# ---------------------------------------------------------------
# Programmer(s): Cody J. Balos @ LLNL
#                modified by Daniel M. Margolis @ SMU
# ---------------------------------------------------------------
# SUNDIALS Copyright Start
# Copyright (c) 2002-2025, Lawrence Livermore National Security
# and Southern Methodist University.
# All rights reserved.
#
# See the top-level LICENSE and NOTICE files for details.
#
# SPDX-License-Identifier: BSD-3-Clause
# SUNDIALS Copyright End
# ---------------------------------------------------------------
# CMakeLists.txt file for the FCVODE serial examples
# ---------------------------------------------------------------

# Example lists are tuples "name\;type" where the type is 'develop' for examples
# excluded from 'make test' in releases

# Examples using SUNDIALS linear solvers
set(FCVODE_examples "cv_advdiff_bnd_f2003\;develop")

if(SUNDIALS_INDEX_SIZE MATCHES "64")

  # Examples using SUNDIALS linear solvers
  list(
    APPEND
    FCVODE_examples
    "cv_analytic_fp_f2003\;develop"
    "cv_analytic_sys_dns_f2003\;develop"
    "cv_analytic_sys_dns_jac_f2003\;develop"
    "cv_brusselator_dns_f2003\;develop"
    "cv_diurnal_kry_f2003\;develop"
    "cv_diurnal_kry_bp_f2003\;develop"
    "cv_roberts_dns_constraints_f2003\;develop"
    "cv_roberts_dns_f2003\;develop")

  set(FCVODE_examples_LAPACK "cv_roberts_dnsL_f2003\;develop")

  # Examples using KLU linear solver
  set(FCVODE_examples_KLU "cv_analytic_sys_klu_f2003\;develop"
                          "cv_roberts_klu_f2003\;develop")

endif()

# Specify libraries to link against
set(CVODE_LIB sundials_cvode sundials_fcvode_mod)

if(SUNDIALS_BUILD_PACKAGE_FUSED_KERNELS)
  list(APPEND CVODE_LIB sundials_cvode_fused_stubs)
endif()

# Set-up linker flags and link libraries
set(SUNDIALS_LIBS ${CVODE_LIB})

# Add the build and install targets for each example
foreach(example_tuple ${FCVODE_examples})

  # parse the example tuple
  list(GET example_tuple 0 example)
  list(GET example_tuple 1 example_type)

  # Install fortran modules to a unique directory to avoid naming collisions
  set(CMAKE_Fortran_MODULE_DIRECTORY
      ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/${example}.dir)

  # example source files
  sundials_add_executable(${example} ${example}.f90)

  set_target_properties(${example} PROPERTIES FOLDER "Examples")

  # add example to regression tests
  sundials_add_test(
    ${example} ${example}
    ANSWER_DIR ${CMAKE_CURRENT_SOURCE_DIR}
    ANSWER_FILE ${example}.out
    EXAMPLE_TYPE ${example_type})

  # libraries to link against
  target_link_libraries(${example} ${SUNDIALS_LIBS} ${EXE_EXTRA_LINK_LIBS})

  # install example source and out files
  if(EXAMPLES_INSTALL)
    install(FILES ${example}.f90 ${example}.out
            DESTINATION ${EXAMPLES_INSTALL_PATH}/cvode/F2003_serial)
  endif()
endforeach(example_tuple ${FCVODE_examples})

# Add the build and install targets for each KLU example (if needed)
if(BUILD_SUNLINSOL_KLU)

  # Sundials KLU linear solver module
  set(SUNLINSOLKLU_LIBS sundials_fsunlinsolklu_mod)

  foreach(example_tuple ${FCVODE_examples_KLU})

    # parse the example tuple
    list(GET example_tuple 0 example)
    list(GET example_tuple 1 example_type)

    # Install fortran modules to a unique directory to avoid naming collisions
    set(CMAKE_Fortran_MODULE_DIRECTORY
        ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/${example}.dir)

    # example source files
    sundials_add_executable(${example} ${example}.f90)

    set_target_properties(${example} PROPERTIES FOLDER "Examples")

    # add example to regression tests
    sundials_add_test(
      ${example} ${example}
      ANSWER_DIR ${CMAKE_CURRENT_SOURCE_DIR}
      ANSWER_FILE ${example}.out
      EXAMPLE_TYPE ${example_type})

