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

ROOT="$(cd "$(dirname "$0")/.." && pwd)"
NODE_BIN="${NODE_BIN:-/opt/homebrew/opt/node@24/bin/node}"
SCRIPT="${MEMIND_RUNTIME_SLO_SCRIPT:-$ROOT/scripts/runtime-slo-report.mjs}"
LABEL="${MEMIND_RUNTIME_SLO_LABEL:-cn.tkmind.memind-runtime-slo-report}"
PLIST="$HOME/Library/LaunchAgents/${LABEL}.plist"
LOG="$HOME/Library/Logs/memind-runtime-slo-report.log"
GUI="gui/$(id -u)"
HOUR="${MEMIND_RUNTIME_SLO_HOUR:-23}"
MINUTE="${MEMIND_RUNTIME_SLO_MINUTE:-55}"
REPORT_DIR="${MEMIND_RUNTIME_REPORT_DIR:-$ROOT/reports/runtime-slo}"
RETENTION_DAYS="${MEMIND_RUNTIME_SLO_RETENTION_DAYS:-30}"

mkdir -p "$HOME/Library/LaunchAgents" "$HOME/Library/Logs" "$REPORT_DIR"

if [[ ! -x "$NODE_BIN" ]]; then
  NODE_BIN="$(command -v node)"
fi
if [[ ! -f "$SCRIPT" ]]; then
  echo "runtime SLO 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>--write-report</string>
    <string>--prune</string>
    <string>--retention-days</string>
    <string>$RETENTION_DAYS</string>
    <string>--report-dir</string>
    <string>$REPORT_DIR</string>
  </array>
  <key>WorkingDirectory</key>
  <string>$ROOT</string>
  <key>StartCalendarInterval</key>
  <dict>
    <key>Hour</key>
    <integer>$HOUR</integer>
    <key>Minute</key>
    <integer>$MINUTE</integer>
  </dict>
  <key>StandardOutPath</key>
  <string>$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>
  </dict>
</dict>
</plist>
EOF

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

echo "installed $PLIST"
echo "script: $SCRIPT"
echo "schedule: daily ${HOUR}:${MINUTE}"
echo "report_dir: $REPORT_DIR"
echo "retention_days: $RETENTION_DAYS"
echo "log: $LOG"