#!/bin/bash

function test-gsdlhome {
    if test -z "$GSDLHOME" ; then
	echo "" ;
	echo "Environment variable GSDLHOME not set." ;
	echo "  This needs to be set to run this gsicontrol command." ;
	echo "  Have you run 'source setup.bash'?" ;
	echo "" ;
	exit 1
    else
	echo "Using: " ;
	echo "  GSDLHOME = $GSDLHOME" ;
	echo "  GSDLOS   = $GSDLOS" ; 
    fi
}

function configure-cgi {
    test-gsdlhome
    if test ! -e $GSDLHOME/cgi-bin/gsdlsite.cfg ; then
	echo "Configuring cgi-bin/gsdlsite.cfg" ;
	sed "s@\*\*GSDLHOME\*\*@$GSDLHOME@g" cgi-bin/gsdlsite.cfg.in > cgi-bin/gsdlsite.cfg ;
    else
	echo "WARNING: Nothing done for make configure-cgi." ;
	echo "   If you wish to regenerate the file " ;
	echo "   $GSDLHOME/cgi-bin/gsdlsite.cfg" ;
	echo "   from scratch, delete the existing file first." ;
    fi
}

function configure-admin {
    test-gsdlhome
    echo "" ;
    echo "Configuring admin user password:" ;
    encrypted_password=`getpw` ;
    if [ $? = "0" ] ; then
	echo -e "[admin]\n<enabled>true\n<groups>administrator,colbuilder,all-collections-editor\n<password>$encrypted_password\n<username>admin" \
	    | txt2db -append "$GSDLHOME/etc/users.db" ;
    else
	echo "Did not set password" ;
    fi
    echo ""
}

function configure-port {
    test-gsdlhome
    echo "Enter port number to use:"
    read port ;
    if test ! -z $port ; then
	echo "Port: $port" ;
	echo "Stopping web server (if running)" ;
	web-stop-tested ;
	echo "Setting config file to use port $port";
	cat "$GSDLHOME/apache-httpd/$GSDLOS/conf/httpd.conf.in" \
	| sed "s@\*\*PORT\*\*@$port@g" \
	| sed "s@\*\*GSDLHOME\*\*@$GSDLHOME@g" \
	| sed "s@\*\*APACHE_HOME_OS\*\*@$GSDLHOME/apache-httpd/$GSDLOS@g" \
	> "$GSDLHOME/apache-httpd/$GSDLOS/conf/httpd.conf" ;
	echo "Type '$0 web-start' to start the web server running on port $port" ;
    fi ;
    echo "Done" ;
}


MONITOR_SUCCESS="MAKE SUCCESSFUL"
MONITOR_FAILED="MAKE FAILED"
MONITOR_FINISHED="MAKE DONE"

function configure-apache {
    test-gsdlhome
    configfile=$1 ;
    if [ "x$configfile" = "x" ]; then
	configfile="$GSDLHOME/llssite.cfg";
    fi ;
    echo "Configuring the apache webserver..." ;
    port=`egrep "^portnumber" $configfile | awk -F= '{print $2}'` ;
    echo $port | configure-port ;
    if test -e "$GSDLHOME/apache-httpd/$GSDLOS/conf/httpd.conf" ; then
	echo $MONITOR_SUCCESS;
    else
	echo $MONITOR_FAILED;
    fi
    echo $MONITOR_FINISHED
}

function configure-web {
    configure-cgi
    configure-apache $1
}

function web-status {
    test-gsdlhome
    $GSDLHOME/apache-httpd/$GSDLOS/bin/apachectl status
}

function web-start { 
    test-gsdlhome
    $GSDLHOME/apache-httpd/$GSDLOS/bin/apachectl start
    echo $MONITOR_SUCCESS
    echo $MONITOR_FINISHED
}

function web-restart {
    test-gsdlhome
    $GSDLHOME/apache-httpd/$GSDLOS/bin/apachectl restart
    echo $MONITOR_SUCCESS
    echo $MONITOR_FINISHED
}

function web-graceful {
    test-gsdlhome
    $GSDLHOME/apache-httpd/$GSDLOS/bin/apachectl graceful
    echo $MONITOR_SUCCESS
    echo $MONITOR_FINISHED
}

function web-stop-tested {
# This version runs without testing for GSDLHOME
# Useful to be run as a target when we know test-gsdlhome has already
# been done.  This avoids a unnecessary repetition of printing
# out the values of GSDLHOME and GSDLOS
    if test -e "$GSDLHOME/apache-httpd/$GSDLOS/conf/httpd.conf" ; then
	$GSDLHOME/apache-httpd/$GSDLOS/bin/apachectl stop ;
    fi
}

function web-stop {
    test-gsdlhome
    web-stop-tested
    echo $MONITOR_SUCCESS
    echo $MONITOR_FINISHED
}


if [[ $# < 1  || $# > 2 ]] ; then
    echo ""
    echo "   Usage: $0 <command>"
    echo "          where <command> is any of the following: "
    echo "   web-start"
    echo "   web-stop"
    echo "   web-restart"
    echo "   web-status"
    echo "   web-graceful"
    echo "   configure-admin"
    echo "   configure-web [config-filename]"
    echo "   configure-apache [config-filename]"
    echo "   configure-port"
    echo "   configure-cgi"
    echo "   test-gsdlhome"
    echo "   web-stop-tested"
    echo ""
    exit 0
fi

target=$1
configfile=$2

case $target in
    web-start)
	web-start;;
    web-stop)
	web-stop;;
    web-restart)
	web-restart;;
    web-status)
	web-status;;
    web-graceful)
	web-graceful;;
    configure-admin)
	configure-admin;;
    configure-web)
	configure-web $configfile;;
    configure-port)
	configure-port;;
    configure-apache)
	configure-apache $configfile;;
    configure-cgi)
	configure-cgi;;
    test-gsdlhome)
	test-gsdlhome;;
    web-stop-tested)
	web-stop-tested;;
esac

exit;