import logging

from odoo.http import request

_logger = logging.getLogger(__name__)


def _get_detected_language(self, request_obj=None, **post):
    req = request_obj or request
    url_lang = req.params.get("lang")
    post_lang = post.get("lang")
    cookie_lang = req.httprequest.cookies.get("lang")
    context_lang = req.env.context.get("lang")
    user_lang = req.env.user.lang or "es_ES"

    detected = None
    if url_lang:
        detected = url_lang
    elif post_lang:
        detected = post_lang
    elif cookie_lang:
        detected = cookie_lang
    elif context_lang:
        detected = context_lang
    else:
        detected = user_lang

    _logger.info(
        "🌐 Language detection: url=%s, post=%s, cookie=%s, context=%s, user=%s → DETECTED=%s",
        url_lang,
        post_lang,
        cookie_lang,
        context_lang,
        user_lang,
        detected,
    )
    return detected


def _get_translated_labels(self, lang=None, request_obj=None):
    req = request_obj or request
    if lang is None:
        lang = _get_detected_language(self, request_obj=req)

    env_lang = req.env(context=dict(req.env.context, lang=lang))
    lang_code = (lang or "").split("_")[0]

    fallbacks = {
        "es": {
            "Browse Product Categories": "Explorar categorías de productos",
            "Save Draft": "Grabar pedido",
            "Save order as draft": "Grabar pedido",
            "Order saved as draft": "Pedido grabado",
            "This order's cart is empty.": "El carrito de este pedido está vacío.",
            "This order's cart is empty": "El carrito de este pedido está vacío",
        },
        "eu": {
            "Browse Product Categories": "Produktu kategoriak arakatu",
            "Save Draft": "Eskaera gorde",
            "Save order as draft": "Eskaera gorde",
            "Order saved as draft": "Eskaera gordeta",
            "This order's cart is empty.": "Eskaera honen saskia hutsik dago.",
            "This order's cart is empty": "Eskaera honen saskia hutsik dago",
        },
    }

    def tr(source):
        translated = env_lang._(source)
        if translated == source:
            translated = fallbacks.get(lang_code, {}).get(source, translated)
        return translated

    labels = {
        "product": tr("Product"),
        "quantity": tr("Quantity"),
        "price": tr("Price"),
        "subtotal": tr("Subtotal"),
        "total": tr("Total"),
        "empty": tr("This order's cart is empty."),
        "empty_cart": tr("This order's cart is empty."),
        "browse_categories": tr("Browse Product Categories"),
        "all_categories": tr("Browse Product Categories"),
        "save_draft": tr("Save Draft"),
        "save_order_as_draft": tr("Save order as draft"),
        "order_saved_as_draft": tr("Order saved as draft"),
        "save_cart": tr("Save Cart"),
        "reload_cart": tr("Reload Cart"),
        "proceed_to_checkout": tr("Proceed to Checkout"),
        "confirm_order": tr("Confirm Order"),
        "back_to_cart": tr("Back to Cart"),
        "remove_item": tr("Remove Item"),
        "cancel": tr("Cancel"),
        "confirm": tr("Confirm"),
        "confirmation": tr("Confirmation"),
        "items": tr("items"),
        "items_placeholder": tr("items"),
        "added_to_cart": tr("added to cart"),
        "cart_restored": tr("Your cart has been restored"),
        "order_loaded": tr("Order loaded"),
        "invalid_quantity": tr("Please enter a valid quantity"),
        "connection_error": tr("Connection error"),
        "error_unknown": tr("Unknown error"),
        "error_saving_draft": tr("Error saving cart"),
        "error_loading_draft": tr("Error loading draft"),
        "error_processing_response": tr("Error processing response"),
        "draft_saved": tr("Order saved as draft"),
        "draft_saved_success": tr("Cart saved as draft successfully"),
        "draft_loaded_success": tr("Draft order loaded successfully"),
        "reload_draft_confirm": tr(
            "Are you sure you want to load your last saved draft?"
        ),
        "reload_draft_replace": tr("This will replace the current items in your cart"),
        "reload_draft_with": tr("with the saved draft."),
        "clear_cart_confirm": tr(
            "Are you sure you want to clear the cart? This will also cancel any saved draft order."
        ),
        "cart_cleared": tr("Cart cleared"),
        "draft_cancelled": tr("draft order cancelled"),
        "home_delivery": tr("Home Delivery"),
        "delivery_information": tr("Delivery Information"),
        "delivery_info_template": tr(
            "Delivery Information: Your order will be delivered at {pickup_day} {pickup_date}"
        ),
        "important": tr("Important"),
        "confirm_order_warning": tr(
            "Once you confirm this order, you will not be able to modify it. Please review carefully before confirming."
        ),
        "pickup_day_label": tr("Pickup Day"),
    }

    return labels


def _translate_labels(self, labels_dict, lang):
    # Minimal fallback translator kept here; prefers env translations
    translations = {
        "es_ES": {},
    }
    lang_translations = translations.get(lang, {})
    translated = {}
    for key, english_label in labels_dict.items():
        translated[key] = lang_translations.get(english_label, english_label)
    _logger.info(
        "[_translate_labels] Language: %s, Translated %d labels", lang, len(translated)
    )
    return translated