# Project-level configuration.
cmake_minimum_required(VERSION 3.14)
project(FlClash LANGUAGES CXX)

# The name of the executable created for the application. Change this to change
# the on-disk name of your application.
set(BINARY_NAME "FlClash")

# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
# versions of CMake.
cmake_policy(VERSION 3.14...3.25)

# Define build configuration option.
get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
if(IS_MULTICONFIG)
  set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release"
    CACHE STRING "" FORCE)
else()
  if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
    set(CMAKE_BUILD_TYPE "Debug" CACHE
      STRING "Flutter build mode" FORCE)
    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
      "Debug" "Profile" "Release")
  endif()
endif()
# Define settings for the Profile build mode.
set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")

# Use Unicode for all projects.
add_definitions(-DUNICODE -D_UNICODE)

# Compilation settings that should be applied to most targets.
#
# Be cautious about adding new options here, as plugins use this function by
# default. In most cases, you should add new options to specific targets instead
# of modifying this function.
function(APPLY_STANDARD_SETTINGS TARGET)
  target_compile_features(${TARGET} PUBLIC cxx_std_17)
  target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100")
  target_compile_options(${TARGET} PRIVATE /EHsc)
  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
endfunction()

# Flutter library and tool build rules.
set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
add_subdirectory(${FLUTTER_MANAGED_DIR})

# Application build; see runner/CMakeLists.txt.
add_subdirectory("runner")


# Generated plugin build rules, which manage building the plugins and adding
# them to the application.
include(flutter/generated_plugins.cmake)

# === Installation ===
# Support files are copied into place next to the executable, so that it can
# run in place. This is done instead of making a separate bundle (as on Linux)
# so that building and running from within Visual Studio will work.
set(BUILD_BUNDLE_DIR "$<TARGET_FILE_DIR:${BINARY_NAME}>")
# Make the "install" step default, as it's required to run.
set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1)
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
endif()

set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}")

install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
  COMPONENT Runtime)

install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
  COMPONENT Runtime)

install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
  COMPONENT Runtime)

install(FILES "EnableLoopback.exe" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
  COMPONENT Runtime)

# Ship the MSVC runtime next to the executable. Neither the installer nor the
# portable archive can assume a machine already carries VCRedist, and without
# these the app cannot start at all.
set(CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS_SKIP TRUE)
include(InstallRequiredSystemLibraries)
if(CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS)
  install(FILES ${CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS}
    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
    COMPONENT Runtime)
endif()

if(PLUGIN_BUNDLED_LIBRARIES)
  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
    COMPONENT Runtime)
endif()

# Produced by the setup build hook during flutter_assemble.
set(CORE_ARTIFACTS_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../libclash/windows")
# A running Debug Helper holds its exe open and the copy below fails behind an
# opaque MSB3073; only a Debug install with a changed Helper stops it, matched
# by path so a Helper registered from an installed release is left alone.
install(CODE "
  set(helper_src \"${CORE_ARTIFACTS_DIR}/FlClashHelperService.exe\")
  set(helper_dst \"${INSTALL_BUNDLE_LIB_DIR}/FlClashHelperService.exe\")
  if(\"\${CMAKE_INSTALL_CONFIG_NAME}\" STREQUAL \"Debug\" AND EXISTS \"\${helper_dst}\")
    file(SHA256 \"\${helper_src}\" helper_src_hash)
    file(SHA256 \"\${helper_dst}\" helper_dst_hash)
    if(NOT helper_src_hash STREQUAL helper_dst_hash)
      message(STATUS \"Stopping the Helper running from \${helper_dst} before installing the Debug build\")
      file(TO_NATIVE_PATH \"\${helper_dst}\" helper_dst_native)
      execute_process(COMMAND powershell -NoProfile -NonInteractive -Command
        \"Get-Process -Name FlClashHelperService -ErrorAction SilentlyContinue | Where-Object { $_.Path -eq '\${helper_dst_native}' } | Stop-Process -Force\"
        OUTPUT_QUIET ERROR_QUIET)
    endif()
  endif()
" COMPONENT Runtime)
install(FILES
  "${CORE_ARTIFACTS_DIR}/FlClashCore.exe"
  "${CORE_ARTIFACTS_DIR}/FlClashHelperService.exe"
  "${CORE_ARTIFACTS_DIR}/manifest.json"
  DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
  COMPONENT Runtime)

# Copy the native assets provided by the build.dart from all packages.
set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/windows/")
install(DIRECTORY "${NATIVE_ASSETS_DIR}"
   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
   COMPONENT Runtime)

# Fully re-copy the assets directory on each build to avoid having stale files
# from a previous install.
set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
install(CODE "
  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
  " COMPONENT Runtime)
install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)

# Install the AOT library on non-Debug builds only.
install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
  CONFIGURATIONS Profile;Release
  COMPONENT Runtime)