cmake_minimum_required(VERSION 3.20)

# Integrate vcpkg toolchain if available
if(DEFINED ENV{VCPKG_ROOT})
    set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake" CACHE STRING "")
elseif(EXISTS "${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake")
    set(CMAKE_TOOLCHAIN_FILE "${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake" CACHE STRING "")
elseif(EXISTS "C:/Users/Gregor Klevže/vcpkg/scripts/buildsystems/vcpkg.cmake")
    set(CMAKE_TOOLCHAIN_FILE "C:/Users/Gregor Klevže/vcpkg/scripts/buildsystems/vcpkg.cmake" CACHE STRING "")
endif()

project(tetris_sdl3 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# Find SDL3 (via package manager or a local build)
# vcpkg example: vcpkg install sdl3
# Homebrew: brew install sdl3
find_package(SDL3 CONFIG REQUIRED)
find_package(SDL3_ttf CONFIG REQUIRED)

add_executable(tetris
    src/main.cpp
    src/Game.cpp
    src/Scores.cpp
    src/Starfield.cpp
    src/Starfield3D.cpp
    src/Font.cpp
    src/Audio.cpp
    src/LineEffect.cpp
    src/SoundEffect.cpp
    # State implementations (new)
    src/states/LoadingState.cpp
    src/states/MenuState.cpp
    src/states/PlayingState.cpp
)

if (WIN32)
    # Embed the application icon into the executable
    set_source_files_properties(src/app_icon.rc PROPERTIES LANGUAGE RC)
    target_sources(tetris PRIVATE src/app_icon.rc)
endif()

if (WIN32)
    # Ensure favicon.ico is available in the build directory for the resource compiler
    set(FAVICON_SRC "${CMAKE_SOURCE_DIR}/assets/favicon/favicon.ico")
    set(FAVICON_DEST "${CMAKE_BINARY_DIR}/favicon.ico")
    if(EXISTS ${FAVICON_SRC})
        add_custom_command(
            OUTPUT ${FAVICON_DEST}
            COMMAND ${CMAKE_COMMAND} -E copy_if_different ${FAVICON_SRC} ${FAVICON_DEST}
            DEPENDS ${FAVICON_SRC}
            COMMENT "Copy favicon.ico to build dir for resource compilation"
        )
        add_custom_target(copy_favicon ALL DEPENDS ${FAVICON_DEST})
        add_dependencies(tetris copy_favicon)
    else()
        message(WARNING "Favicon not found at ${FAVICON_SRC}; app icon may not compile")
    endif()

    # Also copy favicon into the runtime output folder (same dir as exe)
    add_custom_command(TARGET tetris POST_BUILD
        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${FAVICON_SRC} $<TARGET_FILE_DIR:tetris>/favicon.ico
        COMMENT "Copy favicon.ico next to executable"
    )
endif()

target_link_libraries(tetris PRIVATE SDL3::SDL3 SDL3_ttf::SDL3_ttf)

if (WIN32)
    target_link_libraries(tetris PRIVATE mfplat mfreadwrite mfuuid)
endif()

# Include production build configuration
include(cmake/ProductionBuild.cmake)