  # #region mapping_service [C:5] [TYPE Module] [SEMANTICS mapping, database, superset, fuzzy, suggestion]
  # @defgroup Services Module group.
  #
  # @BRIEF Orchestrates database fetching and fuzzy matching suggestions.
  # @LAYER Service
  # @PRE  source/target environment identifiers are provided by caller.
  # @POST  Exposes stateless mapping suggestion orchestration over configured environments.
  # @SIDE_EFFECT  Performs remote metadata reads through Superset API clients.
  # @DATA_CONTRACT  Input[source_env_id: str, target_env_id: str] -> Output[List[Dict]]
  # @RELATION DEPENDS_ON -> SupersetClient
  # @RELATION DEPENDS_ON -> suggest_mappings
  #
  # @INVARIANT  Suggestions are based on database names.
  
  
> from ..core.logger import belief_scope
> from ..core.superset_client import SupersetClient
> from ..core.utils.matching import suggest_mappings
  
  
  # #region MappingService [C:3] [TYPE Class]
  # @defgroup Services Module group.
  # @BRIEF Service for handling database mapping logic.
  # @PRE  config_manager exposes get_environments() with environment objects containing id.
  # @POST  Provides client resolution and mapping suggestion methods.
  # @SIDE_EFFECT  Instantiates Superset clients and performs upstream metadata reads.
  # @DATA_CONTRACT  Input[config_manager] -> Output[List[Dict]]
  # @RELATION DEPENDS_ON -> SupersetClient
  # @RELATION DEPENDS_ON -> suggest_mappings
> class MappingService:
      # region init [TYPE Function]
      # @PURPOSE: Initializes the mapping service with a config manager.
      # @PRE  config_manager is provided.
      # @PARAM  config_manager (ConfigManager) - The configuration manager.
      # @POST  Service is initialized.
      # @RELATION DEPENDS_ON -> MappingService
>     def __init__(self, config_manager):
>         with belief_scope("MappingService.__init__"):
>             self.config_manager = config_manager
  
      # endregion init
  
      # region _get_client [TYPE Function]
      # @PURPOSE: Helper to get an initialized SupersetClient for an environment.
      # @PARAM  env_id (str) - The ID of the environment.
      # @PRE  environment must exist in config.
      # @POST  Returns an initialized SupersetClient.
      # @RETURN  SupersetClient - Initialized client.
      # @RELATION CALLS -> SupersetClient
>     def _get_client(self, env_id: str) -> SupersetClient:
>         with belief_scope("MappingService._get_client", f"env_id={env_id}"):
>             envs = self.config_manager.get_environments()
>             env = next((e for e in envs if e.id == env_id), None)
>             if not env:
>                 raise ValueError(f"Environment {env_id} not found")
  
>             return SupersetClient(env)
  
      # endregion _get_client
  
      # region get_suggestions [TYPE Function]
      # @PURPOSE: Fetches databases from both environments and returns fuzzy matching suggestions.
      # @PARAM    source_env_id (str) - Source environment ID.
      # @PARAM    target_env_id (str) - Target environment ID.
      # @PRE  Both environments must be accessible.
      # @POST  Returns fuzzy-matched database suggestions.
      # @RETURN   List[Dict] - Suggested mappings.
      # @RELATION CALLS -> _get_client
      # @RELATION CALLS -> suggest_mappings
>     async def get_suggestions(
>         self, source_env_id: str, target_env_id: str
>     ) -> list[dict]:
>         with belief_scope(
>             "MappingService.get_suggestions",
>             f"source={source_env_id}, target={target_env_id}",
>         ):
>             """
>             Get suggested mappings between two environments.
>             """
>             source_client = self._get_client(source_env_id)
>             target_client = self._get_client(target_env_id)
  
>             source_dbs = source_client.get_databases_summary()
>             target_dbs = target_client.get_databases_summary()
  
>             return suggest_mappings(source_dbs, target_dbs)
  
      # endregion get_suggestions
  
  
  # #endregion MappingService
  
  # #endregion mapping_service
