import fs from 'fs';

import path from 'path';

import { convertDngToPng } from '../src/api-mode/dng-converter';

async function testDngConversion() {

console.log('🧪 Testing DNG to PNG conversion...');

// Check if we have a sample DNG file

const testDir = 'test-files';

const sampleDngPath = path.join(testDir, 'sample1.dng');

if (!fs.existsSync(testDir)) {

fs.mkdirSync(testDir, { recursive: true });

}

if (!fs.existsSync(sampleDngPath)) {

console.log('❌ No sample DNG file found at:', sampleDngPath);

console.log('📝 Please place a sample DNG file at:', sampleDngPath);

console.log('🔍 You can download a sample DNG from: https://www.adobe.com/support/downloads/dng/dng_samples.html');

return;

}

try {

const outputPath = path.join(testDir, 'converted.png');

console.log('🔄 Converting DNG file...');

console.log('📁 Input:', sampleDngPath);

console.log('📁 Output:', outputPath);

const startTime = Date.now();

await convertDngToPng(sampleDngPath, outputPath);

const endTime = Date.now();

console.log('✅ Conversion completed successfully!');

console.log('⏱️ Time taken:', (endTime - startTime) / 1000, 'seconds');

// Check if output file exists and get its size

if (fs.existsSync(outputPath)) {

const stats = fs.statSync(outputPath);

console.log('📊 Output file size:', (stats.size / (1024 * 1024)).toFixed(2), 'MB');

console.log('🎉 PNG file created successfully at:', outputPath);

} else {

console.log('❌ Output file was not created');

}

} catch (error) {

console.error('❌ Conversion failed:', error);

// Let's also test what dcraw returns for debugging

try {

console.log('\n🔍 Testing dcraw directly...');

const dcraw = require('dcraw');

const dngBuffer = fs.readFileSync(sampleDngPath);

console.log('📊 DNG file size:', (dngBuffer.length / (1024 * 1024)).toFixed(2), 'MB');

// Try to get metadata first

const metadata = dcraw(dngBuffer, { verbose: true, identify: true });

console.log('📋 DNG metadata:', metadata);

} catch (dcrawError) {

console.error('❌ dcraw test failed:', dcrawError);

}

}

}

// Create a simple DNG file checker

function checkDngFile() {

const testDir = 'test-files';

const sampleDngPath = path.join(testDir, 'sample1.dng');

if (fs.existsSync(sampleDngPath)) {

const stats = fs.statSync(sampleDngPath);

console.log('✅ Sample DNG file found');

console.log('📊 File size:', (stats.size / (1024 * 1024)).toFixed(2), 'MB');

return true;

}

return false;

}

if (require.main === module) {

console.log('🚀 DNG Conversion Test Script');

console.log('============================\n');

if (checkDngFile()) {

testDngConversion().catch(console.error);

} else {

console.log('ℹ️ To test the conversion, please:');

console.log('1. Create a "test-files" directory');

console.log('2. Place a sample DNG file named "sample1.dng" in it');

console.log('3. Run this script again');

console.log('\n📥 You can download sample DNG files from:');

console.log(' https://www.adobe.com/support/downloads/dng/dng_samples.html');

}

}