import fs from 'fs/promises';
import path from 'path';
import { Screenshot } from './types.js';
import { CONFIG } from './config.js';
let screenshots: Screenshot[] = [];
export async function initializeStorage() {
await fs.mkdir(CONFIG.SCREENSHOTS_DIR, { recursive: true });
await loadExistingScreenshots();
}
async function loadExistingScreenshots() {
try {
const files = await fs.readdir(CONFIG.SCREENSHOTS_DIR);
for (const file of files) {
if (
file.endsWith('.png') ||
file.endsWith('.jpg') ||
file.endsWith('.jpeg')
) {
// Simple metadata from filename and file stats
const stats = await fs.stat(getScreenshotPath(file));
const id = file.replace(/\.[^/.]+$/, ''); // Remove extension
const screenshot: Screenshot = {
id,
timestamp: stats.mtime.getTime(),
source: 'expo',
filename: file,
};
screenshots.push(screenshot);
}
}
// Sort by timestamp, newest first
screenshots.sort((a, b) => b.timestamp - a.timestamp);
await enforceStorageLimit();
console.error(`[ExpoSnap] Loaded ${screenshots.length} existing screenshots`);
} catch {
console.error('[ExpoSnap] No existing screenshots found');
}
}
export function getAllScreenshots(): Screenshot[] {
return [...screenshots]; // Return copy to prevent mutation
}
export function getLatestScreenshot(): Screenshot | null {
return screenshots.length > 0 ? screenshots[0] : null;
}
export function findScreenshot(id: string): Screenshot | null {
return screenshots.find(s => s.id === id) || null;
}
export async function addScreenshot(screenshot: Screenshot): Promise<void> {
screenshots.unshift(screenshot); // Add to beginning (newest first)
await enforceStorageLimit();
console.error(`[ExpoSnap] Added screenshot: ${screenshot.id}`);
}
async function enforceStorageLimit(): Promise<void> {
const limit = Math.max(1, CONFIG.MAX_SCREENSHOTS);
if (screenshots.length <= limit) {
return;
}
const toRemove = screenshots.splice(limit);
for (const old of toRemove) {
try {
await fs.unlink(getScreenshotPath(old.filename));
} catch {
// File might already be deleted
}
}
}
export function getScreenshotPath(filename: string): string {
return path.join(CONFIG.SCREENSHOTS_DIR, filename);
}
