video2document/services/modules/document/gemini/gemini.js

import { GoogleGenAI } from "@google/genai";
import fs from "fs";

// Mike Hughes 10/11/25 - Code inspired from 
// https://www.geeksforgeeks.org/javascript/javascript-program-to-read-text-file/ for reading text files in JS
// and from https://ai.google.dev/gemini-api/docs/quickstart?hl=de for using Gemini API
// Before using, make sure to export the Google Gemini API key as an environment variable:
//  export GOOGLE_API_KEY="your_api_key_here"
//  Keys can be obtained from https://aistudio.google.com/app/api-keys
//  Also make sure to install the package via sudo npm install @google/genai

const ai = new GoogleGenAI({});
let transcript = "";

async function main() {
    try {
        const transcript = await fs.promises.readFile('../../../../storage/transcripts/Kurzgesagt.txt', 'utf-8');

        const response = await ai.models.generateContent({
            model: "gemini-2.5-flash",
            contents: `Create a short documentation about the content of the following transcript:\n\n${transcript}`,
        });

        console.log(response.text);
        fs.writeFileSync("../../../../storage/documents/Kurzgesagt_documentation.md", response.text, "utf8");
    } catch (error) {
    console.error('Error generating content:', error);
    }
}

main();