##############################################################################

# This is the top makefile for compiling OASIS3-MCT coupling library including
#   static and shared versions of mct/mpeu, scrip, psmile 
#   (i.e. interpolation and communication), and c-bindings 
# Platform dependent settings, compiler options, cpp keys, 
#   paths has to be set in an include file indicated in make.inc.
# Extra targets and paths are defined in the automatically included make.common

# for basic help: 
# gmake -f TopMakefileOasis3 help

########################################################################################

include make.inc
include make.common

########################################################################################

SHELL = /bin/sh
ifeq ($(MAKE),gmake)
MAKEf = $(MAKE) --no-print-directory -f TopMakefileOasis3
else
MAKEf = $(MAKE) -f TopMakefileOasis3
endif

# Defining path for FORTRAN and C sources
LIBSRC  = $(COUPLE)/lib

# Log and error files for compiling
LOGSTATIC = $(COUPLE)/util/make_dir/COMP.log
ERRSTATIC = $(COUPLE)/util/make_dir/COMP.err
# Log and error files for compiling the shared libraries
LOGSHARED = $(COUPLE)/util/make_dir/COMP-shared.log
ERRSHARED = $(COUPLE)/util/make_dir/COMP-shared.err
# Log and error files for installing PyOasis
LOGPYO = $(COUPLE)/util/make_dir/COMP-pyoasis.log
ERRPYO = $(COUPLE)/util/make_dir/COMP-pyoasis.err

########################################################################################
# For backwards compatibility

default: static-libs-fortran

oasis3_psmile: static-libs-fortran

oasis3-psmile: static-libs-fortran

makedirs: makedirs-static

makemct: makemct-static

makelibs: makescrip-static

makepsmile: makepsmile-static

cleanlibs: clean-static

########################################################################################

.DEFAULT:
	@echo " "
	@echo "make: *** No rule to make target \`$@\`.  Stop."
	@$(MAKEf) help

help:
	@echo " "
	@echo "TopMakefileOasis3 recommended targets:"
	@echo "  static-libs         = static oasis libraries including fortran and c-bindings"
	@echo "  shared-libs         = shared (dynamic) oasis libraries including fortran and c-bindings"
	@echo "  pyoasis             = builds and installs shared-libs plus higher and intermediate python classes"
	@echo "  realclean           = cleans and resets the build"
	@echo "TopMakefileOasis3 alternative targets:"
	@echo "  oasis3-psmile       = static-libs-fortran (for backwards compatibility)"
	@echo "  static-libs-fortran = static oasis libraries for fortran only"
	@echo "  shared-libs-fortran = shared (dynamic) oasis libraries for fortran only"
	@echo " "

########################################################################################

static-and-shared-libs-fortran: static-libs-fortran shared-libs-fortran

static-libs-fortran: check-vars
	@echo ""
	@echo "Compilation of the OASIS3-MCT static libraries"
	@echo "Build output to $(LOGSTATIC)"
	@echo "Build errors to $(ERRSTATIC)"
	@rm -f $(LOGSTATIC) $(ERRSTATIC)
	$(call check_defined, AR, static lib. archiver command)
	$(call check_defined, ARFLAGS, static lib. archiver options)
	@$(MAKEf) makedirs-static
	@$(MAKEf) makemct-static
	@$(MAKEf) makescrip-static
	@$(MAKEf) makepsmile-static
	@(echo "DONE" ; echo "")

shared-libs-fortran: check-vars
	@echo ""
	@echo "Compilation of the OASIS3-MCT shared libraries"
	@echo "Build output to $(LOGSHARED)"
	@echo "Build errors to $(ERRSHARED)"
	@rm -f $(LOGSHARED) $(ERRSHARED)
	$(call check_defined, DYNOPT LDDYNOPT, shared lib. compilation options)
	@$(MAKEf) makedirs-shared
	@$(MAKEf) makemct-shared
	@$(MAKEf) makescrip-shared
	@$(MAKEf) makepsmile-shared
	@(echo "DONE" ; echo "")

static-libs: static-libs-fortran
	@echo "Compilation of the OASIS3-MCT C bindings static libraries"
	@echo "Build output to $(LOGSTATIC)"
	@echo "Build errors to $(ERRSTATIC)"
	@$(MAKEf) makecbindings-static
	@(echo "DONE" ; echo "")

shared-libs: shared-libs-fortran
	@echo "Compilation of the OASIS3-MCT C bindings shared libraries"
	@echo "Build output to $(LOGSHARED)"
	@echo "Build errors to $(ERRSHARED)"
	@$(MAKEf) makecbindings-shared
	@(echo "DONE" ; echo "")

