/**
 * Template Engine
 *
 * Handlebars-based template engine for rich context generation.
 */
import type { TemplateRenderOptions, TemplateRenderResult } from './types.js';
import type { DatabaseClient } from '../db/client.js';
/**
 * Template engine class
 *
 * Manages Handlebars templates and rendering.
 */
export declare class TemplateEngine {
    private handlebars;
    private templateCache;
    private partialsCache;
    private templatesDir;
    private k0ntextVersion;
    constructor(k0ntextVersion: string);
    /**
     * Render a template with data
     *
     * @param options - Template render options
     * @param db - Database client
     * @param projectRoot - Project root directory
     * @returns Rendered content
     */
    render(options: TemplateRenderOptions, db: DatabaseClient, projectRoot: string): Promise<TemplateRenderResult>;
    /**
     * Load a template by name
     *
     * @param templateName - Name of the template (e.g., 'claude', 'copilot')
     * @param loadPartials - Whether to load partials
     * @returns Compiled template
     */
    private loadTemplate;
    /**
     * Load all partials from the partials directory
     */
    private loadPartials;
    /**
     * Merge custom data into template data
     *
     * @param base - Base template data
     * @param custom - Custom data to merge
     * @returns Merged data
     */
    private mergeData;
    /**
     * Check if a template exists
     *
     * @param templateName - Name of the template
     * @returns True if template file exists
     */
    hasTemplate(templateName: string): Promise<boolean>;
    /**
     * Get list of available templates
     *
     * @returns Array of template names
     */
    getAvailableTemplates(): Promise<string[]>;
    /**
     * Clear template cache
     */
    clearCache(): void;
}
/**
 * Create a template engine instance
 *
 * @param k0ntextVersion - Current k0ntext version
 * @returns Template engine instance
 */
export declare function createTemplateEngine(k0ntextVersion: string): TemplateEngine;
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