/**
 * Type definitions for email verification functionality
 * Based on the original Rust implementation's type structure
 */
import type { Cache } from './cache-interface';
/**
 * Email providers with enhanced type safety
 */
export declare enum EmailProvider {
    gmail = "gmail",
    hotmailB2b = "hotmail_b2b",
    hotmailB2c = "hotmail_b2c",
    proofpoint = "proofpoint",
    mimecast = "mimecast",
    yahoo = "yahoo",
    everythingElse = "everything_else"
}
/**
 * Provider-specific configuration and capabilities
 */
export interface ProviderConfig {
    provider: EmailProvider;
    domains: readonly string[];
    capabilities: {
        plusAddressing: boolean;
        dotsSignificant: boolean;
        underscoresAllowed: boolean;
        maxLocalLength: number;
        supportsApi: boolean;
        supportsHeadless: boolean;
    };
    smtpSettings: {
        preferredPorts: readonly number[];
        connectTimeout: number;
        readTimeout: number;
        requiresTls?: boolean;
        customHeaders?: Record<string, string>;
    };
}
/**
 * SMTP verification result with enhanced typing
 */
export interface SmtpVerificationResult {
    canConnectSmtp: boolean;
    hasFullInbox: boolean;
    isCatchAll: boolean;
    isDeliverable: boolean;
    isDisabled: boolean;
    error?: string;
    providerUsed?: EmailProvider;
    success?: boolean;
    canConnect?: boolean;
    responseCode?: number;
    providerSpecific?: {
        errorCode?: string;
        actionRequired?: string;
        details?: string;
    };
}
/**
 * MX record lookup result
 */
export interface MxLookupResult {
    success: boolean;
    records: Array<{
        exchange: string;
        priority: number;
    }>;
    lowestPriority?: {
        exchange: string;
        priority: number;
    };
    error?: string;
    code?: string;
}
/**
 * Email syntax validation result
 */
export interface EmailSyntaxResult {
    isValid: boolean;
    email?: string;
    localPart?: string;
    domain?: string;
    error?: string;
}
/**
 * Complete check-if-email-exists result
 */
export interface CheckIfEmailExistsCoreResult {
    email: string;
    isReachable: 'safe' | 'invalid' | 'risky' | 'unknown';
    syntax: {
        isValid: boolean;
        domain?: string;
        localPart?: string;
        error?: string;
    };
    mx: MxLookupResult | null;
    smtp: SmtpVerificationResult | null;
    misc: {
        isDisposable: boolean;
        isFree: boolean;
        providerType: EmailProvider;
    } | null;
    duration: number;
    error?: string;
}
/**
 * SMTP connection options with enhanced typing
 */
export interface CheckIfEmailExistsSmtpOptions {
    timeout?: number;
    port?: number;
    retries?: number;
    fromEmail?: string;
    helloName?: string;
    useStartTls?: boolean;
    useSsl?: boolean;
    hostName?: string;
    rejectUnauthorized?: boolean;
}
/**
 * Yahoo API verification options
 */
export interface YahooApiOptions {
    timeout?: number;
    userAgent?: string;
    retryAttempts?: number;
    proxyUrl?: string;
    headers?: Record<string, string>;
    apiUrl?: string;
}
/**
 * Headless browser verification options
 */
export interface HeadlessOptions {
    webdriverEndpoint?: string;
    timeout?: number;
    retryAttempts?: number;
    screenshot?: boolean;
    viewport?: {
        width: number;
        height: number;
    };
    userAgent?: string;
    acceptInsecureCerts?: boolean;
}
/**
 * Error parsing types
 */
export interface ParsedSmtpError {
    type: 'disabled' | 'full_inbox' | 'unknown' | 'invalid' | 'catch_all' | 'rate_limited' | 'blocked';
    severity: 'permanent' | 'temporary' | 'unknown';
    message: string;
    originalMessage: string;
    providerSpecific?: {
        code?: string;
        action?: string;
        details?: string;
    };
}
/**
 * Enhanced verification parameters
 */
export interface CheckIfEmailExistsCoreParams {
    emailAddress: string;
    timeout?: number;
    verifyMx?: boolean;
    verifySmtp?: boolean;
    debug?: boolean;
    checkDisposable?: boolean;
    checkFree?: boolean;
    cache?: Cache | null;
    smtpTimeout?: number;
    fromEmail?: string;
    helloName?: string;
    smtpOptions?: CheckIfEmailExistsSmtpOptions;
    enableProviderOptimizations?: boolean;
    useYahooApi?: boolean;
    useYahooHeadless?: boolean;
    yahooApiOptions?: YahooApiOptions;
    useHeadless?: boolean;
    headlessOptions?: HeadlessOptions;
}
/**
 * Test-specific types
 */
export interface EmailTestCase {
    email: string;
    expected: {
        syntax: {
            isValid: boolean;
            domain?: string;
            localPart?: string;
        };
        provider?: EmailProvider;
        isDeliverable?: boolean;
        error?: string;
    };
    description?: string;
    category: 'valid' | 'invalid' | 'edge_case' | 'provider_specific';
}
export interface MockSmtpServer {
    domain: string;
    provider: EmailProvider;
    responses: Map<string, {
        code: number;
        message: string;
    }>;
    connected: boolean;
}
/**
 * Performance metrics
 */
export interface VerificationMetrics {
    duration: number;
    steps: {
        syntax: number;
        mx: number;
        smtp: number;
        misc: number;
    };
    cache_hits: number;
    cache_misses: number;
}