engy/examples/basic_tools/invoice_creator_2/index.html at main · renning22/engy · GitHub

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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>Invoice Generator</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/milligram/1.4.1/milligram.min.css">
    <style>
        body {
            padding: 20px;
        }
        .container {
            max-width: 800px;
            margin: 0 auto;
        }
        .dropzone {
            border: 2px dashed #ccc;
            border-radius: 4px;
            padding: 20px;
            text-align: center;
            cursor: pointer;
        }
        .dropzone.dragover {
            background-color: #f0f0f0;
        }
        #previewImage {
            max-width: 100%;
            max-height: 200px;
            margin-top: 10px;
        }
        .invoice-items {
            margin-bottom: 20px;
        }
        .invoice-item {
            display: flex;
            gap: 10px;
            margin-bottom: 10px;
        }
        .modal {
            display: none;
            position: fixed;
            z-index: 1;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: auto;
            background-color: rgba(0,0,0,0.4);
        }
        .modal-content {
            background-color: #fefefe;
            margin: 15% auto;
            padding: 20px;
            border: 1px solid #888;
            width: 80%;
        }
        .close {
            color: #aaa;
            float: right;
            font-size: 28px;
            font-weight: bold;
            cursor: pointer;
        }
        .close:hover,
        .close:focus {
            color: black;
            text-decoration: none;
            cursor: pointer;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Invoice Generator</h1>

        <h2>Upload Image</h2>
        <div id="dropzone" class="dropzone">
            <p>Drag and drop an image here, or click to select a file</p>
            <input type="file" id="fileInput" accept="image/*" style="display: none;">
        </div>
        <img id="previewImage" src="" alt="Preview" style="display: none;">

        <h2>Invoice Details</h2>
        <form id="invoiceForm">
            <label for="companyInfo">Company Info:</label>
            <textarea id="companyInfo" name="companyInfo" required></textarea>

            <h3>Invoice Items</h3>
            <div id="invoiceItems" class="invoice-items">
                <div class="invoice-item">
                    <input type="text" name="itemName[]" placeholder="Item name" required>
                    <input type="number" name="itemQuantity[]" placeholder="Quantity" required min="1">
                    <input type="number" name="itemPrice[]" placeholder="Price" required min="0" step="0.01">
                    <button type="button" class="button-outline" onclick="removeItem(this)">Remove</button>
                </div>
            </div>
            <button type="button" onclick="addItem()">Add Item</button>

            <button type="submit">Generate Invoice</button>
        </form>

        <h2>Generated Invoices</h2>
        <table id="invoiceList">
            <thead>
                <tr>
                    <th>ID</th>
                    <th>Company Info</th>
                    <th>Total</th>
                    <th>Actions</th>
                </tr>
            </thead>
            <tbody></tbody>
        </table>
    </div>

    <div id="previewModal" class="modal">
        <div class="modal-content">
            <span class="close">&times;</span>
            <h2>Invoice Preview</h2>
            <img id="previewInvoice" src="" alt="Invoice Preview" style="max-width: 100%;">
        </div>
    </div>

    <script>
        const API_URL = 'http://localhost:7527';
        let uploadedImagePath = '';

        // Drag and drop functionality
        const dropzone = document.getElementById('dropzone');
        const fileInput = document.getElementById('fileInput');
        const previewImage = document.getElementById('previewImage');

        dropzone.addEventListener('click', () => fileInput.click());
        dropzone.addEventListener('dragover', (e) => {
            e.preventDefault();
            dropzone.classList.add('dragover');
        });
        dropzone.addEventListener('dragleave', () => dropzone.classList.remove('dragover'));
        dropzone.addEventListener('drop', handleDrop);
        fileInput.addEventListener('change', handleFileSelect);

        function handleDrop(e) {
            e.preventDefault();
            dropzone.classList.remove('dragover');
            const file = e.dataTransfer.files[0];
            handleImageUpload(file);
        }

        function handleFileSelect(e) {
            const file = e.target.files[0];
            handleImageUpload(file);
        }

        async function handleImageUpload(file) {
            const formData = new FormData();
            formData.append('image', file);

            try {
                const response = await fetch(`${API_URL}/upload_image`, {
                    method: 'POST',
                    body: formData
                });
                const data = await response.json();
                uploadedImagePath = data.image_path;
                previewImage.src = URL.createObjectURL(file);
                previewImage.style.display = 'block';
            } catch (error) {
                console.error('Error uploading image:', error);
            }
        }

