#!/bin/sh

if [[ $C2VCPROJ_SCRIPT_DIR = "" ]] ; then
  C2VCPROJ_SCRIPT_DIR="../../developer_scripts/examples"
  echo "Setting C2VCPROJ_SCRIPT_DIR to $C2VCPROJ_SCRIPT_DIR"
else
  echo "C2VCPROJ_SCRIPT_DIR already defined as $C2VCPROJ_SCRIPT_DIR"
fi  

echo "Creating VC7.1 solution & project files..."

# Creates a VC7.1 .vcproj file corresponding to a source file
# $1 is the source file
# $2 is the extension of the source file
# $3 is the parent solution file
#
create_project_file()
{
  srcfile=${1};
  ext=${2};
  slnfile=${3};
  
  # $srcname is a string of the form "source" were "source.some_extension" is the of the source file
  srcname=`echo $srcfile|sed -e "s/\.$ext//"`;
  
  # $projfile is a filename of the form "source.vcproj" were "source" is the basename of the source file
  projfile=`echo $srcfile|sed -e "s/\.$ext/\.vcproj/"`;
  
  # Creates a vcroj IFF it doesn't exist
  if [[ ! -e ./VC/$projfile ]]; then

      GUID=`printf "%012d" $RANDOM`
  
      echo "Creating $projfile under VC7.1 folder with GUID={00000000-0000-0000-0000-$GUID}"
  
      #
      # Takes a master .vcproj file, replaces the keywords 
      #   SOURCE for $srcname
      #   EXT    for $ext  
      # And moves the generated project file into the final folder
      #
      sed -e"s/SOURCE/$srcname/g"      $C2VCPROJ_SCRIPT_DIR/master.vcproj > ./src2sln_/temp.txt;
      sed -e"s/EXT/$ext/g"            ./src2sln_/temp.txt                 > ./src2sln_/temp2.txt;
      sed -e"s/ZZZZZZZZZZZZ/$GUID/g"  ./src2sln_/temp2.txt                > ./src2sln_/$projfile; 
      mv ./src2sln_/$projfile ./VC;
      
      
      #
      # Takes a master .sln entry line, replaces the keywords 
      #   TARGET  for $srcname
      #   PROJECT for $projfile  
      # And adds the line to parent solution file
      #
      echo "Adding $projfile to $slnfile"
      sed -e"s/TARGET/$srcname/g"      $C2VCPROJ_SCRIPT_DIR/master_proj_line.sln > ./src2sln_/temp.txt;
      sed -e"s/ZZZZZZZZZZZZ/$GUID/g"   ./src2sln_/temp.txt                       > ./src2sln_/temp2.txt;
      sed -e"s,PROJECT,VC/$projfile,g" ./src2sln_/temp2.txt                      > ./src2sln_/temp3.txt;
      
      mv ./src2sln_/$slnfile ./src2sln_/$slnfile.tmp
      cat ./src2sln_/$slnfile.tmp ./src2sln_/temp3.txt > ./src2sln_/$slnfile
      rm ./src2sln_/$slnfile.tmp
      
      rm -rf ./src2sln_/temp.txt
      rm -rf ./src2sln_/temp2.txt 
      rm -rf ./src2sln_/temp3.txt 
  fi
}


#
# Create a .vcproj Visual C++ makefile for each .C and .cpp file
# Usage: C2vcproj folder1 ...
#

# For each folder in parameters list
for h in $@ ; do
if [[ -d $h ]]; then
  cd $h;
  echo "In " $h;

  # Creates a vcroj IFF it doesn't exist
  if [[ ! -e "skip_vcproj_auto_generation" ]]; then
	  pkg=`basename $h`
	  
	  # Create a VC subdirectory IFF it doesn't already exists
	  if [[ ! -e "VC" ]]; then
	    mkdir VC
	  fi
	  
	  # ALWAYS create temporary subdirectory "src2sln_"
	  if [[ -e src2sln_ ]]; then
	    rm -r src2sln_;
	  fi
	  mkdir src2sln_;

	  # $sp is the filename of the solution for for VC71
	  sp=$pkg".sln"

	  
	  echo "Creating $sp"
	  cat $C2VCPROJ_SCRIPT_DIR/master_head.sln > ./src2sln_/$sp
	  
	  # For each .C and .cpp file file
	  for ext in C cpp ; do
	    for i in *.$ext ; do
	      if [[ ! $i = "*.$ext" ]]; then
	        # if $i contains a function "main()"
	        zgrep main $i >/dev/null 2>&1
	        if [[ $? == 0 ]]; then

	          create_project_file $i $ext $sp        
	          
	        fi
	      fi
	    done
	  done

	  mv ./src2sln_/$sp ./$sp;
	  
	  # Remove temporary subdirectory "src2sln_"
	  rm -r src2sln_
  else
    echo "  This folder already has solution and project files, skipping"
  fi

  cd ..;
fi
done