cmake_minimum_required(VERSION 3.4.1)

set (CMAKE_VERBOSE_MAKEFILE ON)
set (CMAKE_CXX_STANDARD 14)
set (CMAKE_CXX_FLAGS "-DFOLLY_NO_CONFIG=1 -DFOLLY_HAVE_CLOCK_GETTIME=1 -DFOLLY_HAVE_MEMRCHR=1 -DFOLLY_USE_LIBCPP=1 -DFOLLY_MOBILE=1 -DON_ANDROID -DONANDROID -DFOR_HERMES=${FOR_HERMES}")

set (PACKAGE_NAME "VisionCamera")
set (BUILD_DIR ${CMAKE_SOURCE_DIR}/build)
set (RN_SO_DIR ${NODE_MODULES_DIR}/react-native/ReactAndroid/src/main/jni/first-party/react/jni)

# VisionCamera shared

if(${REACT_NATIVE_VERSION} LESS 66)
        set (
                INCLUDE_JSI_CPP
                "${NODE_MODULES_DIR}/react-native/ReactCommon/jsi/jsi/jsi.cpp"
        )
        set (
                INCLUDE_JSIDYNAMIC_CPP
                "${NODE_MODULES_DIR}/react-native/ReactCommon/jsi/jsi/JSIDynamic.cpp"
        )
endif()

add_library(
        ${PACKAGE_NAME}
        SHARED
        src/main/cpp/VisionCamera.cpp
        src/main/cpp/JSIJNIConversion.cpp
        src/main/cpp/FrameHostObject.cpp
        src/main/cpp/FrameProcessorRuntimeManager.cpp
        src/main/cpp/CameraView.cpp
        src/main/cpp/VisionCameraScheduler.cpp
        src/main/cpp/java-bindings/JFrameProcessorPlugin.cpp
        src/main/cpp/java-bindings/JImageProxy.cpp
        src/main/cpp/java-bindings/JHashMap.cpp
)

# includes

file (GLOB LIBFBJNI_INCLUDE_DIR "${BUILD_DIR}/fbjni-*-headers.jar/")

target_include_directories(
        ${PACKAGE_NAME}
        PRIVATE
        # --- fbjni ---
        "${LIBFBJNI_INCLUDE_DIR}"
        # --- Third Party (required by RN) ---
        "${BUILD_DIR}/third-party-ndk/boost"
        "${BUILD_DIR}/third-party-ndk/double-conversion"
        "${BUILD_DIR}/third-party-ndk/folly"
        "${BUILD_DIR}/third-party-ndk/glog"
        # --- React Native ---
        "${NODE_MODULES_DIR}/react-native/React"
        "${NODE_MODULES_DIR}/react-native/React/Base"
        "${NODE_MODULES_DIR}/react-native/ReactAndroid/src/main/jni"
        "${NODE_MODULES_DIR}/react-native/ReactAndroid/src/main/java/com/facebook/react/turbomodule/core/jni"
        "${NODE_MODULES_DIR}/react-native/ReactCommon"
        "${NODE_MODULES_DIR}/react-native/ReactCommon/callinvoker"
        "${NODE_MODULES_DIR}/react-native/ReactCommon/jsi"
        "${NODE_MODULES_DIR}/hermes-engine/android/include/"
        ${INCLUDE_JSI_CPP} # only on older RN versions
        ${INCLUDE_JSIDYNAMIC_CPP} # only on older RN versions
        # --- Reanimated ---
        "${NODE_MODULES_DIR}/react-native-reanimated/Common/cpp/headers/AnimatedSensor"
        "${NODE_MODULES_DIR}/react-native-reanimated/Common/cpp/headers/Tools"
        "${NODE_MODULES_DIR}/react-native-reanimated/Common/cpp/headers/SpecTools"
        "${NODE_MODULES_DIR}/react-native-reanimated/Common/cpp/headers/SharedItems"
        "${NODE_MODULES_DIR}/react-native-reanimated/Common/cpp/headers/Registries"
        "${NODE_MODULES_DIR}/react-native-reanimated/Common/cpp/headers/LayoutAnimations"
        "${NODE_MODULES_DIR}/react-native-reanimated/Common/cpp/hidden_headers"
        "src/main/cpp"
)

