Интегрирован wesp в сайт

WESP_REL/app/services/sync_content_hash.py

@@ -0,0 +1,71 @@
+"""Детерминированный content_hash для сущностей с полем content_hash (sync pull/push)."""
+
+from __future__ import annotations
+
+import hashlib
+import json
+from typing import Any
+
+# Не входят в хеш: версия/метаданные синка и аудит (иначе хеш «прыгает» без смены данных).
+_EXCLUDED_FROM_HASH = frozenset(
+    {
+        "version",
+        "content_hash",
+        "sync_timestamp",
+        "sync_status",
+        "created_at",
+        "updated_at",
+        "created_by",
+        "updated_by",
+        "client_id",
+        "server_synced",
+        "is_deleted",
+        "deleted_at",
+        "deleted_by",
+        "deleted_reason",
+        "restored_at",
+        "restored_by",
+        "restored_reason",
+        "delete_restore_count",
+    }
+)
+
+
+def stable_payload_for_hash(data: dict[str, Any]) -> dict[str, Any]:
+    return {k: v for k, v in data.items() if k not in _EXCLUDED_FROM_HASH}
+
+
+def compute_content_hash_hex(payload: dict[str, Any]) -> str:
+    raw = json.dumps(payload, sort_keys=True, ensure_ascii=False, default=str).encode("utf-8")
+    return hashlib.sha256(raw).hexdigest()
+
+
+def compute_content_hash_for_object(obj: Any) -> str:
+    from app.services.sync_record_data import get_object_data
+
+    data = get_object_data(obj)
+    if not isinstance(data, dict):
+        return ""
+    stable = stable_payload_for_hash(data)
+    return compute_content_hash_hex(stable)
+
+
+def refresh_content_hash_if_applicable(obj: Any) -> None:
+    if not hasattr(obj, "content_hash"):
+        return
+    new_hash = compute_content_hash_for_object(obj)
+    if new_hash and getattr(obj, "content_hash", None) != new_hash:
+        obj.content_hash = new_hash
+
+
+def refresh_content_hashes_for_session(session) -> None:
+    """Вызывать из before_flush: новые и изменённые строки с content_hash."""
+    seen: set[int] = set()
+    for obj in list(session.new) + list(session.dirty):
+        oid = id(obj)
+        if oid in seen:
+            continue
+        seen.add(oid)
+        if not hasattr(obj, "content_hash"):
+            continue
+        refresh_content_hash_if_applicable(obj)