/**
 * API Contract Validator - Validates APIs against defined contracts
 *
 * Prevents frontend-backend authentication mismatches like the 401 bug
 * that slipped into Shop.Solar production.
 *
 * 3-Phase Validation:
 * 1. Static Analysis - Code analysis without execution
 * 2. Runtime Testing - Execute requests in different auth states
 * 3. Authentication Matrix - Comprehensive auth state testing
 */
import { APIContract, APIContractValidationResult, APIContractValidatorConfig } from '../types/api-contracts';
export declare class APIContractValidator {
    private config;
    constructor(config: APIContractValidatorConfig);
    /**
     * Validate a single API contract
     */
    validateContract(contract: APIContract): Promise<APIContractValidationResult>;
    /**
     * Phase 1: Static Analysis
     * Analyze code without execution
     */
    private validateStaticContract;
    /**
     * Phase 2: Runtime Testing
     * Execute requests in different auth states
     */
    private validateRuntimeContract;
    /**
     * Find backend route implementation
     */
    private findBackendImplementation;
    /**
     * Detect backend framework from file path and content
     */
    private detectFramework;
    /**
     * Analyze backend authentication patterns
     */
    private analyzeBackendAuth;
    /**
     * Find frontend API usage
     */
    private findFrontendUsage;
    /**
     * Recursively search directory for API usage
     */
    private searchDirectoryForAPIUsage;
    /**
     * Detect if authentication header is included
     */
    private detectAuthHeader;
    /**
     * Detect if error handling exists
     */
    private detectErrorHandling;
    /**
     * Detect auth check in context
     */
    private detectAuthCheck;
    /**
     * Detect component context (public/protected)
     */
    private detectContext;
    /**
     * Extract HTTP method from line
     */
    private extractMethod;
    /**
     * Test endpoint in specific auth state
     */
    private testEndpoint;
    /**
     * Get authentication headers for auth state
     */
    private getAuthHeaders;
}
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