<?php
namespace JVBase\registry\providers;

if (!defined('ABSPATH')) {
	exit;
}

class HelcimFieldProvider implements FieldProviderInterface
{
	public function getFields(...$args): array
	{
		$config = $args[0] ?? [];

		$fields = [
			// Basic Product Fields
			'price' => [
				'type'        => 'number',
				'bulkEdit'    => true,
				'label'       => 'Price',
				'step'        => 0.01,
				'max'         => 99999,
				'description' => 'Product price'
			],

			'product_type' => [
				'type'  => 'select',
				'label' => 'Product Type',
				'options' => [
					'REGULAR'       => 'Regular Product',
					'SERVICE'       => 'Service',
					'DIGITAL'       => 'Digital Product',
					'FOOD_AND_BEV'  => 'Food & Beverage',
					'EVENT'         => 'Event/Ticket',
					'SUBSCRIPTION'  => 'Subscription',
					'DONATION'      => 'Donation'
				],
				'default' => $config['integrations']['helcim']['content_type'] ?? 'REGULAR'
			],

			'cart_quantity' => [
				'type'   => 'number',
				'label'  => 'Quantity',
				'hidden' => true,
			],

			// Tax & Shipping
			'tax_exempt' => [
				'type'    => 'true_false',
				'label'   => 'Tax Exempt',
				'section' => 'helcim-tax'
			],

			'shipping_required' => [
				'type'    => 'true_false',
				'label'   => 'Shipping Required',
				'section' => 'helcim-shipping'
			],

			'shipping_weight' => [
				'type'        => 'number',
				'label'       => 'Shipping Weight (kg)',
				'step'        => 0.01,
				'section'     => 'helcim-shipping',
				'condition'   => [
					'field'    => 'shipping_required',
					'operator' => '==',
					'value'    => true
				]
			],

			// Availability
			'available_online' => [
				'type'    => 'true_false',
				'label'   => 'Available Online',
				'section' => 'helcim-availability',
				'default' => true
			],

			'available_for_pickup' => [
				'type'    => 'true_false',
				'label'   => 'Available for Pickup',
				'section' => 'helcim-availability',
				'default' => true
			],

			'available_for_delivery' => [
				'type'    => 'true_false',
				'label'   => 'Available for Delivery',
				'section' => 'helcim-availability',
				'default' => false
			],

			'_helcim_sku' => [
				'type'        => 'text',
				'label'       => 'SKU',
				'description' => 'Stock keeping unit',
				'section'     => 'helcim-config'
			],

			// Product Variations
			'product_variations' => [
				'type'        => 'repeater',
				'label'       => 'Product Variations',
				'description' => 'Different versions of this product',
				'add_label'   => 'Add Variation',
				'section'     => 'variations',
				'fields'      => $this->getVariationFields($config)
			],

			// Product Options
			'options' => [
				'type'   => 'group',
				'label'  => 'Product Options',
				'section'=> 'helcim-options',
				'fields' => [
					'max_order' => [
						'type'    => 'number',
						'label'   => 'Maximum per order',
						'default' => 50
					],
					'min_order' => [
						'type'    => 'number',
						'label'   => 'Minimum per order',
						'default' => 0,
					],
					'step' => [
						'type'    => 'number',
						'label'   => 'Order increment',
						'default' => 1,
					],
					'preparation_time' => [
						'type'        => 'number',
						'label'       => 'Preparation time (minutes)',
						'description' => 'Time needed to prepare this item',
						'condition'   => [
							'field'    => 'product_type',
							'operator' => 'in',
							'value'    => ['FOOD_AND_BEV', 'SERVICE']
						]
					]
				]
			],

			// Subscription Fields
			'subscription_settings' => [
				'type'      => 'group',
				'label'     => 'Subscription Settings',
				'section'   => 'helcim-subscription',
				'condition' => [
					'field'    => 'product_type',
					'operator' => '==',
					'value'    => 'SUBSCRIPTION'
				],
				'fields' => [
					'billing_cycle' => [
						'type'    => 'select',
						'label'   => 'Billing Cycle',
						'options' => [
							'daily'     => 'Daily',
							'weekly'    => 'Weekly',
							'monthly'   => 'Monthly',
							'quarterly' => 'Quarterly',
							'yearly'    => 'Yearly'
						],
						'default' => 'monthly'
					],
					'trial_period' => [
						'type'        => 'number',
						'label'       => 'Trial Period (days)',
						'description' => 'Free trial period before billing starts',
						'default'     => 0
					],
					'setup_fee' => [
						'type'        => 'number',
						'label'       => 'Setup Fee',
						'step'        => 0.01,
						'description' => 'One-time setup fee'
					]
				]
			],

