# Update the jar used to run the application.
#

version= getParam( 'version', 'devel', 'Autoplot version number', [ 'latest', 'devel', '20160227a' ] )

# find the physical Jar file for Autoplot
from org.virbo.autoplot import AutoplotUI
r1= AutoplotUI.getClassLoader().getResource("org/autoplot/AutoplotUI.class")
if ( r1==None ):
    r1= AutoplotUI.getClassLoader().getResource("org/virbo/autoplot/AutoplotUI.class")
resource= r1.toString()
if ( resource.startswith('jar:file:') ) :
    i2= resource.index('!')
    jarfile= resource[9:i2]
    print 'current jar file: ' + jarfile
else:
    raise Exception('unable to update jar file, autoplot.jar not found.')
    
from java.io import File
from java.nio.file import Files, FileSystems,Paths    
from javax.swing import JOptionPane

new=''
if ( jarfile.find( 'autoplot.jar' )>-1 ):  # may end with version
    
    if ( not jarfile.endswith('autoplot.jar') ):
        i= jarfile.find( 'autoplot.jar' )
        jarfile= jarfile[0:i+12]

    response= JOptionPane.showConfirmDialog(getViewWindow(),'replace '+jarfile+
       (' with http://autoplot.org/jnlp/%s/autoplot.jar?' % version),'update',JOptionPane.OK_CANCEL_OPTION )
    print 'response=', response
    if ( response==JOptionPane.OK_OPTION ):
                          
        print 'replacing single jar version of autoplot in ' + jarfile
        new= downloadResourceAsTempFile(URL('http://autoplot.org/jnlp/%s/autoplot.jar' % version ),3600,monitor)
        new= new.toString()
        
        if ( File(jarfile).exists() ):
            print 'jarfile '+jarfile+' exists.'
            if Files.isSymbolicLink( File(jarfile).toPath() ):
                print 'removing symbolic link '+jarfile
                File(jarfile).delete()
            elif ( jarfile.endswith('autoplot.jar') ):
                print 'renaming ' + jarfile + ' to ' + jarfile+'.t'
                r= File(jarfile).renameTo(File(jarfile+'.t'))
                if ( r!=0 ):
                    raise Exception('cannot mv ' + jarfile + ' ' + jarfile+'.old' )
                print 'deleting '+jarfile
                if ( not File(jarfile).delete() ):
                    raise Exception('cannot rm '+jarfile )
        else:
            print 'jarfile '+jarfile + ' does not exist.  Deleting anyway because it might be symlink'            
            File(jarfile).delete()
        print 'renaming downloaded file to '+jarfile+'.'+version
        File( new ).renameTo( File( jarfile+'.'+version ) )
        Files.createSymbolicLink( Paths.get(jarfile,[]),Paths.get(jarfile+'.'+version,[]),[])
    else:
        new= 'abort'
        
if ( new=='' ):
    JOptionPane.showMessageDialog(getViewWindow(),'unable to update','update failed, unable to find autoplot.jar.',JOptionPane.WARNING_MESSAGE)
elif ( new=='abort' ):
    pass
else:            
    JOptionPane.showMessageDialog(getViewWindow(),'updated to '+version+'. Restart Autoplot.','update',JOptionPane.INFORMATION_MESSAGE)