/**
 * Environment Variable Manager for OATS
 *
 * Handles framework detection and environment variable injection
 * for seamless backend URL configuration across different frontend frameworks
 */
import type { RuntimeConfig } from '../../types/config.types.js';
export interface FrameworkEnvConfig {
    framework: string;
    envPrefix: string;
    description: string;
}
export declare class EnvManager {
    private logger;
    private static readonly FRAMEWORK_CONFIGS;
    constructor();
    /**
     * Detect frontend framework from package.json
     */
    detectFramework(projectPath: string): string;
    /**
     * Get the appropriate env prefix for a framework
     */
    private getEnvPrefix;
    /**
     * Generate OATS environment variables for frontend service
     */
    generateFrontendEnvVars(frontendPath: string, runtimeConfig: RuntimeConfig): Record<string, string>;
    /**
     * Get a user-friendly framework description
     */
    getFrameworkDescription(framework: string): string;
    /**
     * Generate environment variables for any service type
     * This can be extended for backend services, workers, etc.
     */
    generateServiceEnvVars(serviceType: 'frontend' | 'backend' | 'worker', servicePath: string, runtimeConfig: RuntimeConfig): Record<string, string>;
}
export declare const envManager: EnvManager;
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