import sqlite3
import httpx
from app.shared.config import Settings


def generate_daily_summary(date: str, settings: Settings, db: sqlite3.Connection) -> None:
    rows = db.execute("""
        SELECT u.start_time, u.transcript, r.name as room_name, s.name as speaker_name
        FROM utterances u
        JOIN rooms r ON u.room_id = r.id
        LEFT JOIN speakers s ON u.speaker_id = s.id
        WHERE date(u.start_time) = ?
        ORDER BY u.start_time ASC
    """, (date,)).fetchall()

    if not rows:
        return

    lines = [
        f"[{r['room_name']} {r['start_time']}] {r['speaker_name'] or 'Unknown'}: {r['transcript']}"
        for r in rows
    ]
    context = "\n".join(lines)

    prompt = (
        f"Summarize the following household conversations from {date} in 2-4 sentences. "
        f"Focus on key decisions, activities, and topics discussed. Do not transcribe verbatim.\n\n"
        f"{context}"
    )

    resp = httpx.post(
        f"{settings.ollama_url}/api/chat",
        json={
            "model": settings.ollama_model,
            "messages": [{"role": "user", "content": prompt}],
            "stream": False,
        },
        timeout=120.0,
    )
    resp.raise_for_status()
    summary = resp.json()["message"]["content"]

    db.execute(
        "INSERT INTO daily_summaries (date, summary_text) VALUES (?,?) "
        "ON CONFLICT(date) DO UPDATE SET summary_text=?, generated_at=CURRENT_TIMESTAMP",
        (date, summary, summary),
    )
    db.commit()