cmake_minimum_required(VERSION 3.16)

project(r1_vision LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

option(BUILD_VISION "Build vision components" ON)
option(BUILD_VOICE "Build R1 voice assistant" ON)

set(UNITREE_SDK2_DIR
    "/home/jvizner/unitree_sdk2"
    CACHE PATH "Path to unitree_sdk2"
)

# ============================================================
# Unitree SDK2
# ============================================================

if(BUILD_VISION OR BUILD_VOICE)

    if(NOT EXISTS "${UNITREE_SDK2_DIR}/CMakeLists.txt")
        message(FATAL_ERROR
            "Invalid UNITREE_SDK2_DIR: ${UNITREE_SDK2_DIR}"
        )
    endif()

    add_subdirectory(
        "${UNITREE_SDK2_DIR}"
        "${CMAKE_BINARY_DIR}/unitree_sdk2"
        EXCLUDE_FROM_ALL
    )

endif()

# ============================================================
# Vision
# ============================================================

if(BUILD_VISION)

    find_package(Eigen3 REQUIRED)

    find_package(OpenCV REQUIRED COMPONENTS
        core
        imgproc
        highgui
        imgcodecs
    )

    find_package(pinocchio REQUIRED)

    add_library(r1_vision_common INTERFACE)

    target_include_directories(
        r1_vision_common
        INTERFACE
            "${CMAKE_CURRENT_SOURCE_DIR}/include"
            "${UNITREE_SDK2_DIR}/include"
    )

    target_link_libraries(
        r1_vision_common
        INTERFACE
            Eigen3::Eigen
            pinocchio::pinocchio
            ${OpenCV_LIBS}
            unitree_sdk2
    )

    target_compile_definitions(
        r1_vision_common
        INTERFACE
            UNITREE_SDK2_DIR="${UNITREE_SDK2_DIR}"
    )

    add_executable(
        vision_node
        src/vision_node.cc
    )

    target_link_libraries(
        vision_node
        PRIVATE
            r1_vision_common
    )

    add_executable(
        r1_hand_calibrate
        src/r1_hand_calibrate.cc
    )

    target_link_libraries(
        r1_hand_calibrate
        PRIVATE
            r1_vision_common
    )

endif()

# ============================================================
# Voice
# ============================================================

if(BUILD_VOICE)

    find_package(CURL REQUIRED)

    add_executable(
        r1_voice

        src/voice_node.cc
        src/stt.cc
        src/llm.cc
        src/tts.cc
        src/conversation.cc
    )

    add_executable(
    r1_mic_test
    src/r1_mic_test.cc
)

target_include_directories(
    r1_mic_test
    PRIVATE
        "${UNITREE_SDK2_DIR}/include"
)

    target_include_directories(
        r1_voice
        PRIVATE
            "${CMAKE_CURRENT_SOURCE_DIR}/include"
            "${UNITREE_SDK2_DIR}/include"
    )

    target_link_libraries(
        r1_voice
        PRIVATE
            unitree_sdk2
            CURL::libcurl
    )

endif()

# ============================================================
# Install
# ============================================================

set(INSTALL_TARGETS "")

if(BUILD_VISION)
    list(APPEND INSTALL_TARGETS
        vision_node
        r1_hand_calibrate
    )
endif()

if(BUILD_VOICE)
    list(APPEND INSTALL_TARGETS
        r1_voice
    )
endif()

install(
    TARGETS ${INSTALL_TARGETS}
    RUNTIME DESTINATION bin
)

if(BUILD_VISION)

    install(
        DIRECTORY config/
        DESTINATION share/r1_vision/config
    )

    install(
        PROGRAMS scripts/yolo_detector.py
        DESTINATION share/r1_vision/scripts
    )

endif()