    # libraries to link against
    target_link_libraries(${example} ${SUNDIALS_LIBS} ${SUNLINSOLKLU_LIBS})

    # install example source and out files
    if(EXAMPLES_INSTALL)
      install(FILES ${example}.f90 ${example}.out
              DESTINATION ${EXAMPLES_INSTALL_PATH}/cvode/F2003_serial)
    endif()

  endforeach(example_tuple ${FCVODE_examples_KLU})

endif()

# Add the build and install targets for each LAPACK example (if needed)
if(BUILD_SUNLINSOL_LAPACKBAND AND BUILD_SUNLINSOL_LAPACKDENSE)

  # Sundials LAPACK linear solver modules
  set(SUNLINSOLLAPACK_LIBS sundials_sunlinsollapackdense
                           sundials_fsunlinsollapackdense_mod)

  foreach(example_tuple ${FCVODE_examples_LAPACK})

    # parse the example tuple
    list(GET example_tuple 0 example)
    list(GET example_tuple 1 example_type)

    # example source files
    sundials_add_executable(${example} ${example}.f90)

    set_target_properties(${example} PROPERTIES FOLDER "Examples")

    # add example to regression tests
    sundials_add_test(
      ${example} ${example}
      ANSWER_DIR ${CMAKE_CURRENT_SOURCE_DIR}
      ANSWER_FILE ${example}.out
      EXAMPLE_TYPE ${example_type})

    # libraries to link against
    target_link_libraries(${example} ${SUNDIALS_LIBS} ${SUNLINSOLLAPACK_LIBS})

    # install example source and out files
    if(EXAMPLES_INSTALL)
      install(FILES ${example}.f90 ${example}.out
              DESTINATION ${EXAMPLES_INSTALL_PATH}/cvode/F2003_serial)
    endif()

  endforeach(example_tuple ${FCVODE_examples_LAPACK})

endif()

# create Makefile and CMakeLists.txt for examples
if(EXAMPLES_INSTALL)

  # Prepare substitution variables for Makefile and/or CMakeLists templates
  set(SOLVER "CVODE")
  set(SOLVER_LIB "sundials_cvode")
  set(SOLVER_FLIB "sundials_fcvode_mod")
  set(NVEC_LIB "sundials_nvecserial")
  set(NVEC_FLIB "sundials_fnvecserial_mod")
  if(SUNDIALS_BUILD_PACKAGE_FUSED_KERNELS)
    set(LIBS "-lsundials_cvode_fused_stubs ${LIBS}")
  endif()

  examples2string(FCVODE_examples EXAMPLES)

  if(BUILD_SUNLINSOL_KLU)
    examples2string(FCVODE_examples_KLU EXAMPLES_KLU)
    set(SUNLS_LIB "sundials_sunlinsolklu")
    set(SUNLS_FLIB "sundials_fsunlinsolklu_mod")
  else()
    set(EXAMPLES_KLU "")
  endif()

  # Regardless of the platform we're on, we will generate and install
  # CMakeLists.txt file for building the examples. This file  can then be used
  # as a template for the user's own programs.

  # generate CMakelists.txt in the binary directory
  configure_file(
    ${PROJECT_SOURCE_DIR}/examples/templates/cmakelists_serial_F2003_ex.in
    ${PROJECT_BINARY_DIR}/examples/cvode/F2003_serial/CMakeLists.txt @ONLY)

  # install CMakelists.txt
  install(FILES ${PROJECT_BINARY_DIR}/examples/cvode/F2003_serial/CMakeLists.txt
          DESTINATION ${EXAMPLES_INSTALL_PATH}/cvode/F2003_serial)

  # On UNIX-type platforms, we also  generate and install a makefile for
  # building the examples. This makefile can then be used as a template for the
  # user's own programs.

  if(UNIX)
    # generate Makefile and place it in the binary dir
    configure_file(
      ${PROJECT_SOURCE_DIR}/examples/templates/makefile_serial_F2003_ex.in
      ${PROJECT_BINARY_DIR}/examples/cvode/F2003_serial/Makefile_ex @ONLY)
    # install the configured Makefile_ex as Makefile
    install(
      FILES ${PROJECT_BINARY_DIR}/examples/cvode/F2003_serial/Makefile_ex
      DESTINATION ${EXAMPLES_INSTALL_PATH}/cvode/F2003_serial
      RENAME Makefile)
  endif()

  # add test_install target
  sundials_add_test_install(cvode F2003_serial)

endif()