#!/bin/sh

set -e

if [ ! -s /etc/pretix/pretix.cfg ]; then
    echo "Creating /etc/pretix/pretix.cfg from environment" >&2
    missing=""
    for i in PRETIX_INSTANCE_NAME PRETIX_URL DATABASE_BACKEND DATABASE_NAME DATABASE_USER DATABASE_PASSWORD DATABASE_HOST MAIL_FROM MAIL_HOST REDIS_LOCATION CELERY_BACKEND CELERY_BROKER; do
        if eval "[ -z \"\${$i}\" ]"; then
            missing="${missing} $i"
        fi
    done
    if [ -n "${missing}" ]; then
        echo "You need to set these environment variables to configure Pretix:$missing" >&2
        exit 1
    fi
    cat >/etc/pretix/pretix.cfg  <<EOF
[pretix]
instance_name=${PRETIX_INSTANCE_NAME}
url=${PRETIX_URL}
currency=${PRETIX_CURRENCY:-EUR}
datadir=${PRETIX_DATADIR:-/data}
trust_x_forwarded_for=${PRETIX_TRUST_X_FORWARDED_FOR:-on}
trust_x_forwarded_proto=${PRETIX_TRUST_X_FORWARDED_PROTO:-on}

[database]
backend=${DATABASE_BACKEND}
name=${DATABASE_NAME}
user=${DATABASE_USER}
password=${DATABASE_PASSWORD}
host=${DATABASE_HOST}

[mail]
from=${MAIL_FROM}
host=${MAIL_HOST}

[redis]
location=${REDIS_LOCATION}
sessions=${REDIS_SESSION:-true}

[celery]
backend=${CELERY_BACKEND}
broker=${CELERY_BROKER}
EOF
fi

exec pretix "$@"