"""

  Unified service configuration accessors.

  This module is now a thin adapter over ``config.loader.get_app_config`` and
  contains no independent parsing or precedence logic.

  """
  
  from __future__ import annotations
  

  import os

  from typing import Any, Dict, Tuple
  
  from config.loader import get_app_config
  from config.schema import EmbeddingServiceConfig, RerankServiceConfig, TranslationServiceConfig
  
  
  def get_translation_config() -> Dict[str, Any]:
      return get_app_config().services.translation.as_dict()
  
  
  def get_embedding_config() -> EmbeddingServiceConfig:
      return get_app_config().services.embedding
  
  
  def get_rerank_config() -> RerankServiceConfig:
      return get_app_config().services.rerank

  
  
  def get_translation_base_url() -> str:

      return get_app_config().services.translation.endpoint

  def get_translation_cache_config() -> Dict[str, Any]:

      return dict(get_app_config().services.translation.cache)

  def get_embedding_text_base_url() -> str:

      provider_cfg = get_app_config().services.embedding.get_provider_config()
      base = provider_cfg.get("text_base_url")

      if not base:

          raise ValueError("Embedding text base_url is not configured")

      return str(base).rstrip("/")
  
  
  def get_embedding_image_base_url() -> str:

      provider_cfg = get_app_config().services.embedding.get_provider_config()
      base = provider_cfg.get("image_base_url")

      if not base:

          raise ValueError("Embedding image base_url is not configured")

      return str(base).rstrip("/")
  
  

  def get_embedding_backend_config() -> Tuple[str, Dict[str, Any]]:
      cfg = get_app_config().services.embedding
      return cfg.backend, cfg.get_backend_config()
  
  
  def get_embedding_image_backend_config() -> Tuple[str, Dict[str, Any]]:
      cfg = get_app_config().services.embedding
      return cfg.image_backend, cfg.get_image_backend_config()
  
  
  def get_rerank_backend_config() -> Tuple[str, Dict[str, Any]]:
      cfg = get_app_config().services.rerank

      backend = str(os.getenv("RERANK_BACKEND") or cfg.backend).strip()
      if backend != cfg.backend:
          backend_cfg = cfg.backends.get(backend)
          if backend_cfg is None:
              raise ValueError(f"Unknown rerank backend override from RERANK_BACKEND: {backend!r}")
          return backend, dict(backend_cfg)

      return cfg.backend, cfg.get_backend_config()
  
  

  def get_rerank_base_url() -> str:

      provider_cfg = get_app_config().services.rerank.get_provider_config()
      base = provider_cfg.get("service_url") or provider_cfg.get("base_url")

      if not base:

          raise ValueError("Rerank service URL is not configured")

      return str(base).rstrip("/")

  def get_rerank_service_url() -> str:

      return get_rerank_base_url()