from datetime import datetime
from typing import TYPE_CHECKING

from pydantic import BaseModel

if TYPE_CHECKING:
    from app.db.models import Session as SessionModel


class SessionCreateRequest(BaseModel):
    app_id: str
    user_id: str
    channel_type: str = "web"
    title: str | None = None
    runtime_target_type: str | None = None
    runtime_target_id: str | None = None
    runtime_target_config_id: str | None = None


class SessionListRequest(BaseModel):
    app_id: str | None = None


class SessionDetailRequest(BaseModel):
    session_id: str


class SessionResponse(BaseModel):
    id: str
    app_id: str
    user_id: str
    channel_type: str
    session_status: str
    title: str | None = None
    runtime_target_type: str | None = None
    runtime_target_id: str | None = None
    runtime_target_config_id: str | None = None
    started_time: datetime | None = None
    last_active_time: datetime | None = None
    created_time: datetime

    @classmethod
    def from_entity(cls, entity: "SessionModel") -> "SessionResponse":
        return cls.model_validate(entity, from_attributes=True)