# find libraries

file (GLOB LIBRN_DIR "${BUILD_DIR}/react-native-0*/jni/${ANDROID_ABI}")

if(${FOR_HERMES})
        string(APPEND CMAKE_CXX_FLAGS " -DJS_RUNTIME_HERMES=1")

        if(${REACT_NATIVE_VERSION} LESS 69)
                # From `hermes-engine` npm package
                target_include_directories(
                        ${PACKAGE_NAME}
                        PRIVATE
                        "${JS_RUNTIME_DIR}/android/include"
                )
        else()
                # Bundled Hermes from module `com.facebook.react:hermes-engine` or project `:ReactAndroid:hermes-engine`
                target_include_directories(
                        ${PACKAGE_NAME}
                        PRIVATE
                        "${JS_RUNTIME_DIR}/API"
                        "${JS_RUNTIME_DIR}/public"
                )
        endif()

        target_link_libraries(
                ${PACKAGE_NAME}
                "${BUILD_DIR}/third-party-ndk/hermes/jni/${ANDROID_ABI}/libhermes.so"
        )
        file (GLOB LIBREANIMATED_DIR "${BUILD_DIR}/react-native-reanimated-*-hermes.aar/jni/${ANDROID_ABI}")
else()
        file (GLOB LIBJSC_DIR "${BUILD_DIR}/android-jsc*.aar/jni/${ANDROID_ABI}")

        # Use JSC
        find_library(
                JS_ENGINE_LIB
                jscexecutor
                PATHS ${LIBRN_DIR}
                NO_CMAKE_FIND_ROOT_PATH
        )
        target_link_libraries(
                ${PACKAGE_NAME}
                ${JS_ENGINE_LIB}
        )

        # Use Reanimated JSC
        file (GLOB LIBREANIMATED_DIR "${BUILD_DIR}/react-native-reanimated-*-jsc.aar/jni/${ANDROID_ABI}")
endif()

find_library(
        FBJNI_LIB
        fbjni
        PATHS ${LIBRN_DIR}
        NO_CMAKE_FIND_ROOT_PATH
)

if(${REACT_NATIVE_VERSION} LESS 69)
        find_library(
                FOLLY_LIB
                folly_json
                PATHS ${LIBRN_DIR}
                NO_CMAKE_FIND_ROOT_PATH
        )
else()
        find_library(
                FOLLY_LIB
                folly_runtime
                PATHS ${LIBRN_DIR}
                NO_CMAKE_FIND_ROOT_PATH
        )
endif()

find_library(
        REACT_NATIVE_JNI_LIB
        reactnativejni
        PATHS ${LIBRN_DIR}
        NO_CMAKE_FIND_ROOT_PATH
)

if(${REACT_NATIVE_VERSION} LESS 66)
        # JSI lib didn't exist on RN 0.65 and before. Simply omit it.
        set (JSI_LIB "")
else()
        # RN 0.66 distributes libjsi.so, can be used instead of compiling jsi.cpp manually.
        find_library(
                JSI_LIB
                jsi
                PATHS ${LIBRN_DIR}
                NO_CMAKE_FIND_ROOT_PATH
        )
endif()

find_library(
        REANIMATED_LIB
        reanimated
        PATHS ${LIBREANIMATED_DIR}
        NO_CMAKE_FIND_ROOT_PATH
)

find_library(
        LOG_LIB
        log
)

# linking
message(WARNING "VisionCamera linking: FOR_HERMES=${FOR_HERMES}")
target_link_libraries(
        ${PACKAGE_NAME}
        ${LOG_LIB}
        ${JSI_LIB}
        ${REANIMATED_LIB}
        ${REACT_NATIVE_JNI_LIB}
        ${FBJNI_LIB}
        ${FOLLY_LIB}
        android
)