#!/bin/bash
# Description:
# This script will install IBM i Access Client Solutions in the Applications folder on Mac OS X 
#
# Usage: ./install_acs
#

args=$@
args_length=$#
arg1=$1
prefix_arg1=${arg1:0:9}
suffix_arg1=${arg1:9}
printhelp="no"
default_noparms="no"
reset_start_over="no"
quiet_mode="no"
exclude_functions="no"
install_type_shared="no"
install_type_preset="no"
declare source
declare target
declare source_AcsConfig
declare target_AcsConfig


function copyProductFiles {
  echo "Copying product files" >> $HOME/IBM/install_acs_log.txt
  unzip -oq acs_mac_app.zip -d /Applications
  cp -Rpf "$source/Documentation" "$target"
  cp -Rpf "$source/Fonts" "$target"
  cp -Rpf "$source/Icons" "$target"
  # Do not copy the install scripts
  #cp -Rpf "$source/Mac_Application" "$target"
  #cp -Rpf "$source/Linux_Application" "$target"
  #cp -Rpf "$source/Windows_Application" "$target"
  cp -Rpf "$source/Start_Programs" "$target"
  cp -Rpf "$source/acsbundle.jar" "$target"

  if [ -e "$source/acs_bak.zip" ]; then
    cp -Rpf "$source/acs_bak.zip" "$target"
  fi

  if [ "yes" == $1 ]; then
    # The p in the following command sometimes causes the following message:
    # "cp: chflags: /Application/IBM i Access Client Solutions.app/AcsConfig.properties: Operation not permitted"
    # The message only seems to occur when copying an unmodified AcsConfig.properties file from a remote source location.
    # However, all testing indicates the file does get copied along with the timestamp from the source location.
    # If we remove the p, then the timestamp is not taken from the source file and gets changed to be current time.
    # The message can be safely ignored.
    cp -Rpf "$source_AcsConfig" "$target"
    echo "Copied AcsConfig.properties" >> $HOME/IBM/install_acs_log.txt
  else
    echo "Did not copy AcsConfig.properties" >> $HOME/IBM/install_acs_log.txt
  fi
}


function customize_local_install {
  echo "Customizing local installation" >> $HOME/IBM/install_acs_log.txt
  copyProductFiles yes
  exclude_functions=`osascript user_dialog.scpt`

  # keep track of length returned so we can see if we stripped sub_string
  exclude_length_before=${#exclude_functions}

  # remove the answer we got for whether we should restrict the printer filter
  sub_string='splf_restrict,'
  exclude_functions=${exclude_functions%$sub_string*}
  exclude_length=${#exclude_functions}

  exclude_length=${#exclude_functions}
  if [ $exclude_length -eq 0 ]; then
    echo "Wrote AcsConfig.properties with no functions excluded" >> $HOME/IBM/install_acs_log.txt
  else
    echo " " >> "$target_AcsConfig"
    echo "# ——— $str_date ——— " >> "$target_AcsConfig"
    echo "com.ibm.iaccess.ExcludeComps=$exclude_functions" >> "$target_AcsConfig"
    echo "Wrote AcsConfig.properties and excluded: $exclude_functions" >> $HOME/IBM/install_acs_log.txt
  fi


  # See if we are suppose to set the RestrictFilter property
  if [ $exclude_length_before -ne $exclude_length ]; then
    echo " " >> "$target_AcsConfig"
    echo "# ——— $str_date ——— " >> "$target_AcsConfig"
    echo "com.ibm.iaccess.splf.FilterRestricted=true" >> "$target_AcsConfig"
    echo "Wrote AcsConfig.properties com.ibm.iaccess.splf.FilterRestricted=true" >> $HOME/IBM/install_acs_log.txt

  fi

}


# Begin Main
#
# Verify parameters
if [ $args_length -gt 1 ]; then
  return_value=`osascript help_text.scpt`
  exit
fi
if [ $args_length -eq 1 ]; then
  if [[ ($prefix_arg1 != /Exclude=) && ($prefix_arg1 != /exclude=) && ($arg1 != /Reset) && ($arg1 != /reset) && ($arg1 != /Q) && ($arg1 != /q) ]]; then
    return_value=`osascript help_text.scpt`
    exit
  fi 
fi

