wip: без комментариев

.gitignore

@@ -39,3 +39,6 @@ venv/
 ENV/
 env.bak/
 venv.bak/
+
+# Sandbox
+sandbox

src/mind_reader/domain/__init__.py

@@ -0,0 +1,36 @@
+from .common import Player, PlayerRole
+from .context import SessionContext
+from .session import (
+    ArrowDirection,
+    CardData,
+    CardState,
+    GuesserMoveEvent,
+    NextStepRequestedEvent,
+    PlayerHelloEvent,
+    RevealSecretEvent,
+    SessionEvent,
+    SessionPhase,
+    SessionStats,
+    SetterMoveEvent,
+    StepData,
+    StepState,
+)
+
+__all__ = [
+    "Player",
+    "PlayerRole",
+    "SessionContext",
+    "ArrowDirection",
+    "CardData",
+    "CardState",
+    "GuesserMoveEvent",
+    "NextStepRequestedEvent",
+    "PlayerHelloEvent",
+    "RevealSecretEvent",
+    "SessionEvent",
+    "SessionPhase",
+    "SessionStats",
+    "SetterMoveEvent",
+    "StepData",
+    "StepState",
+]

src/mind_reader/domain/common.py

@@ -0,0 +1,13 @@
+from dataclasses import dataclass
+from enum import Enum, StrEnum, auto
+
+
+class PlayerRole(StrEnum):
+    SETTER = auto()
+    GUESSER = auto()
+
+
+@dataclass(frozen=True)
+class Player:
+    name: str
+    role: PlayerRole

src/mind_reader/domain/context.py

@@ -0,0 +1,16 @@
+from dataclasses import dataclass
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from ..input import SessionInput
+    from ..network import NetworkController
+    from ..state import SessionState
+    from ..ui.views import SessionPanel
+
+
+@dataclass(frozen=True)
+class SessionContext:
+    input: "SessionInput"
+    network: "NetworkController"
+    state: "SessionState"
+    view: "SessionPanel"

src/mind_reader/domain/session.py

@@ -0,0 +1,105 @@
+from dataclasses import dataclass
+from enum import Enum, StrEnum, auto
+from typing import Optional
+
+from .common import Player
+
+
+class ArrowDirection(StrEnum):
+    LEFT = auto()
+    RIGHT = auto()
+    HIDDEN = auto()
+
+
+class StepState(Enum):
+    WAITING_FOR_SETTER = auto()
+    WAITING_FOR_GUESSER = auto()
+    WAITING_FOR_CLOSURE = auto()
+    SESSION_FINISHED = auto()
+
+
+class SessionPhase(Enum):
+    INITIALIZING = auto()
+    WAITING_FOR_SETTER = auto()
+    WAITING_FOR_GUESSER = auto()
+    WAITING_FOR_REVEAL = auto()
+    CHECKOUT = auto()
+    FINISHED = auto()
+
+
+class CardState(Enum):
+    SETTER_NOT_SET = auto()
+    SETTER_WAITING = auto()
+    SETTER_HIDDEN = auto()
+    SETTER_REVEALED = auto()
+    GUESSER_DISABLED = auto()
+    GUESSER_WAITING = auto()
+    GUESSER_CORRECT = auto()
+    GUESSER_WRONG = auto()
+
+
+@dataclass(frozen=True)
+class CardData:
+    direction: Optional[ArrowDirection]
+    state: CardState
+
+
+@dataclass(frozen=True)
+class StepData:
+    index: int
+    setter: CardData
+    guesser: CardData
+
+
+@dataclass
+class SessionStats:
+    total: int
+    setted: int
+    correct: int
+    wrong: int
+    taken_time: float
+
+    @property
+    def accuracy(self) -> float:
+        accuracy: float
+        if self.total == 0:
+            accuracy = 0.0
+        accuracy = (self.correct / self.total) * 100
+        return round(accuracy, 1)
+
+
+@dataclass(frozen=True)
+class PlayerHelloEvent:
+    player: Player
+
+
+@dataclass(frozen=True)
+class SetterMoveEvent:
+    player: Player
+    direction: ArrowDirection
+
+
+@dataclass(frozen=True)
+class GuesserMoveEvent:
+    player: Player
+    direction: ArrowDirection
+
+
+@dataclass(frozen=True)
+class RevealSecretEvent:
+    player: Player
+    direction: ArrowDirection
+
+
+@dataclass(frozen=True)
+class NextStepRequestedEvent:
+    player: Player
+
+
+SessionEvent = (
+    PlayerHelloEvent
+    | SetterMoveEvent
+    | GuesserMoveEvent
+    | RevealSecretEvent
+    | NextStepRequestedEvent
+)

src/mind_reader/input/__init__.py

@@ -0,0 +1,3 @@
+from .session_input import SessionInput
+
+__all__ = ["SessionInput"]

src/mind_reader/input/session_input.py

@@ -0,0 +1,70 @@
+from ..domain import ArrowDirection, Player, PlayerRole
+from ..network import NetworkController, NetworkMessage, NetworkMessageKind
+
+
+class SessionInput:
+    def __init__(self, local_player: Player, network: NetworkController):
+        self._local_player = local_player
+        self._network = network
+
+    def start_session(self) -> None:
+        self._network.send(
+            NetworkMessage(NetworkMessageKind.SESSION_SESSION_STARTED, {})
+        )
+
+    def player_move(self, direction: ArrowDirection) -> None:
+        match self._local_player.role:
+            case PlayerRole.SETTER:
+                local_message = NetworkMessage(
+                    NetworkMessageKind.SESSION_PLAYER_MOVED,
+                    {
+                        "player": {
+                            "name": self._local_player.name,
+                            "role": self._local_player.role,
+                        },
+                        "arrow_direction": direction,
+                    },
+                )
+
+                network_message = NetworkMessage(
+                    NetworkMessageKind.SESSION_PLAYER_MOVED,
+                    {
+                        "player": {
+                            "name": self._local_player.name,
+                            "role": self._local_player.role,
+                        },
+                        "arrow_direction": ArrowDirection.HIDDEN,
+                    },
+                    local_message.id,
+                )
+
+                self._network.send_with_looback(local_message, network_message)
+
+            case PlayerRole.GUESSER:
+                self._network.send(
+                    NetworkMessage(
+                        NetworkMessageKind.SESSION_PLAYER_MOVED,
+                        {
+                            "player": {
+                                "name": self._local_player.name,
+                                "role": self._local_player.role,
+                            },
+                            "arrow_direction": direction,
+                        },
+                    )
+                )
+
+                self._network.send(
+                    NetworkMessage(
+                        NetworkMessageKind.SESSION_SECRET_REVEAL_REQUESTED,
+                        {
+                            "player": {
+                                "name": self._local_player.name,
+                                "role": self._local_player.role,
+                            },
+                        },
+                    )
+                )
+
+    def finish_session(self) -> None:
+        pass