        // Invoice form handling
        const invoiceForm = document.getElementById('invoiceForm');
        invoiceForm.addEventListener('submit', generateInvoice);

        async function generateInvoice(e) {
            e.preventDefault();
            const formData = new FormData(invoiceForm);
            const invoiceData = {
                company_info: formData.get('companyInfo'),
                items: [],
                image_path: uploadedImagePath
            };

            const itemNames = formData.getAll('itemName[]');
            const itemQuantities = formData.getAll('itemQuantity[]');
            const itemPrices = formData.getAll('itemPrice[]');

            for (let i = 0; i < itemNames.length; i++) {
                invoiceData.items.push({
                    name: itemNames[i],
                    quantity: parseInt(itemQuantities[i]),
                    price: parseFloat(itemPrices[i])
                });
            }

            try {
                const response = await fetch(`${API_URL}/generate_invoice`, {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    body: JSON.stringify(invoiceData)
                });
                const data = await response.json();
                displayInvoicePreview(data.id);
                loadInvoiceList();
            } catch (error) {
                console.error('Error generating invoice:', error);
            }
        }

        async function displayInvoicePreview(invoiceId) {
            const previewModal = document.getElementById('previewModal');
            const previewInvoice = document.getElementById('previewInvoice');
            const closeBtn = document.getElementsByClassName('close')[0];

            previewInvoice.src = `${API_URL}/download/${invoiceId}?format=png`;
            previewModal.style.display = 'block';

            closeBtn.onclick = () => previewModal.style.display = 'none';
            window.onclick = (event) => {
                if (event.target == previewModal) {
                    previewModal.style.display = 'none';
                }
            };
        }

        async function loadInvoiceList() {
            try {
                const response = await fetch(`${API_URL}/invoices`);
                const invoices = await response.json();
                const tbody = document.querySelector('#invoiceList tbody');
                tbody.innerHTML = '';

                invoices.forEach(invoice => {
                    const row = tbody.insertRow();
                    row.innerHTML = `
                        <td>${invoice.id}</td>
                        <td>${invoice.company_info}</td>
                        <td>$${invoice.total.toFixed(2)}</td>
                        <td>
                            <button onclick="downloadInvoice('${invoice.id}', 'pdf')">Download PDF</button>
                            <button onclick="downloadInvoice('${invoice.id}', 'png')">Download PNG</button>
                        </td>
                    `;
                });
            } catch (error) {
                console.error('Error loading invoice list:', error);
            }
        }

        function downloadInvoice(invoiceId, format) {
            window.open(`${API_URL}/download/${invoiceId}?format=${format}`, '_blank');
        }

        function addItem() {
            const invoiceItems = document.getElementById('invoiceItems');
            const newItem = document.createElement('div');
            newItem.className = 'invoice-item';
            newItem.innerHTML = `
                <input type="text" name="itemName[]" placeholder="Item name" required>
                <input type="number" name="itemQuantity[]" placeholder="Quantity" required min="1">
                <input type="number" name="itemPrice[]" placeholder="Price" required min="0" step="0.01">
                <button type="button" class="button-outline" onclick="removeItem(this)">Remove</button>
            `;
            invoiceItems.appendChild(newItem);
        }

        function removeItem(button) {
            button.parentElement.remove();
        }

        // Load invoice list on page load
        loadInvoiceList();
    </script>
</body>
</html>