			// Food & Beverage Specific
			'food_settings' => [
				'type'      => 'group',
				'label'     => 'Food & Beverage Settings',
				'section'   => 'helcim-food',
				'condition' => [
					'field'    => 'product_type',
					'operator' => '==',
					'value'    => 'FOOD_AND_BEV'
				],
				'fields' => [
					'ingredients' => [
						'type'        => 'textarea',
						'label'       => 'Ingredients',
						'description' => 'List ingredients (comma separated)'
					],
					'allergens' => [
						'type'        => 'checkbox_list',
						'label'       => 'Allergens',
						'options'     => [
							'gluten'   => 'Contains Gluten',
							'dairy'    => 'Contains Dairy',
							'nuts'     => 'Contains Nuts',
							'soy'      => 'Contains Soy',
							'eggs'     => 'Contains Eggs',
							'seafood'  => 'Contains Seafood'
						]
					],
					'dietary_options' => [
						'type'    => 'checkbox_list',
						'label'   => 'Dietary Options',
						'options' => [
							'vegetarian'   => 'Vegetarian',
							'vegan'        => 'Vegan',
							'gluten_free'  => 'Gluten Free',
							'dairy_free'   => 'Dairy Free',
							'keto'         => 'Keto Friendly',
							'halal'        => 'Halal',
							'kosher'       => 'Kosher'
						]
					],
					'spice_level' => [
						'type'    => 'range',
						'label'   => 'Spice Level',
						'min'     => 0,
						'max'     => 5,
						'default' => 0
					],
					'serving_size' => [
						'type'        => 'text',
						'label'       => 'Serving Size',
						'description' => 'e.g., "Serves 2-3"'
					]
				]
			],

			// Service Specific
			'service_settings' => [
				'type'      => 'group',
				'label'     => 'Service Settings',
				'section'   => 'helcim-service',
				'condition' => [
					'field'    => 'product_type',
					'operator' => '==',
					'value'    => 'SERVICE'
				],
				'fields' => [
					'service_duration' => [
						'type'        => 'number',
						'label'       => 'Duration (minutes)',
						'description' => 'Service duration in minutes'
					],
					'booking_required' => [
						'type'  => 'true_false',
						'label' => 'Booking Required'
					],
					'capacity' => [
						'type'        => 'number',
						'label'       => 'Service Capacity',
						'description' => 'Maximum number of customers per service'
					],
					'staff_required' => [
						'type'        => 'number',
						'label'       => 'Staff Required',
						'description' => 'Number of staff needed',
						'default'     => 1
					]
				]
			],

			// Event Specific
			'event_settings' => [
				'type'      => 'group',
				'label'     => 'Event Settings',
				'section'   => 'helcim-event',
				'condition' => [
					'field'    => 'product_type',
					'operator' => '==',
					'value'    => 'EVENT'
				],
				'fields' => [
					'event_date' => [
						'type'  => 'datetime',
						'label' => 'Event Date & Time'
					],
					'event_location' => [
						'type'  => 'text',
						'label' => 'Event Location'
					],
					'max_attendees' => [
						'type'  => 'number',
						'label' => 'Maximum Attendees'
					],
					'early_bird_price' => [
						'type'        => 'number',
						'label'       => 'Early Bird Price',
						'step'        => 0.01,
						'description' => 'Discounted price for early registrations'
					],
					'early_bird_deadline' => [
						'type'  => 'date',
						'label' => 'Early Bird Deadline'
					]
				]
			]
		];

		// Add inventory fields if configured
		if ($config['hasInventory'] ?? false) {
			$fields['_helcim_inventory'] = [
				'type'     => 'number',
				'label'    => 'Inventory',
				'bulkEdit' => true,
				'section'  => 'inventory'
			];

			$fields['track_inventory'] = [
				'type'    => 'true_false',
				'label'   => 'Track Inventory',
				'section' => 'inventory',
				'default' => true
			];

