from constance import config
from django.conf import settings


def org_schema():
    return {
        "@context": "https://schema.org",
        "@type": "Organization",
        "name": config.COMPANY_NAME,
        "url": f"https://{config.BASE_DOMAIN}/",
        "logo": f"https://{config.BASE_DOMAIN}/static/logo.png",
    }


def website_schema():
    return {
        "@context": "https://schema.org",
        "@type": "WebSite",
        "name": config.PROJECT_NAME,
        "url": f"https://{config.BASE_DOMAIN}/",
        "potentialAction": {
            "@type": "SearchAction",
            "target": f"https://{config.BASE_DOMAIN}/search?q={{query}}",
            "query-input": "required name=query",
        },
    }


def breadcrumb_schema(items):
    return {
        "@context": "https://schema.org",
        "@type": "BreadcrumbList",
        "itemListElement": [
            {"@type": "ListItem", "position": i + 1, "name": name, "item": url} for i, (name, url) in enumerate(items)
        ],
    }


def item_list_schema(urls):
    return {
        "@context": "https://schema.org",
        "@type": "ItemList",
        "itemListElement": [{"@type": "ListItem", "position": i + 1, "url": u} for i, u in enumerate(urls)],
    }


def product_schema(product, images, rating=None):
    offers = []
    for stock in product.stocks.all():
        offers.append(
            {
                "@type": "Offer",
                "price": round(stock.price, 2),
                "priceCurrency": settings.CURRENCY_CODE,
                "availability": "https://schema.org/InStock" if stock.quantity > 0 else "https://schema.org/OutOfStock",
                "sku": stock.sku,
                "url": f"https://{config.BASE_DOMAIN}/product/{product.slug}",
            }
        )
    data = {
        "@context": "https://schema.org",
        "@type": "Product",
        "name": product.name,
        "description": product.description or "",
        "sku": product.partnumber or "",
        "brand": {"@type": "Brand", "name": product.brand.name} if product.brand else None,
        "image": [img.image.url for img in images] or [],
        "offers": offers[:1] if offers else None,
    }
    if rating and rating["count"] > 0:
        data["aggregateRating"] = {
            "@type": "AggregateRating",
            "ratingValue": rating["value"],
            "reviewCount": rating["count"],
        }
    return {k: v for k, v in data.items() if v not in (None, [], {})}


def category_schema(category, url):
    return {
        "@context": "https://schema.org",
        "@type": "CollectionPage",
        "name": category.name,
        "description": category.description or "",
        "url": url,
    }


def brand_schema(brand, url, logo_url=None):
    data = {
        "@context": "https://schema.org",
        "@type": "Brand",
        "name": brand.name,
        "url": url,
    }
    if logo_url:
        data["logo"] = logo_url
    return data