const { StatusCodes } = require("http-status-codes")
const { sentiment, convertTextToSpeech, listVoice } = require("../utils")
const language = require('@google-cloud/language').v2
const CustomError = require('../errors')
const voiceConfigList = require('../mockData/voice.json') 

const getSentiment = async (req, res) => {

    const { text, } = req.body

    const status = await sentiment(text)

    res.status(StatusCodes.OK).json({ status })
}

const getAudioFromText = async (req, res) => {

    const { text, voice_name, voice_gender, languageCode } = req.query
 
    if ((voice_name || voice_gender || languageCode) && languageCode == 'pt-BR') {

        const config = { voice_name, voice_gender, languageCode }

        for (const key in config) {
            if (config.hasOwnProperty(key) && config[key] === undefined) {
                throw new CustomError.BadRequestError(`The key ${key} is required when setted one of the three configuration parameters: voice_name, voice_gender and languageCode`)
            }
        }

        const voice = voiceConfigList.find(({ name, ssmlGender, languageCode }) => {
            if (name == config.voice_name && ssmlGender == config.voice_gender && languageCode == config.languageCode) return { name, ssmlGender, languageCode }
        })

        if (!voice)
            throw new CustomError.BadRequestError(`Wrong config voice combination! Check the endpoint(http://localhost:6001/api/v1/nl/voice-config) to display the available configurations to a language`)

    }

    const audioBuffer = await convertTextToSpeech(text, voice_name, voice_gender, languageCode)


    if (voice_name && voice_gender && languageCode){
        filename = `${voice_name}_${voice_gender}_${languageCode}.mp3`
    }
    else{
        filename = `pt-BR-Standard-B_MALE_pt-BR.mp3`
    }
   
    // Set the Content-Disposition header 
    // res.set("Content-Disposition", `attachment; filename="${filename}"`); 
    res.set("Content-Disposition", `inline; filename="${filename}"`);



    res.contentType('audio/mpeg')

    res.status(StatusCodes.OK).send(audioBuffer)

}

const getVoiceConfig = async (req, res) => {

    const { languageCode } = req.query

    console.log(languageCode)

    const configs = await listVoice(languageCode)

    res.status(StatusCodes.OK).json({ configs })
}

module.exports = {
    getSentiment,
    getAudioFromText,
    getVoiceConfig
}