# Copyright (C) 2024 Intel Corporation
# SPDX-License-Identifier: Apache-2.0

import asyncio
import base64
import os

from comps import AudioQnAGateway, MicroService, ServiceOrchestrator, ServiceType

MEGA_SERVICE_HOST_IP = os.getenv("MEGA_SERVICE_HOST_IP", "0.0.0.0")
MEGA_SERVICE_PORT = int(os.getenv("MEGA_SERVICE_PORT", 8888))

WHISPER_SERVER_HOST_IP = os.getenv("WHISPER_SERVER_HOST_IP", "0.0.0.0")
WHISPER_SERVER_PORT = int(os.getenv("WHISPER_SERVER_PORT", 7066))
GPT_SOVITS_SERVER_HOST_IP = os.getenv("GPT_SOVITS_SERVER_HOST_IP", "0.0.0.0")
GPT_SOVITS_SERVER_PORT = int(os.getenv("GPT_SOVITS_SERVER_PORT", 9088))
LLM_SERVER_HOST_IP = os.getenv("LLM_SERVER_HOST_IP", "0.0.0.0")
LLM_SERVER_PORT = int(os.getenv("LLM_SERVER_PORT", 8888))


def align_inputs(self, inputs, cur_node, runtime_graph, llm_parameters_dict, **kwargs):
    print(inputs)
    if self.services[cur_node].service_type == ServiceType.ASR:
        # {'byte_str': 'UklGRigAAABXQVZFZm10IBIAAAABAAEARKwAAIhYAQACABAAAABkYXRhAgAAAAEA'}
        inputs["audio"] = inputs["byte_str"]
        del inputs["byte_str"]
    elif self.services[cur_node].service_type == ServiceType.LLM:
        # convert TGI/vLLM to unified OpenAI /v1/chat/completions format
        next_inputs = {}
        next_inputs["model"] = "tgi"  # specifically clarify the fake model to make the format unified
        next_inputs["messages"] = [{"role": "user", "content": inputs["asr_result"]}]
        next_inputs["max_tokens"] = llm_parameters_dict["max_tokens"]
        next_inputs["top_p"] = llm_parameters_dict["top_p"]
        next_inputs["stream"] = inputs["streaming"]  # False as default
        next_inputs["frequency_penalty"] = inputs["frequency_penalty"]
        # next_inputs["presence_penalty"] = inputs["presence_penalty"]
        # next_inputs["repetition_penalty"] = inputs["repetition_penalty"]
        next_inputs["temperature"] = inputs["temperature"]
        inputs = next_inputs
    elif self.services[cur_node].service_type == ServiceType.TTS:
        next_inputs = {}
        next_inputs["text"] = inputs["choices"][0]["message"]["content"]
        next_inputs["text_language"] = kwargs["tts_text_language"] if "tts_text_language" in kwargs else "zh"
        inputs = next_inputs
    return inputs


def align_outputs(self, data, cur_node, inputs, runtime_graph, llm_parameters_dict, **kwargs):
    if self.services[cur_node].service_type == ServiceType.TTS:
        audio_base64 = base64.b64encode(data).decode("utf-8")
        return {"byte_str": audio_base64}
    return data


class AudioQnAService:
    def __init__(self, host="0.0.0.0", port=8000):
        self.host = host
        self.port = port
        ServiceOrchestrator.align_inputs = align_inputs
        ServiceOrchestrator.align_outputs = align_outputs
        self.megaservice = ServiceOrchestrator()

    def add_remote_service(self):
        asr = MicroService(
            name="asr",
            host=WHISPER_SERVER_HOST_IP,
            port=WHISPER_SERVER_PORT,
            # endpoint="/v1/audio/transcriptions",
            endpoint="/v1/asr",
            use_remote_service=True,
            service_type=ServiceType.ASR,
        )
        llm = MicroService(
            name="llm",
            host=LLM_SERVER_HOST_IP,
            port=LLM_SERVER_PORT,
            endpoint="/v1/chat/completions",
            use_remote_service=True,
            service_type=ServiceType.LLM,
        )
        tts = MicroService(
            name="tts",
            host=GPT_SOVITS_SERVER_HOST_IP,
            port=GPT_SOVITS_SERVER_PORT,
            # endpoint="/v1/audio/speech",
            endpoint="/",
            use_remote_service=True,
            service_type=ServiceType.TTS,
        )
        self.megaservice.add(asr).add(llm).add(tts)
        self.megaservice.flow_to(asr, llm)
        self.megaservice.flow_to(llm, tts)
        self.gateway = AudioQnAGateway(megaservice=self.megaservice, host="0.0.0.0", port=self.port)


if __name__ == "__main__":
    audioqna = AudioQnAService(host=MEGA_SERVICE_HOST_IP, port=MEGA_SERVICE_PORT)
    audioqna.add_remote_service()