from datetime import date, datetime, time
from pydantic import BaseModel
from app.schemas.schedule import ScheduleBlockOut
from app.schemas.child import ChildOut


class SessionStart(BaseModel):
    child_id: int
    template_id: int | None = None
    session_date: date | None = None  # defaults to today


class TimerAction(BaseModel):
    event_type: str  # start | pause | resume | complete | skip
    block_id: int | None = None


class TimerEventOut(BaseModel):
    id: int
    block_id: int | None
    event_type: str
    occurred_at: datetime

    model_config = {"from_attributes": True}


class DailySessionOut(BaseModel):
    id: int
    child_id: int
    template_id: int | None
    session_date: date
    is_active: bool
    current_block_id: int | None
    current_block: ScheduleBlockOut | None = None

    model_config = {"from_attributes": True}


class DashboardSnapshot(BaseModel):
    """Public TV dashboard payload — no auth required."""
    session: DailySessionOut | None
    child: ChildOut
    blocks: list[ScheduleBlockOut] = []
    completed_block_ids: list[int] = []
    block_elapsed_seconds: int = 0  # seconds already elapsed for the current block
    is_paused: bool = False          # whether the current block's timer is paused
    day_start_time: time | None = None
    day_end_time: time | None = None