infra: reorganized repo

alfred/domain/subtitles/services.py

@@ -0,0 +1,149 @@
+"""Subtitle domain services - Business logic."""
+
+import logging
+
+from ..shared.value_objects import FilePath, ImdbId
+from .entities import Subtitle
+from .exceptions import SubtitleNotFound
+from .repositories import SubtitleRepository
+from .value_objects import Language, SubtitleFormat
+
+logger = logging.getLogger(__name__)
+
+
+class SubtitleService:
+    """
+    Domain service for subtitle-related business logic.
+
+    This service is SHARED between movies and TV shows domains.
+    Both can use this service to manage subtitles.
+    """
+
+    def __init__(self, repository: SubtitleRepository):
+        """
+        Initialize subtitle service.
+
+        Args:
+            repository: Subtitle repository for persistence
+        """
+        self.repository = repository
+
+    def add_subtitle(self, subtitle: Subtitle) -> None:
+        """
+        Add a subtitle to the library.
+
+        Args:
+            subtitle: Subtitle entity to add
+        """
+        self.repository.save(subtitle)
+        logger.info(
+            f"Added subtitle: {subtitle.language.value} for {subtitle.media_imdb_id}"
+        )
+
+    def find_subtitles_for_movie(
+        self, imdb_id: ImdbId, languages: list[Language] | None = None
+    ) -> list[Subtitle]:
+        """
+        Find subtitles for a movie.
+
+        Args:
+            imdb_id: IMDb ID of the movie
+            languages: Optional list of languages to filter by
+
+        Returns:
+            List of matching subtitles
+        """
+        if languages:
+            all_subtitles = []
+            for lang in languages:
+                subs = self.repository.find_by_media(imdb_id, language=lang)
+                all_subtitles.extend(subs)
+            return all_subtitles
+        else:
+            return self.repository.find_by_media(imdb_id)
+
+    def find_subtitles_for_episode(
+        self,
+        imdb_id: ImdbId,
+        season: int,
+        episode: int,
+        languages: list[Language] | None = None,
+    ) -> list[Subtitle]:
+        """
+        Find subtitles for a TV show episode.
+
+        Args:
+            imdb_id: IMDb ID of the TV show
+            season: Season number
+            episode: Episode number
+            languages: Optional list of languages to filter by
+
+        Returns:
+            List of matching subtitles
+        """
+        if languages:
+            all_subtitles = []
+            for lang in languages:
+                subs = self.repository.find_by_media(
+                    imdb_id, language=lang, season=season, episode=episode
+                )
+                all_subtitles.extend(subs)
+            return all_subtitles
+        else:
+            return self.repository.find_by_media(
+                imdb_id, season=season, episode=episode
+            )
+
+    def remove_subtitle(self, subtitle: Subtitle) -> None:
+        """
+        Remove a subtitle from the library.
+
+        Args:
+            subtitle: Subtitle to remove
+
+        Raises:
+            SubtitleNotFound: If subtitle not found
+        """
+        if not self.repository.delete(subtitle):
+            raise SubtitleNotFound(f"Subtitle not found: {subtitle}")
+
+        logger.info(f"Removed subtitle: {subtitle}")
+
+    def detect_format_from_file(self, file_path: FilePath) -> SubtitleFormat:
+        """
+        Detect subtitle format from file extension.
+
+        Args:
+            file_path: Path to subtitle file
+
+        Returns:
+            Detected subtitle format
+        """
+        extension = file_path.value.suffix
+        return SubtitleFormat.from_extension(extension)
+
+    def validate_subtitle_file(self, file_path: FilePath) -> bool:
+        """
+        Validate that a file is a valid subtitle file.
+
+        Args:
+            file_path: Path to the file
+
+        Returns:
+            True if valid subtitle file, False otherwise
+        """
+        if not file_path.exists():
+            logger.warning(f"File does not exist: {file_path}")
+            return False
+
+        if not file_path.is_file():
+            logger.warning(f"Path is not a file: {file_path}")
+            return False
+
+        # Check file extension
+        try:
+            self.detect_format_from_file(file_path)
+            return True
+        except Exception as e:
+            logger.warning(f"Invalid subtitle format: {e}")
+            return False