import uuid
from datetime import datetime

from pydantic import BaseModel, Field


class CreateChatRequest(BaseModel):
    title: str | None = None


class UpdateChatRequest(BaseModel):
    title: str | None = None
    is_archived: bool | None = None


class SendMessageRequest(BaseModel):
    content: str = Field(min_length=1, max_length=50000)


class ChatResponse(BaseModel):
    id: uuid.UUID
    user_id: uuid.UUID
    title: str
    skill_id: uuid.UUID | None
    is_archived: bool
    created_at: datetime
    updated_at: datetime

    model_config = {"from_attributes": True}


class ChatListResponse(BaseModel):
    chats: list[ChatResponse]


class MessageResponse(BaseModel):
    id: uuid.UUID
    chat_id: uuid.UUID
    role: str
    content: str
    metadata: dict | None = Field(None, alias="metadata_")
    created_at: datetime

    model_config = {"from_attributes": True, "populate_by_name": True}


class MessageListResponse(BaseModel):
    messages: list[MessageResponse]


class ContextFileResponse(BaseModel):
    id: uuid.UUID
    type: str
    content: str
    version: int
    updated_at: datetime

    model_config = {"from_attributes": True}


class UpdateContextRequest(BaseModel):
    content: str