changement vers google drive storage pour les contrats.

Tentative d'obtenir un token de connection échoue

app/google_drive.py

@@ -22,7 +22,9 @@ class GoogleDriveStorageError(RuntimeError):
 def _setting(name):
     value = os.getenv(name)
     if not value:
-        raise GoogleDriveStorageError(f'{name} must be configured for Google Drive document storage.')
+        raise GoogleDriveStorageError(
+            f'{name} must be configured for Google Drive document storage.'
+        )
     return value
 
 
@@ -47,6 +49,43 @@ def _drive_service():
     return build('drive', 'v3', credentials=credentials, cache_discovery=False)
 
 
+def list_folder_files():
+    """Return (file_id, name) tuples for every file in the configured folder.
+
+    Used by the backup script to enumerate Drive-stored contracts. Returns
+    only files directly in the folder (not nested inside sub-folders).
+
+    Returns:
+        list[tuple[str, str]]: (file_id, name) for each file found.
+    """
+    try:
+        folder_id = _setting(GOOGLE_DRIVE_FOLDER_ID_ENV)
+        page_token = None
+        results = []
+        while True:
+            response = (
+                _drive_service()
+                .files()
+                .list(
+                    q=f"'{folder_id}' in parents and trashed=false",
+                    fields='nextPageToken, files(id, name)',
+                    pageToken=page_token,
+                    pageSize=1000,
+                )
+                .execute()
+            )
+            for f in response.get('files', []):
+                results.append((f['id'], f['name']))
+            page_token = response.get('nextPageToken')
+            if not page_token:
+                break
+        return results
+    except GoogleDriveStorageError:
+        raise
+    except Exception as exc:
+        raise GoogleDriveStorageError('Google Drive could not list folder contents.') from exc
+
+
 def upload_file(*, stream, filename, mimetype):
     """Upload a PDF to the configured owner folder and return its Drive ID."""
     try: