#!/bin/bash

##==============================================================================
##
## Be sure the CIMPLE root directory is the current directory.
##
##==============================================================================

if [ ! -f mak/config.mak ]; then
    echo "$0: configure must run in the CIMPLE root directory"
    exit 1
fi

##==============================================================================
##
## Get options from command line.
##
##==============================================================================

help=

for opt
do

  optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'`

  case $opt in

    -h | --help)
      help=1
      ;;

    --host=*)
      host=$optarg 
      ;;

    --prefix=*)
      prefix=$optarg 
      ;;

    --bindir=*)
      bindir=$optarg
      ;;

    --libdir=*)
      libdir=$optarg
      ;;

    --includedir=*)
      includedir=$optarg
      ;;

    --datadir=*)
      datadir=$optarg
      ;;

    --with-pegasus=*)
      with_pegasus=$optarg
      ;;

    --with-pegasus-libdir=*)
      with_pegasus_libdir=$optarg
      ;;

    --with-pegasus-includes=*)
      with_pegasus_includes=$optarg
      ;;

    --with-pegasus-env)
      with_pegasus_env=1
      ;;

    --with-openwbem=*)
      with_openwbem=$optarg
      ;;

    --with-cmpi=*)
      with_cmpi=$optarg
      ;;

    --with-schema=*)
      with_schema=$optarg 
      ;;

    --enable-debug)
      enable_debug=1
      ;;

    --enable-static)
      enable_static=1
      ;;

    --with-namespace=*)
      with_namespace=$optarg 
      ;;

    --enable-adapter-trace)
      enable_adapter_trace=1
      ;;

    --enable-embedded-instances)
      enable_embedded_instances=1
      ;;

    --enable-scheduler)
      enable_scheduler=1
      ;;

    --disable-log-macros)
      disable_log_macros=1
      ;;

    --cimplehome-envvar=*)
      cimplehome_envvar=$optarg
      ;;

    *)
      echo "$0: unknown option:  $opt"
      exit 1
      ;;

  esac
done

##==============================================================================
##
## Help
##
##==============================================================================

if [ "$help" = "1" ]; then
    cat config.help
    exit
fi

##==============================================================================
##
## Deduce options.
##
##==============================================================================

# --with-pegasus-env

if [ "$with_pegasus_env" = "1" ]; then
  if [ -z "$PEGASUS_HOME" ]; then
    echo "$0: --with-pegasus-env needs PEGASUS_HOME environment variable."
    exit 1
  fi

  if [ -z "$PEGASUS_ROOT" ]; then
    echo "$0: --with-pegasus-env needs PEGASUS_ROOT environment variable."
    exit 1
  fi

  if [ -z "$PEGASUS_PLATFORM" ]; then
    echo "$0: --with-pegasus-env needs PEGASUS_PLATFORM environment variable."
    exit 1
  fi

  if [ -n "$PEGASUS_DEBUG" ]; then
    if [ -z "$enable_debug" ]; then
        enable_debug_via_PEGASUS_DEBUG=1
    fi
    enable_debug=1
  fi

  platform=$PEGASUS_PLATFORM

  case "$platform" in

      LINUX_IX86_GNU)
        host=i686-unknown-linux-gnu
        ;;

      LINUX_X86_64_GNU)
        host=x86_64-unknown-linux-gnu
        ;;

      LINUX_IA64_GNU)
        host=ia64-unknown-linux-gnu
        ;;

      LINUX_S390_GNU)
        host=s390-unknown-linux-gnu
        ;;

      LINUX_S390X_GNU)
        host=s390x-unknown-linux-gnu
        ;;

      LINUX_PPC_GNU)
        host=ppc-unknown-linux-gnu
        ;;

      LINUX_PPC64_GNU)
        host=ppc64-unknown-linux-gnu
        ;;

      SOLARIS_SPARC_GNU)
        host=sparc-sun-solaris-gnu
        ;;

      SOLARIS_IX86_CC)
        host=x86-sun-solaris-cc
        ;;

      SOLARIS_SPARC_CC)
        host=sparc-sun-solaris-cc
        ;;

      SOLARIS_X86_64_CC)
        host=x86_64-sun-solaris-cc
        ;;

      SOLARIS_SPARC_64_CC)
        host=sparc_64-sun-solaris-cc
        ;;

      DARWIN_IX86_GNU)
        host=i386-apple-darwin-gnu
        ;;

