# coding=UTF-8
""" Price formulas """
from api.lib.utils import round_half_up
from api.models.external_print_product import get_external_print_product
from api.models.price_adjustments import get_price_adjustment


def wallpaper_m2_price(
    material,
    market,
    designer=None,
    reseller=None,
    inquiry=None,
    rounded=True,
    inc_vat=True,
):
    """ calculates price per square meter """
    price = material.price / 100.0

    if designer:
        price *= (float(designer.pricepremium_wallpaper) / 100) + 1

    if reseller:
        price *= (float(reseller.pricepremium) / 100) + 1

    if inquiry:
        price *= (float(inquiry.pricepremium) / 100) + 1

    price *= market.exchange_rate
    price *= market.price_adjustments

    inquiry_or_product_key = "product" if inquiry is None else "inquiry"
    price *= get_price_adjustment(market.name, material.name, inquiry_or_product_key)

    if inc_vat:
        price *= market.vat

    if rounded:
        price = round_half_up(price)

    return price


def wallpaper_price(
    width,
    height,
    material,
    market,
    designer=None,
    reseller=None,
    inquiry=None,
    rounded=True,
    inc_vat=True,
):
    price = wallpaper_m2_price(
        material, market, designer, reseller, inquiry, rounded=False, inc_vat=False
    )

    sqm = (width / 100) * (height / 100)

    min_sqm = 1

    sqm = max(sqm, min_sqm)

    price *= sqm

    if inc_vat:
        price *= market.vat

    if rounded:
        price = round(price)

    return price


def _designer_pricepremium(designer, group_id):
    if group_id in [1,3,6]:
        return designer.pricepremium_wallpaper
    if group_id == 2:
        return designer.pricepremium_canvas
    if group_id == 7:
        return designer.pricepremium_poster
    if group_id == 8:
        return designer.pricepremium_framed_print

    raise ValueError("Unexpected group id: {}".format(group_id))


def external_product_price(
    id, market, designer=None, inquiry=None, rounded=True, inc_vat=True
):
    external_product = get_external_print_product(id)
    price = external_product["price"]

    price *= market.price_adjustments

    if designer:
        designer_pricepremium = _designer_pricepremium(designer, external_product["group_id"])
        price *= (float(designer_pricepremium) / 100) + 1

    if inquiry:
        price *= (float(inquiry.pricepremium) / 100) + 1

    price *= market.exchange_rate

    if inc_vat:
        price *= market.vat

    if rounded:
        price = round_half_up(price)

    return price


def inquiry_price(
    inquiry, inc_price_retouch=True, rounded=True, inc_vat=True, **kwargs
):
    width = kwargs.get("width", inquiry.width)
    height = kwargs.get("height", inquiry.height)
    material = kwargs.get("material", inquiry.material)
    reseller = kwargs.get("reseller", inquiry.dealer_store)
    external_id = kwargs.get("external_id")

    if external_id:
        price = external_product_price(
            id=external_id,
            market=inquiry.market,
            designer=inquiry.designer,
            inquiry=inquiry,
            rounded=False,
            inc_vat=False,
        )
    elif inquiry.product_group == "photo-wallpaper":
        price = wallpaper_price(
            width,
            height,
            material,
            inquiry.market,
            designer=inquiry.designer,
            reseller=reseller,
            inquiry=inquiry,
            rounded=False,
            inc_vat=False,
        )
    else:
        raise ValueError("Invalid product group: {}".format(inquiry.product_group))

    effect_price = inquiry.price_effect
    if effect_price:
        price += float(effect_price)

    if inc_price_retouch:
        retouch_price = inquiry.local_price_retouch(rounded=False, inc_vat=False)
        if retouch_price:
            price += retouch_price

    if inc_vat:
        price *= inquiry.market.vat

    if rounded:
        price = round_half_up(price)

    return price

def wallpaper_kit_price(
    market, reseller=None, rounded=True, inc_vat=True
):
    # Prices in local currency
    prices = {
        'AT': 15.91,
        'AU': 23.64,
        'BE': 17.25,
        'CA': 24,
        'CH': 19.09,
        'DE': 16.36,
        'DK': 132.67,
        'EE': 16.96,
        'ES': 17.55,
        'FI': 17.34,
        'FR': 16.22,
        'GB': 13.31,
        'GLOBAL': 13.45,
        'IE': 15.52,
        'IT': 17.21,
        'LU': 15.88,
        'NL': 16.53,
        'NO': 154.26,
        'PL': 19.31,
        'SE': 159.2,
        'SG': 19.81,
        'US': 19.81,
    }
    local_price = prices.get(market.name)

    if (local_price):
        # Note that the local wallpaper kit prices do not follow usual behaviour of multiplying by market exchange rate
        price = local_price
    else:
        # Default/fallback price
        price = prices.get('SE')
        price *= market.exchange_rate

    price *= market.price_adjustments

    if reseller:
        price *= (float(reseller.pricepremium) / 100) + 1

    if inc_vat:
        price *= market.vat

    if rounded:
        price = round_half_up(price)

    return price