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))

    labels = {
        "product": env_lang._("Product"),
        "quantity": env_lang._("Quantity"),
        "price": env_lang._("Price"),
        "subtotal": env_lang._("Subtotal"),
        "total": env_lang._("Total"),
        "empty": env_lang._("This order's cart is empty."),
        # ... keep minimal set here; website_sale.py will fall back if needed
    }

    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