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

if [[ -f ".env_dev" ]]; then
  set -a
  source .env_dev
  set +a
fi

APP_PORT="${APP_PORT:-3911}"
BACKEND_PORT="${BACKEND_PORT:-3002}"
API_PROXY_TARGET="${API_PROXY_TARGET:-http://127.0.0.1:${BACKEND_PORT}}"
export APP_PORT BACKEND_PORT API_PROXY_TARGET
export NEXT_TELEMETRY_DISABLED=1

if [[ -z "${DATABASE_URL:-}" ]]; then
  echo "DATABASE_URL fehlt. Beispiel:"
  echo "  export DATABASE_URL='postgresql://user:pass@localhost:5432/tickettracker'"
  exit 1
fi

DATABASE_HOST="$(node -e 'const url = new URL(process.env.DATABASE_URL); process.stdout.write(url.hostname)' 2>/dev/null || true)"
POSTGRES_CONTAINER="${POSTGRES_CONTAINER:-tickettracker-postgres}"

if [[ "${DATABASE_HOST}" == "postgres" || "${DATABASE_HOST}" == "postgres-tickettracker" ]]; then
  if ! getent hosts "${DATABASE_HOST}" >/dev/null 2>&1 && command -v docker >/dev/null 2>&1 && docker inspect "${POSTGRES_CONTAINER}" >/dev/null 2>&1; then
    POSTGRES_CONTAINER_IP="$(docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "${POSTGRES_CONTAINER}")"

    if [[ -n "${POSTGRES_CONTAINER_IP}" ]]; then
      export DATABASE_URL="$(
        DATABASE_HOST="${POSTGRES_CONTAINER_IP}" node -e 'const url = new URL(process.env.DATABASE_URL); url.hostname = process.env.DATABASE_HOST; process.stdout.write(url.toString())'
      )"
      echo "Nutze Docker-Postgres ${POSTGRES_CONTAINER} unter ${POSTGRES_CONTAINER_IP}:5432 für den lokalen Start."
    fi
  fi
fi

NODE_MAJOR="$(node -p 'Number(process.versions.node.split(".")[0])' 2>/dev/null || echo 0)"

if [[ "${NODE_MAJOR}" -lt 20 ]]; then
  echo "Das Next/shadcn-Framework braucht lokal Node >= 20.9, empfohlen Node 22."
  echo "Aktuell ist Node ${NODE_MAJOR:-unbekannt} aktiv."
  echo "Es wird kein Docker-Container gebaut oder gestartet."
  exit 1
fi

npm run build

cleanup() {
  if [[ -n "${BACKEND_PID:-}" ]]; then
    kill "${BACKEND_PID}" 2>/dev/null || true
  fi
}
trap cleanup EXIT INT TERM

echo "Starte Backend auf Port ${BACKEND_PORT}"
BACKEND_LOG="${TMPDIR:-/tmp}/tickettracker-backend-local.log"
rm -f "${BACKEND_LOG}"
SERVE_FRONTEND=false PORT="${BACKEND_PORT}" npm run start --workspace backend >"${BACKEND_LOG}" 2>&1 &
BACKEND_PID=$!

echo "Warte auf Backend ${API_PROXY_TARGET}"
for _ in $(seq 1 50); do
  if ! kill -0 "${BACKEND_PID}" 2>/dev/null; then
    echo "Backend konnte nicht gestartet werden:"
    cat "${BACKEND_LOG}"
    exit 1
  fi

  if curl -fsS "${API_PROXY_TARGET}/api/debug/status" >/dev/null 2>&1; then
    break
  fi

  sleep 0.2
done

if ! curl -fsS "${API_PROXY_TARGET}/api/debug/status" >/dev/null 2>&1; then
  echo "Backend antwortet nicht unter ${API_PROXY_TARGET}."
  echo "Letzte Backend-Ausgabe:"
  tail -n 80 "${BACKEND_LOG}" 2>/dev/null || true
  exit 1
fi

echo "Starte Frontend auf http://localhost:${APP_PORT}"
PORT="${APP_PORT}" npm run start --workspace frontend