#!/usr/bin/with-contenv bashio
set -euo pipefail

if bashio::config.true 'USE_EXTERNAL_DB'; then
    bashio::log.info "External DB requested; not starting internal Postgres service."
    exit 0
fi

export PGDATA=/data/postgres
mkdir -p "$PGDATA"
chown -R postgres:postgres /data

if [[ ! -s "$PGDATA/PG_VERSION" ]]; then
    bashio::log.info "Initializing Postgres 17 data directory."
    su - postgres -c "/usr/lib/postgresql/17/bin/initdb -D $PGDATA"
fi

bashio::log.info "Starting Postgres 17 (listening on 127.0.0.1:5432)."
exec su - postgres -c "/usr/lib/postgresql/17/bin/postgres -D $PGDATA -c listen_addresses='127.0.0.1'"