pdf-to-image-aws-lambda/test_lambda.html at main · ai-1st/pdf-to-image-aws-lambda · GitHub

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<!DOCTYPE html>
<html>
<head>
    <title>PDF to Image Converter - Test</title>
    <style>
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            background-color: #f5f5f5;
        }

        .container {
            background-color: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .input-group {
            margin-bottom: 20px;
        }

        input[type="text"], input[type="file"] {
            width: 100%;
            padding: 10px;
            margin: 5px 0;
            border: 1px solid #ddd;
            border-radius: 4px;
            box-sizing: border-box;
        }

        .status {
            margin: 10px 0;
            padding: 10px;
            border-radius: 4px;
        }

        .status.success {
            background-color: #e8f5e9;
            color: #2e7d32;
        }

        .status.error {
            background-color: #ffebee;
            color: #c62828;
        }

        .image-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .image-container {
            position: relative;
            background-color: white;
            padding: 10px;
            border-radius: 4px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }

        .image-container img {
            width: 100%;
            height: auto;
            border-radius: 2px;
        }

        .page-number {
            position: absolute;
            top: 10px;
            right: 10px;
            background-color: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 12px;
        }

        button {
            background-color: #2196f3;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
        }

        button:disabled {
            background-color: #bdbdbd;
            cursor: not-allowed;
        }

        button:hover:not(:disabled) {
            background-color: #1976d2;
        }

        .loading {
            display: none;
            margin: 10px 0;
            color: #666;
        }

        .loading.visible {
            display: block;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>PDF to Image Converter - Test</h1>

        <div class="input-group">
            <label for="lambdaUrl">Lambda Function URL:</label>
            <input type="text" id="lambdaUrl" placeholder="https://..." />
        </div>

        <div class="input-group">
            <label for="pdfInput">Select PDF file:</label>
            <input type="file" id="pdfInput" accept=".pdf" disabled />
        </div>

        <div id="loading" class="loading">Processing...</div>
        <div id="status"></div>
        <div id="imageGrid" class="image-grid"></div>
    </div>

    <script>
        const lambdaUrlInput = document.getElementById('lambdaUrl');
        const pdfInput = document.getElementById('pdfInput');
        const loading = document.getElementById('loading');
        const status = document.getElementById('status');
        const imageGrid = document.getElementById('imageGrid');

        // Load saved Lambda URL from localStorage
        const savedLambdaUrl = localStorage.getItem('lambdaFunctionUrl');
        if (savedLambdaUrl) {
            lambdaUrlInput.value = savedLambdaUrl;
            pdfInput.disabled = false;
        }

        function showStatus(message, type = 'success') {
            status.className = `status ${type}`;
            status.textContent = message;
        }

        function showLoading(show) {
            loading.className = show ? 'loading visible' : 'loading';
            pdfInput.disabled = show;
        }

        function normalizeUrl(url) {
            return url.trim().replace(/\/+$/, '');
        }

        lambdaUrlInput.addEventListener('input', () => {
            const url = normalizeUrl(lambdaUrlInput.value);
            lambdaUrlInput.value = url; // Update input with normalized URL
            pdfInput.disabled = !url;
            if (url) {
                localStorage.setItem('lambdaFunctionUrl', url);
            } else {
                localStorage.removeItem('lambdaFunctionUrl');
            }
        });

        async function convertPdf(file) {
            try {
                showLoading(true);
                imageGrid.innerHTML = '';

                // Step 1: Get upload URL
                showStatus('Getting upload URL...');
                const baseUrl = normalizeUrl(lambdaUrlInput.value);
                const urlResponse = await fetch(`${baseUrl}/upload_url`, {
                    method: 'GET',
                    mode: 'cors',
                    headers: {
                        'Accept': 'application/json'
                    }
                });
                if (!urlResponse.ok) {
                    const errorText = await urlResponse.text();
                    throw new Error(`Failed to get upload URL: ${errorText}`);
                }
                const { uploadUrl, fileId } = await urlResponse.json();

                // Step 2: Upload PDF
                showStatus('Uploading PDF file...');
                const uploadResponse = await fetch(uploadUrl, {
                    method: 'PUT',
                    body: file,
                    mode: 'cors',
                    headers: {
                        'Content-Type': 'application/pdf'
                    },
                    credentials: 'omit'
                });
                if (!uploadResponse.ok) {
                    let errorMessage;
                    try {
                        const text = await uploadResponse.text();
                        const parser = new DOMParser();
                        const xmlDoc = parser.parseFromString(text, "text/xml");
                        const message = xmlDoc.querySelector("Message");
                        errorMessage = message ? message.textContent : text;
                    } catch (e) {
                        errorMessage = await uploadResponse.text();
                    }
                    throw new Error(`Failed to upload PDF: ${errorMessage}`);
                }

                // Step 3: Convert PDF to images
                showStatus('Converting PDF to images...');
                const convertResponse = await fetch(`${baseUrl}/process/${fileId}`, {
                    method: 'GET',
                    mode: 'cors',
                    headers: {
                        'Accept': 'application/json'
                    }
                });
                if (!convertResponse.ok) {
                    const errorText = await convertResponse.text();
                    throw new Error(`Failed to convert PDF: ${errorText}`);
                }
                const { imageUrls } = await convertResponse.json();

                // Display images in grid
                showStatus(`Successfully converted ${imageUrls.length} pages`);
                imageUrls.forEach((url, index) => {
                    const container = document.createElement('div');
                    container.className = 'image-container';

                    const img = document.createElement('img');
                    img.src = url;
                    img.alt = `Page ${index + 1}`;

                    const pageNumber = document.createElement('div');
                    pageNumber.className = 'page-number';
                    pageNumber.textContent = `Page ${index + 1}`;

                    container.appendChild(img);
                    container.appendChild(pageNumber);
                    imageGrid.appendChild(container);
                });

            } catch (error) {
                console.error('Error:', error);
                showStatus(error.message, 'error');
            } finally {
                showLoading(false);
            }
        }

        pdfInput.addEventListener('change', (e) => {
            const file = e.target.files[0];
            if (file) {
                convertPdf(file);
            }
        });
    </script>
</body>
</html>