src/mind_reader/network/__init__.py

@@ -1,7 +1,11 @@
-from .controller import NetworkController
-from .protocol import NetworkMesssage
+# from .controller import NetworkController
+# from .enums import NetworkMessageKind
+# from .handlers import SessionNetworkMessageHandler
+# from .message import NetworkMessage
 
-__all__ = [
-    "NetworkController",
-    "NetworkMesssage",
-]
+# __all__ = [
+#     "NetworkController",
+#     "NetworkMessageKind",
+#     "SessionNetworkMessageHandler",
+#     "NetworkMessage",
+# ]

src/mind_reader/network/controller.py

@@ -1,150 +1,98 @@
-import socket
-import struct
-import threading
-from typing import Callable, Optional
+import paho.mqtt.client as mqtt
+from paho.mqtt.enums import CallbackAPIVersion
 
-import wx
-
-from .protocol import NetworkMesssage
-
-OnMessageCallback = Callable[[NetworkMesssage], None]
-OnNoticeCallback = Callable[[str], None]
+from ..state_machines.session.events import SessionEvent
+from ..state_machines.session.machine import SessionStateMachine
+from .message import EventMapper, NetworkMessage, SessionMessageKind
 
 
-def receive_exact(sock: socket.socket, n: int) -> Optional[bytes]:
-    data = bytearray()
-
-    while len(data) < n:
-        packet = sock.recv(n - len(data))
-        if not packet:
-            return None
-        data.extend(packet)
-
-    return bytes(data)
-
-
-class NetworkController(threading.Thread):
+class NetworkController:
     def __init__(
         self,
-        on_message_callback: OnMessageCallback,
-        on_notice_callback: Optional[OnNoticeCallback] = None,
+        host: str,
+        port: int,
+        username: str,
+        password: str,
+        lobby,
+        session: SessionStateMachine,
     ):
-        super().__init__(daemon=True)
-        self.on_message_callback = on_message_callback
-        self.on_notice_callback = on_notice_callback
+        self._lobby_topic = "mind_reader/lobby"
+        self._session_topic = "mind_reader/session"
 
-        self.sock: Optional[socket.socket] = None
-        self.conn: Optional[socket.socket] = None
+        self._lobby = lobby
+        self._session = session
 
-        self.is_running: bool = False
-        self.is_server: bool = False
+        self._pending_loopbacks: dict[str, NetworkMessage] = {}
 
-    def serve(self, host: str = "0.0.0.0", port: int = 8994) -> None:
-        self.is_server = True
+        self._client = mqtt.Client(CallbackAPIVersion.VERSION2)
+        self._client.username_pw_set(username, password)
+        self._client.connect(host, port)
 
-        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-        self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
-        self.sock.bind((host, port))
-        self.sock.listen(1)
+        self._client.subscribe(self._lobby_topic)
+        self._client.subscribe(self._session_topic)
 
-        self.is_running = True
-        self.start()
+        self._client.message_callback_add(
+            self._lobby_topic, self._on_lobby_message
+        )
+        self._client.message_callback_add(
+            self._session_topic, self._on_session_message
+        )
 
-    def connect(self, host: str, port: int = 8994) -> bool:
-        self.is_server = False
-
-        try:
-            self.conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-            self.conn.connect((host, port))
-
-            self.is_running = True
-            self._notify("Connected to host")
-            self.start()
-            return True
-        except Exception as e:
-            self._notify(f"Connection failed: {e}")
-            return False
-
-    def send(self, event: str, payload: dict = {}) -> None:
-        if not self.conn or not self.is_running:
-            return
-
-        m = NetworkMesssage(event, payload)
-
-        try:
-            self.conn.sendall(m.encode())
-        except Exception as e:
-            self._notify(f"Send error: {e}")
-            self._close_active_connection()
-
-    def run(self) -> None:
-        HEADER_SIZE = 4
-
-        while self.is_running:
-            if self.is_server and self.sock and not self.conn:
-                self._notify("Waiting for peer to connect...")
-
-                try:
-                    self.conn, addr = self.sock.accept()
-                    self._notify(f"Peer connected from {addr[0]}:{addr[1]}")
-                except Exception:
-                    break
-
-            while self.is_running and self.conn:
-                try:
-                    header_bytes = receive_exact(self.conn, HEADER_SIZE)
-                    if not header_bytes:
-                        self._notify("Peer disconnected")
-                        break
-
-                    body_size = struct.unpack(">I", header_bytes)[0]
-
-                    body_bytes = receive_exact(self.conn, body_size)
-                    if not body_bytes:
-                        self._notify("Peer disconnected unexpectedly")
-                        break
-
-                    json_str = body_bytes.decode("utf-8")
-                    m = NetworkMesssage.from_json(json_str)
-
-                    wx.CallAfter(self.on_message_callback, m)
-
-                except Exception as e:
-                    self._notify(f"Read error: {e}")
-                    break
-
-            self._close_active_connection()
-
-            if not self.is_server:
-                break
-
-        self.stop()
-
-    def _close_active_connection(self) -> None:
-        if self.conn:
-            try:
-                self.conn.shutdown(socket.SHUT_RDWR)
-                self.conn.close()
-            except Exception:
-                pass
-            finally:
-                self.conn = None
-
-    def _notify(self, notice: str) -> None:
-        if self.on_notice_callback:
-            wx.CallAfter(self.on_notice_callback, notice)
+    def start(self) -> None:
+        self._client.loop_start()
 
     def stop(self) -> None:
-        self.is_running = False
+        self._client.loop_stop()
+        self._client.disconnect()
 
