#!/usr/bin/perl

# It is so hard getting the absolute path of the current script in bash
# so I converted CP back to perl. :)

use File::Basename ;
use Cwd ;
use Cwd 'abs_path';
use Pod::Usage ;
use Pod::Text ;

$trick_bin = dirname(abs_path($0)) ;
$trick_home = dirname($trick_bin) ;

### Set TRICK_VERBOSE_BUILD if VERBOSE is defined (synonyms) ###
if(defined $ENV{'VERBOSE'}) {
    $ENV{'TRICK_VERBOSE_BUILD'} = 1;
}

#### Handle arguments ####
$numArgs = $#ARGV + 1;
$makefileAddArgs = ' ';
$sdefine_dir = ".";
$sdefine = "S_define";
$makefile = "makefile";
foreach $argnum (0 .. $#ARGV) {
    $arg = $ARGV[$argnum];
    if ($arg =~ /(\w+)=(\w+)/ ) {
        $makefileAddArgs = $makefileAddArgs . $1 . "=" . $2 . " ";
    } elsif ($arg eq "-C" || $arg eq "--directory" ) {
        $sdefine_dir = abs_path($ARGV[$argnum + 1]);
        $makefileAddArgs = $makefileAddArgs . " -C $sdefine_dir ";
        $sdefine = $sdefine_dir . "/${sdefine}";
        $makefile = $sdefine_dir . "/${makefile}";
        shift
    } elsif ($arg =~ /-d/ ) {
        $makefileAddArgs = $makefileAddArgs . " debug ";
    } elsif ($arg =~ /-t/ ) {
        $makefileAddArgs = $makefileAddArgs . " test ";
    } elsif($arg=~ /-h/ ) {
        pod2usage(-sections => "NAME|SYNOPSIS|DESCRIPTION|OPTIONS|FILES", -verbose => 99) ;
    } else {
        $ENV{TRICK_CPFLAGS} .= " $arg" ;
    }
}

if ( -f $sdefine ) {
    if ( not -w $sdefine_dir ) {
        print $sdefine_dir , " is not writable\n" ;
        print "trick-CP aborted\n" ;
        exit 1 ;
    }
    unlink "build/Makefile_sim", $makefile ;
    $makefile_text = do { local $/; <main::DATA> } ;
    $makefile_text =~ s/SUB_TRICK_HOME/$trick_home/ ;
    $makefile_text =~ s/SUB_TRICK_BIN/$trick_bin/ ;
    open MAKEFILE, ">$makefile" ;
    print MAKEFILE $makefile_text ;
    close MAKEFILE ;
    system("make -f makefile " . $makefileAddArgs) ;
    exit $? >> 8;
} else {
    print "S_define does not exist" ;
    exit 1 ;
}

# trick-CP help message

=pod

=head1 NAME

trick-CP - Trick Configuration Processor

=head1 SYNOPSIS

trick-CP [OPTION]...

=head1 DESCRIPTION

trick-CP  is  the  Trick environment Configuration Processor.  trick-CP
parses the simulation definition file,  S_define,  searching  for  math
models to include in the simulation.  trick-CP will search for the math
models  within  the  search  paths   included   in   TRICK_CFLAGS   and
TRICK_CXXFLAGS  environment  variables.  trick-CP will generate code to
call math models listed in the S_define file and will generate a  make‐
file to build these math models.

=head1 OPTIONS

=over 8

=item B<-g> | B<--debug>

Print  the  S_define file as it is processed by trick-CP.  (This
may help the user find problems with his/her simulation configu‐
ration).

=item B<-h> | B<--help>

Print the trick-CP help message (this message)

=item B<-o> | B<--outfile> I<FILE_NAME>

Send CP output to FILE_NAME

=item B<-C> | B<--directory> I<SIM_DIRECTORY_NAME>

Build a simulation located in a different directory than the current
working directory.

=item B<-p> | B<--no-python>

Exclude python input processor from simulation.

=item B<-t>

Create a unit test simulation where TRICK_UNIT_TEST is defined during compilation

=item B<-v> | B<--verbose>

Set the verbose level. Valid entries are 0-3

=back

=head1 FILES

=over 8

=item B<build/S_source.cpp>

The simulation-specific executive source code file.

=item B<build/S_library_list>

The simulation-specific object code link list file.

=back

=cut

__END__
# CP found at SUB_TRICK_BIN

# Disable built-in implicit rules to increase build speed.
.SUFFIXES:

.PHONY: all

ifndef TRICK_HOME
    export TRICK_HOME := SUB_TRICK_HOME
endif

-include S_pre.mk

ifneq ($(wildcard ${TRICK_HOME}/share/trick/makefiles/Makefile.common),)
include ${TRICK_HOME}/share/trick/makefiles/Makefile.common

ifndef TRICK_VERBOSE_BUILD
    PRINT_CP            = $(info $(call COLOR,Running)    configuration_processor)
    PRINT_ICG           = $(info $(call COLOR,Running)    ICG)
    PRINT_MAKEFILE_SRC  = $(info $(call COLOR,Writing)    Makefile_src)
    PRINT_MAKEFILE_SWIG = $(info $(call COLOR,Writing)    Makefile_swig)
endif

all:
	$(info Trick Build Process Complete)

test: TRICK_SYSTEM_CFLAGS += -DTRICK_UNIT_TEST
test: TRICK_SYSTEM_CXXFLAGS += -DTRICK_UNIT_TEST
test: all

debug: TRICK_CPFLAGS += --debug
debug: all

build:
	@mkdir -p $@

$(TRICK_STATIC_LIB):
	$(info Cannot find $@. Please build Trick for this platform.)
	@exit -1

