import aiohttp
import os
import requests
import time

from typing import AsyncGenerator

from dailyai.services.ai_services import TTSService


class ElevenLabsTTSService(TTSService):
    def __init__(self, api_key=None, voice_id=None, aiohttp_session:aiohttp.ClientSession=None):
        super().__init__()

        self.api_key = api_key or os.getenv("ELEVENLABS_API_KEY")
        self.voice_id = voice_id or os.getenv("ELEVENLABS_VOICE_ID")
        self.aiohttp_session = aiohttp_session or aiohttp.ClientSession()

    async def run_tts(self, sentence) -> AsyncGenerator[bytes, None]:
        url = f"https://api.elevenlabs.io/v1/text-to-speech/{self.voice_id}/stream"
        payload = {"text": sentence, "model_id": "eleven_turbo_v2"}
        querystring = {"output_format": "pcm_16000", "optimize_streaming_latency": 2}
        headers = {
            "xi-api-key": self.api_key,
            "Content-Type": "application/json",
        }
        async with self.aiohttp_session.post(
            url, json=payload, headers=headers, params=querystring
        ) as r:
            if r.status != 200:
                self.logger.error(
                    f"audio fetch status code: {r.status}, error: {r.text}"
                )
                return

            async for chunk in r.content:
                if chunk:
                    yield chunk