import { Configuration, OpenAIApi } from 'openai'
import { process } from './env'

const configuration = new Configuration({
    apiKey: process.env.OPENAI_API_KEY,
})

const openai = new OpenAIApi(configuration)

const chatbotConversation = document.getElementById('chatbot-conversation')
 
let conversationStr = ''
 
document.addEventListener('submit', (e) => {
    e.preventDefault()
    const userInput = document.getElementById('user-input') 
/*
Challenge: 
    1. Add the ' ->' separator to the end of our prompt as 
       it is added to conversationStr.
    2. Add a whitespace before the prompt.
*/
    conversationStr += userInput.value
    fetchReply()
    const newSpeechBubble = document.createElement('div')
    newSpeechBubble.classList.add('speech', 'speech-human')
    chatbotConversation.appendChild(newSpeechBubble)
    newSpeechBubble.textContent = userInput.value
    userInput.value = ''
    chatbotConversation.scrollTop = chatbotConversation.scrollHeight
}) 

async function fetchReply(){
    const response = await openai.createCompletion({
        model: 'davinci:ft-scrimba-2023-03-29-13-42-07',
        prompt: conversationStr,
        presence_penalty: 0,
        frequency_penalty: 0.3,
        max_tokens: 100
    })
    conversationStr += response.data.choices[0].text
    renderTypewriterText(response.data.choices[0].text)
}

function renderTypewriterText(text) {
    const newSpeechBubble = document.createElement('div')
    newSpeechBubble.classList.add('speech', 'speech-ai', 'blinking-cursor')
    chatbotConversation.appendChild(newSpeechBubble)
    let i = 0
    const interval = setInterval(() => {
        newSpeechBubble.textContent += text.slice(i-1, i)
        if (text.length === i) {
            clearInterval(interval)
            newSpeechBubble.classList.remove('blinking-cursor')
        }
        i++
        chatbotConversation.scrollTop = chatbotConversation.scrollHeight
    }, 50)
}