#!/usr/bin/perl -w

# Need perl > 5.10 to use logic-defined or
use 5.006; use v5.10.1;
use Getopt::Long;
use Cwd;

# Return name of HIP compiler - either 'clang' or 'nvcc'
#
use Getopt::Long;
use File::Basename;

my $base_dir;
BEGIN {
    $base_dir = dirname( Cwd::realpath(__FILE__) );
}
use lib "$base_dir/";
use hipvars;

$HIP_RUNTIME    =   $hipvars::HIP_RUNTIME;
$HIP_PLATFORM   =   $hipvars::HIP_PLATFORM;
$HIP_COMPILER   =   $hipvars::HIP_COMPILER;
$HIP_CLANG_PATH =   $hipvars::HIP_CLANG_PATH;
$CUDA_PATH      =   $hipvars::CUDA_PATH;
$HIP_PATH       =   $hipvars::HIP_PATH;
$ROCM_PATH      =   $hipvars::ROCM_PATH;
$HIP_VERSION    =   $hipvars::HIP_VERSION;
$HSA_PATH       =   $hipvars::HSA_PATH;

Getopt::Long::Configure ( qw{bundling no_ignore_case});
GetOptions(
     "help|h" => \$p_help
    ,"path|p" => \$p_path
    ,"rocmpath|R" => \$p_rocmpath
    ,"compiler|c" => \$p_compiler
    ,"platform|P" => \$p_platform
    ,"runtime|r" => \$p_runtime
    ,"hipclangpath|l" => \$p_hipclangpath
    ,"cpp_config|cxx_config|C" => \$p_cpp_config
    ,"full|f|info" => \$p_full,
    ,"version|v" => \$p_version,
    ,"check" => \$p_check,
    ,"newline|n" => \$p_newline
);

if ($HIP_COMPILER eq "clang") {
    $HIP_CLANG_VERSION = `$HIP_CLANG_PATH/clang++ --version`;
    $HIP_CLANG_VERSION=~/.*clang version (\S+).*/;
    $HIP_CLANG_VERSION=$1;

    $CPP_CONFIG = " -D__HIP_PLATFORM_HCC__= -D__HIP_PLATFORM_AMD__= -I$HIP_PATH/include -I$HIP_CLANG_PATH/../lib/clang/$HIP_CLANG_VERSION -I$HSA_PATH/include";
}

if ($HIP_PLATFORM eq "nvidia") {
    $CPP_CONFIG = " -D__HIP_PLATFORM_NVCC__= -D__HIP_PLATFORM_NVIDIA__= -I$HIP_PATH/include -I$CUDA_PATH/include";
};

if ($p_help) {
    print "usage: hipconfig [OPTIONS]\n";
    print "  --path,  -p        : print HIP_PATH (use env var if set, else determine from hipconfig path)\n";
    print "  --rocmpath,  -R    : print ROCM_PATH (use env var if set, else determine from hip path or /opt/rocm)\n";
    print "  --cpp_config, -C   : print C++ compiler options\n";
    print "  --compiler, -c     : print compiler (clang or nvcc)\n";
    print "  --platform, -P     : print platform (amd or nvidia)\n";
    print "  --runtime, -r      : print runtime (rocclr or cuda)\n";
    print "  --hipclangpath, -l : print HIP_CLANG_PATH\n";
    print "  --full, -f         : print full config\n";
    print "  --version, -v      : print hip version\n";
    print "  --check            : check configuration\n";
    print "  --newline, -n      : print newline\n";
    print "  --help, -h         : print help message\n";
    exit();
}

if ($p_path) {
    print "$HIP_PATH";
    $printed = 1;
}

if ($p_rocmpath) {
    print "$ROCM_PATH";
    $printed = 1;
}

if ($p_cpp_config) {
    print $CPP_CONFIG;
    $printed = 1;
}

if ($p_compiler) {
    print $HIP_COMPILER;
    $printed = 1;
}

if ($p_platform) {
    print $HIP_PLATFORM;
    $printed = 1;
}

if ($p_runtime) {
    print $HIP_RUNTIME;
    $printed = 1;
}

if ($p_hipclangpath) {
    if (defined $HIP_CLANG_PATH) {
       print $HIP_CLANG_PATH;
    }
    $printed = 1;
}

if ($p_version) {
    print $HIP_VERSION;
    $printed = 1;
}

if (!$printed or $p_full) {
    print "HIP version  : ", $HIP_VERSION, "\n\n";
    print "== hipconfig\n";
    print "HIP_PATH     : ", $HIP_PATH, "\n";
    print "ROCM_PATH    : ", $ROCM_PATH, "\n";
    print "HIP_COMPILER : ", $HIP_COMPILER, "\n";
    print "HIP_PLATFORM : ", $HIP_PLATFORM, "\n";
    print "HIP_RUNTIME  : ", $HIP_RUNTIME, "\n";
    print "CPP_CONFIG   : ", $CPP_CONFIG, "\n";
    if ($HIP_PLATFORM eq "amd")
    {
        print "\n" ;
        if ($HIP_COMPILER eq "clang")
        {
            print "== hip-clang\n";
            print ("HSA_PATH         : $HSA_PATH\n");
            print ("HIP_CLANG_PATH   : $HIP_CLANG_PATH\n");
            system("$HIP_CLANG_PATH/clang++ --version");
            system("$HIP_CLANG_PATH/llc --version");
            print ("hip-clang-cxxflags : ");
            system("$HIP_PATH/bin/hipcc --cxxflags");
            printf("\n");
            print ("hip-clang-ldflags  : ");
            system("$HIP_PATH/bin/hipcc --ldflags");
            printf("\n");
        } else {
            print ("Unexpected HIP_COMPILER: $HIP_COMPILER\n");
        }
    }
    if ($HIP_PLATFORM eq "nvidia")  {
        print "\n" ;
        print "== nvcc\n";
        #print "CUDA_PATH   :", $CUDA_PATH";
        system("nvcc --version");

    }
    print "\n" ;

    print "=== Environment Variables\n";
    system("echo PATH=\$PATH");
    system("env | egrep '^HIP|^HSA|^CUDA|^LD_LIBRARY_PATH'");


    print "\n" ;
    print "== Linux Kernel\n";
    print "Hostname     : "; system ("hostname");
    system ("uname -a");

    if (-e "/usr/bin/lsb_release") {
        system ("/usr/bin/lsb_release -a");
    }

    print "\n" ;
    $printed = 1;
}


if ($p_check) {
    print "\nCheck system installation:\n";

    printf ("%-70s", "check hipconfig in PATH...");
    # Safer to use which hipconfig instead of invoking hipconfig
    if (system ("which hipconfig > /dev/null 2>&1") != 0)  {
        print "FAIL\n";
    } else {
        printf "good\n";
    }

    if ($HIP_PLATFORM eq "amd")  {
        $LD_LIBRARY_PATH=$ENV{'LD_LIBRARY_PATH'};
        printf("%-70s", "check LD_LIBRARY_PATH ($LD_LIBRARY_PATH) contains HSA_PATH ($HSA_PATH)...");
        if (index($LD_LIBRARY_PATH, $HSA_PATH) == -1) {
            print "FAIL\n";
        } else {
            printf "good\n";
        }

        # TODO - check hipcc / nvcc found and executable.
    }
}

if ($p_newline) {
    print "\n";
}