from fastapi import FastAPI, Header, HTTPException
from pydantic import BaseModel

from app.config import settings
from app.discord import send_to_discord
from app.summarizer import summarize
from app.transcript import extract_video_id, fetch_transcript

app = FastAPI(title="News Summary Bot")


class SummarizeRequest(BaseModel):
    video_url: str
    title: str = ""


@app.post("/api/news/summarize")
async def summarize_video(
    req: SummarizeRequest,
    x_api_secret: str = Header(default=""),
):
    if settings.api_secret and x_api_secret != settings.api_secret:
        raise HTTPException(status_code=401, detail="Unauthorized")

    video_id = extract_video_id(req.video_url)
    transcript = fetch_transcript(video_id)
    title = req.title or video_id
    summary = summarize(transcript, title)
    await send_to_discord(title, req.video_url, summary)

    return {"status": "ok", "title": title, "summary_length": len(summary)}


@app.get("/api/news/health")
async def health():
    return {"status": "ok"}