cmake_minimum_required(VERSION 3.10)
project(runner LANGUAGES CXX)

set(BINARY_NAME "argon2_ffi_example")

cmake_policy(SET CMP0063 NEW)

set(CMAKE_INSTALL_RPATH "\$ORIGIN")

# Configure build options.
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()

# Compilation settings that should be applied to most targets.
function(APPLY_STANDARD_SETTINGS TARGET)
  target_compile_features(${TARGET} PUBLIC cxx_std_14)
  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
endfunction()

set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")

# Flutter library and tool build rules.
add_subdirectory(${FLUTTER_MANAGED_DIR})

# Application build
add_executable(${BINARY_NAME}
  "main.cc"
  "window_configuration.cc"
  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
)
apply_standard_settings(${BINARY_NAME})
target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
add_dependencies(${BINARY_NAME} flutter_assemble)

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


# === Installation ===
# By default, "installing" just makes a relocatable bundle in the build
# directory.
set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
endif()

# BundleUtilities doesn't re-copy changed files, so start with a clean build
# bundle directory every time.
INSTALL(CODE "
  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
  " COMPONENT Runtime)

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

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

file(GLOB FLUTTER_PLUGIN_DIRS "${PROJECT_BINARY_DIR}/plugins/*")

INSTALL(CODE "
  include(BundleUtilities)
  fixup_bundle(\"\${CMAKE_INSTALL_PREFIX}/${BINARY_NAME}\" \"\"
    \"${FLUTTER_PLUGIN_DIRS};${FLUTTER_LIBRARY_DIR}\")
  " COMPONENT Runtime)

INSTALL(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_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 lib directory on non-Debug builds only.
if (NOT CMAKE_BUILD_TYPE MATCHES "Debug")
  INSTALL(DIRECTORY "${PROJECT_BUILD_DIR}/lib"
    DESTINATION "${CMAKE_INSTALL_PREFIX}" COMPONENT Runtime)
endif()