ble version

winDeployScripts/software/collector/ui_io.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+"""UI bridge files: status JSON, log jsonl, command file."""
+from __future__ import annotations
+
+import json
+import logging
+import time
+from pathlib import Path
+from typing import Any, Dict, List, Optional
+
+from config import UI_LOG_LIMIT, cmd_path, status_path, ui_log_path
+
+log = logging.getLogger("collector.ui")
+
+
+def write_status(status: dict) -> None:
+    path = status_path()
+    tmp = Path(str(path) + ".tmp")
+    try:
+        tmp.write_text(json.dumps(status, ensure_ascii=False), encoding="utf-8")
+        tmp.replace(path)
+    except OSError as e:
+        log.error("status write failed: %s", e)
+
+
+def append_ui_log(level: str, message: str, **extra: Any) -> None:
+    path = ui_log_path()
+    entry = {
+        "ts": time.strftime("%Y-%m-%dT%H:%M:%SZ", time.gmtime()),
+        "level": level,
+        "msg": message,
+    }
+    entry.update(extra)
+    try:
+        with path.open("a", encoding="utf-8") as f:
+            f.write(json.dumps(entry, ensure_ascii=False) + "\n")
+        _truncate_log(path, UI_LOG_LIMIT)
+    except OSError as e:
+        log.error("ui log write failed: %s", e)
+
+
+def _truncate_log(path: Path, limit: int) -> None:
+    try:
+        lines = path.read_text(encoding="utf-8").splitlines()
+    except OSError:
+        return
+    if len(lines) <= limit:
+        return
+    try:
+        path.write_text("\n".join(lines[-limit:]) + "\n", encoding="utf-8")
+    except OSError:
+        pass
+
+
+def read_cmd() -> Optional[Dict[str, Any]]:
+    path = cmd_path()
+    if not path.exists():
+        return None
+    try:
+        raw = path.read_text(encoding="utf-8").strip()
+        path.unlink(missing_ok=True)
+    except OSError as e:
+        log.error("cmd read failed: %s", e)
+        return None
+    if not raw:
+        return {"op": "advertise"}
+    try:
+        return json.loads(raw)
+    except ValueError:
+        return {"op": "advertise"}
+
+
+def write_advertise_cmd() -> None:
+    """Helper for external callers (tests)."""
+    try:
+        cmd_path().write_text(json.dumps({"op": "advertise"}), encoding="utf-8")
+    except OSError as e:
+        log.error("cmd write failed: %s", e)