# Set lib core link dependencies
set(libraries_to_link)

set(gsl_test_sources)
if(${GSL_FOUND})
  set(gsl_test_sources
      test/rng-test-suite.cc
      test/random-variable-stream-test-suite.cc
  )
endif()

# Check for dependencies and add sources accordingly
if(${CMAKE_VERSION}
   VERSION_LESS
   "3.11.0"
)
  check_include_file_cxx(
    boost/units/quantity.hpp
    HAVE_BOOST_UNITS_QUANTITY
  )
  check_include_file_cxx(
    boost/units/systems/si.hpp
    HAVE_BOOST_UNITS_SI
  )
  if(${HAVE_BOOST_UNITS_QUANTITY}
     AND ${HAVE_BOOST_UNITS_SI}
  )
    set(HAVE_BOOST_UNITS
        TRUE
    )
  else()
    set(HAVE_BOOST_UNITS
        FALSE
    )
  endif()
else()
  # Fast path for CMake >= 3.11
  check_include_files(
    "boost/units/quantity.hpp;boost/units/systems/si.hpp"
    HAVE_BOOST_UNITS
    LANGUAGE
    CXX
  )
endif()

if(${HAVE_BOOST_UNITS})
  add_definitions(
    -DHAVE_BOOST
    -DHAVE_BOOST_UNITS
  )
  message(STATUS "Boost Units have been found.")
else()
  message(
    STATUS
      "Boost Units are an optional feature of length.cc."
      " Ubuntu ships it within the libboost-dev package."
      " You may need to clean up the CMake cache after installing it to pass this check."
  )
endif()

set(rt_sources)
set(rt_headers)
if(${ENABLE_REALTIME})
  set(rt_sources
      model/realtime-simulator-impl.cc
      model/wall-clock-synchronizer.cc
  )
  set(rt_headers
      model/realtime-simulator-impl.h
      model/wall-clock-synchronizer.h
  )
endif()

set(osclock_sources
    model/unix-system-wall-clock-ms.cc
)

set(int64x64_sources)
set(int64x64_headers)

if(${NS3_INT64X64}
   MATCHES
   "INT128"
)
  set(int64x64_sources
      model/int64x64-128.cc
  )
  set(int64x64_headers
      model/int64x64-128.h
  )
elseif(
  ${NS3_INT64X64}
  MATCHES
  "DOUBLE"
)
  set(int64x64_headers
      model/int64x64-double.h
  )
elseif(
  ${NS3_INT64X64}
  MATCHES
  "CAIRO"
)
  set(int64x64_sources
      model/int64x64-cairo.cc
  )
  set(int64x64_headers
      model/int64x64-cairo.h
      model/cairo-wideint-private.h
  )
endif()

if(${ENABLE_EXAMPLES})
  set(example_as_test_sources
      model/example-as-test.cc
  )
  set(example_as_test_headers
      model/example-as-test.h
  )
  set(example_as_test_suite
      test/examples-as-tests-test-suite.cc
  )
endif()

# Embedded version support
set(embedded_version_sources)
set(embedded_version_headers)
if(${ENABLE_BUILD_VERSION})
  set(embedded_version_sources
      model/version.cc
  )
  set(embedded_version_headers
      model/version.h
  )
endif()

# Define core lib sources
set(source_files
    ${rt_sources}
    ${osclock_sources}
    ${int64x64_sources}
    ${example_as_test_sources}
    ${embedded_version_sources}
    helper/csv-reader.cc
    helper/random-variable-stream-helper.cc
    helper/event-garbage-collector.cc
    model/time.cc
    model/event-id.cc
    model/scheduler.cc
    model/list-scheduler.cc
    model/map-scheduler.cc
    model/heap-scheduler.cc
    model/calendar-scheduler.cc
    model/priority-queue-scheduler.cc
    model/event-impl.cc
    model/simulator.cc
    model/simulator-impl.cc
    model/default-simulator-impl.cc
    model/timer.cc
    model/watchdog.cc
    model/synchronizer.cc
    model/make-event.cc
    model/log.cc
    model/breakpoint.cc
    model/type-id.cc
    model/attribute-construction-list.cc
    model/object-base.cc
    model/ref-count-base.cc
    model/object.cc
    model/test.cc
    model/random-variable-stream.cc
    model/rng-seed-manager.cc
    model/rng-stream.cc
    model/command-line.cc
    model/attribute.cc
    model/boolean.cc
    model/integer.cc
    model/uinteger.cc
    model/enum.cc
    model/double.cc
    model/int64x64.cc
    model/string.cc
    model/pointer.cc
    model/object-ptr-container.cc
    model/object-factory.cc
    model/global-value.cc
    model/trace-source-accessor.cc
    model/config.cc
    model/callback.cc
    model/names.cc
    model/vector.cc
    model/fatal-impl.cc
    model/system-path.cc
    model/hash-function.cc
    model/hash-murmur3.cc
    model/hash-fnv.cc
    model/hash.cc
    model/des-metrics.cc
    model/ascii-file.cc
    model/node-printer.cc
    model/show-progress.cc
    model/time-printer.cc
    model/system-wall-clock-timestamp.cc
    model/length.cc
    model/trickle-timer.cc
    model/unix-fd-reader.cc
)