-        self._close_active_connection()
+    def send(self, network_message: NetworkMessage) -> None:
+        match network_message.kind:
+            case SessionMessageKind:
+                self._client.publish(
+                    self._session_topic, network_message.to_json()
+                )
 
-        if self.sock:
-            try:
-                self.sock.close()
-            except Exception:
-                pass
-            finally:
-                self.sock = None
+    def send_with_looback(
+        self,
+        local_message: NetworkMessage,
+        network_message: NetworkMessage,
+    ) -> None:
+        if local_message.id != network_message.id:
+            raise ValueError(
+                f"Mismatched message IDs in send_with_loopback: "
+                f"local_message.id='{local_message.id}' vs network_message.id='{network_message.id}'"
+            )
 
-        self._notify("Connection closed")
+        self._pending_loopbacks[local_message.id] = local_message
+        self.send(network_message)
+
+    def _check_loopbacks(self, id: str) -> NetworkMessage | None:
+        if id in self._pending_loopbacks:
+            return self._pending_loopbacks.pop(id)
+        return None
+
+    def _on_lobby_message(
+        self, client: mqtt.Client, userdata: None, message: mqtt.MQTTMessage
+    ) -> None:
+        json_str = message.payload.decode()
+        network_message = NetworkMessage.from_json(json_str)
+
+        loopback_message = self._check_loopbacks(network_message.id)
+        if loopback_message:
+            network_message = loopback_message
+
+        event = EventMapper.from_message(network_message)
+
+    def _on_session_message(
+        self, client: mqtt.Client, userdata: None, message: mqtt.MQTTMessage
+    ) -> None:
+        json_str = message.payload.decode()
+        network_message = NetworkMessage.from_json(json_str)
+
+        loopback_message = self._check_loopbacks(network_message.id)
+        if loopback_message:
+            network_message = loopback_message
+
+        event = EventMapper.from_message(network_message)
+        if isinstance(event, SessionEvent):
+            self._session.process(event)

src/mind_reader/network/message.py

@@ -0,0 +1,114 @@
+import json
+from dataclasses import asdict, dataclass, field
+from enum import StrEnum, auto
+from typing import Any
+
+from uuid_extensions import uuid7str
+
+from ..state_machines.lobby.domain import Player, PlayerRole
+from ..state_machines.session.domain import ArrowDirection
+from ..state_machines.session.events import (
+    GuesserMoveEvent,
+    NextStepRequestedEvent,
+    PlayerHelloEvent,
+    RevealSecretEvent,
+    SessionEvent,
+    SetterMoveEvent,
+)
+
+
+class SessionMessageKind(StrEnum):
+    PLAYER_HELLO = auto()
+    SETTER_MOVED = auto()
+    GUESSER_MOVED = auto()
+    SECRET_REVEALED = auto()
+    NEXT_STEP_REQUESTED = auto()
+
+
+NetworkMessageKind = SessionMessageKind
+Event = SessionEvent
+
+
+EVENT_TO_KIND_MAP: dict[type[Event], NetworkMessageKind] = {
+    PlayerHelloEvent: SessionMessageKind.PLAYER_HELLO,
+    SetterMoveEvent: SessionMessageKind.SETTER_MOVED,
+    GuesserMoveEvent: SessionMessageKind.GUESSER_MOVED,
+    RevealSecretEvent: SessionMessageKind.SECRET_REVEALED,
+    NextStepRequestedEvent: SessionMessageKind.NEXT_STEP_REQUESTED,
+}
+
+KIND_TO_EVENT_MAP = {
+    kind: event_cls for event_cls, kind in EVENT_TO_KIND_MAP.items()
+}
+
+
+@dataclass(frozen=True)
+class NetworkMessage:
+    kind: NetworkMessageKind
+    payload: dict[str, Any] = field(default_factory=dict)
+    id: str = field(default_factory=uuid7str)
+
+    @classmethod
+    def from_json(cls, json_str: str) -> "NetworkMessage":
+        data = json.loads(json_str)
+        return cls(
+            kind=NetworkMessageKind(data["kind"]),
+            payload=data.get("payload", {}),
+            id=data["id"],
+        )
+
+    def to_json(self) -> str:
+        data = asdict(self)
+        data["kind"] = self.kind.value
+        return json.dumps(data, ensure_ascii=False)
+
+
+class EventMapper:
+    @staticmethod
+    def to_message(event: Event) -> NetworkMessage:
+        event_type = type(event)
+        kind = EVENT_TO_KIND_MAP.get(event_type)
+
+        if not kind:
+            raise ValueError(f"Event {event_type} not registered")
+
+        return NetworkMessage(kind=kind, payload=asdict(event))
+
+    @staticmethod
+    def from_message(message: NetworkMessage) -> Event | None:
+        event_cls = KIND_TO_EVENT_MAP.get(message.kind)
+
+        if not event_cls:
+            return None
+
+        try:
+            payload = message.payload
+
+            player = Player(
+                name=payload["player"]["name"],
+                role=PlayerRole(payload["player"]["role"]),
+            )
+
+            match message.kind:
+                case NetworkMessageKind.PLAYER_HELLO:
+                    return PlayerHelloEvent(player=player)
+                case NetworkMessageKind.SETTER_MOVED:
+                    return SetterMoveEvent(
+                        player=player,
+                        direction=ArrowDirection(payload["direction"]),
+                    )
+                case NetworkMessageKind.GUESSER_MOVED:
+                    return GuesserMoveEvent(
+                        player=player,
+                        direction=ArrowDirection(payload["direction"]),
+                    )
+                case NetworkMessageKind.SECRET_REVEALED:
+                    return RevealSecretEvent(
+                        player=player,
+                        direction=ArrowDirection(payload["direction"]),
+                    )
+                case NetworkMessageKind.NEXT_STEP_REQUESTED:
+                    return NextStepRequestedEvent(player=player)
+
+        except (KeyError, ValueError, TypeError):
+            return None

