#!/bin/sh
# Oikos API health watchdog — if the oikos API restarts while dsh web holds a
# stale MCP session, every tool call fails with "session not found" until dsh
# web itself restarts. This monitor detects the transition and triggers a
# launchd kickstart so the connection recovers automatically.
#
# Runs every 30s via LaunchAgent network.hubris.oikos-api-watchdog.

set -e

API_URL="${API_URL:-http://localhost:8090/healthz}"
MARKER="${MARKER:-/tmp/.oikos-api-down}"

if curl -sf -o /dev/null --max-time 3 "$API_URL"; then
  if [ -f "$MARKER" ]; then
    rm -f "$MARKER"
    echo "oikos API recovered — restarting dsh web"
    launchctl kickstart -k "gui/$(id -u)/network.hubris.dsh-web" 2>/dev/null || true
  fi
else
  touch "$MARKER"
fi