#!/bin/bash

set -e

if [ -n "$MYSQL_PORT_3306_TCP" ]; then
        if [ -z "$JOOMLA_DB_HOST" ]; then
                JOOMLA_DB_HOST='mysql'
        else
                echo >&2 "warning: both JOOMLA_DB_HOST and MYSQL_PORT_3306_TCP found"
                echo >&2 "  Connecting to JOOMLA_DB_HOST ($JOOMLA_DB_HOST)"
                echo >&2 "  instead of the linked mysql container"
        fi
fi

if [ -z "$JOOMLA_DB_HOST" ]; then
        echo >&2 "error: missing JOOMLA_DB_HOST and MYSQL_PORT_3306_TCP environment variables"
        echo >&2 "  Did you forget to --link some_mysql_container:mysql or set an external db"
        echo >&2 "  with -e JOOMLA_DB_HOST=hostname:port?"
        exit 1
fi

# If the DB user is 'root' then use the MySQL root password env var
: ${JOOMLA_DB_USER:=root}
if [ "$JOOMLA_DB_USER" = 'root' ]; then
        : ${JOOMLA_DB_PASSWORD:=$MYSQL_ENV_MYSQL_ROOT_PASSWORD}
fi
: ${JOOMLA_DB_NAME:=joomla}

if [ -z "$JOOMLA_DB_PASSWORD" ]; then
        echo >&2 "error: missing required JOOMLA_DB_PASSWORD environment variable"
        echo >&2 "  Did you forget to -e JOOMLA_DB_PASSWORD=... ?"
        echo >&2
        echo >&2 "  (Also of interest might be JOOMLA_DB_USER and JOOMLA_DB_NAME.)"
        exit 1
fi

if ! [ -e index.php -a -e libraries/cms/version/version.php ]; then
        echo >&2 "Joomla not found in $(pwd) - copying now..."

        if [ "$(ls -A)" ]; then
                echo >&2 "WARNING: $(pwd) is not empty - press Ctrl+C now if this is an error!"
                ( set -x; ls -A; sleep 10 )
        fi

        tar cf - --one-file-system -C /usr/src/joomla . | tar xf -

        if [ ! -e .htaccess ]; then
                # NOTE: The "Indexes" option is disabled in the php:apache base image so we use a customized .htaccess
                cp /joomla-htaccess.txt .htaccess
                chown www-data:www-data .htaccess
        fi

        echo >&2 "Complete! Joomla has been successfully copied to $(pwd)"
fi

# Ensure the MySQL Database is created
php /makedb.php "$JOOMLA_DB_HOST" "$JOOMLA_DB_USER" "$JOOMLA_DB_PASSWORD" "$JOOMLA_DB_NAME"

echo >&2 "========================================================================"
echo >&2
echo >&2 "This server is now configured to run Joomla!"
echo >&2 "You will need the following database information to install Joomla:"
echo >&2 "Host Name: $JOOMLA_DB_HOST"
echo >&2 "Database Name: $JOOMLA_DB_NAME"
echo >&2 "Database Username: $JOOMLA_DB_USER"
echo >&2 "Database Password: $JOOMLA_DB_PASSWORD"
echo >&2
echo >&2 "========================================================================"

exec "$@"