# deck-it - tests for obsclient
# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

import sys
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent.parent))

import base64
import hashlib
import unittest

import deckit.obsclient as oc


class Auth(unittest.TestCase):
    def test_matches_protocol_formula(self):
        pw, salt, challenge = "supersecret", "salty", "chall"
        step1 = base64.b64encode(hashlib.sha256((pw + salt).encode()).digest()).decode()
        expected = base64.b64encode(hashlib.sha256((step1 + challenge).encode()).digest()).decode()
        self.assertEqual(oc.auth_string(pw, salt, challenge), expected)
        self.assertNotEqual(oc.auth_string("other", salt, challenge), expected)


class Disconnected(unittest.TestCase):
    def test_request_raises_when_closed(self):
        with self.assertRaises(oc.ModuleError):
            oc.ObsClient(host="127.0.0.1", port=4455, password="").request("GetVersion")


class RecvJson(unittest.TestCase):
    def test_empty_reply_is_a_clear_error(self):
        c = oc.ObsClient()
        c.ws = type("W", (), {"recv": lambda self: ""})()
        with self.assertRaisesRegex(oc.ModuleError, "closed"):
            c._recv_json()

    def test_non_json_reply_is_a_clear_error(self):
        c = oc.ObsClient()
        c.ws = type("W", (), {"recv": lambda self: "HTTP/1.1 400"})()
        with self.assertRaisesRegex(oc.ModuleError, "non-JSON"):
            c._recv_json()


class RecvLoop(unittest.TestCase):
    def test_a_recv_timeout_does_not_end_the_loop(self):
        import websocket

        class FakeWS:
            calls = 0

            def recv(self):
                FakeWS.calls += 1
                if FakeWS.calls <= 3:
                    raise websocket.WebSocketTimeoutException("idle")
                raise RuntimeError("closed")

        c = oc.ObsClient()
        c.ws = FakeWS()
        c.connected = True
        c._recv_loop()
        # It kept calling recv past three idle timeouts; a timeout must not
        # look like a closed socket.
        self.assertEqual(FakeWS.calls, 4)


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