/**
 * Base Social Provider Secret Entity
 *
 * Stores generated OAuth client secrets (JWTs) for social providers that require
 * dynamic secret generation (e.g., Apple Sign in with Apple).
 *
 * This entity stores the generated JWT client secret and its expiration time,
 * allowing automatic rotation when the secret is close to expiring.
 *
 * @remarks
 * This class is database-agnostic. TypeORM, Prisma, or other ORMs
 * extend this class in their respective packages.
 *
 * @example
 * ```typescript
 * // Apple provider secret record
 * const secret = {
 *   provider: 'apple',
 *   clientSecretJwt: 'eyJhbGciOiJFUzI1NiIsImtpZCI6IktFWV9JRCJ9...',
 *   expiresAt: new Date('2025-06-23T12:00:00Z')
 * };
 * ```
 */
export declare class BaseSocialProviderSecret {
    /**
     * Internal database ID (auto-increment integer)
     * Used for foreign key relationships and internal queries
     * NOT exposed externally
     */
    id: number;
    /**
     * Social provider name
     * Examples: 'apple'
     * Unique constraint ensures one record per provider
     */
    provider: string;
    /**
     * Generated client secret JWT
     * For Apple, this is the ES256-signed JWT used as client_secret in OAuth token exchange
     * Stored as plain text (not encrypted) since database access already grants access to sensitive data
     */
    clientSecretJwt: string;
    /**
     * JWT expiration timestamp
     * When this JWT expires and needs to be regenerated
     * Used to determine when to refresh the secret (typically 30 days before expiry)
     */
    expiresAt: Date;
    /**
     * Record creation timestamp
     */
    createdAt: Date;
    /**
     * Last update timestamp
     * Updated whenever the JWT is regenerated
     */
    updatedAt: Date;
}
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