#!/usr/bin/env python3

"""
matrix-redact: Delete all messages and media a user has sent in a matrix room.
"""

import asyncio
import argparse
import getpass
import sys
import subprocess
from nio import(
        AsyncClient,
        MatrixRoom,
        LoginResponse,
        responses
)
from typing import Optional


# TODO: select_room
async def select_room(client: AsyncClient, sync_response) -> MatrixRoom:
    return None

async def client_login() -> Optional[AsyncClient]:
    uid = input("Full user ID (eg. @user:matrix.server.com): ")
    upass = getpass.getpass(f"Enter the password for {uid}: ")
    user, hserv = uid[1:].split(':', 1)
    client = AsyncClient(f"https://{hserv}", uid)

    if not isinstance(await client.login(upass), LoginResponse):
        print("could not login, returning None")
        return None
    print("login was successful, returning client.")
    return client

# TODO: redact_room
async def redact_room() -> None:
    # TODO: ensure user is 100% sure (verify correct room, etc.). This is a permanent action
    return None

async def main(args) -> None:
    client = None

    try:
        client = await client_login()
        if not client:
            print("Could not login.")
            sys.exit(1)

        sync_resp = await client.sync(timeout=30000, full_state=True)
        room = select_room(client, sync_resp)

    except Exception as e:
        print(f"Error: {e}")
    finally:
        if client:
            print("logging out.")
            await client.logout()
            await client.close()

if __name__ == "__main__":
    parser = argparse.ArgumentParser(
            description="matrix-mcnt: Matrix Unread Message Count"
    )

    asyncio.run(main(parser.parse_args()))