"""Pydantic schemas for RecipeTask and RecipeSubtask operations."""
from typing import Any, Optional

from pydantic import BaseModel, ConfigDict, Field


class SubtaskCreate(BaseModel):
    """Schema for creating a subtask."""
    marker_number: int = Field(..., ge=1)
    description: str = Field(..., min_length=1, max_length=500)
    measurement_type: Optional[str] = Field(None, max_length=100)
    nominal: Optional[float] = None
    utl: Optional[float] = None
    uwl: Optional[float] = None
    lwl: Optional[float] = None
    ltl: Optional[float] = None
    unit: str = Field("mm", max_length=20)


class SubtaskUpdate(BaseModel):
    """Schema for updating a subtask."""
    description: Optional[str] = Field(None, min_length=1, max_length=500)
    measurement_type: Optional[str] = Field(None, max_length=100)
    nominal: Optional[float] = None
    utl: Optional[float] = None
    uwl: Optional[float] = None
    lwl: Optional[float] = None
    ltl: Optional[float] = None
    unit: Optional[str] = Field(None, max_length=20)


class SubtaskResponse(BaseModel):
    """Schema for subtask response."""
    model_config = ConfigDict(from_attributes=True)

    id: int
    task_id: int
    marker_number: int
    description: str
    measurement_type: Optional[str] = None
    nominal: Optional[float] = None
    utl: Optional[float] = None
    uwl: Optional[float] = None
    lwl: Optional[float] = None
    ltl: Optional[float] = None
    unit: str


class TaskCreate(BaseModel):
    """Schema for creating a task."""
    title: str = Field(..., min_length=1, max_length=255)
    directive: Optional[str] = None
    description: Optional[str] = None
    file_type: Optional[str] = Field(None, pattern="^(image|pdf)$")
    annotations_json: Optional[dict[str, Any]] = None
    subtasks: list[SubtaskCreate] = []


class TaskUpdate(BaseModel):
    """Schema for updating a task."""
    title: Optional[str] = Field(None, min_length=1, max_length=255)
    directive: Optional[str] = None
    description: Optional[str] = None
    annotations_json: Optional[dict[str, Any]] = None


class TaskResponse(BaseModel):
    """Schema for task response."""
    model_config = ConfigDict(from_attributes=True)

    id: int
    version_id: int
    order_index: int
    title: str
    directive: Optional[str] = None
    description: Optional[str] = None
    file_path: Optional[str] = None
    file_type: Optional[str] = None
    annotations_json: Optional[dict[str, Any]] = None
    subtasks: list[SubtaskResponse] = []


class TaskReorderRequest(BaseModel):
    """Schema for reordering tasks."""
    task_ids: list[int] = Field(..., min_length=1)