#!/usr/bin/env bash
# Container entrypoint: bring the accounts schema up to head, then serve.
#
# Alembic runs before uvicorn so a fresh Postgres volume gets its tables. It is
# retried because `db` can still be finishing startup even though compose waits on
# its healthcheck — a cold volume's first connection may race the server becoming
# ready to accept the migration.
set -euo pipefail

cd /app/backend

max=10
tries=0
echo "==> Running database migrations (alembic upgrade head)"
until alembic upgrade head; do
  tries=$((tries + 1))
  if [ "$tries" -ge "$max" ]; then
    echo "!! alembic upgrade head failed after ${max} attempts; giving up" >&2
    exit 1
  fi
  echo "   migration attempt ${tries}/${max} failed; retrying in 3s..." >&2
  sleep 3
done

echo "==> Starting uvicorn on 0.0.0.0:${PORT:-8137} with ${WORKERS:-4} worker(s)"
exec uvicorn app:app --host 0.0.0.0 --port "${PORT:-8137}" --workers "${WORKERS:-4}"