src/mind_reader/network/protocol.py

@@ -1,46 +0,0 @@
-import itertools
-import json
-import struct
-from dataclasses import dataclass, field
-
-_id_generator = itertools.count(0)
-
-
-@dataclass
-class NetworkMesssage:
-    event: str
-    payload: dict[str, str] = field(default_factory=dict)
-    id: int = field(default_factory=lambda: next(_id_generator))
-    version: str = "1.0"
-
-    def to_json(self) -> str:
-        return json.dumps(
-            {
-                "version": self.version,
-                "id": self.id,
-                "event": self.event,
-                "payload": self.payload,
-            },
-            ensure_ascii=False,
-        )
-
-    @classmethod
-    def from_json(cls, json_str: str) -> "NetworkMesssage":
-        data = json.loads(json_str)
-        return cls(
-            event=data.get("event", "unknown"),
-            payload=data.get("payload", {}),
-            id=data.get("id", -1),
-            version=data.get("version", "unknown"),
-        )
-
-    def encode(self) -> bytes:
-        raw_bytes = self.to_json().encode("utf-8")
-        length_prefix = struct.pack(">I", len(raw_bytes))
-        return length_prefix + raw_bytes
-
-
-if __name__ == "__main__":
-    for i in range(10):
-        message = NetworkMesssage("none")
-        print(message.encode())

src/mind_reader/state/__init__.py

@@ -0,0 +1,3 @@
+from .session_state import SessionState
+
+__all__ = ["SessionState"]

src/mind_reader/state/session_state.py

@@ -0,0 +1,219 @@
+from wx.lib.pubsub import pub
+
+from mind_reader.domain import (
+    ArrowDirection,
+    CardData,
+    CardState,
+    Player,
+    PlayerRole,
+    StepData,
+    StepState,
+)
+
+
+class SessionState:
+    def __init__(
+        self,
+        local_player: Player,
+        remote_player: Player,
+        sequence_length: int = 20,
+    ):
+        self._local_player = local_player
+        self._remote_player = remote_player
+
+        self._sequence_length = sequence_length
+        self._setter_moves: list[ArrowDirection] = []
+        self._guesser_moves: list[ArrowDirection] = []
+
+        self._step_state: StepState = StepState.WAITING_FOR_SETTER
+
+    @property
+    def _completed_move_count(self):
+        return len(self._guesser_moves)
+
+    def _get_setter_card_state(self, index: int) -> CardState:
+        completed = self._completed_move_count
+
+        if index > completed:
+            return CardState.SETTER_NOT_SET
+
+        elif index == completed:
+            if self._local_player.role == PlayerRole.SETTER:
+                return CardState.SETTER_REVEALED
+            else:
+                return CardState.SETTER_HIDDEN
+
+        return CardState.SETTER_REVEALED
+
+    def _get_guesser_card_state(self, index: int) -> CardState:
+        completed = self._completed_move_count
+
+        if index > completed:
+            return CardState.GUESSER_DISABLED
+
+        elif index == completed:
+            if self._step_state == StepState.WAITING_FOR_GUESSER:
+                return CardState.GUESSER_WAITING
+            else:
+                return CardState.GUESSER_DISABLED
+
+        else:
+            setter_move = self._setter_moves[index]
+            guesser_move = self._guesser_moves[index]
+            if setter_move == guesser_move:
+                return CardState.GUESSER_CORRECT
+            else:
+                return CardState.GUESSER_WRONG
+
+    def start_session(self) -> None:
+        index = 0
+        pub.sendMessage(
+            "session.session_started",
+            step=StepData(
+                index=index,
+                setter=CardData(
+                    direction=None,
+                    state=self._get_setter_card_state(index),
+                ),
+                guesser=CardData(
+                    direction=None,
+                    state=self._get_guesser_card_state(index),
+                ),
+            ),
+        )
+
+    def setter_move(self, direction: ArrowDirection) -> bool:
+        if self._step_state != StepState.WAITING_FOR_SETTER:
+            return False
+
+        self._setter_moves.append(direction)
+        self._step_state = StepState.WAITING_FOR_GUESSER
+
+        index = len(self._setter_moves) - 1
+
+        pub.sendMessage(
+            "session.setter_moved",
+            step=StepData(
+                index=index,
+                setter=CardData(
+                    direction=direction,
+                    state=self._get_setter_card_state(index),
+                ),
+                guesser=CardData(
+                    direction=direction,
+                    state=self._get_guesser_card_state(index),
+                ),
+            ),
+        )
+        return True
+
+    def guesser_move(self, direction: ArrowDirection) -> bool:
+        if self._step_state != StepState.WAITING_FOR_GUESSER:
+            return False
+
+        self._guesser_moves.append(direction)
+        self._step_state = StepState.WAITING_FOR_CLOSURE
+        return True
+
+    def step_close(self, direction: ArrowDirection) -> bool:
+        if self._step_state != StepState.WAITING_FOR_CLOSURE:
+            return False
+
+        if self._completed_move_count < self._sequence_length:
+            self._step_state = StepState.WAITING_FOR_SETTER
+        else:
+            self._step_state = StepState.SESSION_FINISHED
+
+        if self._local_player.role == PlayerRole.GUESSER:
+            self._setter_moves[-1] = direction
+
+        index = len(self._guesser_moves) - 1
+
+        pub.sendMessage(
+            "session.guesser_moved",
+            step=StepData(
+                index=index,
+                setter=CardData(
+                    direction=self._setter_moves[index],
+                    state=self._get_setter_card_state(index),
+                ),
+                guesser=CardData(
+                    direction=self._guesser_moves[index],
+                    state=self._get_guesser_card_state(index),
+                ),
+            ),
+        )
+
+        next = index + 1
+
+        pub.sendMessage(
+            "session.step_closed",
+            step=StepData(
+                index=next,
+                setter=CardData(
+                    direction=None,
+                    state=self._get_setter_card_state(next),
+                ),
+                guesser=CardData(
+                    direction=None,
+                    state=self._get_guesser_card_state(next),
+                ),
+            ),
+        )
+
+        if self._step_state == StepState.SESSION_FINISHED:
+            pub.sendMessage("session.session_finished")
+
+        return True
+
+    def reveal_setter_move(self) -> ArrowDirection:
+        if self._local_player.role == PlayerRole.SETTER:
+            if self._step_state == StepState.WAITING_FOR_CLOSURE:
+                return self._setter_moves[-1]
+
+        return ArrowDirection.HIDDEN
+
+    def local_move(self, direction: ArrowDirection) -> bool:
+        if not self.can_local_move():
+            return False
+        if self._local_player.role == PlayerRole.SETTER:
+            return self.setter_move(direction)
+        else:
+            return self.guesser_move(direction)
+
+    def can_local_move(self) -> bool:
+        match self._step_state:
+            case StepState.WAITING_FOR_SETTER:
+                return self._local_player.role == PlayerRole.SETTER
+            case StepState.WAITING_FOR_GUESSER:
+                return self._local_player.role == PlayerRole.GUESSER
+            case StepState.WAITING_FOR_CLOSURE:
+                return False
+            case StepState.SESSION_FINISHED:
+                return False
+
+    @property
+    def setter_name(self) -> str:
+        if self._local_player.role == PlayerRole.SETTER:
+            return self._local_player.name
+        else:
+            return self._remote_player.name
+
+    @property
+    def guesser_name(self) -> str:
+        if self._local_player.role == PlayerRole.GUESSER:
+            return self._local_player.name
+        else:
+            return self._remote_player.name
+
+    @property
+    def sequence_length(self) -> int:
+        return self._sequence_length
+
+    @property
+    def local_player(self) -> Player:
+        return self._local_player
+
+    @property
+    def remote_player(self) -> Player:
+        return self._remote_player

