import sqlite3
from fastapi import APIRouter
from pydantic import BaseModel


class CreateSpeakerRequest(BaseModel):
    name: str


def make_router(settings, db_factory):
    router = APIRouter(prefix="/api/speakers")

    @router.get("")
    def list_speakers():
        db: sqlite3.Connection = db_factory()
        rows = db.execute("""
            SELECT s.id, s.name, s.created_at,
                   COUNT(u.id) as utterance_count
            FROM speakers s
            LEFT JOIN utterances u ON u.speaker_id = s.id
            GROUP BY s.id
            ORDER BY s.name
        """).fetchall()
        return [dict(r) for r in rows]

    @router.post("")
    def create_speaker(body: CreateSpeakerRequest):
        db: sqlite3.Connection = db_factory()
        cur = db.execute("INSERT INTO speakers (name) VALUES (?)", (body.name,))
        db.commit()
        row = db.execute("SELECT * FROM speakers WHERE id=?", (cur.lastrowid,)).fetchone()
        return dict(row)

    return router