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

ROOT="${GROUPHOME_ROOT:-/mnt/DATA/git/comiaunicaty}"
PYTHON_PROBE="${PYTHON_PROBE:-python3}"
BACKEND_URL="${GROUPHOME_BACKEND_URL:-http://127.0.0.1:8000}"
FRONTEND_URL="${GROUPHOME_FRONTEND_URL:-http://127.0.0.1:5173}"
OPEN_BROWSER="${OPEN_BROWSER:-1}"
KEEP_RUNNING="${GROUPHOME_KEEP_RUNNING:-0}"

fail() {
  printf 'launch-dev: %s\n' "$*" >&2
  exit 1
}

wait_for_url() {
  "$PYTHON_PROBE" - "$1" <<'PY'
import sys
import time
import urllib.request

url = sys.argv[1]
deadline = time.monotonic() + 180
last_error = None
while time.monotonic() < deadline:
    try:
        with urllib.request.urlopen(url, timeout=3) as response:
            if 200 <= response.status < 500:
                raise SystemExit(0)
    except Exception as exc:  # noqa: BLE001 - printed only on timeout.
        last_error = exc
    time.sleep(2)
print(f"Timed out waiting for {url}: {last_error}", file=sys.stderr)
raise SystemExit(1)
PY
}

cleanup() {
  if [ "$KEEP_RUNNING" != "1" ]; then
    (cd "$ROOT" && docker compose down) >/dev/null 2>&1 || true
  fi
}
trap cleanup EXIT INT TERM

command -v docker >/dev/null 2>&1 || fail "docker not found. Install Docker with Compose support, then rerun this launcher."
command -v "$PYTHON_PROBE" >/dev/null 2>&1 || fail "$PYTHON_PROBE not found. Set PYTHON_PROBE to a Python executable."
[ -f "$ROOT/docker-compose.yml" ] || fail "docker-compose.yml not found at $ROOT"

printf 'Starting GroupHome with Docker Compose\n'
(
  cd "$ROOT"
  docker compose up --build -d
)

printf 'Waiting for %s/api/health\n' "$BACKEND_URL"
wait_for_url "$BACKEND_URL/api/health" || {
  (cd "$ROOT" && docker compose logs --tail=120) >&2 || true
  fail "backend did not become healthy"
}

printf 'Waiting for %s\n' "$FRONTEND_URL"
wait_for_url "$FRONTEND_URL" || {
  (cd "$ROOT" && docker compose logs --tail=120) >&2 || true
  fail "frontend did not become reachable"
}

if [ "$OPEN_BROWSER" = "1" ] && command -v xdg-open >/dev/null 2>&1; then
  xdg-open "$FRONTEND_URL" >/dev/null 2>&1 || true
fi

cat <<EOF

GroupHome is running through Docker Compose.
Web UI:      $FRONTEND_URL
API:         $BACKEND_URL/api
Health:      $BACKEND_URL/api/health
Demo invite: $FRONTEND_URL/join/demo-fc-invite

Compose logs are attached below.
Press Ctrl+C to stop services. Set GROUPHOME_KEEP_RUNNING=1 to leave them running after this launcher exits.
EOF

cd "$ROOT"
docker compose logs -f