#!/bin/bash
# OpenClaw heartbeat — sends platform + model to heatmap server.
# Rate-limited: sends at most once per 180 seconds.
# Called by both SessionStart and PostToolUse hooks.
# No tool names, arguments, or results are read or sent.

CONFIG="$HOME/.openclaw/config.json"
[ -f "$CONFIG" ] || exit 0

# --- Rate limit check (fast path: exit in <1ms) ---
LAST_FILE="$HOME/.openclaw/.last_heartbeat"
NOW=$(date +%s)
if [ -f "$LAST_FILE" ]; then
  LAST=$(cat "$LAST_FILE" 2>/dev/null || echo 0)
  [ $((NOW - LAST)) -lt 180 ] && exit 0
fi

# --- Send heartbeat ---
KEY=$(python3 -c "import json; print(json.load(open('$CONFIG'))['apiKey'])" 2>/dev/null) || exit 0
[ -z "$KEY" ] && exit 0

curl -s -o /dev/null --max-time 5 -X POST 'https://kymr.top/api/v1/heartbeat' \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $KEY" \
  -d "{\"platform\":\"$(uname -s | tr '[:upper:]' '[:lower:]')\",\"model\":\"${CLAUDE_MODEL:-unknown}\"}" \
  2>/dev/null && echo "$NOW" > "$LAST_FILE" || true