#
# Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#

AC_DEFUN_ONCE([HELP_SETUP_DEPENDENCY_HELP],
[
    AC_CHECK_PROGS(PKGHANDLER, apt-get yum port pkgutil pkgadd)
])

AC_DEFUN([HELP_MSG_MISSING_DEPENDENCY],
[
    # Print a helpful message on how to acquire the necessary build dependency.
    # $1 is the help tag: freetyp2, cups, pulse, alsa etc
    MISSING_DEPENDENCY=$1
    PKGHANDLER_COMMAND=

    case $PKGHANDLER in
	apt-get)
                apt_help     $MISSING_DEPENDENCY ;;
    yum)
                yum_help     $MISSING_DEPENDENCY ;;
	port)
                port_help    $MISSING_DEPENDENCY ;;
	pkgutil)
                pkgutil_help $MISSING_DEPENDENCY ;;
	pkgadd)
                pkgadd_help  $MISSING_DEPENDENCY ;;
    * )
      break ;;
    esac

    if test "x$PKGHANDLER_COMMAND" != x; then
        HELP_MSG="You might be able to fix this by running '$PKGHANDLER_COMMAND'."
    fi
])

cygwin_help() {
    case $1 in
    unzip)
        PKGHANDLER_COMMAND="cd <location of cygwin setup.exe> && cmd /c setup -q -P unzip" ;;
    zip)
        PKGHANDLER_COMMAND="cd <location of cygwin setup.exe> && cmd /c setup -q -P zip" ;;
    make)
        PKGHANDLER_COMMAND="cd <location of cygwin setup.exe> && cmd /c setup -q -P make" ;;
    * )
       break ;;
    esac
}

apt_help() {
    case $1 in
    devkit)
        PKGHANDLER_COMMAND="sudo apt-get install build-essential" ;;
    openjdk)
        PKGHANDLER_COMMAND="sudo apt-get install openjdk-7-jdk" ;;
    alsa)
        PKGHANDLER_COMMAND="sudo apt-get install libasound2-dev" ;;
    cups)
        PKGHANDLER_COMMAND="sudo apt-get install libcups2-dev" ;;
    freetype2)
        PKGHANDLER_COMMAND="sudo apt-get install libfreetype6-dev" ;;
    pulse)
        PKGHANDLER_COMMAND="sudo apt-get install libpulse-dev" ;;
    x11)
        PKGHANDLER_COMMAND="sudo apt-get install libX11-dev libxext-dev libxrender-dev libxtst-dev" ;;
    ccache)
        PKGHANDLER_COMMAND="sudo apt-get install ccache" ;;
    * )
       break ;;
    esac
}

yum_help() {
    case $1 in
    devkit)
        PKGHANDLER_COMMAND="sudo yum groupinstall \"Development Tools\"" ;;
    openjdk)
        PKGHANDLER_COMMAND="sudo yum install java-1.7.0-openjdk" ;;
    alsa)
        PKGHANDLER_COMMAND="sudo yum install alsa-lib-devel" ;;
    cups)
        PKGHANDLER_COMMAND="sudo yum install cups-devel" ;;
    freetype2)
        PKGHANDLER_COMMAND="sudo yum install freetype2-devel" ;;
    pulse)
        PKGHANDLER_COMMAND="sudo yum install pulseaudio-libs-devel" ;;
    x11)
        PKGHANDLER_COMMAND="sudo yum install libXtst-devel" ;;
    ccache)
        PKGHANDLER_COMMAND="sudo yum install ccache" ;;
    * )
       break ;;
    esac
}

port_help() {
    PKGHANDLER_COMMAND=""
}

pkgutil_help() {
    PKGHANDLER_COMMAND=""
}

pkgadd_help() {
    PKGHANDLER_COMMAND=""
}

AC_DEFUN_ONCE([HELP_PRINT_SUMMARY_AND_WARNINGS],
[
# Finally output some useful information to the user

if test "x$CCACHE" != x; then
  CCACHE_STATUS="installed and in use"
else
  if test "x$GCC" = xyes; then
    CCACHE_STATUS="not installed (consider installing)"
    CCACHE_HELP_MSG="You do not have ccache installed. Try installing it."
  else
    CCACHE_STATUS="not available for your system"
  fi
fi

printf "\n"
printf "====================================================\n"
printf "A new configuration has been successfully created in\n"
printf "$OUTPUT_ROOT\n"
if test "x$CONFIGURE_COMMAND_LINE" != x; then
	printf "using configure arguments '$CONFIGURE_COMMAND_LINE'.\n"
else
	printf "using default settings.\n"
fi

printf "\n"
printf "Configuration summary:\n"
printf "* Debug level:    $DEBUG_LEVEL\n"
printf "* JDK variant:    $JDK_VARIANT\n"
printf "* JVM variants:   $with_jvm_variants\n"
printf "* OpenJDK target: OS: $OPENJDK_TARGET_OS, CPU architecture: $OPENJDK_TARGET_CPU_ARCH, address length: $OPENJDK_TARGET_CPU_BITS\n"

printf "\n"
printf "Tools summary:\n"
if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
  printf "* Environment:    $WINDOWS_ENV_VENDOR version $WINDOWS_ENV_VERSION (root at $WINDOWS_ENV_ROOT_PATH)\n"
fi
printf "* Boot JDK:       $BOOT_JDK_VERSION (at $BOOT_JDK)\n"
printf "* C Compiler:     $CC_VENDOR version $CC_VERSION (at $CC)\n"
printf "* C++ Compiler:   $CXX_VENDOR version $CXX_VERSION (at $CXX)\n"

printf "\n"
printf "Build performance summary:\n"
printf "* Cores to use:   $JOBS\n"
printf "* Memory limit:   $MEMORY_SIZE MB\n"
printf "* ccache status:  $CCACHE_STATUS\n"
printf "\n"

if test "x$CCACHE_HELP_MSG" != x && test "x$HIDE_PERFORMANCE_HINTS" = "xno"; then
	printf "Build performance tip: ccache gives a tremendous speedup for C++ recompilations.\n"
	printf "$CCACHE_HELP_MSG\n"
	HELP_MSG_MISSING_DEPENDENCY([ccache])
	printf "$HELP_MSG\n"
	printf "\n"
fi

if test "x$BUILDING_MULTIPLE_JVM_VARIANTS" = "xyes"; then
	printf "NOTE: You have requested to build more than one version of the JVM, which\n"
	printf "will result in longer build times.\n"
	printf "\n"
fi

if test "x$FOUND_ALT_VARIABLES" != "x"; then
	printf "WARNING: You have old-style ALT_ environment variables set.\n"
	printf "These are not respected, and will be ignored. It is recommended\n"
	printf "that you clean your environment. The following variables are set:\n"
	printf "$FOUND_ALT_VARIABLES\n"
	printf "\n"
fi

if test "x$OUTPUT_DIR_IS_LOCAL" != "xyes"; then
	printf "WARNING: Your build output directory is not on a local disk.\n"
	printf "This will severely degrade build performance!\n"
	printf "It is recommended that you create an output directory on a local disk,\n"
	printf "and run the configure script again from that directory.\n"
	printf "\n"
fi

if test "x$IS_RECONFIGURE" = "xyes"; then
	printf "WARNING: The result of this configuration has overridden an older\n"
	printf "configuration. You *should* run 'make clean' to make sure you get a\n"
	printf "proper build. Failure to do so might result in strange build problems.\n"
	printf "\n"
fi
])