/**
 * Feature Flag Constants
 *
 */
/**
 * Feature flags for authentication providers and other features
 */
export declare const FEATURES: {
    /**
     * Enable Google OAuth authentication
     */
    readonly AUTH_GOOGLE: true;
    /**
     * Enable Discord OAuth authentication (dev only)
     */
    readonly AUTH_DISCORD: boolean;
    /**
     * Enable Facebook OAuth authentication
     */
    readonly AUTH_FACEBOOK: false;
    /**
     * Enable GitHub OAuth authentication
     */
    readonly AUTH_GITHUB: true;
};
/**
 * Default backend configuration for feature flags.
 * Optimized for server-side usage with reasonable defaults.
 */
export declare const DEFAULT_BACKEND_CONFIG: {
    readonly provider: "database";
    readonly isCacheEnabled: true;
    readonly cacheTtl: 300;
    readonly refreshInterval: 60;
    readonly shouldFallbackToDefaults: true;
    readonly isLoggingEnabled: boolean;
};
/**
 * Default frontend configuration for feature flags.
 * Optimized for client-side usage with reasonable defaults.
 */
export declare const DEFAULT_FRONTEND_CONFIG: {
    readonly provider: "memory";
    readonly isCacheEnabled: true;
    readonly cacheTtl: 300;
    readonly refreshInterval: 0;
    readonly shouldFallbackToDefaults: true;
    readonly isLoggingEnabled: false;
};
/**
 * Default file check interval for file watcher debouncing (in milliseconds)
 * Prevents rapid reloads when files are saved multiple times quickly
 * @default 100
 */
export declare const FILE_CHECK_INTERVAL_DEFAULT = 100;
/**
 * Default cache TTL for feature flags (in seconds)
 * @default 300 (5 minutes)
 */
export declare const FEATURE_FLAG_CACHE_TTL_DEFAULT = 300;
/**
 * Default cleanup interval for memory cache (in milliseconds)
 * @default 60000 (1 minute)
 */
export declare const CACHE_CLEANUP_INTERVAL_DEFAULT = 60000;
/**
 * Default maximum cache size for memory strategy
 * @default 1000
 */
export declare const CACHE_MAX_SIZE_DEFAULT = 1000;
/**
 * Percentage of cache entries to evict when cache is full
 * @default 0.1 (10%)
 */
export declare const CACHE_EVICTION_PERCENTAGE = 0.1;
/**
 * Feature flag provider types
 */
export declare const FEATURE_FLAG_PROVIDERS: {
    readonly MEMORY: "memory";
    readonly FILE: "file";
    readonly REDIS: "redis";
    readonly API: "api";
    readonly DATABASE: "database";
};
/**
 * Feature flag file formats
 */
export declare const FEATURE_FLAG_FILE_FORMATS: {
    readonly JSON: "json";
    readonly YAML: "yaml";
};
/**
 * Default file paths for feature flag configuration
 */
export declare const FEATURE_FLAG_FILE_PATHS: {
    readonly DEFAULT: "src/config/feature-provider.json";
    readonly JSON_EXAMPLE: "src/config/feature-provider.json.example";
    readonly YAML_EXAMPLE: "src/config/feature-provider.yaml.example";
};
/**
 * Feature flag evaluation reasons
 */
export declare const FEATURE_FLAG_EVALUATION_REASONS: {
    readonly DEFAULT: "default";
    readonly OVERRIDE: "override";
    readonly RULE_MATCH: "rule_match";
    readonly FLAG_DISABLED: "flag_disabled";
    readonly ERROR: "error";
};
//# sourceMappingURL=features.d.ts.map