      *)
          echo "$0: unsupported platform: PEGASUS_PLATFORM=$PEGASUS_PLATFORM"
          exit 1
          ;;

  esac

  prefix=$PEGASUS_HOME
  libdir=$PEGASUS_HOME/lib
  with_pegasus=$PEGASUS_HOME
  with_pegasus_libdir=$PEGASUS_HOME/lib
  with_pegasus_includes=$PEGASUS_ROOT/src

  if [ -z "$with_cmpi" ]; then
    with_cmpi=$PEGASUS_ROOT/src/Pegasus/Provider/CMPI
  fi

fi

# --host: Set platform and libbase based on host input parameter or by guessing

if [ -z "$host" ]; then
  host=`./config.guess`
fi

case "$host" in

    i686-unknown-linux-gnu)
        platform=LINUX_IX86_GNU
        libbase=lib
        ;;

    x86_64-unknown-linux-gnu)
        platform=LINUX_X86_64_GNU
        libbase=lib64
        ;;

    ia64-unknown-linux-gnu)
        platform=LINUX_IA64_GNU
        libbase=lib
        ;;

    s390-unknown-linux-gnu)
        platform=LINUX_S390_GNU
        libbase=lib
        ;;

    s390x-unknown-linux-gnu)
        platform=LINUX_S390X_GNU
        libbase=lib64
        ;;

    ppc-unknown-linux-gnu)
        platform=LINUX_PPC_GNU
        libbase=lib
        ;;

    ppc64-unknown-linux-gnu)
        platform=LINUX_PPC64_GNU
        libbase=lib64
        ;;

    arm-wrs-vxworks-gnu)
        platform=VXWORKS_XSCALE_GNU
        libbase=lib
        enable_static=1
        ;;

    sparc-sun-solaris-gnu)
        platform=SOLARIS_SPARC_GNU
        libbase=lib
        ;;

    x86-sun-solaris-cc)
        platform=SOLARIS_IX86_CC
        libbase=lib
        ;;

    sparc-sun-solaris-cc)
        platform=SOLARIS_SPARC_CC
        libbase=lib
        ;;

    x86_64-sun-solaris-cc)
        platform=SOLARIS_X86_64_CC
        libbase=lib64
        ;;

    sparc_64-sun-solaris-cc)
        platform=SOLARIS_SPARC_64_CC
        libbase=lib64
        ;;

    i386-apple-darwin-gnu)
        platform=DARWIN_IX86_GNU
        libbase=lib
        ;;

    *)
        echo "$0: unknown host: $host"
        exit 1
        ;;

esac

# --prefix:

if [ -z "$prefix" ]; then
  prefix=/usr/local
fi

# --bindir:

if [ -z "$bindir" ]; then
  bindir=$prefix/bin
fi

# --libdir:

if [ -z "$libdir" ]; then
  libdir=$prefix/$libbase
fi

# --includedir:

if [ -z "$includedir" ]; then
  includedir=$prefix/include
fi

# --datadir:

if [ -z "$datadir" ]; then
  datadir=$prefix/share
fi

# Set --with-schema

if [ -z "$with_schema" ]; then
  with_schema=$datadir/cimple/schema/cim214
fi

# with_pegasus_libdir

if [ -n "$with_pegasus" ]; then
  if [ -z "$with_pegasus_libdir" ]; then
    with_pegasus_libdir=$with_pegasus/$libbase
  fi
fi

# with_pegasus_includes

if [ -n "$with_pegasus" ]; then
  if [ -z "$with_pegasus_includes" ]; then
    with_pegasus_includes=$with_pegasus/include
  fi
fi

if [ -z "$cimplehome_envvar" ]; then
    cimplehome_envvar=CIMPLE_HOME
fi



##==============================================================================
##
## These options (if non-empty) must denote absolute directory names.
##
##==============================================================================

for i in \
  prefix \
  bindir \
  libdir \
  includedir \
  datadir \
  with_pegasus \
  with_pegasus_libdir \
  with_pegasus_includes \
  with_openwbem \
  with_cmpi \
  with_schema
do

  eval v=$`echo $i`

  case $v in
    /* | "") 
      ;;

