# Uniform Buffer Validation
# Extracted from main CMakeLists.txt

# Sub-task 7: Integrate validation tool into CI/build system

# Ensure the Python validation script is available
add_custom_target(validate_uniforms_script ALL DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/tools/validate_uniforms.py)

# Find all WGSL files recursively in src/gpu
file(GLOB WGSL_FILES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/*.wgsl ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/**/*.wgsl)

# List of C++ files containing uniform struct definitions and shader code
# Add more C++ files here if new effects with structs are added.
set(VALIDATION_CPP_FILES
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/effects/heptagon_effect.cc
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/effects/post_process_helper.h
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/effects/fade_effect.cc
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/effects/theme_modulation_effect.cc
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/effects/chroma_aberration_effect.cc
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/effects/vignette_effect.cc
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/effects/gaussian_blur_effect.cc
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/effects/distort_effect.cc
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/demo_effects.h
    ${CMAKE_CURRENT_SOURCE_DIR}/src/gpu/effects/circle_mask_effect.h
)

# Add custom command to run the validator
# It depends on the script itself, WGSL files, and the C++ files being validated.
# Outputting a flag file to signal completion.
set(VALIDATION_FLAG ${CMAKE_CURRENT_BINARY_DIR}/uniform_validation_complete.flag)
add_custom_command(
    OUTPUT ${VALIDATION_FLAG}
    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/tools/validate_uniforms.py ${VALIDATION_FLAG}
    COMMAND python3 ${CMAKE_CURRENT_SOURCE_DIR}/tools/validate_uniforms.py ${CMAKE_CURRENT_SOURCE_DIR}/assets/final/shaders ${VALIDATION_CPP_FILES}
    DEPENDS validate_uniforms_script ${WGSL_FILES} ${VALIDATION_CPP_FILES}
    COMMENT "Validating uniform buffer sizes and alignments..."
)

# Add custom target that depends on the validation output flag
add_custom_target(validate_uniforms ALL DEPENDS ${VALIDATION_FLAG})