pyoasis: shared-libs
	@echo "Installation of PyOasis"
	@echo "Build output to $(LOGPYO)"
	@echo "Build errors to $(ERRPYO)"
	@rm -f $(LOGPYO) $(ERRPYO)
	$(call check_defined, MPIRUN, mpi launcher mnemonic helper)
	@$(MAKEf) makedirs-py
	@$(MAKEf) makepyoasis
	@(echo "DONE" ; echo "")

realclean: check-vars
	$(MAKEf) clean-static clean-shared clean-pyoasis

########################################################################################
# Rules for creating build and library directories

makedirs-static:
	@echo "=> Creating directories for compiling the static libraries"
	@echo "   in $(LIBBUILD)"
	@mkdir -p $(LIBBUILD)/scrip
	@mkdir -p $(LIBBUILD)/mctdir
	@mkdir -p $(LIBBUILD)/mct
	@mkdir -p $(LIBBUILD)/psmile.$(CHAN)
	@mkdir -p $(LIBBUILD)/cbindings
	@mkdir -p $(ARCHDIR)/include
	@mkdir -p $(ARCHDIR)/lib

makedirs-shared:
	@echo "=> Creating directories for compiling the shared libraries"
	@echo "   in $(LIBBUILDSHARED)"
	@mkdir -p $(LIBBUILDSHARED)/scrip
	@mkdir -p $(LIBBUILDSHARED)/mctdir
	@mkdir -p $(LIBBUILDSHARED)/mct
	@mkdir -p $(LIBBUILDSHARED)/psmile.$(CHAN)
	@mkdir -p $(LIBBUILDSHARED)/cbindings
	@mkdir -p $(ARCHDIR)/include
	@mkdir -p $(ARCHDIR)/lib

makedirs-py:
	@echo "=> Creating pyoasis installation path"
	@mkdir -p $(ARCHDIR)/python/pyoasis

########################################################################################
# Rules for cleaning

clean-static:
	@echo cleaning oasis3-mct static libraries
	rm -r -f $(LIBBUILD)/scrip
	rm -r -f $(LIBBUILD)/mct
	rm -r -f $(LIBBUILD)/mctdir
	rm -r -f $(LIBBUILD)/psmile.$(CHAN)
	rm -r -f $(ARCHDIR)/include
	rm -r -f $(LIBBUILD)/cbindings
	rm -f $(ARCHDIR)/lib/libscrip.a
	rm -f $(ARCHDIR)/lib/libmct.a
	rm -f $(ARCHDIR)/lib/libmpeu.a
	rm -f $(ARCHDIR)/lib/libpsmile.$(CHAN).a
	rm -f $(ARCHDIR)/lib/liboasis.cbind.a

clean-shared:
	@echo cleaning oasis3-mct shared libraries
	rm -r -f $(LIBBUILDSHARED)/scrip
	rm -r -f $(LIBBUILDSHARED)/mct
	rm -r -f $(LIBBUILDSHARED)/mctdir
	rm -r -f $(LIBBUILDSHARED)/psmile.$(CHAN)
	rm -r -f $(LIBBUILDSHARED)/cbindings
	rm -r -f $(ARCHDIR)/include
	rm -f $(ARCHDIR)/lib/libscrip.so
	rm -f $(ARCHDIR)/lib/libmct.so
	rm -f $(ARCHDIR)/lib/libmpeu.so
	rm -f $(ARCHDIR)/lib/libpsmile.$(CHAN).so
	rm -f $(ARCHDIR)/lib/liboasis.cbind.so

clean-pyoasis:
	@echo cleaning pyoasis
	rm -r -f $(ARCHDIR)/python

########################################################################################
# Rules for compiling mpeu/mct library

makemct-static:
	@echo "=> Configuring libraries mpeu and mct"
	@(cd $(LIBBUILD)/mctdir; cp -f -r -p $(LIBSRC)/mct/* .;\
         ./configure MPIFC="$(F90)" FC="$(F90)" CC="$(CC)" \
         1>> $(LOGSTATIC) 2>> $(ERRSTATIC) ;)
	@echo "=> Compiling libraries mpeu and mct"
	@(cd $(LIBBUILD)/mctdir; \
         $(MAKE) 1>> $(LOGSTATIC) 2>> $(ERRSTATIC) ;)
	@echo "=> Installing libraries mpeu and mct"
	@(cd $(LIBBUILD)/mctdir; \
         cp -f ./*/lib*.a   $(ARCHDIR)/lib/; \
         cp -f ./*/*.o    $(LIBBUILD)/mct/; \
         cp -f ./*/*.mod  $(LIBBUILD)/mct/; \
         cp -f ./*/*.mod  $(ARCHDIR)/include/;)

