#!/bin/bash

################################################################################
## Creates vmware and vbox (script creation for vbox is not implented yet)
## runscripts from xmlfiles.
## Use template file runvmware-v2 for executeables
##
##
## Structure:
##   ${vmdir}/$image.xml                    configurationfile
##   ${vmdir}/$image.vmdk                   vmware image file 
##   ${vmdir}/$image.vbox                   vbox image file 
##   ${vmdir}/runscripts/$pool/*.vmware     vmware runscript 
##   ${vmdir}/runscripts/$pool/*.vbox       virtualbox runscript 
##   ${vmdir}/templates/runvmware-v2        image exec template script
################################################################################

#TODO: check first if this xml file should be used, if not jump out of the
# while loop. reducee checks and resources

# Just needed if vmdir is somewhere else
vmdir="." && cd ${vmdir}

# File for dektopentrys
#TODO: where to put? temporary test file, we should delete it or move it
# later, else there isnt a valid entryfile till this script is finished
desktopentry="${vmdir}/desktopentrys"

# template for runvmware
templatevmware="${vmdir}/templates/runvmware-v2"


# Take all xml files and work with them
for xml in *.xml;do
  
  # converts the XML file to utf-8, whyever we need that
  # inefficient here, because we don't need utf-8 for every xml file
  # but most secure place. Else the structure gets screwed.
  #TODO: perhaps we can kick out the whole UTF-8 shit, if the admins
  # are not able to give us the correct format, we shouldnt fix it
  iconv -c -f utf-8 -t utf-8 < ${xml} > ${xml}.utf


  ##############################################################################
  ## get needed information from xml file and check them if needed
  ##############################################################################

 
  # get image name
  image=`grep -i "<image_name param=\"" ${xml} | awk -F "\"" '{ print $2 }'`

  # Test if correct defined
  image_type=`echo ${image}|sed 's/.*\.//'`
  if [ "${image_type}" != "vmdk"  -a  "${image_type}" != "vdi" ]; then
    # TODO: Test
    echo "PANIC, image is not correct defined in ${xml}."
    echo "Image has to end with vdi or vmdk!"
    exit 0
  fi

  # Test if image is available
  if [ ! -f ${image} ]; then
    echo "PANIC, image defined in ${xml} not available"
    exit 0
  fi


  # get information if the current image should be used
  # active when active=1 image, else disabled
  active=`grep -i "<active param=\"true\"" ${xml} | wc -l`


  # get list where the current image should be used
  pools=`grep -i "<pools param=\"" ${xml} | awk -F "\"" '{ print $2 }'`

 
  # Virtualmachine (vmware or virtualbox)?
  vm=`grep -i "<virtualmachine param=\"" ${xml} | awk -F "\"" '{ print $2 }'`
  # Test if correct defined
  if [ "${vm}" != "vbox"  -a  "${vm}" != "vmware" ]; then
    # TODO: Test
    echo "PANIC, virtualmachine not correct defined in ${xml}"
    exit 0
  fi

  # Test if vbox and wrong image
  if [ "${vm}" = "vbox"  -a  "${image_type}" != "vdi" ]; then
    # TODO: Test
    echo "PANIC, virtualmachine vbox cant use image type defined in ${xml}"
    exit 0
  fi

  # Test if vmware and wrong image 
  if [ "${vm}" = "vmware"  -a  "${image_type}" != "vmdk" ]; then
    # TODO: Test
    echo "PANIC, virtualmachine vmware cant use image type defined in ${xml}"
    exit 0
  fi

  
  # Connectiontype of vm (nat or bridged)?
  network=`grep -i "<network param=\"" ${xml} | awk -F "\"" '{ print $2 }'`

  # Test if correct defined
  if [ "${network}" != "nat"  -a  "${network}" != "bridged" ]; then
    # TODO: test
    echo "PANIC, network connection not correct defined in ${xml}"
    exit 0
  fi

