#!/usr/bin/env python3

# This script wraps llvm-config that intended for cross compiling to Redox.
# Because we can't run llvm-config compiled to Redox, we wrap it here.
# Any recipes that calls this script must have "host:llvm.runtime" available.

import os
import sys
import subprocess

LLVM_CONFIG = "/usr/bin/llvm-config" 

def main():
    toolchain_path = os.environ.get("COOKBOOK_TOOLCHAIN")
    sysroot_path = os.environ.get("COOKBOOK_SYSROOT")

    if not toolchain_path or not sysroot_path:
        print(f"Error: COOKBOOK_TOOLCHAIN or COOKBOOK_SYSROOT not set", file=sys.stderr)
        sys.exit(1)

    cmd = [toolchain_path + LLVM_CONFIG] + sys.argv[1:]

    try:
        result = subprocess.run(
            cmd,
            stdout=subprocess.PIPE,
            stderr=sys.stderr,
            check=False,
            text=True
        )
    except FileNotFoundError:
        print(f"Error: Could not find executable '{LLVM_CONFIG}'", file=sys.stderr)
        sys.exit(1)

    if result.returncode != 0:
        sys.exit(result.returncode)

    output = result.stdout

    if sys.argv[1] in ["--bindir"]:
        output = toolchain_path + "/usr/bin"
    else: #if sys.argv[1] in ["--cppflags", "--cxxflags", "--includedir", "--ldflags", "--libdir", "--libfiles"]
        src = toolchain_path.rstrip(os.sep)
        dst = sysroot_path.rstrip(os.sep)
        
        output = output.replace(src, dst)

    print(output, end='')

if __name__ == "__main__":
    main()