# coding=UTF-8

""" Price formulas """


def wallpaper_price(width, height, material_price, market, designer=None, reseller=None, inc_vat=True):
    m2_price = material_price

    # add designer price premium
    if designer:
        m2_price *= (float(designer.pricepremium) / 100) + 1

    # add reseller price premium
    if reseller:
        m2_price *= (float(reseller.pricepremium) / 100) + 1

    # exchange to local currency
    m2_price *= market.exchange_rate

    # multiply m2_price with market price adjustments
    m2_price *= market.price_adjustments

    # calculate price per square meter
    sqm = (width / 100) * (height / 100)

    if market.territory == "US":
        min_sqm = 2
    else:
        min_sqm = 1

    sqm = max(sqm, min_sqm)

    price = sqm * m2_price

    # add vat
    if inc_vat:
        price *= market.vat

    return round(price)


def canvas_cm2_price(cm2):
    price_cm2_at_1cm2 = 0.224
    price_cm2_at_5000cm2 = 0.144
    price_cm2_at_10000cm2 = 0.096
    price_cm2_at_22500cm2 = 0.064

    if cm2 <= 5000:
        diff = price_cm2_at_1cm2 - price_cm2_at_5000cm2
        discount = (diff / 5000) * cm2
        cm2_price = price_cm2_at_1cm2 - discount

    elif cm2 > 5000 and cm2 <= 10000:
        diff = price_cm2_at_5000cm2 - price_cm2_at_10000cm2
        discount = (diff / 5000) * (cm2 - 5000)
        cm2_price = price_cm2_at_5000cm2 - discount

    elif cm2 > 10000:
        diff = price_cm2_at_10000cm2 - price_cm2_at_22500cm2
        discount = (diff / 12500) * (cm2 - 10000)
        cm2_price = price_cm2_at_10000cm2 - discount

    cm2_price = max(cm2_price, 0.064)
    return cm2_price


def canvas_price(width, height, market, framed=True, designer=None, reseller=None, inc_vat=True):
    cm2 = width * height

    # get the price per cm2
    cm2_price = canvas_cm2_price(cm2)

    # calculate price for canvas with frame
    price = (cm2 * cm2_price)
    price = max(price, 396.8)  # the price can never go below 396.8 SEK

    if not framed:
        price *= 0.7

    # add designer price premium
    if designer:
        price *= (float(designer.pricepremium) / 100) + 1

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

    # exchange to local currency
    price *= market.exchange_rate

    # multiply price with market price adjustments
    price *= market.price_adjustments

    # add vat
    if inc_vat:
        price *= market.vat

    return round(price)