organizing the project

src/templates/admin/add_product.html

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+{% extends "layout.html" %}
+
+{% block title %}Add New Product - KCAP Demo Server{% endblock %}
+
+{% block content %}
+<div class="row mt-4">
+    <div class="col-md-8 offset-md-2">
+        <div class="card">
+            <div class="card-header">
+                <h2>Add New Product</h2>
+            </div>
+            <div class="card-body">
+                <form action="{{ url_for('admin.add_product') }}" method="POST" enctype="multipart/form-data">
+                    <div class="mb-3">
+                        <label for="product_id" class="form-label">Product ID *</label>
+                        <div class="input-group">
+                            <input type="text" class="form-control" id="product_id" name="product_id" required>
+                            <button class="btn btn-outline-secondary" type="button" id="generate-id-btn" title="Generate Random ID">
+                                <i class="bi bi-magic"></i> Generate
+                            </button>
+                        </div>
+                        <div class="form-text">Must be unique. This will be used as the barcode for AR content.</div>
+                    </div>
+                    
+                    <div class="mb-3">
+                        <label for="name" class="form-label">Product Name *</label>
+                        <input type="text" class="form-control" id="name" name="name" required>
+                        <div class="form-text">Enter a descriptive name for the product.</div>
+                    </div>
+                    
+                    <div class="mb-3">
+                        <label for="price" class="form-label">Price *</label>
+                        <div class="input-group">
+                            <span class="input-group-text">$</span>
+                            <input type="text" class="form-control" id="price" name="price" required pattern="[0-9]+(\.[0-9]{1,2})?" placeholder="49.99">
+                        </div>
+                        <div class="form-text">Enter the price in decimal format (e.g., 49.99)</div>
+                    </div>
+                    
+                    <div class="mb-3">
+                        <label for="image" class="form-label">Product Image</label>
+                        <input type="file" class="form-control" id="image" name="image" accept="image/*" onchange="previewImage(this)">
+                        <div class="form-text">Supported formats: .png, .jpg, .jpeg, .gif</div>
+                        <div class="mt-2">
+                            <img id="image-preview" class="image-preview" style="display: none;">
+                        </div>
+                    </div>
+                    
+                    <div class="d-flex justify-content-between">
+                        <a href="{{ url_for('admin.index') }}" class="btn btn-secondary">Cancel</a>
+                        <button type="submit" class="btn btn-primary">Add Product</button>
+                    </div>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>
+{% endblock %}
+
+{% block extra_js %}
+<script>
+function previewImage(input) {
+    var preview = document.getElementById('image-preview');
+    
+    if (input.files && input.files[0]) {
+        var reader = new FileReader();
+        
+        reader.onload = function(e) {
+            preview.src = e.target.result;
+            preview.style.display = 'block';
+        }
+        
+        reader.readAsDataURL(input.files[0]);
+    } else {
+        preview.style.display = 'none';
+    }
+}
+
+// Generate a random product ID
+document.getElementById('generate-id-btn').addEventListener('click', function() {
+    // Generate a random alphanumeric ID
+    // Format: 3 letters followed by 4 numbers (e.g., ABC1234)
+    const letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
+    const numbers = '0123456789';
+    
+    let id = '';
+    
+    // Add 3 random uppercase letters
+    for (let i = 0; i < 3; i++) {
+        id += letters.charAt(Math.floor(Math.random() * letters.length));
+    }
+    
+    // Add 4 random numbers
+    for (let i = 0; i < 4; i++) {
+        id += numbers.charAt(Math.floor(Math.random() * numbers.length));
+    }
+    
+    // Set the generated ID in the input field
+    document.getElementById('product_id').value = id;
+});
+</script>
+{% endblock %}