from __future__ import annotations

from ...App import Scope
from .Cmd import Cmd, Parent
from typing import TYPE_CHECKING

if TYPE_CHECKING:
    from argparse import ArgumentParser, Namespace

class CmdLdlibpath(Cmd):  # export

    def __init__(self, parent: Parent) -> None:
        super().__init__(parent, 'ldlibpath', help = 'ldlibpath')

    def add_arguments(self, parser: ArgumentParser) -> None:
        super().add_arguments(parser)
        parser.add_argument(
            '-d',
            '--delimiter',
            nargs = '?',
            default = ':',
            help = 'Output words delimiter'
        )
        parser.add_argument('module', nargs = '*', help = 'Modules')

    async def _run(self, args: Namespace) -> None:
        deps = self.app.get_project_refs(
            args.module,
            ['pkg.requires.jw'],
            ['run', 'build', 'devel'],
            scope = Scope.Subtree,
            add_self = True,
            names_only = True,
        )
        out = []
        for m in deps:
            path = self.app.find_dir(m, ['/lib'])
            if path is not None:
                out.append(path)
        print(args.delimiter.join(out))