if(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} VERSION_LESS 3.1)
  set(CMAKE_LEGACY_CYGWIN_WIN32 0) # Remove when CMake > 2.8.4 is required
  cmake_minimum_required(VERSION 2.8)
else()
  cmake_minimum_required(VERSION 3.1)
endif()

project(lpass)
include(GNUInstallDirs)
find_package(PkgConfig REQUIRED)

if(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} VERSION_LESS 3.4)
  # pkg_get_variable is not available until CMake >= 3.4.0
  # Debian oldstable still packages CMake 3.0.2
  function(pkg_get_variable _output_name _pkg _name)
    execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} --variable=${_name} ${_pkg}
                    OUTPUT_VARIABLE _pkg_result
                    OUTPUT_STRIP_TRAILING_WHITESPACE)

    set("${_output_name}" "${_pkg_result}" CACHE STRING "pkg-config variable ${_name} of ${_pkg}")
  endfunction()

  pkg_get_variable(BASH_COMPLETION_PREFIX bash-completion prefix)
  if(BASH_COMPLETION_PREFIX)
    set(BASH_COMPLETION_FOUND TRUE)
  endif()

else()

  include(FindPkgConfig)
  pkg_search_module(BASH_COMPLETION bash-completion)

endif()

if(APPLE)
  find_program(BREW_INSTALLED BREW)

  if(BREW_INSTALLED)  
    function(get_brew_packageconfig_path _package_name _output_variable)
      execute_process(COMMAND brew --cellar ${_package_name}
                      RESULT_VARIABLE _result_var_cellar
                      OUTPUT_VARIABLE _output_variable_cellar
                      OUTPUT_STRIP_TRAILING_WHITESPACE)

      if(_result_var_cellar AND NOT STATUS EQUAL 0)
        message(STATUS "Unable to obtain homebrew cellar location for package ${_package_name}. Error: ${_result_var_cellar}")
      else()
        execute_process(COMMAND find "${_output_variable_cellar}/" -type d -name pkgconfig
                        COMMAND tr -d '\n'
                        COMMAND tr -s '/'
                        RESULT_VARIABLE _brew_pkgconfig_c
                        OUTPUT_VARIABLE _brew_pkgconfig_cellar
                        OUTPUT_STRIP_TRAILING_WHITESPACE)
      endif()

      execute_process(COMMAND brew --prefix ${_package_name}
                      RESULT_VARIABLE _result_var_prefix
                      OUTPUT_VARIABLE _output_variable_prefix
                      OUTPUT_STRIP_TRAILING_WHITESPACE)
      
      if(_result_var_prefix AND NOT STATUS EQUAL 0)
        message(STATUS "Unable to obtain homebrew prefix location for package ${_package_name}. Error: ${_result_var_cellar}")
      else()
        execute_process(COMMAND find "${_output_variable_prefix}/" -type d -name pkgconfig
                        COMMAND tr -d '\n'
                        COMMAND tr -s '/'
                        RESULT_VARIABLE _brew_pkgconfig_p
                        OUTPUT_VARIABLE _brew_pkgconfig_prefix
                        OUTPUT_STRIP_TRAILING_WHITESPACE)
      endif()

      set("${_output_variable}" "${_brew_pkgconfig_cellar}:${_brew_pkgconfig_prefix}" CACHE STRING "pkg-config homebrew locations for ${_package_name}")

    endfunction()

    # Get pkg-config paths for curl/openssl installed via homebrew
    get_brew_packageconfig_path("curl" BREW_CURL)
    get_brew_packageconfig_path("openssl" BREW_OPENSSL)

    set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}/usr/local/opt/curl/lib/pkgconfig:/usr/local/opt/openssl:${BREW_CURL}:${BREW_OPENSSL}")
    message(STATUS "PKG_CONFIG_PATH: $ENV{PKG_CONFIG_PATH}")
  else()
    set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}:/usr/local/opt/curl/lib/pkgconfig:/usr/local/opt/openssl")
  endif()

endif()

find_package(LibXml2 REQUIRED)
include_directories(${LIBXML2_INCLUDE_DIR})

find_package(OpenSSL REQUIRED)
include_directories(${OPENSSL_INCLUDE_DIR})

find_package(CURL REQUIRED)
include_directories(${CURL_INCLUDE_DIR})

set(PROJECT_NAME lpass)

file(GLOB PROJECT_HEADERS *.h version.h)
file(GLOB PROJECT_SOURCES *.c)

set(PROJECT_DEFINITIONS "_GNU_SOURCE")

set(PROJECT_FLAGS "-std=gnu99 -pedantic -Wall -Wextra -Wno-language-extension-token")
if(APPLE)
  set(PROJECT_FLAGS "${PROJECT_FLAGS} -Wno-deprecated-declarations")
endif()

execute_process(COMMAND ./LASTPASS-VERSION-GEN
	WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})

