import { ExportConfig } from './export-types';
import { IExportConfigValidator } from './interfaces';
export declare class ExportConfigManager implements IExportConfigValidator {
    static createDefault(): ExportConfig;
    static createFromEnv(): ExportConfig;
    static mergeWithDefaults(userConfig: Partial<ExportConfig>): ExportConfig;
    static validateConfig(config: ExportConfig): {
        isValid: boolean;
        errors: string[];
    };
    validateConfig(config: ExportConfig): Promise<{
        isValid: boolean;
        errors: string[];
    }>;
    validateConfigSync(config: ExportConfig): {
        isValid: boolean;
        errors: string[];
    };
    validateAuthentication(): Promise<boolean>;
    static migrateExportFormat(format: string): 'native' | 'html' | 'markdown';
    static sanitizeConfig(config: ExportConfig): ExportConfig;
    static getConfigSummary(config: ExportConfig): Record<string, string | number | boolean>;
    static exportConfig(config: ExportConfig): string;
    static importConfig(configJson: string): ExportConfig;
    static createFromPreset(preset: 'conservative' | 'balanced' | 'aggressive' | 'fast' | 'comprehensive'): ExportConfig;
    static createPreset(preset: 'conservative' | 'balanced' | 'aggressive' | 'fast' | 'comprehensive'): ExportConfig;
    static saveConfigToFile(config: ExportConfig, filePath: string): Promise<void>;
    static loadConfigFromFile(filePath: string): Promise<ExportConfig>;
    static createForScenario(scenario: 'personal' | 'team' | 'archive' | 'migration'): ExportConfig;
    static estimateExportTime(config: ExportConfig, documentCount: number): {
        estimatedMinutes: number;
        estimatedSeconds: number;
        documentsPerMinute: number;
        factors: string[];
    };
    static getRecommendedConfig(documentCount: number): {
        config: ExportConfig;
        reasoning: string;
    };
}
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