"""API schemas (Pydantic) for BreakPeriod.

Schemas validate request bodies and shape responses. Separate from domain entities
so the wire format can evolve independently.
"""

from datetime import date, datetime
from uuid import UUID

from pydantic import BaseModel, Field

from app.entities.break_period import BreakPeriod


class BreakPeriodCreate(BaseModel):
    workspace_id: UUID
    name: str = Field(min_length=1, max_length=255)
    start_date: date
    end_date: date
    target_weeks: int = Field(ge=1, le=52)


class BreakPeriodUpdate(BaseModel):
    """Full replacement — all fields required (PUT semantics). Partial updates are not supported."""

    name: str = Field(min_length=1, max_length=255)
    start_date: date
    end_date: date
    target_weeks: int = Field(ge=1, le=52)


class BreakPeriodResponse(BaseModel):
    id: UUID
    workspace_id: UUID
    name: str
    start_date: date
    end_date: date
    target_weeks: int
    created_at: datetime | None
    updated_at: datetime | None

    @classmethod
    def from_entity(cls, entity: BreakPeriod) -> "BreakPeriodResponse":
        return cls(
            id=entity.id,
            workspace_id=entity.workspace_id,
            name=entity.name,
            start_date=entity.start_date,
            end_date=entity.end_date,
            target_weeks=entity.target_weeks,
            created_at=entity.created_at,
            updated_at=entity.updated_at,
        )