#! python3

import os
from pathlib import Path

from umake import make


class Config:
    CC = 'g++'
    APPS = ['test/example_gl']
    IGNORE_APPS = []
    JOB_COUNT = int(os.cpu_count() * 0.8)

    BIN_DIR = Path('bin')
    INCLUDE_DIR = Path('include')
    OBJECT_DIR = Path('obj')
    SOURCE_DIR = Path('src')

    COMMON_FLAGS = '-std=c++17 -fno-semantic-interposition'
    COMMON_DEBUG_FLAGS = '-g'
    COMMON_RELEASE_FLAGS = '-O2'  # -flto'
    COMPILE_FLAGS = f'-Wall -I{INCLUDE_DIR} `pkg-config --cflags glfw3 vulkan gl x11`'
    LINK_FLAGS = '-lpthread -ldl `pkg-config --libs glfw3 vulkan gl x11`'

    PRE_COMPILE_FUNCTION = None

    CPP_SOURCES = [filepath for filepath in SOURCE_DIR.rglob('*.cpp') if not filepath.name.startswith('.')]


def main():
    def pre_compile():
        # Compiling fragment shaders
        for frag_path in Config.SOURCE_DIR.rglob('*.frag'):
            out_path = (Config.BIN_DIR / frag_path.relative_to(Config.SOURCE_DIR))
            if not out_path.parent.exists():
                out_path.parent.mkdir(parents=True)
            if subprocess.run(['glslc', str(frag_path), '-o', str(out_path) + '.spv']).returncode != 0:
                print(f'Error while compiling fragment shader {frag_path}')
                return
    Config.PRE_COMPILE_FUNCTION = pre_compile
    make(Config)


if __name__ == '__main__':
    main()