# Configure script for Digital Bazaar Bitmunk product line
# Usage: Run ./configure once 
# Author: Manu Sporny

AC_PREREQ([2.60])
AC_INIT([forge],[0.1.0],[support@digitalbazaar.com])
AC_CONFIG_AUX_DIR(setup)

# Setup standard build environment variables
# FIXME: allow changing via configure option
FORGE_DIR=`(cd ${srcdir} && pwd)`
AC_SUBST(FORGE_DIR)
DATE_YMD=`date +%Y%m%d`
PACKAGE_DATE_VERSION=${PACKAGE_VERSION}-${DATE_YMD}
AC_SUBST(DATE_RFC_2822)
AC_SUBST(PACKAGE_DATE_VERSION)

dnl ----------------- docs -----------------

AC_ARG_ENABLE([docs],
   AS_HELP_STRING([--enable-docs], [build documentation [no]]),
   [ 
      case "${enableval}" in
         yes) BUILD_DOCS=yes ;;
         no) BUILD_DOCS=no ;;
         *) AC_MSG_ERROR(bad value ${enableval} for --enable-docs) ;;
      esac
   ], [BUILD_DOCS=no]) dnl Default value

AC_SUBST(BUILD_DOCS)

dnl ----------------- tests -----------------

AC_ARG_ENABLE([tests],
   AC_HELP_STRING([--disable-tests], [disable building test apps [no]]),
   [
   case "${enableval}" in
      yes) BUILD_TESTS=yes ;;
      no)  BUILD_TESTS=no ;;
      *)   AC_MSG_ERROR(bad value ${enableval} for --disable-tests) ;;
   esac
   ], [BUILD_TESTS=no]) dnl Default value

AC_SUBST(BUILD_TESTS)

dnl ----------------- build flash -----------------

AC_ARG_ENABLE([flash],
   AC_HELP_STRING([--disable-flash], [disable building Flash [no]]),
   [
   case "${enableval}" in
      yes) BUILD_FLASH=yes ;;
      no)  BUILD_FLASH=no ;;
      *)   AC_MSG_ERROR(bad value ${enableval} for --disable-flash) ;;
   esac
   ], [BUILD_FLASH=yes]) dnl Default value

AC_ARG_ENABLE([pre-built-flash],
   AC_HELP_STRING([--disable-pre-built-flash],
      [disable use of pre-built Flash [no]]),
   [
   case "${enableval}" in
      yes) USE_PRE_BUILT_FLASH=yes ;;
      no)  USE_PRE_BUILT_FLASH=no ;;
      *)   AC_MSG_ERROR(bad value ${enableval} for --disable-flash) ;;
   esac
   ], [USE_PRE_BUILT_FLASH=yes]) dnl Default value

AC_SUBST(BUILD_FLASH)
AC_SUBST(USE_PRE_BUILT_FLASH)

dnl ----------------- mxmlc -----------------

AC_ARG_WITH([mxmlc],
   AC_HELP_STRING([--with-mxmlc=PATH],
      [use PATH for mxmlc]),
   [
      case "${withval}" in
         yes|no) AC_MSG_ERROR(bad value ${withval} for --with-mxmlc) ;;
         *)      MXMLC="${withval}" ;;
      esac
      if test "x$MXMLC" = x -o ! -x "$MXMLC"; then
         AC_MSG_ERROR([mxmlc not found at "$MXMLC"])
      fi
   ])

if test "$BUILD_FLASH" = "yes" ; then
   dnl Need to try to find mxmlc
   if test "x$MXMLC" = x; then
      AC_CHECK_PROGS(MXMLC, mxmlc /usr/lib/flex3/bin/mxmlc,, $PATH /)
   fi
   dnl Check that mxmlc was found
   if test "x$MXMLC" = x; then
      if test "$USE_PRE_BUILT_FLASH" = "yes"; then
         dnl Check pre-built SWF is present
         if test -r "$FORGE_DIR/swf/SocketPool.swf"; then
            AC_MSG_NOTICE([Using pre-built Flash])
            BUILD_FLASH=no
         else
            AC_MSG_ERROR([mxmlc and pre-built Flash not found])
         fi
      else
         AC_MSG_ERROR([mxmlc not found, try --with-mxmlc])
      fi
   fi
fi

