Initial commit

2026-05-12 17:51:53 +08:00
commit b564ca4797
55 changed files with 6407 additions and 0 deletions
@@ -0,0 +1,39 @@
+"""Snapshot diff logic."""
+from typing import Any, Optional
+
+
+def diff_snapshots(
+    previous: Optional[dict[str, Any]],
+    current: dict[str, Any],
+) -> list[dict[str, Any]]:
+    """Return list of rate changes between previous and current snapshots.
+    Returns empty list if previous is None (first check)."""
+    if not previous:
+        return []
+    old_groups: dict[str, Any] = previous.get("groups") or {}
+    new_groups: dict[str, Any] = current.get("groups") or {}
+    changes: list[dict[str, Any]] = []
+    for gid, new_g in sorted(new_groups.items()):
+        if not isinstance(new_g, dict):
+            continue
+        old_g = old_groups.get(gid)
+        old_rate = old_g.get("rate") if isinstance(old_g, dict) else None
+        new_rate = new_g.get("rate")
+        if old_rate != new_rate:
+            changes.append({
+                "group_id": gid,
+                "group_name": new_g.get("group_name", ""),
+                "platform": new_g.get("platform", ""),
+                "old_rate": old_rate,
+                "new_rate": new_rate,
+            })
+    for gid, old_g in sorted(old_groups.items()):
+        if gid not in new_groups and isinstance(old_g, dict):
+            changes.append({
+                "group_id": gid,
+                "group_name": old_g.get("group_name", ""),
+                "platform": old_g.get("platform", ""),
+                "old_rate": old_g.get("rate"),
+                "new_rate": None,
+            })
+    return changes