src/mind_reader/state_machines/lobby/domain.py

@@ -0,0 +1,13 @@
+from dataclasses import dataclass
+from enum import StrEnum, auto
+
+
+class PlayerRole(StrEnum):
+    SETTER = auto()
+    GUESSER = auto()
+
+
+@dataclass(frozen=True)
+class Player:
+    name: str
+    role: PlayerRole

src/mind_reader/state_machines/session/domain.py

@@ -0,0 +1,27 @@
+from enum import Enum, StrEnum, auto
+
+
+class ArrowDirection(StrEnum):
+    LEFT = auto()
+    RIGHT = auto()
+    HIDDEN = auto()
+
+
+class SessionPhase(Enum):
+    INITIALIZING = auto()
+    WAITING_FOR_SETTER = auto()
+    WAITING_FOR_GUESSER = auto()
+    WAITING_FOR_REVEAL = auto()
+    CHECKOUT = auto()
+    FINISHED = auto()
+
+
+class CardState(Enum):
+    SETTER_NOT_SET = auto()
+    SETTER_WAITING = auto()
+    SETTER_HIDDEN = auto()
+    SETTER_REVEALED = auto()
+    GUESSER_DISABLED = auto()
+    GUESSER_WAITING = auto()
+    GUESSER_CORRECT = auto()
+    GUESSER_WRONG = auto()

src/mind_reader/state_machines/session/events.py

@@ -0,0 +1,41 @@
+from dataclasses import dataclass
+
+from ..lobby.domain import Player
+from ..session.domain import ArrowDirection
+
+
+@dataclass(frozen=True)
+class PlayerHelloEvent:
+    player: Player
+
+
+@dataclass(frozen=True)
+class SetterMoveEvent:
+    player: Player
+    direction: ArrowDirection
+
+
+@dataclass(frozen=True)
+class GuesserMoveEvent:
+    player: Player
+    direction: ArrowDirection
+
+
+@dataclass(frozen=True)
+class RevealSecretEvent:
+    player: Player
+    direction: ArrowDirection
+
+
+@dataclass(frozen=True)
+class NextStepRequestedEvent:
+    player: Player
+
+
+SessionEvent = (
+    PlayerHelloEvent
+    | SetterMoveEvent
+    | GuesserMoveEvent
+    | RevealSecretEvent
+    | NextStepRequestedEvent
+)

