Cria novos components

video_render/media.py

@@ -0,0 +1,64 @@
+from __future__ import annotations
+
+import logging
+import shutil
+from dataclasses import dataclass
+from pathlib import Path
+
+from .config import Settings
+from .ffmpeg import extract_audio_to_wav
+from .utils import ensure_workspace, remove_paths, sanitize_filename
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass
+class VideoWorkspace:
+    original_filename: str
+    sanitized_name: str
+    workspace_dir: Path
+    output_dir: Path
+    source_path: Path
+    working_video_path: Path
+    audio_path: Path
+
+
+class MediaPreparer:
+    def __init__(self, settings: Settings) -> None:
+        self.settings = settings
+
+    def prepare(self, filename: str) -> VideoWorkspace:
+        source_path = self.settings.videos_dir / filename
+        if not source_path.exists():
+            raise FileNotFoundError(f"Arquivo de vídeo não encontrado: {source_path}")
+
+        sanitized_name = sanitize_filename(Path(filename).stem)
+        workspace_dir = ensure_workspace(self.settings.videos_dir, sanitized_name)
+
+        existing_children = list(workspace_dir.iterdir())
+        if existing_children:
+            logger.info("Limpando workspace existente para %s", sanitized_name)
+            remove_paths(existing_children)
+
+        destination_name = f"{sanitized_name}{source_path.suffix.lower()}"
+        working_video_path = workspace_dir / destination_name
+        shutil.copy2(source_path, working_video_path)
+        logger.info("Cópia do vídeo criada em %s", working_video_path)
+
+        output_dir = ensure_workspace(self.settings.outputs_dir, sanitized_name)
+        existing_outputs = list(output_dir.iterdir())
+        if existing_outputs:
+            remove_paths(existing_outputs)
+
+        audio_path = workspace_dir / "audio.wav"
+        extract_audio_to_wav(working_video_path, audio_path)
+
+        return VideoWorkspace(
+            original_filename=filename,
+            sanitized_name=sanitized_name,
+            workspace_dir=workspace_dir,
+            output_dir=output_dir,
+            source_path=source_path,
+            working_video_path=working_video_path,
+            audio_path=audio_path,
+        )