#! /usr/bin/env perl
use strict;

if ($#ARGV == -1) {
    die " ERROR cism.buildn_usernl: must specify a caseroot input argument";
}
my ($CASEROOT) = @ARGV;
my $sysmod;

my $SRCROOT   = `./xmlquery SRCROOT  -value`;
my $CASEBUILD = `./xmlquery CASEBUILD -value`;

#-------------------------------------------------------------------------------
# stage variable definition files and related scripts and templates to
# $CASEBUILD/cismIOconf, so users can modify easily modify IO fields
#-------------------------------------------------------------------------------

my $IOCONF_DIR = "$CASEBUILD/cismIOconf";
my $GLIMMER_CISM_ROOT = "$SRCROOT/components/cism/glimmer-cism";
if (! -d "$IOCONF_DIR") {
    $sysmod = "mkdir $IOCONF_DIR";
    system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";
}
$sysmod = "cp $SRCROOT/components/cism/bld/cismIO/README.cismIO        $IOCONF_DIR/";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

$sysmod = "cp $GLIMMER_CISM_ROOT/utils/build/generate_ncvars.py  $IOCONF_DIR/";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

$sysmod = "cp $GLIMMER_CISM_ROOT/libglimmer/ncdf_template.F90.in $IOCONF_DIR/";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

$sysmod = "cp $GLIMMER_CISM_ROOT/libglide/glide_vars.def         $IOCONF_DIR/";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

$sysmod = "cp $GLIMMER_CISM_ROOT/libglad/glad_vars.def         $IOCONF_DIR/";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

$sysmod = "cp $GLIMMER_CISM_ROOT/libglad/glad_mbal_vars.def    $IOCONF_DIR/";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

# NOTE(wjs, 2015-04-03) glint is no longer used by CESM. However, I'm keeping
# the glint stuff here for now so that we can keep the glint default i/o files
# up-to-date (since I use this mechanism to regenerate the default i/o files)

$sysmod = "cp $GLIMMER_CISM_ROOT/libglint/glint_vars.def         $IOCONF_DIR/";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

$sysmod = "cp $GLIMMER_CISM_ROOT/libglint/glint_mbal_vars.def    $IOCONF_DIR/";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

#-------------------------------------------------------------------------------
# create cism.buildIO.csh script to allow users to modify the IO fields
#-------------------------------------------------------------------------------

my $buildIO_script = "$IOCONF_DIR/cism.buildIO.csh";
open(file,">$buildIO_script") or die "Could not open file $buildIO_script to write";

my $output = <<END_OUTPUT;
#! /bin/csh -f

# -----------------------------------------------------------------------------
# NOTICE: This script was custom-generated for $CASEROOT.
#
#         DO NOT COPY to another case!
#
#         Use this script ONLY in $CASEROOT.
# -----------------------------------------------------------------------------

set sourcemod_dir  = $CASEROOT/SourceMods/src.cism/glimmer-cism
set cism_confIOdir = $IOCONF_DIR

END_OUTPUT

print file $output;
close(file);

$sysmod = "cat $SRCROOT/components/cism/bld/cismIO/cism.buildIO.template.csh >> $buildIO_script";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

$sysmod = "chmod u+x $buildIO_script";
system($sysmod) == 0 or die "ERROR cism.build_usernl: $sysmod failed: $?\n";

exit(0);