid'))
    designer = db.relationship('Designer', backref='products')


class Currencies(db.Model):

    __tablename__ = 'product-currencies'

    iso3char = db.Column(db.String(3), primary_key=True)
    exchange_rate = db.Column(db.Numeric, default=1)


class MaterialQuery(BaseQuery):

    def wallpapers(self):
        return self.filter(Material.name.in_(Material.WALLPAPER_MATERIALS))

    def canvas(self):
        return self.filter(Material.name.in_(Material.CANVAS_MATERIALS))


class Material(db.Model):

    __tablename__ = 'product-materials'

    query_class = MaterialQuery

    WALLPAPER_MATERIALS = ['standard-wallpaper',
                           # 'self-adhesive-wallpaper', // isn't sold now
                           'premium-wallpaper']
    CANVAS_MATERIALS = ['standard-canvas']

    id = db.Column('materialid', db.Integer, primary_key=True)
    name = db.Column('material', db.String(255), nullable=False)
    price = db.Column('price', db.Integer)

    def to_json(self):
        return {
            'id': self.id,
            'name': self.name,
            'price': float(self.price)
        }

    def __repr__(self):
        return self.name