#!/usr/bin/env python

import methods
from glob import glob
from pathlib import Path

Import("env")

env.platform_sources = []


# Generate export icons
def export_icon_builder(target, source, env):
    src_path = Path(str(source[0]))
    src_name = src_path.stem
    platform = src_path.parent.parent.stem
    with open(str(source[0]), "rb") as file:
        svg = "".join([f"\\{hex(x)[1:]}" for x in file.read()])
    with methods.generated_wrapper(target, prefix=platform) as file:
        file.write(
            f"""\
static const char *_{platform}_{src_name}_svg = "{svg}";
"""
        )


for platform in env.platform_exporters:
    for path in glob(f"{platform}/export/*.svg"):
        env.CommandNoCache(path.replace(".svg", "_svg.gen.h"), path, env.Run(export_icon_builder))


# Register platform-exclusive APIs
def register_platform_apis_builder(target, source, env):
    platforms = source[0].read()
    api_inc = "\n".join([f'#include "{p}/api/api.h"' for p in platforms])
    api_reg = "\n".join([f"\tregister_{p}_api();" for p in platforms])
    api_unreg = "\n".join([f"\tunregister_{p}_api();" for p in platforms])
    with methods.generated_wrapper(target) as file:
        file.write(
            f"""\
#include "register_platform_apis.h"

{api_inc}

void register_platform_apis() {{
{api_reg}
}}

void unregister_platform_apis() {{
{api_unreg}
}}
"""
        )


register_platform_apis = env.CommandNoCache(
    "register_platform_apis.gen.cpp", env.Value(env.platform_apis), env.Run(register_platform_apis_builder)
)
env.add_source_files(env.platform_sources, register_platform_apis)
for platform in env.platform_apis:
    env.add_source_files(env.platform_sources, f"{platform}/api/api.cpp")

lib = env.add_library("platform", env.platform_sources)
env.Prepend(LIBS=[lib])