Refactor: file api in to seperate api app & use drf api views

backend/apps/files/views.py

@@ -1,69 +0,0 @@
-import os
-
-from django.conf import settings
-from django.shortcuts import get_object_or_404
-from django.http import HttpResponse, FileResponse
-
-from sorl.thumbnail import get_thumbnail
-
-from .models import PostFileModel
-
-
-THUMBNAIL_SIZES = {
-    "sx": (64, ".thumb_64.jpg"),
-    "sm": (256, ".thumb_256.jpg"),
-    "md": (748, ".thumb_748.jpg"),
-    "lg": (1024, ".thumb_1024.jpg"),
-    "xl": (2048, ".thumb_2048.jpg"),
-}
-
-
-def get_thumbnail_file(source_path, size_key):
-    """Generates and retrieves the thumbnail file."""
-    size, suffix = THUMBNAIL_SIZES.get(size_key, (None, ""))
-    if size:
-        thumbnail_file = get_thumbnail(source_path, str(size), upscale=False)
-        return os.path.abspath(
-            os.path.join(settings.MEDIA_ROOT, thumbnail_file.name)
-        ), suffix
-    return None, ""
-
-
-def serve_content_file(request, file_hash):
-    """
-    View function to serve content files for download or inline viewing.
-    """
-
-    download = request.GET.get("d") == "0"
-    thumbnail_key = request.GET.get("t")
-
-    try:
-        obj_file = get_object_or_404(PostFileModel, hash_blake3=file_hash)
-        file_name = obj_file.name.first().filename
-        file_type = obj_file.file_type
-        source_file = obj_file.file
-
-        # Use thumbnail if requested and file type is image
-        if thumbnail_key and file_type != "image":
-            source_file = obj_file.thumbnail
-
-        # Retrieve the requested thumbnail file if applicable
-        if thumbnail_key in THUMBNAIL_SIZES:
-            thumbnail_path, suffix = get_thumbnail_file(source_file.path, thumbnail_key)
-            if thumbnail_path:
-                file_name += suffix
-                file = open(thumbnail_path, "rb")
-            else:
-                file = source_file.file
-        else:
-            file = source_file.file
-
-        response = FileResponse(file)
-        disposition_type = "attachment" if download else "inline"
-        response["Content-Disposition"] = f'{disposition_type}; filename="{file_name}"'
-
-        return response
-
-    except Exception as e:
-        print(f"Error serving file: {e}")
-        return HttpResponse("File not found", status=404)