# package: find external packages
include(FindPkgConfig)

# package: required boost libraries
set(Boost_USE_STATIC_LIBS OFF)
set(Boost_USE_MULTITHREADED OFF)
set(Boost_USE_STATIC_RUNTIME OFF)

find_package(Boost 1.44 COMPONENTS filesystem program_options system serialization date_time REQUIRED)

# package: boost-custom
include_directories(${CMAKE_SOURCE_DIR}/lib/boost-custom)

# package: boost-net-dns
include_directories(${CMAKE_SOURCE_DIR}/lib/boost-net-dns)

# package: libi2ncommon
pkg_check_modules(I2NCOMMON REQUIRED libi2ncommon)
include_directories(${I2NCOMMON_INCLUDE_DIRS})
link_directories(${I2NCOMMON_LIBRARY_DIRS})

# package: doxygen
find_package(Doxygen)

# compiler: include directories where the source code is located
include_directories(${CMAKE_CURRENT_SOURCE_DIR})

# compiler: source code files
set(SOURCES
    config/configuration.cpp
    config/configurationcommandline.cpp
    config/configurationfile.cpp
    config/configurationinterface.cpp
    config/configurationoptions.cpp
    config/configurationreader.cpp
    config/host.cpp
    config/option/daemonoption.cpp
    config/option/configfileoption.cpp
    config/option/configurationoption.cpp
    config/option/hostconfigurationoption.cpp
    config/option/hostpingintervaloption.cpp
    config/option/hostpingprotocoloption.cpp
    config/option/hostportoption.cpp
    config/option/hostnameoption.cpp
    config/option/hostsourcenetworkinterfaceoption.cpp
    config/option/hostsdownlimitoption.cpp
    config/option/linkdownintervaloption.cpp
    config/option/linkupintervaloption.cpp
    config/option/logleveloption.cpp
    config/option/logoutputoption.cpp
    config/option/logfileoption.cpp
    config/option/nameserveroption.cpp
    config/option/pingfaillimitoption.cpp
    config/option/sourcenetworkinterfaceoption.cpp
    config/option/statusnotifiercmdoption.cpp
    config/option/versionoption.cpp
    config/option/ratiorandomhostsoption.cpp
    config/option/pingreplytimeoutoption.cpp
    config/option/maxaddressresolutionattemptsoption.cpp
    config/option/resolvedipttlthresholdoption.cpp
    config/option/mintimebetweenresolvesoption.cpp
    config/option/dnscachefileoption.cpp
    dns/timetolive.cpp
    dns/hostaddress.cpp
    dns/dnsipprotocol.cpp
    dns/dnscache.cpp
    dns/resolverbase.cpp
    dns/dnsresolver.cpp
    dns/dnsmaster.cpp
    host/hoststatus.cpp
    host/pingstatus.cpp
    host/loglevel.cpp
    host/logoutput.cpp
    host/messagepayload.cpp
    host/networkinterfacelist.cpp
    host/pinger.cpp
    host/pingerfactory.cpp
    host/pinginterval.cpp
    host/pingnumber.cpp
    host/pingprotocol.cpp
    host/pingscheduler.cpp
    tools/pcap.cpp
    icmp/icmpdata.cpp
    icmp/icmpdata_pingfailreply.cpp
    icmp/icmpechodata.cpp
    icmp/icmpdestinationunreachabledata.cpp
    icmp/icmptimeexceededdata.cpp
    icmp/icmpheader.cpp
    icmp/icmppacket.cpp
    icmp/icmppinger.cpp
    icmp/icmppacketfactory.cpp
    ip/ipheader.cpp
    ip/ipv4header.cpp
    ip/ipv6header.cpp
    link/linkstatus.cpp
    link/statusnotifiercommand.cpp
    tcp/tcpheader.cpp
    tcp/tcppinger.cpp
    tcp/tcpipv4segment.cpp
    tcp/tcpipv6segment.cpp
    tcp/tcpsegment.cpp
    tcp/tcpsegmentfactory.cpp
    boost_assert_handler.cpp
    main.cpp
)

# documentation: add a target to generate API documentation with Doxygen
if(DOXYGEN_FOUND)
    configure_file(
        ${CMAKE_SOURCE_DIR}/doc/doxyfile.in
        ${CMAKE_BINARY_DIR}/doc/Doxyfile @ONLY
    )
    add_custom_target(
        doc
        ${DOXYGEN_EXECUTABLE}
        ${CMAKE_BINARY_DIR}/doc/Doxyfile
        WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/doc
        COMMENT "Generating API documentation with Doxygen" VERBATIM
    )
endif(DOXYGEN_FOUND)

# compiler: creates the binary
add_executable(${TARGET} ${SOURCES})

# linker: link the program against the libraries
target_link_libraries(
    ${TARGET}
    Boost::filesystem
    Boost::program_options
    Boost::system
    Boost::serialization
    Boost::date_time
    ${I2NCOMMON_LIBRARIES}
    pthread
)

# creates the install rule for the binary
install(TARGETS ${TARGET} DESTINATION bin)


# create a library from the same files to feed into the linker for tools
add_library(lib_for_tools STATIC ${SOURCES})
target_link_libraries(lib_for_tools pthread)

# now create an executable for tools/feed_packet_data that depends on lib_for_tools
set(feed_packet_data_SOURCES tools/pcap.cpp tools/feed_packet_data.cpp)
add_executable(feed_packet_data ${feed_packet_data_SOURCES})
target_link_libraries(
    feed_packet_data
    lib_for_tools
    Boost::filesystem
    Boost::program_options
    Boost::system
    Boost::serialization
    Boost::date_time
    ${I2NCOMMON_LIBRARIES}
)
# no install! install(TARGETS feed_packet_data DESTINATION bin)