#Create the IBM directory for the install log
if [ ! -d $HOME/IBM ]; then
  mkdir $HOME/IBM
fi


str_date=`date`
echo "BEGIN =============== $str_date =============== BEGIN" >> $HOME/IBM/install_acs_log.txt

if [ $args_length -eq 0 ]; then
   default_noparms="yes"
   echo "No args specified" >> $HOME/IBM/install_acs_log.txt
else
   echo "Command-line args: $args" >> $HOME/IBM/install_acs_log.txt
   if [[ ($prefix_arg1 == /Exclude=) || ($prefix_arg1 == /exclude=) ]]; then
     check=${#suffix_arg1}
     if [ $check -gt 0 ]; then
       exclude_functions=$suffix_arg1
     else
       default_noparms="yes"
     fi
   elif [[ ($arg1 == /Reset) || ($arg1 == /reset) ]]; then
     reset_start_over="yes"
   elif [[ ($arg1 == /Q) || ($arg1 == /q) ]]; then
     quiet_mode="yes"
     default_noparms="yes"
   else
     dummy=do_nothing
   fi
fi



#The following two directories are needed for using acslaunch_mac when JDK6 is not installed
#However, we are not allowed to create them starting with OS X 10.11 El Capitan.  If users
#want to use acslaunch_mac on El Capitan, they will need to install JDK6.
dir1=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk
dir2=/System/Library/Java/Support/Deploy.bundle
swversion=`sw_vers | grep "ProductVersion" | awk -F . '{print $2}'`
if [ $swversion -lt 11 ]; then
  if [ ! -d $dir1 ]; then
    sudo mkdir -p $dir1
  fi
  if [ ! -d $dir2 ]; then
    sudo mkdir -p $dir2
  fi
fi

# cd to the directory where this script exists
cd "$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
echo "script: ${0}" >> $HOME/IBM/install_acs_log.txt

source=`pwd`/..
target="/Applications/IBM i Access Client Solutions.app"
echo "source: $source" >> $HOME/IBM/install_acs_log.txt
echo "InstallPath: $target" >> $HOME/IBM/install_acs_log.txt

source_AcsConfig="$source/AcsConfig.properties"
target_AcsConfig="$target/AcsConfig.properties"


# check for install_type_shared or install_type_preset
if [ -e "$source_AcsConfig" ]; then
  count=`grep -c "com.ibm.iaccess.InstallType=shared" "$source_AcsConfig"`
  if [ $count -gt 0 ]; then
    echo "com.ibm.iaccess.InstallType=shared was found" >> $HOME/IBM/install_acs_log.txt
    install_type_share="yes"
    echo "install_type_share is treated like install_type_preset on Mac" >> $HOME/IBM/install_acs_log.txt
    install_type_preset="yes"
  fi
  count=`grep -c "com.ibm.iaccess.InstallType=preset" "$source_AcsConfig"`
  if [ $count -gt 0 ]; then
    echo "com.ibm.iaccess.InstallType=preset was found" >> $HOME/IBM/install_acs_log.txt
    install_type_preset="yes"
  fi
fi


if [ "yes" == $install_type_preset ]; then
  echo "Install: preset functions by AdminConfig" >> $HOME/IBM/install_acs_log.txt
  if [ "no" == $default_noparms ]; then
    echo "$args ignored because Admin preset product functions" >> $HOME/IBM/install_acs_log.txt
  fi
  copyProductFiles yes
  echo "Install: Copied product files and configuration set by admin" >> $HOME/IBM/install_acs_log.txt
elif [ "yes" == $default_noparms ]; then
  if [ -e "$target_AcsConfig" ]; then
    # This is assumed to be the upgrade path
    echo "Upgrading existing installation" >> $HOME/IBM/install_acs_log.txt
    copyProductFiles no
    echo "Install: Did not write AcsConfig.properties" >> $HOME/IBM/install_acs_log.txt
  else
    # AcsConfig.properties does not exist at target.  We assume never been installed.
    customize_local_install
  fi
elif [ "no" != $exclude_functions ]; then
  # Excluded functions were specified
  if [ -e "$target_AcsConfig" ]; then
    # Do not overlay AcsConfig.properties
    copyProductFiles no
  else
    copyProductFiles yes
  fi
  echo " " >> "$target_AcsConfig"
  echo "# ——— $str_date ———" >> "$target_AcsConfig"
  echo "com.ibm.iaccess.ExcludeComps=$exclude_functions" >> "$target_AcsConfig"
  echo "Excluded functions: $exclude_functions" >> $HOME/IBM/install_acs_log.txt 
elif [ "yes" == $reset_start_over ]; then
  echo "User requested a configuration reset" >> $HOME/IBM/install_acs_log.txt 
  customize_local_install
fi


echo " "
echo " Installation completed."
echo " You may exit this terminal window."
echo " "
echo "END ================= `date` ================= END" >> $HOME/IBM/install_acs_log.txt
if [ "no" == $quiet_mode ]; then
  return_value=`osascript completion_text.scpt`
fi