  
  # os running in vmware?
  os=`grep -i "<os param=\"" ${xml} | awk -F "\"" '{ print $2 }'`
  if [ "${os}" != "Linux"  -a  "${os}" != "Windows XP" ]; then
    # TODO: test
    echo "PANIC, OS in virtual machine not correct defined in ${xml}"
    exit 0
  fi
    
   
  # get short image description
  short_description=`grep "short_description param=\"" ${xml}.utf | sed -e "s/&.*;/; /g" | awk -F "\"" '{print $2}'`
  # if ${short_description} not defined use ${image}
  short_description=${short_description:-"${image}"}
 

  # Get the long image description
  long_description=`grep "long_description param=\"" ${xml}.utf | sed -e "s/&.*;/; /g" | awk -F "\"" '{print $2}'`


  # Informations if we need for XDM
  xdm=`grep "xdm param=\"" ${xml} | awk -F "\"" '{print $2}'`

  # Test if correct defined
  if [ "${xdm}" != "true"  -a  "${xdm}" != "false" ]; then
    # TODO: test
    echo "PANIC, XDM usage not correct defined in ${xml}"
    exit 0
  fi

  
  ##############################################################################
  ## main part,
  ##############################################################################
  # Main part, creates desktopentry and image run script

  # check if ${vmdir}/runscripts/ is available
  if [ ! -d ${vmdir}/runscripts ]; then
    mkdir ${vmdir}/runscripts
  fi
 
  # work with the different pools and...
  for i in ${pools}; do 
    # ... make sure we have the different pool directorys, else create it
    if [ ! -d ${vmdir}/runscripts/${i} ]; then
      mkdir -p ${vmdir}/runscripts/${i}
    fi
    # ... remove startscript if it isn't active.
    if [ ${active} -ne 1 ]; then
      if [ -f ${vmdir}/runscripts/${i}/${image}.vmware -o runscripts/${i}/${image}.virtualbox ]; then
        rm -rf ${vmdir}/runscripts/${i}/${image}.*
      fi
    fi


    # ... create desktopentry
    if [ ${active} -eq 1 ]; then

      # create desktopentry
      echo -e "\nCreating runfiles for ${image} and pool ${i}\n"
      # create the desktopentry
      #TODO: change it with < EOF, >> isnt nice for so much lines
      echo "Desktop entry for ${image}" >> ${desktopentry}
      echo "[Desktop Entry]" >> ${desktopentry}
      echo "X-SuSE-translate=true" >> ${desktopentry}
      echo "Encoding=UTF-8" >> ${desktopentry}
      echo "Type=XSession" >> ${desktopentry}
      #TODO: Fix path
      echo "Exec=/path/to/the/execfile/${image}" >> ${desktopentry}
      echo "Name=${short_description}" >> ${desktopentry}
      echo "Comment=${comment}" >> ${desktopentry}
      #TODO: I dont like SLXGrp as variable herein, why we need it here?
      #echo "SLXGrp=${pools}" >> ${desktopentry}
      #TODO: do we need XDM configuration? -> Chemie pool
      #echo "XDM=${xdm}" >> ${desktopentry}
      echo "" >> ${desktopentry}
    fi

    
################################################################################
## TODO: remember default/ chemie/ option (desktopentrys! and runfiles)
## delete old desktop list
## fucking pools/directory hirarchy... test it with running script and find
## that way the error
################################################################################

    # If we have vmware, build execute from template
    if [ "${vm}" = "vmware" ]; then

      sed -e "s/imagename=\"CHANGEIT\"/imagename=\"${image}\"/" \
          -e "s/displayname=\"CHANGEIT\"/displayname=\"${short_description}\"/" \
          -e "s/vmostype=\"CHANGEIT\"/vmostype=\"${os}\"/" \
          -e "s/network=\"CHANGEIT\"/network=\"${network}\"/" \
      ${templatevmware} \
      > ${vmdir}/runscripts/${i}/${image}.runvmware

    # if we have virtualbox, can only be vbox cause checked above
    else 
      echo "Currently Virtualbox isn't implented"
      exit 0
    fi


  done

done


# Delete all .utf files, we dont need them anymore
rm -f *.xml.utf