feat (ui): timezone

app/services/session_service.py

@@ -11,6 +11,7 @@ from app.config import APP_DATA_DIR
 
 class SessionService:
     FILE_DATE_SETTING_KEY = "set_file_date_to_first_aired_date"
+    MAX_FILENAME_LEN = 220
 
     def __init__(self) -> None:
         self._db_path = Path(APP_DATA_DIR) / "session_state.sqlite3"
@@ -461,7 +462,9 @@ class SessionService:
             )
             year = episode.get("year") or "0000"
             series = self._normalize_series_name(series, year)
+            series = self.sanitize_filename_component(series)
             title = episode.get("title") or "Untitled"
+            title = self.sanitize_filename_component(title)
 
             season_raw = episode.get("season_number") or episode.get("season") or 0
             episode_raw = episode.get("episode_number") or episode.get("number") or 0
@@ -481,6 +484,7 @@ class SessionService:
             proposed_filename = (
                 f"{series} ({year}) - S{season_number:02}E{episode_number:02} - {title}{ext}"
             )
+            proposed_filename = self._finalize_filename(proposed_filename, ext)
 
             previews.append(
                 {
@@ -510,6 +514,29 @@ class SessionService:
         pattern = re.compile(rf"\s*\({re.escape(year_str)}\)\s*$")
         return pattern.sub("", text).strip()
 
+    def sanitize_filename_component(self, value: str) -> str:
+        text = str(value or "")
+        # Replace Windows/SMB disallowed characters with spaces.
+        text = re.sub(r'[\\/:*?"<>|]', " ", text)
+        # Normalize any repeated whitespace and trim trailing/leading dot/space.
+        text = re.sub(r"\s+", " ", text).strip(" .")
+        return text or "Untitled"
+
+    def _finalize_filename(self, filename: str, ext: str) -> str:
+        extension = str(ext or "")
+        stem = filename[: -len(extension)] if extension and filename.endswith(extension) else filename
+        stem = re.sub(r"\s+", " ", stem).strip(" .")
+        if not stem:
+            stem = "Untitled"
+
+        max_stem_len = max(1, self.MAX_FILENAME_LEN - len(extension))
+        if len(stem) > max_stem_len:
+            stem = stem[:max_stem_len].rstrip(" .")
+            if not stem:
+                stem = "Untitled"
+
+        return f"{stem}{extension}"
+
     def execute_rename(self, session_id: str, confirm: bool) -> dict:
         if not confirm:
             raise ValueError("confirm=true is required to execute rename")
@@ -644,15 +671,20 @@ class SessionService:
         except ValueError:
             return None
 
-        local_noon = datetime(
+        # Convert with local-time semantics (host/container local timezone),
+        # avoiding implicit UTC conversion paths.
+        local_struct = (
             date_part.year,
             date_part.month,
             date_part.day,
             12,
             0,
             0,
+            -1,
+            -1,
+            -1,
         )
-        return local_noon.timestamp()
+        return time.mktime(local_struct)
 
     def _log_rename_run(self, session_id: str, result: dict, duration_ms: int) -> None:
         created_at = datetime.now(timezone.utc).isoformat()