"""
The shell for PyNVOS
Version: 0.1.0-main1
"""
import importlib
import os
import cmd

# from ..sys.krnl import Kernel
print(__name__)
class shell(cmd.Cmd):
    intro = "Shell started, PyNVOS 0.1.1-main1"
    prompt = "shell-0.1.0$ "
    file = None
    krnl = importlib.import_module(".jail_mgr", "vfs.sys")
    kernel = krnl.Kernel()
    print(str(kernel) + " " + str(type(kernel)))

    def do_cd(self, args):
        """Changes directory"""
        args = shell.kernel.fs(args)
        os.chdir(args)

    def do_exec(self, args):
        """Allows you to execute a file"""
        # Apps in /bin should be allowed to launch without first adding /bin/ or ./, just the name of the executable
        # So for ledit it should be just 'ledit' and not /bin/ledit.py or ./ledit.py
        bins_in_bin = os.listdir(shell.kernel.fs("/bin"))
        apps_strip = []
        for apps in bins_in_bin:
            if apps.endswith(".py"):
                apps_strip.append(apps.strip(".py"))
        if args in apps_strip:
            shell.kernel.run_program(f"/bin/{args}.py")
        else:
            shell.kernel.run_program(args)

    def do_ls(self, none):
        """Lists the content of a directory"""
        os.listdir(os.getcwd())

    def postloop(self):
        pass


if __name__ == '<run_path>':
    shell().cmdloop()
if __name__ == '__main__':
    print("The shell can't be ran as a standalone program and must be ran in conjunction with the kernel.")
    input("Press Enter to continue...")
    exit(-1)