			$fields['low_stock_threshold'] = [
				'type'        => 'number',
				'label'       => 'Low Stock Alert',
				'description' => 'Alert when stock falls below this level',
				'section'     => 'inventory',
				'default'     => 5
			];

			$fields['product_variations']['fields']['inventory'] = [
				'type'        => 'number',
				'label'       => 'Stock Quantity',
				'description' => 'Current stock for this variation'
			];
		}

		return $fields;
	}

	/**
	 * Get variation fields
	 */
	private function getVariationFields(array $config): array
	{
		$fields = [
			'name' => [
				'type'        => 'text',
				'label'       => 'Variation Name',
				'description' => 'e.g., "Small", "Large", "Red"'
			],
			'price' => [
				'type'        => 'number',
				'label'       => 'Price',
				'step'        => 0.01,
				'max'         => 99999,
				'description' => 'Price for this variation'
			],
			'sku' => [
				'type'        => 'text',
				'label'       => 'SKU',
				'description' => 'Stock keeping unit for this variation'
			],
			'track_inventory' => [
				'type'  => 'true_false',
				'label' => 'Track Inventory',
			],
			'_helcim_variation_id' => [
				'type'        => 'text',
				'label'       => 'Helcim Variation ID',
				'description' => 'Helcim ID for this variation',
				'hidden'      => true
			],
			'_helcim_last_sync' => [
				'type'   => 'datetime',
				'label'  => 'Last Sync',
				'hidden' => true
			],
			'options' => [
				'type'        => 'group',
				'label'       => 'Variation Options',
				'collapsible' => true,
				'fields'      => [
					'color' => [
						'type'        => 'color',
						'label'       => 'Color',
						'description' => 'Visual color for this variation'
					],
					'size' => [
						'type'    => 'select',
						'label'   => 'Size',
						'options' => [
							''      => 'N/A',
							'xs'    => 'Extra Small',
							's'     => 'Small',
							'm'     => 'Medium',
							'l'     => 'Large',
							'xl'    => 'Extra Large',
							'xxl'   => '2X Large',
							'custom'=> 'Custom'
						]
					],
					'custom_size' => [
						'type'        => 'text',
						'label'       => 'Custom Size',
						'condition'   => [
							'field'    => 'size',
							'operator' => '==',
							'value'    => 'custom'
						]
					],
					'weight' => [
						'type'        => 'number',
						'label'       => 'Weight (kg)',
						'step'        => 0.01,
						'description' => 'Weight of this variation'
					],
					'dimensions' => [
						'type'   => 'group',
						'label'  => 'Dimensions',
						'fields' => [
							'length' => [
								'type'  => 'number',
								'label' => 'Length (cm)',
								'step'  => 0.1
							],
							'width' => [
								'type'  => 'number',
								'label' => 'Width (cm)',
								'step'  => 0.1
							],
							'height' => [
								'type'  => 'number',
								'label' => 'Height (cm)',
								'step'  => 0.1
							]
						]
					]
				]
			]
		];

		// Add service-specific variation fields
		$product_type = $_POST['product_type'] ?? $config['integrations']['helcim']['content_type'] ?? 'REGULAR';

		if ($product_type === 'SERVICE') {
			$fields['service_duration'] = [
				'type'        => 'number',
				'label'       => 'Duration (minutes)',
				'description' => 'Duration for this service variation'
			];

			$fields['available_for_booking'] = [
				'type'  => 'true_false',
				'label' => 'Available for Booking'
			];
		}

		if ($product_type === 'FOOD_AND_BEV') {
			$fields['portion_size'] = [
				'type'    => 'select',
				'label'   => 'Portion Size',
				'options' => [
					'small'    => 'Small',
					'regular'  => 'Regular',
					'large'    => 'Large',
					'family'   => 'Family Size'
				]
			];

			$fields['calories'] = [
				'type'        => 'number',
				'label'       => 'Calories',
				'description' => 'Calorie count for this variation'
			];
		}

		if ($product_type === 'DIGITAL') {
			$fields['download_limit'] = [
				'type'        => 'number',
				'label'       => 'Download Limit',
				'description' => 'Maximum number of downloads',
				'default'     => -1
			];

			$fields['expiry_days'] = [
				'type'        => 'number',
				'label'       => 'Access Duration (days)',
				'description' => 'Days until download expires',
				'default'     => 0
			];
		}

		return $fields;
	}
}