"""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_prints_names_from_hal_return_dict(self, mock_hal_class):
        # set_security_pin_api now returns a dict on success and raises
        # on any failure path. cmd_set_pin reads names directly from the
        # dict instead of pre-fetching them via get_whatsapp_link_username.
        mock_hal = mock_hal_class.return_value
        mock_hal.is_whatsapp_url.return_value = True
        mock_hal.set_security_pin_api.return_value = {
            "f_username": "f_user_42",
            "t_username": "t_user_42",
        }
        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)
        # The local get_whatsapp_link_username call from the old workaround
        # is gone — the HAL resolves names internally.
        mock_hal.get_whatsapp_link_username.assert_not_called()
        mock_hal.set_security_pin_api.assert_called_once_with("https://chat.whatsapp.com/abc")

    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")


class CmdCreditTests(unittest.TestCase):
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_prints_credit(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.get_user_credit.return_value = 42.5
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_credit(argparse.Namespace(username="13c1234", password="abc"))
        self.assertIn("Credit: 42.5", out.getvalue())
        mock_hal.get_user_credit.assert_called_once_with("13c1234", "abc")

    def test_credit_subparser_dispatches(self):
        parser = bot_cli.build_parser()
        args = parser.parse_args(["credit", "13c1234", "abc"])
        self.assertIs(args.func, bot_cli.cmd_credit)


class CmdTransferTests(unittest.TestCase):
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_prints_transfer_result(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.transfer_credit_api.return_value = "Successfully transfer amount: 10.0 from 13c1234 to player_x"
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_transfer(argparse.Namespace(
                f_username="13c1234", f_password="abc",
                t_username="player_x", t_password="0000",
            ))
        self.assertIn("Successfully transfer", out.getvalue())
        mock_hal.transfer_credit_api.assert_called_once_with("13c1234", "abc", "player_x", "0000")

    def test_transfer_subparser_dispatches(self):
        parser = bot_cli.build_parser()
        args = parser.parse_args(["transfer", "13c1234", "abc", "player_x", "0000"])
        self.assertIs(args.func, bot_cli.cmd_transfer)


class CmdMonitorOnceTests(unittest.TestCase):
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_does_nothing_when_already_at_target(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.get_all_available_acc.return_value = [{"username": f"u{i}"} for i in range(20)]
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_monitor_once(argparse.Namespace(target=20))
        text = out.getvalue()
        self.assertIn("Available accounts: 20", text)
        self.assertIn("Already at target", text)
        mock_hal.create_new_acc.assert_not_called()

    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_creates_accounts_until_target(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.get_all_available_acc.return_value = [{"username": "u1"}, {"username": "u2"}]
        mock_hal.create_new_acc.side_effect = [
            {"username": "u3", "password": "p3", "link": "l3"},
            {"username": "u4", "password": "p4", "link": "l4"},
            {"username": "u5", "password": "p5", "link": "l5"},
        ]
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_monitor_once(argparse.Namespace(target=5))
        text = out.getvalue()
        self.assertEqual(mock_hal.create_new_acc.call_count, 3)
        self.assertIn("Created: u3", text)
        self.assertIn("Created: u4", text)
        self.assertIn("Created: u5", text)

    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_create_failure_exits_1(self, mock_hal_class):
        mock_hal = mock_hal_class.return_value
        mock_hal.get_all_available_acc.return_value = []
        mock_hal.create_new_acc.side_effect = RuntimeError("fail login")
        with self.assertRaises(SystemExit) as cm:
            bot_cli.cmd_monitor_once(argparse.Namespace(target=1))
        self.assertEqual(cm.exception.code, 1)

    def test_monitor_once_subparser_dispatches(self):
        parser = bot_cli.build_parser()
        args = parser.parse_args(["monitor-once", "--target", "7"])
        self.assertIs(args.func, bot_cli.cmd_monitor_once)
        self.assertEqual(args.target, 7)

    def test_monitor_alias_dispatches(self):
        parser = bot_cli.build_parser()
        args = parser.parse_args(["monitor"])
        self.assertIs(args.func, bot_cli.cmd_monitor_once)
        self.assertEqual(args.target, 20)


class CmdInteractiveTests(unittest.TestCase):
    @mock.patch("builtins.input", side_effect=["q"])
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_q_exits_cleanly(self, mock_hal_class, mock_input):
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_interactive(argparse.Namespace())
        self.assertIn("CM Bot CLI", out.getvalue())

    @mock.patch("builtins.input", side_effect=["", "q"])
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_blank_line_continues_loop(self, mock_hal_class, mock_input):
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_interactive(argparse.Namespace())
        self.assertGreaterEqual(out.getvalue().count("Register / get next account"), 2)

    @mock.patch("builtins.input", side_effect=EOFError)
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_eof_exits_cleanly(self, mock_hal_class, mock_input):
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_interactive(argparse.Namespace())
        self.assertIn("CM Bot CLI", out.getvalue())

    @mock.patch("builtins.input", side_effect=["1", "q"])
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_alias_1_dispatches_to_register(self, mock_hal_class, mock_input):
        mock_hal = mock_hal_class.return_value
        mock_hal.get_user_api.return_value = {
            "username": "u", "password": "p", "link": "l",
        }
        out = io.StringIO()
        with contextlib.redirect_stdout(out):
            bot_cli.cmd_interactive(argparse.Namespace())
        self.assertIn("Username: u", out.getvalue())
        mock_hal.get_user_api.assert_called_once_with()

    @mock.patch("builtins.input", side_effect=["nonsense", "q"])
    @mock.patch.object(bot_cli, "CM_BOT_HAL")
    def test_unknown_subcommand_keeps_loop_alive(self, mock_hal_class, mock_input):
        out = io.StringIO()
        err = io.StringIO()
        with contextlib.redirect_stdout(out), contextlib.redirect_stderr(err):
            bot_cli.cmd_interactive(argparse.Namespace())
        self.assertIn("CM Bot CLI", out.getvalue())


class CreateAppFactoryTests(unittest.TestCase):
    """The gunicorn entrypoint loads `app.cm_api:create_app()`. The factory
    must exist as a module-level callable that returns the Flask app
    object — not the CM_API wrapper class."""

    def test_create_app_returns_flask_instance(self):
        from flask import Flask
        from app.cm_api import create_app

        wsgi = create_app()
        self.assertIsInstance(wsgi, Flask)

    def test_create_app_registers_acc_route(self):
        from app.cm_api import create_app
        wsgi = create_app()
        rules = {r.rule for r in wsgi.url_map.iter_rules()}
        self.assertIn("/acc/", rules)


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