@echo off
SETLOCAL

if "%serverlang%" == "" set serverlang=en
set java_min_version=1.5.0_00
set PROGNAME=gs2-server
if "%PROGABBR%" == "" set PROGABBR=GSI
pushd "%CD%"
CD /D "%~dp0"

echo Greenstone 2 Server
echo Copyright (C) 2009, New Zealand Digital Library Project, University Of Waikato
echo This software comes with ABSOLUTELY NO WARRANTY; for details see LICENSE.txt
echo This is free software, and you are welcome to redistribute it

::  -------- Run the Greenstone 2 Server --------

::  ---- Determine GSDLHOME ----
set gsdl2path=

:: Some users may set the above line manually
if "%gsdl2path%" == "" (
   set GSDLHOME=%CD%
   set gsdl2path=%CD%
)
echo GS2 Home: %GSDLHOME%

:: Setup Greenstone2, unless it has already been done
:: If either GSDLHOME or GSDLOS is not set, need to run setup.bat first
:: OR operations in an IF stmt: http://fixunix.com/ms-dos/21057-how-implement-if-condition-batch-file.html
for %%i in ("%GSDLOS%" "%GSDLHOME%") do if %%i == "" set OR=True
if "%OR%" == "True" (
   pushd "%gsdl2path%"
   call setup.bat
rem   echo **** GSDLOS: %GSDLOS% and GSDLHOME: %GSDLHOME%
   popd
)


:: First test that there is actually something that can be run...
:: Exit if the apache-httpd folder doesn't exist for some reason
:: (The errors reported when the apache webserver does not exist 
:: in the correct location are not at all helpful).

:: "You cannot use the if command to test directly for a directory, but
:: the null (NUL) device does exist in every directory. As a result, you
:: can test for the null device to determine whether a directory exists."
rem echo "%GSDLHOME%\apache-httpd\nul"
if not exist "%GSDLHOME%\apache-httpd\*" (
    echo.
    echo UNABLE TO CONTINUE: There is no apache-httpd directory.
    echo It does not look like the local apache webserver has been installed.
    echo Exiting...
    echo.
    goto exit
)
:: exit 1


:: If there's no llssite.cfg file, copy from the template
if exist "%GSDLHOME%\llssite.cfg" goto cfgfile
if exist "%GSDLHOME%\llssite.cfg.in" (
   copy "%GSDLHOME%\llssite.cfg.in" "%GSDLHOME%\llssite.cfg"
) else (
   echo Warning: could not find llssite.cfg.in to create llssite.cfg from.
)

:cfgfile
::  ---- Determine GSDLHOME ----
:: JRE_HOME or JAVA_HOME must be set correctly to run this program
bin\windows\search4j -m %java_min_version% > nul
echo.
:: In Java code, '...getResourceAsStream("build.properties")'
:: needs up to be in the right directory when run
if %ERRORLEVEL% equ 0 pushd %GSDL2PATH%

:: http://ss64.com/nt/call.html (and leave in trailing slash)
call :isinpath "%GSDLHOME%\lib\java"

:: After the call, we come back here
goto chkjava

:isinpath
:: http://ss64.com/nt/syntax-replace.html and http://ss64.com/nt/syntax-args.html
:: (Does not work: section "Finding items within the PATH environment variable")
:: Instead, we expand the filepath of parameter 1 to its full path and
:: try to subtract it from the classpath. 
::call set test_cpath=%%CLASSPATH:%~f1=%%
call set test_cpath=%%CLASSPATH:%1=%%

:: If there IS a difference in the classpath before and after,
:: then the filepath was already on the classpath
if not "%CLASSPATH%" == "%test_cpath%" (
   echo   - CLASSPATH already correct
   echo %CLASSPATH%
   goto :eof
)

:: If there was NO difference in the classpath before and after,
:: then the filepath needs to be added to the classpath
set CLASSPATH=%GSDLHOME%\lib\java;%CLASSPATH%

:: http://ss64.com/nt/for_r.html and (for call) http://ss64.com/nt/for.html
:: http://ss64.com/nt/syntax-args.html
FOR /R "%GSDLHOME%\lib\java" %%G IN (*.jar) DO call :putinpath "%%G"
echo   - Adjusted CLASSPATH
echo.
::echo CLASSPATH:& echo %CLASSPATH%
goto :eof


:putinpath
set jarfile=%1
::strip quotes around jarfile path, since we can't update classpath with quotes
set jarfile=%jarfile:"=%
echo jarfile: %jarfile%
set CLASSPATH=%CLASSPATH%;%jarfile%
goto :eof

