import re
from SCons.Script import *

def _git_cook(env: Environment, repo: dict) -> dict:
    lib_zlib = env.Cook('zlib')
    checkout_root = repo['checkout_root']
    build_result = env.CMakeProject(checkout_root, dependencies = [lib_zlib])
    lib_name = {
        'debug': 'png16d'
    }.get(env['BUILD_TYPE'], 'png16')
    return {
        'CPPPATH': build_result['CPPPATH'],
        'LIBS': [env.FindLib(lib_name, paths=build_result['LIBPATH'])]
    }


env.GitRecipe(
    globals = globals(),
    repo_name = 'libpng',
    repo_url = 'https://git.code.sf.net/p/libpng/code.git',
    tag_pattern = re.compile(r'^v([0-9]+)\.([0-9]+)\.([0-9]+)$'),
    tag_fn = lambda version: f'v{version[0]}.{version[1]}.{version[2]}',
    cook_fn = _git_cook,
    dependencies = {
        'zlib': {}
    }
)