from datetime import datetime
from typing import Optional, List
from pydantic import BaseModel, Field


class BlockerCreate(BaseModel):
    reason: str = Field(..., min_length=1, max_length=2000)


class BlockerResolve(BaseModel):
    resolution_note: str = Field(..., min_length=1, max_length=2000)


class BlockerUserInfo(BaseModel):
    id: str
    name: str
    email: str

    class Config:
        from_attributes = True


class BlockerResponse(BaseModel):
    id: str
    task_id: str
    reason: str
    resolution_note: Optional[str]
    created_at: datetime
    resolved_at: Optional[datetime]
    reporter: BlockerUserInfo
    resolver: Optional[BlockerUserInfo]

    class Config:
        from_attributes = True


class BlockerListResponse(BaseModel):
    blockers: List[BlockerResponse]
    total: int