src/mind_reader/state_machines/session/machine.py

@@ -0,0 +1,181 @@
+from ..lobby.domain import Player, PlayerRole
+from ..session.domain import ArrowDirection, CardState, SessionPhase
+from ..session.events import (
+    GuesserMoveEvent,
+    NextStepRequestedEvent,
+    PlayerHelloEvent,
+    RevealSecretEvent,
+    SessionEvent,
+    SetterMoveEvent,
+)
+
+
+class SessionStateMachine:
+    def __init__(
+        self, setter: Player, guessers: set[Player], sequence_length: int = 20
+    ):
+        self._setter = setter
+        self._guessers = guessers
+
+        self._pending_players: set[Player] = set(guessers)
+        self._pending_players.add(setter)
+
+        self._sequence_length = sequence_length
+        self._setter_moves: list[ArrowDirection] = []
+        self._guessers_moves: dict[Player, list[ArrowDirection]] = {
+            player: [] for player in guessers
+        }
+
+        self._phase: SessionPhase = SessionPhase.INITIALIZING
+
+    def process(self, event: SessionEvent) -> bool:
+        match (self._phase, event):
+            case (SessionPhase.INITIALIZING, PlayerHelloEvent(player)):
+                self._pending_players.remove(player)
+                if not self._pending_players:
+                    self._phase = SessionPhase.WAITING_FOR_SETTER
+                    self._pending_players = {self._setter}
+                return True
+
+            case (
+                SessionPhase.WAITING_FOR_SETTER,
+                SetterMoveEvent(player, direction),
+            ):
+                self._pending_players.remove(player)
+                if not self._pending_players:
+                    self._setter_moves.append(direction)
+                    self._phase = SessionPhase.WAITING_FOR_GUESSER
+                    self._pending_players = set(self._guessers)
+                return True
+
+            case (
+                SessionPhase.WAITING_FOR_GUESSER,
+                GuesserMoveEvent(player, direction),
+            ):
+                self._guessers_moves[player].append(direction)
+                self._pending_players.remove(player)
+                if not self._pending_players:
+                    self._phase = SessionPhase.WAITING_FOR_REVEAL
+                    self._pending_players = {self._setter}
+                return True
+
+            case (
+                SessionPhase.WAITING_FOR_REVEAL,
+                RevealSecretEvent(player, direction),
+            ):
+                self._pending_players.remove(player)
+                if not self._pending_players:
+                    self._phase = SessionPhase.CHECKOUT
+                    setter_move_index = len(self._setter_moves) - 1
+                    self._setter_moves[setter_move_index] = direction
+                    self._pending_players = set(self._guessers)
+                return True
+
+            case (SessionPhase.CHECKOUT, NextStepRequestedEvent(player)):
+                self._pending_players.remove(player)
+                if not self._pending_players:
+                    if len(self._setter_moves) >= self._sequence_length:
+                        self._phase = SessionPhase.FINISHED
+                        self._pending_players.clear()
+                    else:
+                        self._phase = SessionPhase.WAITING_FOR_SETTER
+                        self._pending_players = {self._setter}
+                return True
+
+            case _:
+                return False
+
+    def get_card_state(self, player: Player, index: int) -> CardState:
+        match player.role:
+            case PlayerRole.SETTER:
+                return self._get_setter_card_state(index)
+            case PlayerRole.GUESSER:
+                return self._get_guesser_card_state(player, index)
+
+    def _get_setter_card_state(self, index: int) -> CardState:
+        current_index = self.get_setter_step_number() - 1
+
+        if index > current_index:
+            return CardState.SETTER_NOT_SET
+
+        elif index == current_index:
+            match self._phase:
+                case SessionPhase.INITIALIZING:
+                    return CardState.SETTER_NOT_SET
+                case SessionPhase.WAITING_FOR_SETTER:
+                    return CardState.SETTER_WAITING
+                case (
+                    SessionPhase.WAITING_FOR_GUESSER
+                    | SessionPhase.WAITING_FOR_REVEAL
+                ):
+                    if self._setter_moves[-1] == ArrowDirection.HIDDEN:
+                        return CardState.SETTER_HIDDEN
+                    else:
+                        return CardState.SETTER_REVEALED
+                case SessionPhase.CHECKOUT | SessionPhase.FINISHED:
+                    return CardState.SETTER_REVEALED
+
+        else:
+            return CardState.SETTER_REVEALED
+
+    def _get_guesser_card_state(self, player: Player, index: int) -> CardState:
+        def _check_direction(
+            self: SessionStateMachine, player: Player, index: int
+        ) -> CardState:
+            if self._setter_moves[index] == self._guessers_moves[player][index]:
+                return CardState.GUESSER_CORRECT
+            else:
+                return CardState.GUESSER_WRONG
+
+        current_index = self.get_guesser_step_number(player) - 1
+
+        if index > current_index:
+            return CardState.GUESSER_DISABLED
+
+        elif index == current_index:
+            match self._phase:
+                case (
+                    SessionPhase.INITIALIZING | SessionPhase.WAITING_FOR_SETTER
+                ):
+                    return CardState.GUESSER_DISABLED
+                case (
+                    SessionPhase.WAITING_FOR_GUESSER
+                    | SessionPhase.WAITING_FOR_REVEAL
+                ):
+                    return CardState.GUESSER_WAITING
+                case SessionPhase.CHECKOUT | SessionPhase.FINISHED:
+                    return _check_direction(self, player, index)
+
+        else:
+            return _check_direction(self, player, index)
+
+    def _get_step_number(self, enum) -> int:
+        return len(enum)
+
+    def get_setter_step_number(self) -> int:
+        return self._get_step_number(self._setter_moves)
+
+    def get_guesser_step_number(self, player: Player) -> int:
+        return self._get_step_number(self._guessers_moves[player])
+
+    def get_setter_move(self, index: int) -> ArrowDirection | None:
+        try:
+            return self._setter_moves[index]
+        except IndexError:
+            return None
+
+    def get_guesser_move(
+        self, player: Player, index: int
+    ) -> ArrowDirection | None:
+        try:
+            return self._guessers_moves[player][index]
+        except IndexError:
+            return None
+
+    def get_last_setter_move(self) -> ArrowDirection | None:
+        index = self.get_setter_step_number() - 1
+        return self.get_setter_move(index)
+
+    def get_last_guesser_move(self, player: Player) -> ArrowDirection | None:
+        index = self.get_guesser_step_number(player) - 1
+        return self.get_guesser_move(player, index)

src/mind_reader/ui/views/__init__.py

@@ -1,5 +1,4 @@
-from mind_reader.ui.views.lobby_view import LobbyPanel
+# from .lobby_view import LobbyPanel
+from .session_view import SessionPanel
 
