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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Upload File</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            text-align: center;
            margin-top: 50px;
        }
        #preview {
            margin-top: 20px;
            max-width: 500px;
            max-height: 500px;
            display: none;
        }
    </style>
</head>
<body>
    <h1>Vehicle Damage Detection</h1>
    <form id="uploadForm" enctype="multipart/form-data">
        <label for="file">Upload an image:</label>
        <input type="file" id="file" name="file" accept="image/*" required>
        <br><br>
        <img id="preview" alt="Image Preview">
        <br><br>
        <button type="submit">Upload and Analyze</button>
    </form>
    <p id="response"></p>

    <script>
        const fileInput = document.getElementById('file');
        const preview = document.getElementById('preview');
        const uploadForm = document.getElementById('uploadForm');
        const responseElement = document.getElementById('response');

        // Preview the selected image
        fileInput.addEventListener('change', function () {
            const file = fileInput.files[0];
            if (file) {
                const reader = new FileReader();
                reader.onload = function (e) {
                    preview.src = e.target.result;
                    preview.style.display = 'block';
                };
                reader.readAsDataURL(file);
            } else {
                preview.style.display = 'none';
            }
        });

        // Handle form submission
        uploadForm.addEventListener('submit', async function (event) {
            event.preventDefault();

            const formData = new FormData();
            formData.append('file', fileInput.files[0]);

            responseElement.textContent = 'Uploading and analyzing...';

            try {
                const response = await fetch('/upload', {
                    method: 'POST',
                    body: formData
                });

                if (response.ok) {
                    const result = await response.json();
                    responseElement.innerHTML = `
                        <strong>Analysis Result:</strong><br>
                        Total Cost: $${result.total_cost}<br>
                        <ul>
                            ${result.damages.map(damage => `
                                <li>
                                    Part: ${damage.part}, Area: ${damage.area_pixels} pixels, Cost: $${damage.cost_usd}
                                </li>
                            `).join('')}
                        </ul>
                    `;
                } else {
                    responseElement.textContent = 'Error: Unable to analyze the image.';
                }
            } catch (error) {
                responseElement.textContent = 'Error: ' + error.message;
            }
        });
    </script>
</body>
</html>