/**
 * Schema Generator
 *
 * This module generates JSON-LD structured data markup for WordPress content.
 * It supports all major Schema.org types and provides intelligent content extraction
 * and schema optimization for better search engine understanding.
 *
 * Supported Schema Types:
 * - Article, BlogPosting, NewsArticle
 * - Product, Offer, AggregateRating
 * - FAQ, Question, Answer
 * - HowTo, HowToStep, HowToDirection
 * - Organization, LocalBusiness, Person
 * - Website, WebPage, BreadcrumbList
 * - Event, Recipe, Course, VideoObject
 *
 * @since 2.7.0
 */
import type { SchemaMarkup, SEOToolParams } from "../../../types/seo.js";
import type { WordPressPost } from "../../../types/wordpress.js";
/**
 * Schema generation options
 */
interface SchemaOptions {
    /** Include author information */
    includeAuthor?: boolean;
    /** Include organization data */
    includeOrganization?: boolean;
    /** Include breadcrumbs */
    includeBreadcrumbs?: boolean;
    /** Include images */
    includeImages?: boolean;
    /** Custom schema properties to merge */
    customProperties?: Record<string, unknown>;
    /** Site-specific configuration */
    siteConfig?: {
        name?: string;
        url?: string;
        logo?: string;
        description?: string;
        socialProfiles?: string[];
        contactInfo?: {
            telephone?: string;
            email?: string;
            address?: string;
        };
    };
}
/**
 * Schema Generator Class
 */
export declare class SchemaGenerator {
    private logger;
    constructor();
    /**
     * Generate schema markup for a WordPress post
     */
    generateSchema(post: WordPressPost, params: SEOToolParams, options?: SchemaOptions): Promise<SchemaMarkup>;
    /**
     * Generate Article schema markup
     */
    private generateArticleSchema;
    /**
     * Generate Product schema markup
     */
    private generateProductSchema;
    /**
     * Generate FAQ schema markup
     */
    private generateFAQSchema;
    /**
     * Generate HowTo schema markup
     */
    private generateHowToSchema;
    /**
     * Generate Organization schema markup
     */
    private generateOrganizationSchema;
    /**
     * Generate LocalBusiness schema markup
     */
    private generateLocalBusinessSchema;
    /**
     * Generate Website schema markup
     */
    private generateWebsiteSchema;
    /**
     * Generate BreadcrumbList schema markup
     */
    private generateBreadcrumbSchema;
    /**
     * Generate Event schema markup
     */
    private generateEventSchema;
    /**
     * Generate Recipe schema markup
     */
    private generateRecipeSchema;
    /**
     * Generate Course schema markup
     */
    private generateCourseSchema;
    /**
     * Generate VideoObject schema markup
     */
    private generateVideoSchema;
    /**
     * Generate Person schema markup
     */
    private generatePersonSchema;
    /**
     * Generate Review schema markup
     */
    private generateReviewSchema;
    /**
     * Extract plain text from HTML content
     */
    private extractTextContent;
    /**
     * Extract images from HTML content
     */
    private extractImages;
    /**
     * Count words in text
     */
    private countWords;
    /**
     * Get author name from post
     */
    private getAuthorName;
    /**
     * Get author URL from post
     */
    private getAuthorUrl;
    /**
     * Get publisher information
     */
    private getPublisherInfo;
    /**
     * Extract product information from content
     */
    private extractProductInfo;
    /**
     * Extract FAQ items from content
     */
    private extractFAQItems;
    /**
     * Extract HowTo steps from content
     */
    private extractHowToSteps;
    /**
     * Extract duration from content
     */
    private extractDuration;
    /**
     * Extract supplies from content
     */
    private extractSupplies;
    /**
     * Extract tools from content
     */
    private extractTools;
    /**
     * Extract business information from content
     */
    private extractBusinessInfo;
    /**
     * Extract breadcrumbs from post
     */
    private extractBreadcrumbs;
    /**
     * Extract event information from content
     */
    private extractEventInfo;
    /**
     * Extract recipe information from content
     */
    private extractRecipeInfo;
    /**
     * Extract course information from content
     */
    private extractCourseInfo;
    /**
     * Extract video information from content
     */
    private extractVideoInfo;
    /**
     * Extract person information from content
     */
    private extractPersonInfo;
    /**
     * Extract review information from content
     */
    private extractReviewInfo;
    /**
     * Validate generated schema markup
     */
    validateSchema(schema: SchemaMarkup): {
        valid: boolean;
        errors: string[];
    };
}
export {};
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