from datetime import datetime
from typing import Optional, Any
from uuid import UUID
from pydantic import BaseModel, Field


class TreeBase(BaseModel):
    name: str = Field(..., min_length=1, max_length=255)
    description: Optional[str] = None
    category: Optional[str] = Field(None, max_length=100)


class TreeCreate(TreeBase):
    tree_structure: dict[str, Any] = Field(..., description="The decision tree structure in JSON format")


class TreeUpdate(BaseModel):
    name: Optional[str] = Field(None, min_length=1, max_length=255)
    description: Optional[str] = None
    category: Optional[str] = Field(None, max_length=100)
    tree_structure: Optional[dict[str, Any]] = None
    is_active: Optional[bool] = None


class TreeResponse(TreeBase):
    id: UUID
    tree_structure: dict[str, Any]
    author_id: Optional[UUID] = None
    team_id: Optional[UUID] = None
    is_active: bool
    version: int
    created_at: datetime
    updated_at: datetime
    usage_count: int

    class Config:
        from_attributes = True


class TreeListResponse(BaseModel):
    id: UUID
    name: str
    description: Optional[str] = None
    category: Optional[str] = None
    is_active: bool
    version: int
    usage_count: int
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True