import os
import subprocess

from . import arch, make, pkgcomposer


def _rust_triple(semios: str) -> str:
    return semios.replace("-semios-linux", "-unknown-linux-musl")


def build(rem: list[str] = []):
    cmdline = [
        "cargo",
        "build",
        "--release",
        "--target",
        _rust_triple(arch.get_target()),
    ] + rem
    os.environ["RUSTFLAGS"] = (
        os.environ.get("RUSTFLAGS", "") + " -C target-feature=-crt-static"
    )
    subprocess.run(cmdline)


def artifacts_dir():
    return f"target/{_rust_triple(arch.get_target())}/release"


def _do_auto_pack(pc: pkgcomposer.PkgComposer, srcdir: str, dstdir: str, filter):
    pc.makedir(dstdir)
    with os.scandir(srcdir) as entries:
        for ent in entries:
            if filter(ent):
                if ent.is_dir(follow_symlinks=False):
                    pc.makedir(f"{dstdir}/{ent.name}")
                elif ent.is_file(follow_symlinks=False):
                    pc.addfile(ent.path, f"{dstdir}/{ent.name}")
                elif ent.is_symlink() and not os.path.isabs(os.readlink(ent.path)):
                    pc.addfile(ent.path, f"{dstdir}/{ent.name}")


def _autopack_filter_lib(ent) -> bool:
    if ent.is_dir(follow_symlinks=False):
        return False
    if ent.name.endswith(".so"):
        return True
    else:
        return False


def _autopack_filter_bin(ent) -> bool:
    return os.access(ent.path, os.X_OK) and ent.is_file(follow_symlinks=False)


def _auto_pack(profiles: list[str], pc: pkgcomposer.PkgComposer):
    if "lib" in profiles:
        _do_auto_pack(pc, artifacts_dir(), "lib", _autopack_filter_lib)
    if "bin" in profiles:
        _do_auto_pack(pc, artifacts_dir(), "bin", _autopack_filter_bin)


def use_auto_pack(profiles: list[str]):
    make.on_pack(lambda pc: _auto_pack(profiles, pc))