{% 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">
                {% if not custom_fields %}
                <div class="alert alert-warning" role="alert">
                    <h4 class="alert-heading"><i class="bi bi-exclamation-triangle-fill me-2"></i>No Fields Configured</h4>
                    <p>Unable to add products. You must configure custom AR fields before adding products.</p>
                    <hr>
                    <p class="mb-0">
                        <a href="/{{ tenant_id }}/ar_fields" class="btn btn-primary">
                            <i class="bi bi-gear-fill me-1"></i>Configure AR Fields
                        </a>
                        <a href="/{{ tenant_id }}/" class="btn btn-secondary ms-2">
                            <i class="bi bi-arrow-left me-1"></i>Back to Products
                        </a>
                    </p>
                </div>
                {% else %}
                <form action="/{{ tenant_id }}/add" 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>
                    
                    {% for field in custom_fields %}
                        {% if field.fieldName != '_id' %}
                        <div class="mb-3">
                            <label for="field_{{ field.fieldName }}" class="form-label">{{ field.label }}</label>
                            {% if field.fieldType == 'IMAGE_URI' %}
                                <input type="file" class="form-control" id="image_{{ field.fieldName }}" name="image_{{ field.fieldName }}" accept="image/*" onchange="previewImage(this, 'preview_{{ field.fieldName }}')">
                                <div class="form-text">Supported formats: .png, .jpg, .jpeg, .gif</div>
                                <div class="mt-2">
                                    <img id="preview_{{ field.fieldName }}" class="image-preview" style="display: none; max-width: 200px;">
                                </div>
                            {% elif field.fieldType == 'TEXT' %}
                                {% if field.fieldName == '_price' %}
                                <div class="input-group">
                                    <span class="input-group-text">$</span>
                                    <input type="text" class="form-control" id="field_{{ field.fieldName }}" name="field_{{ field.fieldName }}" pattern="[0-9]+(\.[0-9]{1,2})?" placeholder="49.99">
                                </div>
                                {% else %}
                                <input type="text" class="form-control" id="field_{{ field.fieldName }}" name="field_{{ field.fieldName }}">
                                {% endif %}
                            {% else %}
                                <input type="text" class="form-control" id="field_{{ field.fieldName }}" name="field_{{ field.fieldName }}">
                            {% endif %}
                        </div>
                        {% endif %}
                    {% endfor %}
                    
                    <!-- Fallback fields for backward compatibility -->
                    {% if not custom_fields|selectattr('fieldName', 'equalto', '_name')|list %}
                    <div class="mb-3">
                        <label for="name" class="form-label">Product Name</label>
                        <input type="text" class="form-control" id="name" name="name">
                    </div>
                    {% endif %}
                    
                    {% if not custom_fields|selectattr('fieldName', 'equalto', '_price')|list %}
                    <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" pattern="[0-9]+(\.[0-9]{1,2})?" placeholder="49.99">
                        </div>
                    </div>
                    {% endif %}
                    
                    <div class="d-flex justify-content-between">
                        <a href="/{{ tenant_id }}/" class="btn btn-secondary">Cancel</a>
                        <button type="submit" class="btn btn-primary">Add Product</button>
                    </div>
                </form>
                {% endif %}
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
function previewImage(input, previewId) {
    var preview = document.getElementById(previewId || '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 %}