"""Small admin CLI:  python -m app.admin list | passwd <user> | delete <user>"""
import getpass
import sys

from . import auth
from .main import db


def main(argv):
    if not argv:
        print(__doc__)
        return 1
    cmd = argv[0]
    with db() as con:
        if cmd == "list":
            for r in con.execute("SELECT username, created FROM users ORDER BY id"):
                print(r["username"])
        elif cmd == "passwd" and len(argv) == 2:
            pw = getpass.getpass("New password: ")
            if len(pw) < auth.MIN_PASSWORD:
                print(f"Password must have at least {auth.MIN_PASSWORD} characters.")
                return 1
            cur = con.execute("UPDATE users SET pw_hash=? WHERE username=?", (auth.hash_password(pw), argv[1]))
            if not cur.rowcount:
                print("No such user.")
                return 1
            con.execute("DELETE FROM sessions WHERE user_id=(SELECT id FROM users WHERE username=?)", (argv[1],))
            print("Password changed, user logged out everywhere.")
        elif cmd == "delete" and len(argv) == 2:
            row = con.execute("SELECT id FROM users WHERE username=?", (argv[1],)).fetchone()
            if not row:
                print("No such user.")
                return 1
            con.execute("DELETE FROM sessions WHERE user_id=?", (row["id"],))
            con.execute("DELETE FROM shares WHERE user_id=?", (row["id"],))
            con.execute("DELETE FROM lobby_members WHERE user_id=? OR lobby_id IN (SELECT id FROM lobbies WHERE owner_id=?)", (row["id"], row["id"]))
            con.execute("DELETE FROM lobbies WHERE owner_id=?", (row["id"],))
            con.execute("DELETE FROM users WHERE id=?", (row["id"],))
            print("User deleted. Their lobbies are removed; their characters and presets stay on the server without an owner.")
        else:
            print(__doc__)
            return 1
    return 0


if __name__ == "__main__":
    sys.exit(main(sys.argv[1:]))