cmake_minimum_required(VERSION 3.10)
project (
  wtr_harness
  VERSION 0.1
  LANGUAGES C)

set(CMAKE_VERBOSE_MAKEFILE ON)
set(CMAKE_BUILD_TYPE Debug)

include_directories(include/ ../wlroots/include /usr/include/pixman-1
  ${CMAKE_CURRENT_BINARY_DIR}/ ${CMAKE_CURRENT_BINARY_DIR}/../wlroots/include)

add_definitions(-DWLR_USE_UNSTABLE)

execute_process(
  COMMAND pkg-config --variable=pkgdatadir wayland-protocols
  OUTPUT_VARIABLE WAYLAND_PROTOCOLS
  RESULT_VARIABLE ec
  OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(${ec} EQUAL 0)
else()
  message(FATAL_ERROR "Failed to execute pkg-config")
endif()

execute_process(
  COMMAND pkg-config --variable=wayland_scanner wayland-scanner
  OUTPUT_VARIABLE WAYLAND_SCANNER
  RESULT_VARIABLE ec
  OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(${ec} EQUAL 0)
else()
  message(FATAL_ERROR "Failed to execute pkg-config")
endif()

set(PLUGIN_INTF ${CMAKE_BINARY_DIR}/plugin_interface.h)
add_custom_command(
  OUTPUT ${PLUGIN_INTF}
  COMMAND perl ${PROJECT_SOURCE_DIR}/tools/genintf.pl <
     ${PROJECT_SOURCE_DIR}/include/plugin.h > ${PLUGIN_INTF}
  DEPENDS ${PROJECT_SOURCE_DIR}/include/plugin.h
  DEPENDS ${PROJECT_SOURCE_DIR}/tools/genintf.pl
)

set(PLUGIN_LOAD ${CMAKE_BINARY_DIR}/gen_plugin_load.c)
add_custom_command(
  OUTPUT ${PLUGIN_LOAD}
  COMMAND perl ${PROJECT_SOURCE_DIR}/tools/genbuild.pl <
  ${PROJECT_SOURCE_DIR}/include/plugin.h > ${PLUGIN_LOAD}
  DEPENDS ${PROJECT_SOURCE_DIR}/include/plugin.h
  DEPENDS ${PROJECT_SOURCE_DIR}/tools/genbuild.pl
)

add_custom_command(
  OUTPUT xdg-shell-protocol.h
  COMMAND ${WAYLAND_SCANNER} server-header
    ${WAYLAND_PROTOCOLS}/stable/xdg-shell/xdg-shell.xml
    xdg-shell-protocol.h
)

add_custom_command(
  OUTPUT xdg-shell-protocol.c
  COMMAND ${WAYLAND_SCANNER} private-code
    ${WAYLAND_PROTOCOLS}/stable/xdg-shell/xdg-shell.xml
    xdg-shell-protocol.c
  DEPENDS xdg-shell-protocol.h
)

file (GLOB_RECURSE SOURCES src/*.c)

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

add_executable (wtr_harness ${SOURCES} ${PLUGIN_LOAD} ${PLUGIN_INTF}
  xdg-shell-protocol.c)

target_link_libraries(wtr_harness dl)
target_link_directories(wtr_harness PUBLIC
  "${CMAKE_CURRENT_BINARY_DIR}/../wlroots")
target_link_libraries(wtr_harness wlroots wayland-server xkbcommon pthread)
target_link_options(wtr_harness PRIVATE -Wl,--wrap=pthread_create)