<?php
/**
 * Field Types Class
 * Defines all available field types for Classic Checkout
 */

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

class CFEP_Field_Types {
    
    /**
     * Get all available field types
     * 
     * @return array Field types with labels and metadata
     */
    public static function get_field_types() {
        return array(
            // Basic Text Inputs
            'text' => array(
                'label' => __('Text', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📝',
                'category' => 'basic',
                'description' => __('Single line text input', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('placeholder', 'default', 'validation'),
            ),
            'textarea' => array(
                'label' => __('Textarea', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📄',
                'category' => 'basic',
                'description' => __('Multi-line text input', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('placeholder', 'default', 'rows'),
            ),
            'number' => array(
                'label' => __('Number', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '🔢',
                'category' => 'basic',
                'description' => __('Numeric input with min/max', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('placeholder', 'default', 'min', 'max', 'step'),
            ),
            'altemail' => array(
                'label' => __('Alternate Email', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📧',
                'category' => 'basic',
                'description' => __('Email address with validation', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('placeholder', 'default', 'validation'),
            ),
            'altphone' => array(
                'label' => __('Alternate Phone', 'akz-checkout-fields-manager-for-woocommerce'),
				'type' => 'tel',  // HTML5 type
                'icon' => '📞',
                'category' => 'basic',
                'description' => __('Phone number input', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('placeholder', 'default', 'validation'),
            ),
            'url' => array(
                'label' => __('URL', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '🔗',
                'category' => 'basic',
                'description' => __('Website URL with validation', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('placeholder', 'default', 'validation'),
            ),
            'password' => array(
                'label' => __('Password', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '🔒',
                'category' => 'basic',
                'description' => __('Password input (hidden)', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('placeholder'),
            ),
            'hidden' => array(
                'label' => __('Hidden', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '👻',
                'category' => 'basic',
                'description' => __('Hidden field (not visible)', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('default'),
            ),
            
            // Selection Fields
            'select' => array(
                'label' => __('Select', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📋',
                'category' => 'selection',
                'description' => __('Dropdown selection', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('options', 'default'),
            ),
            'multiselect' => array(
                'label' => __('Multi Select', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '☑️',
                'category' => 'selection',
                'description' => __('Multiple selection dropdown', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('options', 'default'),
            ),
            'radio' => array(
                'label' => __('Radio', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '🔘',
                'category' => 'selection',
                'description' => __('Radio button group', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('options', 'default'),
            ),
            'checkbox' => array(
                'label' => __('Checkbox', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '✅',
                'category' => 'selection',
                'description' => __('Single checkbox', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('default', 'text'),
            ),
            'checkboxgroup' => array(
                'label' => __('Checkbox Group', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '☑️',
                'category' => 'selection',
                'description' => __('Multiple checkboxes', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('options', 'default'),
            ),
            
            // Date & Time Fields
            'date' => array(
                'label' => __('Date', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📅',
                'category' => 'datetime',
                'description' => __('Date picker (YYYY-MM-DD)', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('default', 'min', 'max'),
            ),
            'datetime-local' => array(
                'label' => __('DateTime Local', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '🕐',
                'category' => 'datetime',
                'description' => __('Date and time picker', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('default', 'min', 'max'),
            ),
            'time' => array(
                'label' => __('Time', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '⏰',
                'category' => 'datetime',
                'description' => __('Time picker (HH:MM)', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('default', 'min', 'max'),
            ),
            'month' => array(
                'label' => __('Month', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📆',
                'category' => 'datetime',
                'description' => __('Month and year picker', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('default', 'min', 'max'),
            ),
            'week' => array(
                'label' => __('Week', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📊',
                'category' => 'datetime',
                'description' => __('Week picker', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('default', 'min', 'max'),
            ),
            
            // Display Only Fields
            'heading' => array(
                'label' => __('Heading', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📌',
                'category' => 'display',
                'description' => __('Section heading (no input)', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('text', 'class'),
            ),
            'paragraph' => array(
                'label' => __('Paragraph', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📄',
                'category' => 'display',
                'description' => __('Text paragraph (no input)', 'akz-checkout-fields-manager-for-woocommerce'),
                'supports' => array('text', 'class'),
            ),
        );
    }
    
    /**
     * Get field type categories
     * 
     * @return array Categories with labels
     */
    public static function get_categories() {
        return array(
            'basic' => array(
                'label' => __('Basic Fields', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📝',
            ),
            'selection' => array(
                'label' => __('Selection Fields', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '☑️',
            ),
            'datetime' => array(
                'label' => __('Date & Time', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📅',
            ),
            'display' => array(
                'label' => __('Display Only', 'akz-checkout-fields-manager-for-woocommerce'),
                'icon' => '📌',
            ),
        );
    }
    
    /**
     * Get field type by key
     * 
     * @param string $type Field type key
     * @return array|null Field type data or null
     */
    public static function get_field_type($type) {
        $types = self::get_field_types();
        return isset($types[$type]) ? $types[$type] : null;
    }
    
    /**
     * Check if field type exists
     * 
     * @param string $type Field type key
     * @return bool
     */
    public static function field_type_exists($type) {
        $types = self::get_field_types();
        return isset($types[$type]);
    }
    
    /**
     * Get field types by category
     * 
     * @param string $category Category key
     * @return array Field types in category
     */
    public static function get_field_types_by_category($category) {
        $types = self::get_field_types();
        $filtered = array();
        
        foreach ($types as $key => $type) {
            if (isset($type['category']) && $type['category'] === $category) {
                $filtered[$key] = $type;
            }
        }
        
        return $filtered;
    }
    
    /**
     * Validate field type
     * 
     * @param string $type Field type to validate
     * @return string Valid field type or 'text' as fallback
     */
    public static function validate_field_type($type) {
        return self::field_type_exists($type) ? $type : 'text';
    }
    
    /**
     * Sanitize field data before saving
     * 
     * @param array $data Raw field data
     * @return array Sanitized field data
     */
    public static function sanitize_field_data($data) {
        // Check if this is an existing field (for backward compatibility)
        $is_existing = !empty($data['id']) || (!empty($data['field_key']) && self::field_exists($data['field_key']));
        
        // Use CFEP_Security for comprehensive sanitization
        $sanitized = CFEP_Security::sanitize_field_data($data, $is_existing);
        
        // Validate field type against our whitelist
        $sanitized['field_type'] = self::validate_field_type($sanitized['field_type']);
        
        return $sanitized;
    }
    
    /**
     * Check if field exists (for backward compatibility check)
     */
    private static function field_exists($field_key) {
        global $wpdb;
        $table = $wpdb->prefix . 'cfep_fields';
        
        $cache_key = 'cfep_field_exists_' . $field_key;
        $exists = wp_cache_get($cache_key, 'cfep');
        if ($exists === false) {
            // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared, PluginCheck.Security.DirectDB.UnescapedDBParameter
            $exists = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $table WHERE field_key = %s", $field_key ) );
            wp_cache_set($cache_key, $exists, 'cfep', 300);
        }
        
        return $exists > 0;
    }
}