#!/usr/bin/env bash
set -euo pipefail

ROOT="$(cd "$(dirname "$0")/.." && pwd)"
NODE_BIN="${NODE_BIN:-/opt/homebrew/opt/node@24/bin/node}"
SCRIPT="${MEMIND_AGENT_RUN_GUARD_SCRIPT:-$ROOT/scripts/agent-run-guard.mjs}"
LABEL="${MEMIND_AGENT_RUN_GUARD_LABEL:-cn.tkmind.memind-agent-run-guard}"
PLIST="$HOME/Library/LaunchAgents/${LABEL}.plist"
LOG="${MEMIND_AGENT_RUN_GUARD_LOG:-$HOME/Library/Logs/memind-agent-run-guard.log}"
GUI="gui/$(id -u)"
INTERVAL="${MEMIND_AGENT_RUN_GUARD_INTERVAL_SECONDS:-60}"
START="${MEMIND_AGENT_RUN_GUARD_START:-1}"

mkdir -p "$HOME/Library/LaunchAgents" "$(dirname "$LOG")"

if [[ ! -x "$NODE_BIN" ]]; then
  NODE_BIN="$(command -v node)"
fi
if [[ ! -f "$SCRIPT" ]]; then
  echo "agent run guard script not found: $SCRIPT" >&2
  exit 1
fi

cat > "$PLIST" <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>
  <string>$LABEL</string>
  <key>ProgramArguments</key>
  <array>
    <string>$NODE_BIN</string>
    <string>$SCRIPT</string>
    <string>--apply</string>
  </array>
  <key>WorkingDirectory</key>
  <string>$ROOT</string>
  <key>StartInterval</key>
  <integer>$INTERVAL</integer>
  <key>RunAtLoad</key>
  <true/>
  <key>StandardOutPath</key>
  <string>$LOG</string>
  <key>StandardErrorPath</key>
  <string>$LOG</string>
  <key>EnvironmentVariables</key>
  <dict>
    <key>PATH</key>
    <string>/opt/homebrew/bin:/opt/homebrew/opt/node@24/bin:/usr/local/bin:/usr/bin:/bin</string>
    <key>MEMIND_AGENT_RUN_GUARD_ENABLED</key>
    <string>${MEMIND_AGENT_RUN_GUARD_ENABLED:-1}</string>
    <key>MEMIND_AGENT_RUN_GUARD_FAILED_WINDOW_MS</key>
    <string>${MEMIND_AGENT_RUN_GUARD_FAILED_WINDOW_MS:-600000}</string>
    <key>MEMIND_AGENT_RUN_GUARD_MAX_RECENT_FAILURES</key>
    <string>${MEMIND_AGENT_RUN_GUARD_MAX_RECENT_FAILURES:-3}</string>
    <key>MEMIND_AGENT_RUN_GUARD_MAX_PENDING_AGE_MS</key>
    <string>${MEMIND_AGENT_RUN_GUARD_MAX_PENDING_AGE_MS:-300000}</string>
    <key>MEMIND_AGENT_RUN_GUARD_MAX_PENDING_COUNT</key>
    <string>${MEMIND_AGENT_RUN_GUARD_MAX_PENDING_COUNT:-10}</string>
    <key>MEMIND_AGENT_RUN_GUARD_MAX_RUNNING_AGE_MS</key>
    <string>${MEMIND_AGENT_RUN_GUARD_MAX_RUNNING_AGE_MS:-900000}</string>
  </dict>
</dict>
</plist>
EOF

plutil -lint "$PLIST"
launchctl bootout "$GUI/$LABEL" 2>/dev/null || true
launchctl bootstrap "$GUI" "$PLIST"

if [[ "$START" == "1" || "$START" == "true" || "$START" == "yes" ]]; then
  launchctl enable "$GUI/$LABEL"
  launchctl kickstart -k "$GUI/$LABEL"
  state="started"
else
  launchctl disable "$GUI/$LABEL" 2>/dev/null || true
  state="installed-disabled"
fi

echo "installed $PLIST"
echo "state: $state"
echo "script: $SCRIPT"
echo "interval_seconds: $INTERVAL"
echo "log: $LOG"
echo "manual stop: launchctl bootout $GUI/$LABEL"