# Define core lib headers
set(header_files
    ${rt_headers}
    ${int64x64_headers}
    ${example_as_test_headers}
    ${embedded_version_headers}
    helper/csv-reader.h
    helper/event-garbage-collector.h
    helper/random-variable-stream-helper.h
    model/abort.h
    model/ascii-file.h
    model/ascii-test.h
    model/assert.h
    model/attribute-accessor-helper.h
    model/attribute-construction-list.h
    model/attribute-container-accessor-helper.h
    model/attribute-container.h
    model/attribute-helper.h
    model/attribute.h
    model/boolean.h
    model/breakpoint.h
    model/build-profile.h
    model/calendar-scheduler.h
    model/callback.h
    model/command-line.h
    model/config.h
    model/default-deleter.h
    model/default-simulator-impl.h
    model/deprecated.h
    model/des-metrics.h
    model/double.h
    model/empty.h
    model/enum.h
    model/event-id.h
    model/event-impl.h
    model/fatal-error.h
    model/fatal-impl.h
    model/global-value.h
    model/hash-fnv.h
    model/hash-function.h
    model/hash-murmur3.h
    model/hash.h
    model/heap-scheduler.h
    model/int-to-type.h
    model/int64x64-double.h
    model/int64x64.h
    model/integer.h
    model/length.h
    model/list-scheduler.h
    model/log-macros-disabled.h
    model/log-macros-enabled.h
    model/log.h
    model/make-event.h
    model/map-scheduler.h
    model/math.h
    model/names.h
    model/node-printer.h
    model/nstime.h
    model/object-base.h
    model/object-factory.h
    model/object-map.h
    model/object-ptr-container.h
    model/object-vector.h
    model/object.h
    model/pair.h
    model/pointer.h
    model/priority-queue-scheduler.h
    model/ptr.h
    model/random-variable-stream.h
    model/ref-count-base.h
    model/rng-seed-manager.h
    model/rng-stream.h
    model/scheduler.h
    model/show-progress.h
    model/simple-ref-count.h
    model/simulation-singleton.h
    model/simulator-impl.h
    model/simulator.h
    model/singleton.h
    model/string.h
    model/synchronizer.h
    model/system-path.h
    model/system-wall-clock-ms.h
    model/system-wall-clock-timestamp.h
    model/test.h
    model/time-printer.h
    model/timer-impl.h
    model/timer.h
    model/trace-source-accessor.h
    model/traced-callback.h
    model/traced-value.h
    model/trickle-timer.h
    model/tuple.h
    model/type-id.h
    model/type-name.h
    model/type-traits.h
    model/uinteger.h
    model/unix-fd-reader.h
    model/unused.h
    model/valgrind.h
    model/vector.h
    model/watchdog.h
)

set(test_sources
    ${example_as_test_suite}
    ${gsl_test_sources}
    test/attribute-container-test-suite.cc
    test/attribute-test-suite.cc
    test/build-profile-test-suite.cc
    test/callback-test-suite.cc
    test/command-line-test-suite.cc
    test/config-test-suite.cc
    test/event-garbage-collector-test-suite.cc
    test/global-value-test-suite.cc
    test/hash-test-suite.cc
    test/int64x64-test-suite.cc
    test/length-test-suite.cc
    test/many-uniform-random-variables-one-get-value-call-test-suite.cc
    test/names-test-suite.cc
    test/object-test-suite.cc
    test/one-uniform-random-variable-many-get-value-calls-test-suite.cc
    test/pair-value-test-suite.cc
    test/ptr-test-suite.cc
    test/sample-test-suite.cc
    test/simulator-test-suite.cc
    test/threaded-test-suite.cc
    test/time-test-suite.cc
    test/timer-test-suite.cc
    test/traced-callback-test-suite.cc
    test/trickle-timer-test-suite.cc
    test/tuple-value-test-suite.cc
    test/type-id-test-suite.cc
    test/type-traits-test-suite.cc
    test/watchdog-test-suite.cc
)

# Build core lib
build_lib(
  LIBNAME core
  SOURCE_FILES ${source_files}
  HEADER_FILES ${header_files}
  LIBRARIES_TO_LINK ${libraries_to_link}
  TEST_SOURCES ${test_sources}
)