import { BasePreset, ProcessedEntity } from '../../middleware/services/flat-formatter';
/**
 * Product entity - Example demonstrating COMPLEX FlatFormatter capabilities
 *
 * This example shows:
 * - **Nested objects** (pricing, metadata)
 * - **Arrays** (features, tags, reviews)
 * - **Optional fields** with fallbacks
 * - **Complex transformations** (joining, aggregating, calculating)
 * - **String composition** (combining multiple fields)
 *
 * Use this as a template for entities with complex structures.
 */
export interface Product {
    id?: string;
    name: string;
    description: string;
    category: string;
    pricing: {
        basePrice: number;
        currency: string;
        discountPercent?: number;
        taxRate?: number;
    };
    features?: string[];
    tags?: string[];
    metadata?: {
        manufacturer: string;
        origin: string;
        certifications?: string[];
    };
    reviews?: Array<{
        rating: number;
        comment: string;
        author?: string;
    }>;
    inStock?: boolean;
    quantity?: number;
}
/**
 * ProcessedProduct - Normalized, LLM-ready structure
 *
 * Shows how preprocessing transforms complex data:
 * - Arrays joined to strings
 * - Nested objects flattened
 * - Calculated fields added
 * - Everything normalized to strings
 */
export interface ProcessedProduct extends ProcessedEntity {
    [key: string]: string | number | boolean;
    Name: string;
    Description: string;
    Category: string;
    'Price': string;
    'Discount': string;
    'Final Price': string;
    'Features': string;
    'Tags': string;
    'Manufacturer': string;
    'Origin': string;
    'Certifications': string;
    'Average Rating': string;
    'Review Count': string;
    'Sample Reviews': string;
    'Availability': string;
}
/**
 * ProductPreset - Demonstrates advanced preprocessing
 *
 * Key techniques:
 * 1. Array handling (join, map, filter)
 * 2. Nested object access with optional chaining
 * 3. Calculations (discounts, averages)
 * 4. String composition
 * 5. Fallback values
 */
export declare class ProductPreset extends BasePreset<Product, ProcessedProduct> {
    constructor();
    protected preprocessEntity(product: Product): ProcessedProduct;
}
/**
 * Singleton instance for global use
 *
 * Usage:
 * ```typescript
 * import { productPreset } from 'ollama-middleware';
 *
 * const product = {
 *   name: 'Wireless Mouse',
 *   pricing: { basePrice: 29.99, currency: 'USD', discountPercent: 15 },
 *   features: ['Bluetooth', 'Ergonomic', '3-year warranty'],
 *   // ... more fields
 * };
 *
 * const formatted = productPreset.formatForLLM(product, "## PRODUCT:");
 * ```
 */
export declare const productPreset: ProductPreset;
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