makemct-shared:
	@echo "=> Configuring shared libraries mpeu and mct"
	@(cd $(LIBBUILDSHARED)/mctdir; cp -f -r -p $(LIBSRC)/mct/* .;\
         ./configure MPIFC="$(F90) $(DYNOPT)" FC="$(F90) $(DYNOPT)" CC="$(CC) $(DYNOPT)" \
         1>> $(LOGSHARED) 2>> $(ERRSHARED) ;)
	@echo "=> Compiling shared libraries mpeu and mct"
	@(cd $(LIBBUILDSHARED)/mctdir; \
	 $(MAKE) 1>> $(LOGSHARED) 2>> $(ERRSHARED) ; )
	@echo "=> Creating shared library libmpeu.so"
	@(cd $(LIBBUILDSHARED)/mctdir ; \
	 $(F90) $(DYNOPT) $(LDFLAGS) $(LDDYNOPT) \
         -o $(ARCHDIR)/lib/libmpeu.so ./mpeu/*.o $(NETCDF_LIBRARY); )
	@echo "=> Creating shared library libmct.so"
	@(cd $(LIBBUILDSHARED)/mctdir ; \
	 $(F90) $(DYNOPT) $(LDFLAGS) $(LDDYNOPT) \
         -o $(ARCHDIR)/lib/libmct.so ./mct/*.o -L$(ARCHDIR)/lib -lmpeu $(NETCDF_LIBRARY); )
	@echo "=> Installing shared libraries mpeu and mct"
	@(cd $(LIBBUILDSHARED)/mctdir ; \
         cp -f ./*/*.o    $(LIBBUILDSHARED)/mct/; \
         cp -f ./*/*.mod  $(LIBBUILDSHARED)/mct/; \
         cp -f ./*/*.mod  $(ARCHDIR)/include/;)

########################################################################################
# Rules for compiling the libraries scrip

makescrip-static:
	@echo "=> Compiling library scrip"
	@(cd $(LIBBUILD)/scrip; cp -f $(LIBSRC)/scrip/src/Makefile .;\
         $(modifmakefile) ; $(MAKE) all 1>> $(LOGSTATIC) 2>> $(ERRSTATIC) )
	@echo "=> Installing scrip modules"
	@(cd $(LIBBUILD)/scrip ; \
         cp -f *.mod  $(ARCHDIR)/include/;)

makescrip-shared:
	@echo "=> Compiling shared library scrip"
	@(cd $(LIBBUILDSHARED)/scrip; cp -f $(LIBSRC)/scrip/src/Makefile .;\
         $(modifmakefile) ; $(MAKE) shared 1>> $(LOGSHARED) 2>> $(ERRSHARED) )
	@echo "=> Installing scrip modules"
	@(cd $(LIBBUILDSHARED)/scrip ; \
         cp -f *.mod  $(ARCHDIR)/include/;)

########################################################################################
# Rules for compiling the libraries psmile

makepsmile-static:
	@echo "=> Compiling library psmile"
	@(cd $(LIBBUILD)/psmile.$(CHAN) ; \
         cp -f $(LIBSRC)/psmile/src/Makefile . ; $(modifmakefile) ; \
         $(MAKE) all 1>> $(LOGSTATIC) 2>> $(ERRSTATIC) ; )
	@echo "=> Installing library psmile"
	@(cd $(LIBBUILD)/psmile.$(CHAN) ; \
	 cp -f *.mod $(ARCHDIR)/include ; )

makepsmile-shared:
	@echo "=> Compiling shared library psmile"
	@(cd $(LIBBUILDSHARED)/psmile.$(CHAN) ; \
         cp -f $(LIBSRC)/psmile/src/Makefile . ; $(modifmakefile) ; \
         $(MAKE) shared 1>> $(LOGSHARED) 2>> $(ERRSHARED) ; )
	@echo "=> Installing shared library psmile"
	@(cd $(LIBBUILDSHARED)/psmile.$(CHAN) ; \
	 cp -f *.mod $(ARCHDIR)/include ; )

