cmake_minimum_required(VERSION 3.19)

file(READ "${CMAKE_SOURCE_DIR}/VERSION" VER_RAW)
string(STRIP ${VER_RAW} VERSION)

project(
  hyprlock
  DESCRIPTION "A gpu-accelerated screen lock for Hyprland"
  VERSION ${VERSION})

set(CMAKE_MESSAGE_LOG_LEVEL "STATUS")
set(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)

if(CMAKE_BUILD_TYPE MATCHES Debug OR CMAKE_BUILD_TYPE MATCHES DEBUG)
  message(STATUS "Configuring hyprlock in Debug with CMake")
  add_compile_definitions(HYPRLAND_DEBUG)
else()
  add_compile_options(-O3)
  message(STATUS "Configuring hyprlock in Release with CMake")
endif()

include_directories(. "protocols/")

include(GNUInstallDirs)

# configure
set(CMAKE_CXX_STANDARD 23)
add_compile_options(-Wall -Wextra -Wno-unused-parameter -Wno-unused-value
                    -Wno-missing-field-initializers -Wno-narrowing)

# position independent build: __FILE__
add_compile_options(-fmacro-prefix-map=${CMAKE_SOURCE_DIR}/=)
add_compile_definitions(HYPRLOCK_VERSION="${VERSION}")

# dependencies
message(STATUS "Checking deps...")

find_package(Threads REQUIRED)
find_package(PkgConfig REQUIRED)
find_package(OpenGL REQUIRED)
pkg_check_modules(
  deps
  REQUIRED
  IMPORTED_TARGET
  wayland-client
  wayland-protocols
  wayland-egl
  hyprlang>=0.4.0
  egl
  opengl
  xkbcommon
  libjpeg
  libwebp
  libmagic
  cairo
  pangocairo
  libdrm
  gbm
  hyprutils>=0.2.3
  sdbus-c++>=2.0.0
  hyprgraphics)

file(GLOB_RECURSE SRCFILES CONFIGURE_DEPENDS "src/*.cpp")
add_executable(hyprlock ${SRCFILES})
target_link_libraries(hyprlock PRIVATE pam rt Threads::Threads PkgConfig::deps
                                       OpenGL::EGL OpenGL::GL)

# protocols
find_program(WaylandScanner NAMES wayland-scanner)
message(STATUS "Found WaylandScanner at ${WaylandScanner}")
execute_process(
  COMMAND pkg-config --variable=pkgdatadir wayland-protocols
  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  OUTPUT_VARIABLE WAYLAND_PROTOCOLS_DIR
  OUTPUT_STRIP_TRAILING_WHITESPACE)
message(STATUS "Found wayland-protocols at ${WAYLAND_PROTOCOLS_DIR}")

function(protocol protoPath protoName external)
  if(external)
    execute_process(
      COMMAND ${WaylandScanner} client-header ${protoPath}
              protocols/${protoName}-protocol.h
      WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
    execute_process(
      COMMAND ${WaylandScanner} private-code ${protoPath}
              protocols/${protoName}-protocol.c
      WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
    target_sources(hyprlock PRIVATE protocols/${protoName}-protocol.c)
  else()
    execute_process(
      COMMAND
        ${WaylandScanner} client-header ${WAYLAND_PROTOCOLS_DIR}/${protoPath}
        protocols/${protoName}-protocol.h
      WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
    execute_process(
      COMMAND
        ${WaylandScanner} private-code ${WAYLAND_PROTOCOLS_DIR}/${protoPath}
        protocols/${protoName}-protocol.c
      WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
    target_sources(hyprlock PRIVATE protocols/${protoName}-protocol.c)
  endif()
endfunction()

make_directory(${CMAKE_SOURCE_DIR}/protocols) # we don't ship any custom ones so
                                              # the dir won't be there
protocol("staging/ext-session-lock/ext-session-lock-v1.xml"
         "ext-session-lock-v1" false)
protocol("staging/cursor-shape/cursor-shape-v1.xml" "cursor-shape-v1" false)
protocol("unstable/tablet/tablet-unstable-v2.xml" "tablet-unstable-v2" false)
protocol("staging/fractional-scale/fractional-scale-v1.xml"
         "fractional-scale-v1" false)
protocol("stable/viewporter/viewporter.xml" "viewporter" false)
protocol("protocols/wlr-screencopy-unstable-v1.xml"
         "wlr-screencopy-unstable-v1" true)
protocol("unstable/linux-dmabuf/linux-dmabuf-unstable-v1.xml"
         "linux-dmabuf-unstable-v1" false)

# Installation
install(TARGETS hyprlock)

install(FILES ${CMAKE_SOURCE_DIR}/pam/hyprlock
        DESTINATION ${CMAKE_INSTALL_FULL_SYSCONFDIR}/pam.d)

install(
  FILES ${CMAKE_SOURCE_DIR}/assets/example.conf
  DESTINATION ${CMAKE_INSTALL_FULL_DATAROOTDIR}/hypr
  RENAME hyprlock.conf)