"""
All WebSocket/SSE event types sent from Fellowship to connected members.
Every event is a Pydantic model serialized to JSON.
"""

from typing import Any, Literal
from pydantic import BaseModel


class HistoryEvent(BaseModel):
    type: Literal["history"] = "history"
    messages: list[dict[str, Any]]


class TurnStartEvent(BaseModel):
    type: Literal["turn_start"] = "turn_start"
    bot: str
    turn: int


class BotMessageEvent(BaseModel):
    type: Literal["bot_message"] = "bot_message"
    bot: str
    content: str
    turn: int


class TokenEvent(BaseModel):
    """Only emitted when stream_tokens is enabled."""
    type: Literal["token"] = "token"
    bot: str
    token: str
    turn: int


class TurnEndEvent(BaseModel):
    type: Literal["turn_end"] = "turn_end"
    bot: str
    turn: int
    tokens: int


class TalkerMessageEvent(BaseModel):
    type: Literal["talker_message"] = "talker_message"
    talker_id: str
    talker_name: str
    content: str
    turn: int


class MemberJoinedEvent(BaseModel):
    type: Literal["member_joined"] = "member_joined"
    role: Literal["talker", "observer"]


class MemberLeftEvent(BaseModel):
    type: Literal["member_left"] = "member_left"
    role: Literal["talker", "observer"]


class SessionPausedEvent(BaseModel):
    type: Literal["session_paused"] = "session_paused"


class SessionResumedEvent(BaseModel):
    type: Literal["session_resumed"] = "session_resumed"


class SessionEndEvent(BaseModel):
    type: Literal["session_end"] = "session_end"
    reason: Literal["max_turns", "max_time", "max_context", "orchestrator", "client_request"]


class ErrorEvent(BaseModel):
    type: Literal["error"] = "error"
    message: str


class DebugEvent(BaseModel):
    """Only emitted when debug mode is active."""
    type: Literal["debug"] = "debug"
    category: str
    data: dict[str, Any]