Support original-language movie requests and fix repair dialog layout

backend/app/services/request_language.py

@@ -0,0 +1,60 @@
+"""Explicit original-language requests without changing shared quality defaults."""
+import asyncio
+import copy
+import hashlib
+import json
+import re
+
+import httpx
+
+from fastapi import HTTPException
+
+_profile_lock = asyncio.Lock()
+_prefix = "Magent Original "
+
+
+def language_info(details):
+    code = str(details.get("originalLanguage") or details.get("original_language") or "").lower()
+    if not re.fullmatch(r"[a-z]{2}", code) or code in {"en", "xx", "zz"}:
+        return None
+    return {"code": code}
+
+
+def profile_body(profile):
+    return {key: copy.deepcopy(value) for key, value in profile.items() if key not in {"id", "name"}}
+
+
+def profile_name(body):
+    return _prefix + hashlib.sha256(json.dumps(body, sort_keys=True).encode()).hexdigest()[:16]
+
+
+def is_original_profile(profile):
+    return ((profile.get("language") or {}).get("id") == -2
+            and profile.get("name") == profile_name(profile_body(profile)))
+
+
+async def original_profile(client, default_id):
+    # Reuse immutable copies; never edit a profile already used by other titles.
+    async with _profile_lock:
+        try:
+            profiles = await client.get_quality_profiles()
+        except httpx.HTTPError as exc:
+            raise HTTPException(502, "Radarr could not load the language profile. Try again.") from exc
+        if not isinstance(profiles, list):
+            raise HTTPException(502, "Radarr returned invalid quality profiles.")
+        default = next((p for p in profiles if p.get("id") == default_id), None)
+        if not default:
+            raise HTTPException(409, "The default quality profile changed. Reload the request.")
+        body = profile_body(default)
+        body["language"] = {"id": -2, "name": "Original"}
+        name = profile_name(body)
+        match = next((p for p in profiles if p.get("name") == name and profile_body(p) == body), None)
+        if match:
+            return match["id"]
+        try:
+            result = await client.post("/api/v3/qualityprofile", payload={**body, "name": name})
+        except httpx.HTTPError as exc:
+            raise HTTPException(502, "Radarr could not prepare the original-language profile. Try again.") from exc
+        if not isinstance(result, dict) or not isinstance(result.get("id"), int):
+            raise HTTPException(502, "Radarr could not prepare the original-language profile. Try again.")
+        return result["id"]