from __future__ import annotations

from typing import TypedDict, List, Dict, Any
from pydantic import BaseModel, Field


class ResearchSnippet(TypedDict):
    title: str
    url: str
    snippet: str


class AgentState(TypedDict, total=False):
    topic: str
    mode: str
    research_snippets: List[ResearchSnippet]
    outline: List[str]
    draft: str
    revised_draft: str
    final_output: str
    meta: Dict[str, Any]


class GenerateRequest(BaseModel):
    topic: str = Field(..., description="Topic to research and write about.")
    mode: str = Field(
        "blog",
        description="Output mode: 'blog', 'research_summary', or 'linkedin_post'.",
    )


class GenerateResponse(BaseModel):
    topic: str
    mode: str
    outline: List[str]
    draft: str
    revised_draft: str
    final_output: str
    meta: Dict[str, Any] = Field(default_factory=dict)