Contact person: TypeScript API Integration Help

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Location: Shyamdaspur, India

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Project description:
"/* tslint:disable */
/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { GoogleGenAI } from '@google/genai';

// Fix: Define and use AIStudio interface for [login to view URL] to resolve type conflict.
// Define the aistudio property on the window object for TypeScript
declare global {
interface AIStudio {
openSelectKey: () => Promise<void>;
}
interface Window {
aistudio?: AIStudio;
}
}

async function openApiKeyDialog() {
if ([login to view URL]) {
await [login to view URL]();
} else {
// This provides a fallback for environments where the dialog isn't available
showStatusError(
'API key selection is not available. Please configure the API_KEY environment variable.',
);
}
}

async function delay(ms: number): Promise<void> {
return new Promise((resolve) => setTimeout(resolve, ms));
}

function blobToBase64(blob: Blob) {
return new Promise<string>((resolve) => {
const reader = new FileReader();
[login to view URL] = () => {
const url = [login to view URL] as string;
// Return only the Base64 part of the data URL
resolve([login to view URL](',')[1]);
};
[login to view URL](blob);
});
}

function downloadFile(url, filename) {
const a = [login to view URL]('a');
[login to view URL] = url;
[login to view URL] = filename;
[login to view URL] = 'none';
[login to view URL](a);
[login to view URL]();
[login to view URL](a);
}

const statusEl = [login to view URL]('#status') as HTMLDivElement;

async function generateContent(
prompt: string,
imageBytes: string,
apiKey: string,
) {
const ai = new GoogleGenAI({ apiKey });

const params: any = {
model: 'veo-3.0-fast-generate-001',
prompt,
config: {
// aspectRatio: '16:9',
// durationSeconds: 1,
// fps: 24,
// generateAudio: true,
// resolution: "720p",
numberOfVideos: 1,
},
};

if (imageBytes) {
[login to view URL] = {
imageBytes,
mimeType: 'image/png', // Assuming PNG, adjust if supporting others
};
}

let operation = await [login to view URL](params);

[login to view URL] = 'Generating...';

let pollCount = 0;
const maxPolls = 20;
while (![login to view URL] && pollCount < maxPolls) {
pollCount++;
[login to view URL]('Waiting for completion');
await delay(10000); // Poll every 10 seconds
try {
operation = await [login to view URL]({ operation });
} catch (e) {
[login to view URL]('Error polling for operation status:', e);
throw new Error(
'Failed to get video generation status. Please try again.',
);
}
}

if (![login to view URL]) {
throw new Error(
'Video generation timed out. Please try again with a simpler prompt.',
);
}

const videos = [login to view URL];
if (videos === undefined || [login to view URL] === 0) {
throw new Error(
'No videos were generated. The prompt may have been blocked.',
);
}

[login to view URL] = 'Downloading video...';

for (const [i, v] of [login to view URL]()) {
const url = decodeURIComponent([login to view URL]);
// Append API key for access
const res = await fetch(`${url}&key=${apiKey}`);
const blob = await [login to view URL]();
const objectURL = [login to view URL](blob);
downloadFile(objectURL, `video${i}.mp4`);
[login to view URL] = objectURL;
[login to view URL]('Downloaded video', `video${i}.mp4`);
[login to view URL] = 'block';
}
}

// --- DOM Element Selection ---
const upload = [login to view URL]('#file-input') as HTMLInputElement;
const promptEl = [login to view URL]('#prompt-input') as HTMLTextAreaElement;
const generateButton = [login to view URL](
'#generate-button',
) as HTMLButtonElement;
const video = [login to view URL]('#video') as HTMLVideoElement;
const fileNameEl = [login to view URL]('#file-name') as HTMLSpanElement;
const imgPreview = [login to view URL]('#img-preview') as HTMLImageElement;

// --- State Variables ---
let base64data = '';
let prompt = '';

// --- Event Listeners ---
[login to view URL]('change', async (e) => {
const file = ([login to view URL] as HTMLInputElement).files?.[0];
if (file) {
[login to view URL] = [login to view URL];
base64data = await blobToBase64(file);
[login to view URL] = `data:image/png;base64,${base64data}`;
[login to view URL] = 'block';
} else {
[login to view URL] = 'No file chosen';
base64data = '';
[login to view URL] = 'none';
}
});

[login to view URL]('input', () => {
prompt = [login to view URL];
});

[login to view URL]('click', () => {
if (![login to view URL]()) {
showStatusError('Please enter a prompt to generate a video.');
return;
}
generate();
});

// --- Functions ---
function showStatusError(message: string) {
[login to view URL] = `<span class="text-red-400">${message}</span>`;
}

function setControlsDisabled(disabled: boolean) {
[login to view URL] = disabled;
[login to view URL] = disabled;
[login to view URL] = disabled;
}

async function generate() {
const apiKey = process.env.API_KEY;

if (!apiKey) {
showStatusError('API key is not configured. Please add your API key.');
await openApiKeyDialog();
return;
}

[login to view URL] = 'Initializing video generation...';
[login to view URL] = 'none';
setControlsDisabled(true);

try {
await generateContent(prompt, base64data, apiKey);
[login to view URL] = '';
} catch (e) {
[login to view URL]('Video generation failed:', e);
const errorMessage =
e instanceof Error ? [login to view URL] : 'An unknown error occurred.';

let userFriendlyMessage = `Error: ${errorMessage}`;
let shouldOpenDialog = false;

if (typeof errorMessage === 'string') {
if ([login to view URL]('Requested entity was not found.')) {
userFriendlyMessage =
'Model not found. This can be caused by an invalid API key or permission issues. Please check your API key.';
shouldOpenDialog = true;
} else if (
[login to view URL]('API_KEY_INVALID') ||
[login to view URL]('API key not valid') ||
[login to view URL]().includes('permission denied')
) {
userFriendlyMessage =
'Your API key is invalid. Please add a valid API key.';
shouldOpenDialog = true;
}
}

showStatusError(userFriendlyMessage);

if (shouldOpenDialog) {
await openApiKeyDialog();
}
} finally {
setControlsDisabled(false);
}
}" (client-provided description)