cmake_minimum_required(VERSION 3.10)
project(runner VERSION 1.0)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# Include directories
include_directories(include)

# Find required packages
find_package(nlohmann_json QUIET)
if(NOT nlohmann_json_FOUND)
    include(FetchContent)
    FetchContent_Declare(
        nlohmann_json
        GIT_REPOSITORY https://github.com/nlohmann/json.git
        GIT_TAG v3.11.2
    )
    FetchContent_MakeAvailable(nlohmann_json)
endif()

# Try to find libssh using different methods
find_package(libssh QUIET)
if(NOT libssh_FOUND)
    find_package(PkgConfig QUIET)
    if(PKG_CONFIG_FOUND)
        pkg_check_modules(LIBSSH libssh QUIET)
    endif()
    
    if(NOT LIBSSH_FOUND)
        # Try to find manually if pkg-config failed too
        find_path(LIBSSH_INCLUDE_DIR
            NAMES libssh/libssh.h
            PATHS /usr/include /usr/local/include
        )
        
        find_library(LIBSSH_LIBRARY
            NAMES ssh libssh
            PATHS /usr/lib /usr/local/lib /usr/lib/x86_64-linux-gnu
        )
        
        if(LIBSSH_INCLUDE_DIR AND LIBSSH_LIBRARY)
            set(LIBSSH_FOUND TRUE)
            set(LIBSSH_LIBRARIES ${LIBSSH_LIBRARY})
            set(LIBSSH_INCLUDE_DIRS ${LIBSSH_INCLUDE_DIR})
            message(STATUS "Found libssh: ${LIBSSH_LIBRARY}")
        else()
            message(FATAL_ERROR "libssh not found. Please install libssh-dev package.\nOn Ubuntu/Debian: sudo apt install libssh-dev\nOn CentOS/RHEL: sudo yum install libssh-devel\nOn macOS: brew install libssh")
        endif()
    endif()
endif()

# Print libssh information for debugging
message(STATUS "LIBSSH_FOUND: ${LIBSSH_FOUND}")
message(STATUS "LIBSSH_LIBRARIES: ${LIBSSH_LIBRARIES}")
message(STATUS "LIBSSH_INCLUDE_DIRS: ${LIBSSH_INCLUDE_DIRS}")

find_package(Threads REQUIRED)

# Library target
add_library(dropshell_runner STATIC
    src/runner.cpp
    src/base64.cpp
)

target_include_directories(dropshell_runner PUBLIC
    ${CMAKE_CURRENT_SOURCE_DIR}/include
    ${LIBSSH_INCLUDE_DIRS}
)

# Link with libssh
if(libssh_FOUND)
    # libssh was found using the find_package method
    target_link_libraries(dropshell_runner PUBLIC
        nlohmann_json::nlohmann_json
        ssh
        Threads::Threads
    )
else()
    # libssh was found using pkg-config or manual search
    target_link_libraries(dropshell_runner PUBLIC
        nlohmann_json::nlohmann_json
        ${LIBSSH_LIBRARIES}
        Threads::Threads
    )
endif()

# Executable target
add_executable(runner src/main.cpp)
target_link_libraries(runner PRIVATE dropshell_runner)