backend/database/wait-for-postgres.sh

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

CONTAINER="${POSTGRES_CONTAINER:-meshkee-postgres}"
DB_USER="${POSTGRES_USER:-meshkee}"
DB_NAME="${POSTGRES_DB:-meshkee_cms}"
MAX_ATTEMPTS="${WAIT_MAX_ATTEMPTS:-60}"
SLEEP_SECONDS="${WAIT_SLEEP_SECONDS:-1}"

echo "Waiting for PostgreSQL in container '$CONTAINER'..."

for ((attempt = 1; attempt <= MAX_ATTEMPTS; attempt++)); do
  if docker exec "$CONTAINER" pg_isready -U "$DB_USER" -d "$DB_NAME" >/dev/null 2>&1; then
    if docker exec "$CONTAINER" psql -U "$DB_USER" -d "$DB_NAME" -tAc \
      "SELECT 1 FROM information_schema.tables WHERE table_schema = 'public' AND table_name = 'users'" \
      2>/dev/null | grep -q 1; then
      echo "PostgreSQL is ready."
      exit 0
    fi
  fi

  if [[ "$attempt" -eq "$MAX_ATTEMPTS" ]]; then
    echo "PostgreSQL did not become ready within ${MAX_ATTEMPTS}s." >&2
    echo "Check: docker compose ps && docker compose logs postgres" >&2
    exit 1
  fi

  sleep "$SLEEP_SECONDS"
done