#!/bin/bash

set -o errexit
set -o pipefail
set -o nounset




if [ -z "${VBV_POSTGRES_USER}" ]; then
    base_postgres_image_default_user='postgres'
    export VBV_POSTGRES_USER="${base_postgres_image_default_user}"
fi
export VBV_DATABASE_URL="postgres://${VBV_POSTGRES_USER}:${VBV_POSTGRES_PASSWORD}@${VBV_POSTGRES_HOST}:${VBV_POSTGRES_PORT}/${VBV_POSTGRES_DB}"

postgres_ready() {
python << END
import sys

import psycopg2

try:
    psycopg2.connect(
        dbname="${VBV_POSTGRES_DB}",
        user="${VBV_POSTGRES_USER}",
        password="${VBV_POSTGRES_PASSWORD}",
        host="${VBV_POSTGRES_HOST}",
        port="${VBV_POSTGRES_PORT}",
    )
except psycopg2.OperationalError:
    sys.exit(-1)
sys.exit(0)

END
}
until postgres_ready; do
  >&2 echo 'Waiting for PostgreSQL to become available...'
  sleep 1
done
>&2 echo 'PostgreSQL is available'

exec "$@"