AC_SUBST(MXMLC)

dnl ----------------- mxmlc debug -----------------

AC_ARG_ENABLE([mxmlc-debug],
   AC_HELP_STRING([--enable-mxmlc-debug], [enable mxmlc debug mode [no]]),
   [
   case "${enableval}" in
      yes) MXMLC_DEBUG_MODE=yes ;;
      no)  MXMLC_DEBUG_MODE=no ;;
      *)   AC_MSG_ERROR(bad value ${enableval} for --enable-mxmlc-debug) ;;
   esac
   ], [MXMLC_DEBUG_MODE=no]) dnl Default value

AC_SUBST(MXMLC_DEBUG_MODE)

dnl ----------------- end of options -----------------

echo -e "\n--------- Configuring Build Environment -----------"

PKG_PROG_PKG_CONFIG

# Checking for standard build tools
AC_PROG_CPP
AC_PROG_INSTALL
AS_PATH_PYTHON([2.7])

if test "x$PYTHON" != x; then
   save_CPPFLAGS="$CPPFLAGS"
   AC_CHECK_PROGS([PYTHON_CONFIG], [python-config]) 
   if test "x$PYTHON_CONFIG" != x; then
      CPPFLAGS="$CPPFLAGS `$PYTHON_CONFIG --cflags`"
   fi
   AC_CHECK_HEADERS([Python.h],
      [BUILD_PYTHON_MODULES=yes],
      [BUILD_PYTHON_MODULES=no
      AC_MSG_WARN([Python.h not found, SSL bindings will not be build.])])
   CPPFLAGS="$save_CPPFLAGS"
else
   AC_MSG_WARN([Need at least Python 2.7 to build SSL bindings.])
fi

AC_SUBST(BUILD_PYTHON_MODULES)

dnl ----------------------------------

dnl NOTE:
dnl This code was used previously to autogenerate the .gitignore file but due
dnl to the current more common use of just the js files, it's likely people
dnl who checkout the code will never run the build scripts. The files are now
dnl just hardcoded into .gitignore and should be updated by hand as needed.
dnl
dnl # Generating files
dnl AC_CONFIG_FILES([
dnl    .gitignore
dnl    Makefile
dnl ])
dnl
dnl # add newlines to internal output file list
dnl CONFIGURE_GENERATED_FILES="`echo $ac_config_files | tr ' ' '\n'`"
dnl AC_SUBST(CONFIGURE_GENERATED_FILES)

AC_OUTPUT

# Dump the build configuration

echo -e "\n--------- Forge Build Environment -----------"
echo "Forge Version     : $PACKAGE_NAME $PACKAGE_DATE_VERSION"

if test "x$BUILD_FLASH" = "xyes" ; then
   echo "Adobe Flash       : Flash building enabled"
   echo "MXMLC             : $MXMLC"
   echo "MXMLC Debug flags : $MXMLC_DEBUG_MODE"
else
   echo "Adobe Flash       : using pre-built Flash"
fi

if test "x$BUILD_PYTHON_MODULES" = "xyes" ; then
   echo "Python            : $PYTHON (version $PYTHON_VERSION)"
else
   echo "Python            : development environment not found"
fi

if test "x$BUILD_DOCS" = "xyes"; then
   echo "Documentation     : enabled"
else
   echo "Documentation     : disabled (use --enable-docs to enable)"
fi

if test "x$BUILD_TESTS" = "xyes"; then
   echo "Tests             : enabled"
else
   echo "Tests             : disabled (use --enable-tests to enable)"
fi