import json
import unittest
from threading import Thread
from urllib.request import Request, urlopen

from texas_holdem import server as poker_server
from texas_holdem.service import GameManager


class ServerTests(unittest.TestCase):
    def setUp(self) -> None:
        self.previous_manager = poker_server.MANAGER
        poker_server.MANAGER = GameManager()
        self.server = poker_server.create_server("127.0.0.1", 0)
        self.thread = Thread(target=self.server.serve_forever, daemon=True)
        self.thread.start()
        host, port = self.server.server_address
        self.base_url = f"http://{host}:{port}"

    def tearDown(self) -> None:
        self.server.shutdown()
        self.server.server_close()
        self.thread.join(timeout=2)
        poker_server.MANAGER = self.previous_manager

    def request_json(
        self,
        method: str,
        path: str,
        payload: dict[str, object] | None = None,
    ) -> dict[str, object]:
        data = None
        headers = {}
        if payload is not None:
            data = json.dumps(payload).encode("utf-8")
            headers["Content-Type"] = "application/json"
        request = Request(
            f"{self.base_url}{path}",
            data=data,
            headers=headers,
            method=method,
        )
        with urlopen(request, timeout=5) as response:
            return json.loads(response.read().decode("utf-8"))

    def test_get_hand_route_returns_expanded_hand_summary(self) -> None:
        self.request_json(
            "POST",
            "/game",
            {
                "game_id": "route-demo",
                "seed": 17,
                "starting_stack": 200,
                "small_blind": 5,
                "big_blind": 10,
                "players": [
                    {"id": "a", "type": "calling"},
                    {"id": "b", "type": "calling"},
                ],
            },
        )
        self.request_json("POST", "/game/route-demo/hands", {"count": 1})

        hand = self.request_json("GET", "/game/route-demo/hands/1")
        game = self.request_json("GET", "/game/route-demo")

        self.assertEqual(hand["hand_number"], 1)
        self.assertEqual(set(hand["hole_cards"]), {"a", "b"})
        self.assertEqual(hand["starting_stacks"], {"a": 200, "b": 200})
        self.assertIn("ending_stacks", hand)
        self.assertIn("pot_contributions", hand)
        self.assertEqual(game["hands"][0], hand)


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