    *)
      echo "$0: error: must be an absolute directory name: --$i=$v"
      exit 1;
      ;;
  esac

done

##==============================================================================
##
## Check locations:
##
##==============================================================================

if [ -n "$with_pegasus" ]; then

  if [ ! -d "$with_pegasus" ]; then
    echo "$0: no such directory: with_pegasus=$with_pegasus"
    exit 1
  fi

  if [ ! -d "$with_pegasus/bin" ]; then
    echo "$0: no such directory: with_pegasus/bin=$with_pegasus/bin"
    exit 1
  fi

  if [ ! -d "$with_pegasus_libdir" ]; then
    echo "$0: no such directory: with_pegasus_libdir=$with_pegasus_libdir"
    exit 1
  fi

  if [ ! -d "$with_pegasus_includes" ]; then
    echo "$0: no such directory: with_pegasus_includes=$with_pegasus_includes"
    exit 1
  fi

fi

if [ -n "$with_cmpi" ]; then

  if [ ! -d "$with_cmpi" ]; then
    echo "$0: no such directory: with_cmpi=$with_cmpi"
    exit 1
  fi

  if [ ! -f "$with_cmpi/cmpift.h" ]; then
    echo "$0: directory missing CMPI headers: with_cmpi=$with_cmpi"
    exit 1
  fi

  if [ ! -f "$with_cmpi/cmpidt.h" ]; then
    echo "$0: directory missing CMPI headers: with_cmpi=$with_cmpi"
    exit 1
  fi

  if [ ! -f "$with_cmpi/cmpimacs.h" ]; then
    echo "$0: directory missing CMPI headers: with_cmpi=$with_cmpi"
    exit 1
  fi

fi

if [ -n "$with_openwbem" ]; then

  if [ ! -d "$with_openwbem" ]; then
    echo "$0: no such directory: with_openwbem=$with_openwbem"
    exit 1
  fi

  if [ ! -d "$with_openwbem/bin" ]; then
    echo "$0: no such directory: with_openwbem/bin=$with_openwbem/bin"
    exit 1
  fi

  if [ ! -d "$with_openwbem/$libbase" ]; then
    echo "$0: no such directory: with_openwbem/$libbase=$with_openwbem/$libbase"
    exit 1
  fi

  if [ ! -d "$with_openwbem/include" ]; then
    echo "$0: no such directory: with_openwbem/include=$with_openwbem/include"
    exit 1
  fi

fi

##==============================================================================
##
## Create config.options
##
##==============================================================================

fn=config.options

if [ -f $fn ]; then
    echo backup $fn to $fn.bak
    mv -f $fn $fn.bak
fi

ScriptName=`basename $0`

echo "# This file was generated by configure." >> $fn
echo "# Input: ./$ScriptName $*" >> $fn

echo "HOST_OPT=$host" >> $fn
echo "PREFIX_OPT=$prefix" >> $fn
echo "BINDIR_OPT=$bindir" >> $fn
echo "LIBDIR_OPT=$libdir" >> $fn
echo "INCLUDEDIR_OPT=$includedir" >> $fn
echo "DATADIR_OPT=$datadir" >> $fn
echo "WITH_PEGASUS_OPT=$with_pegasus" >> $fn
echo "WITH_CMPI_OPT=$with_cmpi" >> $fn
echo "WITH_OPENWBEM_OPT=$with_openwbem" >> $fn
echo "WITH_SCHEMA_OPT=$with_schema" >> $fn

if [ ! -z "$enable_debug" ]; then
    if [ ! -z "$enable_debug_via_PEGASUS_DEBUG" ]; then
       echo "## ENABLE_DEBUG_OPT set because PEGASUS_DEBUG set" >> $fn
    fi
echo "ENABLE_DEBUG_OPT=$enable_debug" >> $fn
fi

echo "ENABLE_STATIC_OPT=$enable_static" >> $fn
echo "PLATFORM=$platform" >> $fn
echo "LIBBASE_OPT=$libbase" >> $fn
echo "WITH_PEGASUS_LIBDIR_OPT=$with_pegasus_libdir" >> $fn
echo "WITH_PEGASUS_INCLUDES_OPT=$with_pegasus_includes" >> $fn
echo "CIMPLEHOME_ENVVAR_OPT=$cimplehome_envvar" >> $fn

echo "ENABLE_EMBEDDED_INSTANCES_OPT=$enable_embedded_instances" >> $fn

if [ ! -z "$enable_scheduler" ]; then
    echo "ENABLE_SCHEDULER_OPT=$enable_scheduler" >> $fn
fi

if [ ! -z "$disable_log_macros" ]; then
    echo "DISABLE_LOG_MACROS_OPT=$disable_log_macros" >> $fn
fi

if [ ! -z "$enable_adapter_trace" ]; then
echo "ENABLE_ADAPTER_TRACE_OPT=$enable_adapter_trace" >>$fn
fi

if [ ! -z "$with_namespace" ]; then
    echo "WITH_NAMESPACE_OPT=$with_namespace" >> $fn
fi

echo "##End-Of-File" >> $fn

echo "Created $fn."
echo "Configured for $host."
echo

## remove the options file so it will be regenerated each time this
## script is run. Note: not necessary since the options Makefile
## operates off of make target.
rm -f src/cimple/options.h