########################################################################################
# Rules for compiling the oasis C bindings

makecbindings-static:
	@echo "=> Compiling the C bindings static"
	@(cd $(LIBBUILD)/cbindings ; \
	 cp -f -r -p $(LIBSRC)/cbindings/Makefile .; $(modifmakefile) ; \
         $(MAKE) libstatic 1>> $(LOGSTATIC) 2>> $(ERRSTATIC) )
	@echo "=> Installing cbindings modules"
	@(cd $(LIBBUILD)/cbindings ; \
         cp -f *.mod  $(ARCHDIR)/include/;)

makecbindings-shared:
	@echo "=> Compiling the C bindings shared"
	@(cd $(LIBBUILDSHARED)/cbindings ; \
	 cp -f -r -p $(LIBSRC)/cbindings/Makefile .; $(modifmakefile) ; \
         $(MAKE) libshared 1>> $(LOGSHARED) 2>> $(ERRSHARED) )
	@echo "=> Installing cbindings modules"
	@(cd $(LIBBUILDSHARED)/cbindings ; \
         cp -f *.mod  $(ARCHDIR)/include/;)

########################################################################################
# Rules for installing the PyOasis python modules

makepyoasis:
	@echo "=> Installing the PyOasis Modules"
	@(cp -f -r -p $(COUPLE)/pyoasis/src/* $(ARCHDIR)/python/pyoasis \
          1>> $(LOGPYO) 2>> $(ERRPYO) )
	@echo export PYOASIS_ROOT=${ARCHDIR} > ${ARCHDIR}/python/init.sh
	@echo setenv PYOASIS_ROOT ${ARCHDIR} > ${ARCHDIR}/python/init.csh
	@echo export LD_LIBRARY_PATH=\$${PYOASIS_ROOT}/lib:\$${LD_LIBRARY_PATH} >> ${ARCHDIR}/python/init.sh
	@echo setenv LD_LIBRARY_PATH \$${PYOASIS_ROOT}/lib:\$${LD_LIBRARY_PATH} >> ${ARCHDIR}/python/init.csh
	@echo export PYTHONPATH=\$${PYOASIS_ROOT}/python:\$${PYTHONPATH} >> ${ARCHDIR}/python/init.sh
	@echo setenv PYTHONPATH \$${PYOASIS_ROOT}/python:\$${PYTHONPATH} >> ${ARCHDIR}/python/init.csh
	@echo export MPIRUN4PY=\"${MPIRUN}\" >> ${ARCHDIR}/python/init.sh
	@echo setenv MPIRUN4PY \"${MPIRUN}\" >> ${ARCHDIR}/python/init.csh
	@echo
	@echo =====================================================================
	@echo The following lines have been put in the file
	@echo \"${ARCHDIR}/python/init.sh\"
	@echo
	@cat ${ARCHDIR}/python/init.sh
	@echo
	@echo The following lines have been put in the file
	@echo \"${ARCHDIR}/python/init.csh\"
	@echo
	@cat ${ARCHDIR}/python/init.csh
	@echo
	@echo Before using pyOASIS issue the command:
	@echo \"source ${ARCHDIR}/python/init.sh\"
	@echo    or
	@echo \"source ${ARCHDIR}/python/init.csh\"
	@echo Alternatively, these lines could be added to your \"\~/.bashrc\" or \"\~/.cshrc\" file. 
	@echo =====================================================================
	@echo

########################################################################################
# Rules for checks

check-vars:
	$(call check_defined, COUPLE, Root of the source directory)
	$(call check_defined, ARCHDIR, Root of the installation path)
	$(call check_defined, CHAN, MPI flavour MPI1/MPI2)
	$(call check_defined, MAKE, the make command make/gmake)
	$(call check_defined, F90 F f90 f CC, compiler command)
	$(call check_defined, F90FLAGS f90FLAGS FFLAGS fFLAGS CCFLAGS, \
	                      compilation options)

# Params:
#   1. Variable name(s) to test.
#   2. (optional) Error message to print.
check_defined = \
    $(strip $(foreach 1,$1, \
        $(call __check_defined,$1,$(strip $(value 2)))))
__check_defined = \
    $(if $(value $1),, \
      $(error Undefined $1$(if $2, ($2))))

########################################################################################
# Some rules to modify/add variables in makefiles

modifmakefile =	( echo 'include $(COUPLE)/util/make_dir/make.inc'  > infile;\
                  echo 'include $(COUPLE)/util/make_dir/make.common' >> infile;\
                  cat Makefile >> infile ; \
                  cp -f infile Makefile )

########################################################################################