# Main lpass executable
add_executable(${PROJECT_NAME} ${PROJECT_HEADERS} ${PROJECT_SOURCES})
set_target_properties(${PROJECT_NAME} PROPERTIES
  C_STANDARD 99
  COMPILE_FLAGS ${PROJECT_FLAGS}
  COMPILE_DEFINITIONS ${PROJECT_DEFINITIONS}
)

target_link_libraries(${PROJECT_NAME} ${LIBXML2_LIBRARIES} ${OPENSSL_LIBRARIES} ${CURL_LIBRARIES})
if (CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
  target_link_libraries(${PROJECT_NAME} "-lkvm")
endif (CMAKE_SYSTEM_NAME MATCHES "OpenBSD")

add_custom_command(OUTPUT lpass.1 DEPENDS ${CMAKE_SOURCE_DIR}/lpass.1.txt
        COMMAND a2x -D ./ --no-xmllint -f manpage ${CMAKE_SOURCE_DIR}/lpass.1.txt)
add_custom_command(OUTPUT lpass.1.html DEPENDS ${CMAKE_SOURCE_DIR}/lpass.1.txt
        COMMAND asciidoc -b html5 -a data-uri -a icons -a toc2 -o lpass.1.html ${CMAKE_SOURCE_DIR}/lpass.1.txt)

install(TARGETS ${PROJECT_NAME} RUNTIME DESTINATION bin)

if(BASH_COMPLETION_FOUND)
  pkg_get_variable(BASH_COMPLETION_COMPLETIONSDIR bash-completion completionsdir)

  # Fix GH-478
  if(NOT "${BASH_COMPLETION_PREFIX}" STREQUAL "${CMAKE_INSTALL_PREFIX}")
    string(REGEX REPLACE "^${BASH_COMPLETION_PREFIX}" "${CMAKE_INSTALL_PREFIX}" COMP_DIR ${BASH_COMPLETION_COMPLETIONSDIR})
    set(BASH_COMPLETION_COMPLETIONSDIR ${COMP_DIR})
    unset(COMP_DIR)
  endif()

  install(FILES contrib/lpass_bash_completion DESTINATION ${BASH_COMPLETION_COMPLETIONSDIR} RENAME lpass)
endif()

# Test lpass executable with mock server, link against test versions first
file(GLOB LPTEST_SOURCES test/*.c *.c)
add_executable(lpass-test EXCLUDE_FROM_ALL ${PROJECT_HEADERS} ${LPTEST_SOURCES})
set_target_properties(lpass-test PROPERTIES
  C_STANDARD 99
  COMPILE_FLAGS "${PROJECT_FLAGS} -DTEST_BUILD"
  COMPILE_DEFINITIONS ${PROJECT_DEFINITIONS}
)
target_link_libraries(lpass-test ${LIBXML2_LIBRARIES} ${OPENSSL_LIBRARIES} ${CURL_LIBRARIES})
if (CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
  target_link_libraries(lpass-test "-lkvm")
endif (CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
enable_testing()
add_test(test_login ${CMAKE_SOURCE_DIR}/test/tests test_login)
add_test(test_login_wrong_pw_should_fail ${CMAKE_SOURCE_DIR}/test/tests test_login_wrong_pw_should_fail)
add_test(test_add_account ${CMAKE_SOURCE_DIR}/test/tests test_add_account)
add_test(test_add_note ${CMAKE_SOURCE_DIR}/test/tests test_add_note)
add_test(test_add_note_with_field ${CMAKE_SOURCE_DIR}/test/tests test_add_note_with_field)
add_test(test_add_site_note ${CMAKE_SOURCE_DIR}/test/tests test_add_site_note)
add_test(test_add_ssn_name ${CMAKE_SOURCE_DIR}/test/tests test_add_ssn_name)
add_test(test_add_ssh_key ${CMAKE_SOURCE_DIR}/test/tests test_add_ssh_key)
add_test(test_edit_ssh_key ${CMAKE_SOURCE_DIR}/test/tests test_edit_ssh_key)
add_test(test_edit_username ${CMAKE_SOURCE_DIR}/test/tests test_edit_username)
add_test(test_edit_field ${CMAKE_SOURCE_DIR}/test/tests test_edit_field)
add_test(test_edit_reprompt ${CMAKE_SOURCE_DIR}/test/tests test_edit_reprompt)
add_test(test_duplicate ${CMAKE_SOURCE_DIR}/test/tests test_duplicate)
add_test(test_generate ${CMAKE_SOURCE_DIR}/test/tests test_generate)
add_test(test_show ${CMAKE_SOURCE_DIR}/test/tests test_show)
add_test(test_show_json ${CMAKE_SOURCE_DIR}/test/tests test_show_json)
add_test(test_show_note ${CMAKE_SOURCE_DIR}/test/tests test_show_note)
add_test(test_show_reprompt ${CMAKE_SOURCE_DIR}/test/tests test_show_reprompt)
add_test(test_ls ${CMAKE_SOURCE_DIR}/test/tests test_ls)
add_test(test_export ${CMAKE_SOURCE_DIR}/test/tests test_export)
add_test(test_export_extended ${CMAKE_SOURCE_DIR}/test/tests test_export_extended)

add_custom_target(doc-man DEPENDS lpass.1)
add_custom_target(doc-html DEPENDS lpass.1.html)
# See https://cmake.org/pipermail/cmake/2009-January/026520.html
add_custom_target(install-doc COMMAND ${CMAKE_COMMAND} -DMANDIR=${CMAKE_INSTALL_FULL_MANDIR} -P ${CMAKE_SOURCE_DIR}/cmake_extras/install_doc.cmake DEPENDS doc-man)
add_custom_target(uninstall COMMAND ${CMAKE_COMMAND} -DPROJECT_NAME=${PROJECT_NAME} -DMANDIR=${CMAKE_INSTALL_FULL_MANDIR} -P ${CMAKE_SOURCE_DIR}/cmake_extras/uninstall.cmake)