:: ---- Check Java ----
:chkjava
:: call the script with source, so that we have the variables JAVA_EXECUTABLE and GS_JAVA_HOME it sets
set exit_status=0
:: Need to find Java. If found, JAVA_EXECUTABLE will be set
:: call findjava.bat %serverlang% %PROGNAME%
if "%GSDL3SRCHOME%" == "" (set _VERSION=2) else (set _VERSION=3)
call "%GSDLHOME%\findjava.bat"
if "%JAVA_EXECUTABLE%" == "" echo **** No Java executable found& goto exit
set PATH=%GS_JAVA_HOME%\bin;%PATH%


:: ---- Run the Greenstone Server Interface ----
:: Some informative messages to direct the users to the logs
if "%serverlang%" == "en" (
   echo ***************************************************************
   echo Starting the Greenstone Server Interface ^(GSI^)...
   echo.
   echo Server log messages go to:
   echo    "%GSDLHOME%\etc\logs-gsi\server.log"
   echo.
   echo Using Apache web server located at:
   echo    "%GSDLHOME%\apache-httpd\%GSDLOS%\bin\httpd"
   echo The Apache error log is at:
   echo    "%GSDLHOME%\apache-httpd\%GSDLOS%\logs\error_log"
   echo The Apache configuration file template is at:
   echo    "%GSDLHOME%\apache-httpd\%GSDLOS%\conf\httpd.conf.in"
   echo This is used to generate:
   echo    "%GSDLHOME%\apache-httpd\%GSDLOS%\conf\httpd.conf"
   echo    each time Enter Library is pressed or otherwise activated.
   echo ***************************************************************
   echo.
)
echo.

:: GLI launches gs2-server.bat with:
:: cmd /c start "window" "c:\path to\gs2-server.bat" --config=c:\path to\glisite.cfg [--quit=portnum]
:: The configfile param could contain spaces, in which case its space-separated parts spread over 
:: multiple parameters . Need to handle things the following way, since using quotes to embed the 
:: parameters breaks the start command, see http://ss64.com/nt/start.html
:: This script is launched by the start cmd as:
:: "c:\path to\gs2-server.bat" --config=c:\path to\config.cfg [--quit=portnum]. 
:: But if the parameter  following --config=<some string> doesn't start with a double hyphen, we
:: assume it to be part of the config parameter, as the configfile path may have contained spaces.

:: Store all parameters together in config file var: we may or may not have a portnumber
:: Get everything after the "--quit=", if anything, and store it in port var.  If no port, nothing to do.
set conf=%*
set port=%conf:*--quitport=%
if "%conf%" == "%port%" (
set port=
goto :runit
) else (
set port=%port:~1%
)

:: Because we got here, need to adjust conf by removing " --quitport=" from it and prefixing this to port
call set conf=%%conf:%port%=%%
set conf=%conf:~0,-12%
set port=--quitport=%port%

:: Remove trailing spaces from conf and port
:: (We'll put the all-important quotes around conf and port when the actual java cmd is launched)
set tmp=%conf%
call :trim %tmp%
set conf=%tmp%
set tmp=%port%
call :trim %port%
set port=%tmp%
set tmp=

goto :runit

::  http://www.computing.net/answers/programming/dos-batch-remove-trailing-space/9270.html
:trim
set tmp=%*
goto :eof

:runit 
::echo port: %port%& echo conf: %conf%& echo.& echo.
:: "%JAVA_EXECUTABLE%" org.greenstone.server.Server2 "%GSDLHOME%" "%serverlang%" %*
"%JAVA_EXECUTABLE%" org.greenstone.server.Server2 "%GSDLHOME%" "%serverlang%" "%conf%" "%port%"


:: The 1st argument to gs2-server.bat (if any) would be --config, the 2nd is the config filename. 
:: Both are stored in %conf% now. If the config file is glisite.cfg, then this script was launched through
:: GLI and would have opened a DOS console. Need to exit from this script then to close the console.
:: Remove --config= prefix and do a case insensitive comparison, since filepaths can have uppercase chars
if /i "%conf:~9%" == "%GSDLHOME%\glisite.cfg" goto quitcmd
goto exit

:: Exit the batch script (close the console)
:quitcmd
popd
ENDLOCAL
exit 0

:: Just end the script without closing the console
:exit
popd
ENDLOCAL