"""Tests for the bot CLI (app.bot_cli).

The CLI mirrors the Telegram bot's manual-trigger surface (Telegram
handlers /1, /2, /3) plus the operational ops (credit, transfer,
monitor-once). With no args, it drops into a stdlib TUI menu.

These tests mock app.bot_cli.CM_BOT_HAL so they never touch the database
or cm99.net. The HAL class is imported at module load (which is a pure
import — no env reads), so we can patch the symbol bound on app.bot_cli
without affecting other tests.
"""

import argparse
import contextlib
import io
import os
import sys
import unittest
from unittest import mock

import app.bot_cli as bot_cli


class ParserSanityTests(unittest.TestCase):
    def test_build_parser_returns_argument_parser(self):
        parser = bot_cli.build_parser()
        self.assertIsInstance(parser, argparse.ArgumentParser)

    def test_main_with_no_args_dispatches_to_interactive(self):
        # When invoked with no subcommand, main() should drop into the
        # TUI loop. We verify the dispatch by patching cmd_interactive to
        # a no-op recorder.
        with mock.patch.object(bot_cli, "cmd_interactive", return_value=0) as mocked:
            rc = bot_cli.main([])
        mocked.assert_called_once()
        self.assertEqual(rc, 0)


class CmdRegisterTests(unittest.TestCase):
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_prints_username_password_link(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.get_user_api.return_value = {
            "username": "13c1234",
            "password": "abc12345",
            "link": "https://example.com/r/foo",
        }
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_register(argparse.Namespace())
        text = out.getvalue()
        self.assertIn("Username: 13c1234", text)
        self.assertIn("Password: abc12345", text)
        self.assertIn("Link: https://example.com/r/foo", text)
        mock_hal.get_user_api.assert_called_once_with()

    def test_register_subparser_dispatches_to_cmd_register(self):
        parser = bot_cli.build_parser()
        args = parser.parse_args(["register"])
        self.assertIs(args.func, bot_cli.cmd_register)

    def test_get_acc_alias_dispatches_to_cmd_register(self):
        parser = bot_cli.build_parser()
        args = parser.parse_args(["get-acc"])
        self.assertIs(args.func, bot_cli.cmd_register)


class CmdSetPinTests(unittest.TestCase):
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_rejects_invalid_whatsapp_url(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.is_whatsapp_url.return_value = False
        with self.assertRaises(SystemExit) as cm:
            bot_cli.cmd_set_pin(argparse.Namespace(link="https://not-whatsapp.example/x"))
        self.assertEqual(cm.exception.code, 2)
        mock_hal.set_security_pin_api.assert_not_called()

    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_extracts_names_locally_and_succeeds(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.is_whatsapp_url.return_value = True
        mock_hal.get_whatsapp_link_username.return_value = ("t_user_42", "f_user_42")
        mock_hal.set_security_pin_api.return_value = True
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_set_pin(argparse.Namespace(link="https://chat.whatsapp.com/abc"))
        text = out.getvalue()
        self.assertIn("f_username=f_user_42", text)
        self.assertIn("t_username=t_user_42", text)
        mock_hal.set_security_pin_api.assert_called_once_with("https://chat.whatsapp.com/abc")

    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_falsy_set_security_pin_result_exits_nonzero(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.is_whatsapp_url.return_value = True
        mock_hal.get_whatsapp_link_username.return_value = ("t", "f")
        mock_hal.set_security_pin_api.return_value = False
        with self.assertRaises(SystemExit) as cm:
            bot_cli.cmd_set_pin(argparse.Namespace(link="https://chat.whatsapp.com/abc"))
        self.assertEqual(cm.exception.code, 1)

    def test_set_pin_subparser_dispatches(self):
        parser = bot_cli.build_parser()
        args = parser.parse_args(["set-pin", "https://chat.whatsapp.com/abc"])
        self.assertIs(args.func, bot_cli.cmd_set_pin)
        self.assertEqual(args.link, "https://chat.whatsapp.com/abc")


class CmdInsertUserTests(unittest.TestCase):
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_inserts_using_password_lookup_and_security_pin(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.get_user_pass_from_acc.return_value = "abc12345"
        mock_hal.security_pin = "999111"
        mock_hal.insert_user_to_table_user.return_value = True
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_insert_user(argparse.Namespace(f_username="13c1234", t_username="player_x"))
        self.assertIn("OK: inserted 13c1234 → player_x", out.getvalue())
        mock_hal.insert_user_to_table_user.assert_called_once_with({
            "f_username": "13c1234",
            "f_password": "abc12345",
            "t_username": "player_x",
            "t_password": "999111",
        })

    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_no_password_for_f_user_exits_2(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.get_user_pass_from_acc.return_value = None
        with self.assertRaises(SystemExit) as cm:
            bot_cli.cmd_insert_user(argparse.Namespace(f_username="missing", t_username="player_x"))
        self.assertEqual(cm.exception.code, 2)
        mock_hal.insert_user_to_table_user.assert_not_called()

    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_insert_failure_exits_1(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.get_user_pass_from_acc.return_value = "abc"
        mock_hal.security_pin = "000"
        mock_hal.insert_user_to_table_user.return_value = False
        with self.assertRaises(SystemExit) as cm:
            bot_cli.cmd_insert_user(argparse.Namespace(f_username="13c1234", t_username="player_x"))
        self.assertEqual(cm.exception.code, 1)

    def test_insert_user_subparser_dispatches(self):
        parser = bot_cli.build_parser()
        args = parser.parse_args(["insert-user", "13c1234", "player_x"])
        self.assertIs(args.func, bot_cli.cmd_insert_user)
        self.assertEqual(args.f_username, "13c1234")
        self.assertEqual(args.t_username, "player_x")


if __name__ == "__main__":
    unittest.main()