-__all__ = [
-    "LobbyPanel",
-]
+__all__ = ["SessionPanel"]

src/mind_reader/ui/views/session_view.py

@@ -0,0 +1,379 @@
+import sys
+from dataclasses import dataclass
+from typing import Callable, Optional
+
+import wx
+from wx.lib.pubsub import pub
+
+from ...domain import ArrowDirection, CardState, SessionStats, StepData
+from ...input import SessionInput
+from ...state import SessionState
+
+
+@dataclass(frozen=True)
+class SetterCardColour:
+    NOT_SET = wx.Colour(82, 97, 107)
+    HIDDEN = wx.Colour(201, 214, 223)
+    REVEALED = wx.Colour(240, 245, 249)
+
+
+@dataclass(frozen=True)
+class GuesserCardColour:
+    DISABLED = wx.Colour(82, 97, 107)
+    WAITING = wx.Colour(201, 214, 223)
+    CORRECT = wx.Colour(76, 175, 80)
+    WRONG = wx.Colour(229, 115, 115)
+
+
+@dataclass(frozen=True)
+class ArrowSymbol:
+    LEFT: str = "←"
+    RIGHT: str = "→"
+    HIDDEN: str = "?"
+
+
+class Card(wx.Panel):
+    def __init__(self, parent, state: CardState):
+        super().__init__(parent, style=wx.BORDER_SIMPLE)
+        self._direction: Optional[ArrowDirection] = None
+        self._state = state
+        self._setup()
+        self._update()
+
+    def _setup(self):
+        self.SetMinSize(wx.Size(45, 75))
+
+        self.label = wx.StaticText(self, style=wx.ALIGN_CENTER)
+
+        font = self.label.GetFont()
+        font.SetPointSize(20)
+        self.label.SetFont(font)
+
+        sizer = wx.BoxSizer(wx.VERTICAL)
+        sizer.Add(self.label, 0, wx.EXPAND)
+
+        self.SetSizer(sizer)
+
+    def _update(self):
+        match self._state:
+            case CardState.SETTER_NOT_SET:
+                colour = SetterCardColour.NOT_SET
+                show_arrow = False
+
+            case CardState.SETTER_HIDDEN:
+                colour = SetterCardColour.HIDDEN
+                show_arrow = True
+
+            case CardState.SETTER_REVEALED:
+                colour = SetterCardColour.REVEALED
+                show_arrow = True
+
+            case CardState.GUESSER_DISABLED:
+                colour = GuesserCardColour.DISABLED
+                show_arrow = False
+
+            case CardState.GUESSER_WAITING:
+                colour = GuesserCardColour.WAITING
+                show_arrow = False
+
+            case CardState.GUESSER_CORRECT:
+                colour = GuesserCardColour.CORRECT
+                show_arrow = True
+
+            case CardState.GUESSER_WRONG:
+                colour = GuesserCardColour.WRONG
+                show_arrow = True
+
+        if show_arrow and self._direction:
+            match self._direction:
+                case ArrowDirection.LEFT:
+                    symbol = ArrowSymbol.LEFT
+
+                case ArrowDirection.RIGHT:
+                    symbol = ArrowSymbol.RIGHT
+
+                case ArrowDirection.HIDDEN:
+                    symbol = ArrowSymbol.HIDDEN
+
+            self.label.SetLabel(symbol)
+
+        else:
+            self.label.SetLabel("")
+
+        self.SetBackgroundColour(colour)
+
+        self.Layout()
+        self.Refresh()
+
+    def set(
+        self,
+        state: CardState,
+        direction: Optional[ArrowDirection] = None,
+    ) -> None:
+        self._state = state
+        self._direction = direction
+        self._update()
+
+
+class SessionPanel(wx.Panel):
+    def __init__(
+        self,
+        parent,
+        input: SessionInput,
+        setter_name: str,
+        guesser_name: str,
+        sequence_length: int,
+    ):
+        super().__init__(parent)
+
+        self._input = input
+
+        self._setter_name = setter_name
+        self._guesser_name = guesser_name
+        self._sequence_length = sequence_length
+
+        self._setter_sequence: list[Card] = []
+        self._guesser_sequence: list[Card] = []
+
+        self._statusbar = self._get_statusbar()
+        self._setup_statusbar()
+
+        self._setup()
+        self._fit_parent_frame()
+
+        pub.subscribe(self._on_session_started, "session.session_started")
+        pub.subscribe(self._on_setter_moved, "session.setter_moved")
+        pub.subscribe(self._on_guesser_moved, "session.guesser_moved")
+        pub.subscribe(self._on_step_closed, "session.step_closed")
+        pub.subscribe(self._on_session_finished, "session.session_finished")
+
+    def _setup(self) -> None:
+        main_sizer = wx.BoxSizer(wx.VERTICAL)
+
+        setter_sizer = self._create_sequence_section(
+            title=f"Загадывает: {self._setter_name}",
+            sequence=self._setter_sequence,
+            sequence_length=self._sequence_length,
+            initial_card_state=CardState.SETTER_NOT_SET,
+        )
+
+        guesser_sizer = self._create_sequence_section(
+            title=f"Угадывает: {self._guesser_name}",
+            sequence=self._guesser_sequence,
+            sequence_length=self._sequence_length,
+            initial_card_state=CardState.GUESSER_DISABLED,
+        )
+
+        controls_sizer = self._create_controls_sizer(
+            on_left=self._on_left_click,
+            on_right=self._on_right_click,
+        )
+
+        secondary_sizer = wx.BoxSizer(wx.VERTICAL)
+        secondary_sizer.Add(setter_sizer, 0, wx.EXPAND)
+        secondary_sizer.Add(guesser_sizer, 0, wx.EXPAND)
+        secondary_sizer.Add(
+            controls_sizer, 0, wx.ALIGN_CENTER | wx.TOP | wx.BOTTOM, 25
+        )
+
+        main_sizer.Add(secondary_sizer, 0, wx.LEFT | wx.ALL, 0)
+
+        self.SetSizer(main_sizer)
+
+    def _create_sequence_section(
+        self,
+        title: str,
+        sequence: list[Card],
+        sequence_length: int,
+        initial_card_state: CardState,
+    ) -> wx.Sizer:
+        section_sizer = wx.BoxSizer(wx.VERTICAL)
+        title_label = wx.StaticText(self, label=title)
+        cards_sizer = wx.BoxSizer(wx.HORIZONTAL)
