#!/bin/sh
set -e

PGDATA="${PGDATA:-/var/lib/postgresql/data}"
PGLOG="/var/log/postgresql/postgresql.log"

mkdir -p "$PGDATA" /var/log/postgresql
chown postgres:postgres "$PGDATA" /var/log/postgresql

if [ ! -f "$PGDATA/PG_VERSION" ]; then
    su -s /bin/sh postgres -c "initdb -D $PGDATA"
    su -s /bin/sh postgres -c "pg_ctl start -D $PGDATA -w -l $PGLOG"
    su -s /bin/sh postgres -c "psql postgres -c \"CREATE USER mercury WITH PASSWORD 'mercury';\""
    su -s /bin/sh postgres -c "psql postgres -c \"CREATE DATABASE mercury OWNER mercury;\""
    su -s /bin/sh postgres -c "pg_ctl stop -D $PGDATA -w"
fi

su -s /bin/sh postgres -c "pg_ctl start -D $PGDATA -w -l $PGLOG"

exec /app/mercury