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path: root/src/client/apis/gpt/Summarization.ts
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import { Configuration, OpenAIApi } from 'openai';

enum GPTCallType {
    SUMMARY = 'summary',
    COMPLETION = 'completion',
}

type GPTCallOpts = {
    model: string;
    maxTokens: number;
    temp: number;
    prompt: string;
};

const callTypeMap: { [type: string]: GPTCallOpts } = {
    summary: { model: 'text-davinci-003', maxTokens: 100, temp: 0.5, prompt: 'Summarize this text: ' },
    completion: { model: 'text-davinci-003', maxTokens: 100, temp: 0.5, prompt: '' },
};

/**
 * Calls the OpenAI API.
 *
 * @param inputText Text to process
 * @returns AI Output
 */
const gptAPICall = async (inputText: string, callType: GPTCallType) => {
    if (callType === GPTCallType.SUMMARY) inputText += '.';
    const opts: GPTCallOpts = callTypeMap[callType];
    try {
        const configuration = new Configuration({
            apiKey: process.env.OPENAI_KEY,
        });
        const openai = new OpenAIApi(configuration);
        const response = await openai.createCompletion({
            model: opts.model,
            max_tokens: opts.maxTokens,
            temperature: opts.temp,
            prompt: `${opts.prompt}${inputText}`,
        });
        return response.data.choices[0].text;
    } catch (err) {
        console.log(err);
        return 'Error connecting with API.';
    }
};


export { gptAPICall, GPTCallType};