# CP creates S_source.hh required for ICG and SWIG processing
S_source.hh: S_define | build
	$(PRINT_CP)
	$(call ECHO_AND_LOG,${TRICK_HOME}/$(LIBEXEC)/trick/configuration_processor $(TRICK_CPFLAGS))

build/Makefile_S_define: S_source.hh
	$(PRINT_S_DEF_DEPS)
	$(call ECHO_AND_LOG,$(TRICK_CXX) $(TRICK_SFLAGS) $(TRICK_SYSTEM_SFLAGS) -MM -MT S_source.hh -MF build/Makefile_S_define -x c++ S_define)

# Automatic and manual ICG rules
ICG:
	$(PRINT_ICG)
	$(call ECHO_AND_LOG,${TRICK_HOME}/bin/trick-ICG -m ${TRICK_ICGFLAGS} ${TRICK_CXXFLAGS} ${TRICK_SYSTEM_CXXFLAGS} S_source.hh)


force_ICG:
	$(PRINT_ICG)
	$(call ECHO_AND_LOG,${TRICK_HOME}/bin/trick-ICG -force -m ${TRICK_ICGFLAGS} ${TRICK_CXXFLAGS} ${TRICK_SYSTEM_CXXFLAGS} S_source.hh)

# Create makefile for IO code
build/Makefile_io_src: S_source.hh | build
	$(PRINT_ICG)
	$(call ECHO_AND_LOG,${TRICK_HOME}/bin/trick-ICG -m ${TRICK_ICGFLAGS} ${TRICK_CXXFLAGS} ${TRICK_SYSTEM_CXXFLAGS} $<)

# Create makefile for source code
build/Makefile_src: build/Makefile_src_deps build/Makefile_io_src S_source.hh
	$(PRINT_MAKEFILE_SRC)
	$(call ECHO_AND_LOG,${TRICK_HOME}/$(LIBEXEC)/trick/make_makefile_src $? 2>&1)

build/Makefile_src_deps: ;

# Create makefile for SWIG code
build/Makefile_swig: S_source.hh build/Makefile_swig_deps
	$(PRINT_MAKEFILE_SWIG)
	$(call ECHO_AND_LOG,${TRICK_HOME}/$(LIBEXEC)/trick/make_makefile_swig)

build/Makefile_swig_deps: ;

# Forcibly (re)create all SWIG input (.i) files. This rule is never run by the normal
# build process.
.PHONY: convert_swig
convert_swig: build/S_library_swig
	$(call ECHO_AND_LOG,${TRICK_HOME}/$(LIBEXEC)/trick/convert_swig ${TRICK_CONVERT_SWIG_FLAGS})

# Force S_define_exp to be remade each time this rule runs
.PHONY: S_define_exp
S_define_exp:
	$(TRICK_CC) -E -C -xc++ ${TRICK_SFLAGS} $(TRICK_SYSTEM_SFLAGS) S_define > $@

# prints the value of a makefile variable, example invocation "make print-TRICK_CXXFLAGS"
# This rule is used by trick-config
print-%:
	@echo '$*=$($*)'

help:
	@echo -e "\
Simulation make options:\n\
    make [debug] [TRICK_VERBOSE_BUILD=1] [VERBOSE=1] - Makes everything: S_main and S_sie.resource\n\
    make sie                     - Builds the S_sie.resource file.\n\
    make clean                   - Removes all object files in simulation directory\n\
    make spotless                - Performs a clean\n\
    make apocalypse              - Performs a clean\n\
    make print-<variable>        - Prints a makefile or environment variable"

CLEAN_TARGETS = tidy clean spotless distclean apocalypse
ifeq ($(findstring ${MAKECMDGOALS},$(CLEAN_TARGETS)),)
include build/Makefile_S_define
include build/Makefile_src
include build/Makefile_src_deps
include build/Makefile_io_src
include build/Makefile_swig
include build/Makefile_swig_deps
-include build/Makefile_ICG
endif
-include build/Makefile_overrides
-include S_overrides.mk
-include S_post.mk

ifndef MAKE_RESTARTS
REMOVE_MAKE_OUT := $(shell rm -f $(MAKE_OUT))
ifeq ($(MAKECMDGOALS),)
    $(info $(call COLOR,Building with the following compilation flags:))
    $(info TRICK_CFLAGS   = $(TRICK_CFLAGS))
    $(info TRICK_CXXFLAGS = $(TRICK_CXXFLAGS))
endif
endif

else
all:
	$(error error with TRICK_HOME, cannot find ${TRICK_HOME}/share/trick/makefiles/Makefile.common)
endif

tidy:
	-rm -f S_source.hh S_sie.resource S_sie.json
	-rm -f S_main* T_main*
	-rm -f build/Makefile_*

clean: tidy
	-rm -f DP_Product/DP_rt_frame DP_Product/DP_rt_itimer
	-rm -f DP_Product/DP_rt_jobs DP_Product/DP_rt_timeline DP_Product/DP_mem_stats
	-rm -rf build trick
	-rm -f makefile

spotless: clean

distclean: clean

apocalypse: clean
	@echo "I love the smell of napalm in the morning"