+
+        for _ in range(sequence_length):
+            card = Card(self, initial_card_state)
+            cards_sizer.Add(card, 0, wx.ALL, 4)
+            sequence.append(card)
+
+        section_sizer.Add(title_label, 0, wx.LEFT | wx.TOP, 9)
+        section_sizer.Add(cards_sizer, 0, wx.ALL, 5)
+
+        return section_sizer
+
+    def _create_controls_sizer(
+        self,
+        on_left: Callable[[wx.CommandEvent], None],
+        on_right: Callable[[wx.CommandEvent], None],
+    ) -> wx.Sizer:
+        left = wx.Button(self, label=ArrowSymbol.LEFT, size=wx.Size(145, 55))
+        right = wx.Button(self, label=ArrowSymbol.RIGHT, size=wx.Size(145, 55))
+
+        font = left.GetFont()
+        font.SetPointSize(22)
+
+        left.SetFont(font)
+        right.SetFont(font)
+
+        left.Bind(wx.EVT_BUTTON, on_left)
+        right.Bind(wx.EVT_BUTTON, on_right)
+
+        controls_sizer = wx.BoxSizer(wx.HORIZONTAL)
+        controls_sizer.Add(left, 0, wx.RIGHT, 10)
+        controls_sizer.Add(right, 0, wx.LEFT, 10)
+
+        return controls_sizer
+
+    def _get_statusbar(self) -> Optional[wx.StatusBar]:
+        top_frame = self.GetTopLevelParent()
+
+        if isinstance(top_frame, wx.Frame):
+            statusbar = top_frame.GetStatusBar()
+            if not statusbar:
+                statusbar = top_frame.CreateStatusBar(1)
+            statusbar.SetFieldsCount(4)
+            return statusbar
+
+        return None
+
+    def _setup_statusbar(self) -> None:
+        if not self._statusbar:
+            return
+
+        message = " Ожидание начала игры... "
+        progress = f" Прогресс 0/{self._sequence_length} "
+        accuracy = " Точность 0.0% (0/0) "
+        taken_time = " Время 00:00 "
+
+        self._statusbar.SetStatusText(message, 0)
+        self._statusbar.SetStatusText(progress, 1)
+        self._statusbar.SetStatusText(accuracy, 2)
+        self._statusbar.SetStatusText(taken_time, 3)
+
+        self._autofit_statusbar([progress, accuracy, message])
+
+    def _autofit_statusbar(self, texts: list[str]) -> None:
+        if not self._statusbar:
+            return
+
+        dc = wx.ClientDC(self._statusbar)
+        width_1 = dc.GetTextExtent(texts[0]).width
+        width_2 = dc.GetTextExtent(texts[1]).width
+        width_3 = dc.GetTextExtent(texts[2]).width
+        self._statusbar.SetStatusWidths([-1, width_1, width_2, width_3])
+
+    def _fit_parent_frame(self) -> None:
+        top_frame = self.GetTopLevelParent()
+
+        if isinstance(top_frame, wx.Frame):
+            self.Layout()
+            best_size = self.GetBestSize()
+            min_size = top_frame.ClientToWindowSize(best_size)
+            top_frame.SetMinSize(min_size)
+            top_frame.Fit()
+
+    def _on_left_click(self, event: wx.CommandEvent) -> None:
+        self._handle_arrow_input(ArrowDirection.LEFT)
+
+    def _on_right_click(self, event: wx.CommandEvent) -> None:
+        self._handle_arrow_input(ArrowDirection.RIGHT)
+
+    def _handle_arrow_input(self, direction: ArrowDirection) -> None:
+        self._input.player_move(direction)
+
+    def _on_session_started(self, step: StepData) -> None:
+        self.update_setter_card(
+            step.index,
+            step.setter.state,
+            step.setter.direction,
+        )
+
+        self.update_guesser_card(
+            step.index,
+            step.guesser.state,
+            step.guesser.direction,
+        )
+
+    def _on_setter_moved(self, step: StepData) -> None:
+        self.update_setter_card(
+            step.index,
+            step.setter.state,
+            step.setter.direction,
+        )
+
+        self.update_guesser_card(
+            step.index,
+            step.guesser.state,
+            step.guesser.direction,
+        )
+
+    def _on_guesser_moved(self, step: StepData):
+        self.update_setter_card(
+            step.index,
+            step.setter.state,
+            step.setter.direction,
+        )
+
+        self.update_guesser_card(
+            step.index,
+            step.guesser.state,
+            step.guesser.direction,
+        )
+
+    def _on_step_closed(self, step: StepData):
+        self.update_setter_card(
+            step.index,
+            step.setter.state,
+            step.setter.direction,
+        )
+
+        self.update_guesser_card(
+            step.index,
+            step.guesser.state,
+            step.guesser.direction,
+        )
+
+    def _on_session_finished(self):
+        pass
+
+    def update_setter_card(
+        self,
+        index: int,
+        state: CardState,
+        direction: Optional[ArrowDirection] = None,
+    ) -> None:
+        self._setter_sequence[index].set(state, direction)
+
+    def update_guesser_card(
+        self,
+        index: int,
+        state: CardState,
+        direction: Optional[ArrowDirection] = None,
+    ) -> None:
+        self._guesser_sequence[index].set(state, direction)
+
+    def update_statusbar(
+        self,
+        message: Optional[str],
+        stats: SessionStats,
+    ):
+        if not self._statusbar:
+            return
+
+        if message is not None:
+            self._statusbar.SetStatusText(message, 0)
+
+        progress = f" Прогресс {stats.setted}/{stats.total} "
+        self._statusbar.SetStatusText(progress, 1)
+
+        accuracy = (
+            f" Точность {stats.accuracy}% ({stats.correct}/{stats.wrong}) "
+        )
+        self._statusbar.SetStatusText(accuracy, 2)
+
+        minutes = int(stats.taken_time) // 60
+        seconds = int(stats.taken_time) % 60
+        taken_time = f" Время {minutes:02d}:{seconds:02d} "
+        self._statusbar.SetStatusText(taken_time, 3)
+
+        self._autofit_statusbar([progress, accuracy, taken_time])