import { ClientConfig } from './rest-service';
export declare enum Compatibility {
    NONE = "NONE",
    BACKWARD = "BACKWARD",
    FORWARD = "FORWARD",
    FULL = "FULL",
    BACKWARD_TRANSITIVE = "BACKWARD_TRANSITIVE",
    FORWARD_TRANSITIVE = "FORWARD_TRANSITIVE",
    FULL_TRANSITIVE = "FULL_TRANSITIVE"
}
export interface CompatibilityLevel {
    compatibility?: Compatibility;
    compatibilityLevel?: Compatibility;
}
/**
 * Rule represents a data contract rule
 */
export interface Rule {
    name: string;
    doc?: string;
    kind?: string;
    mode?: RuleMode;
    type: string;
    tags?: string[];
    params?: {
        [key: string]: string;
    };
    expr?: string;
    onSuccess?: string;
    onFailure?: string;
    disabled?: boolean;
}
export declare enum RuleMode {
    UPGRADE = "UPGRADE",
    DOWNGRADE = "DOWNGRADE",
    UPDOWN = "UPDOWN",
    WRITE = "WRITE",
    READ = "READ",
    WRITEREAD = "WRITEREAD"
}
/**
 * SchemaInfo represents a schema and its associated information
 */
export interface SchemaInfo {
    schema: string;
    schemaType?: string;
    references?: Reference[];
    metadata?: Metadata;
    ruleSet?: RuleSet;
}
export declare function minimize(info: SchemaInfo): SchemaInfo;
/**
 * SchemaMetadata extends SchemaInfo with additional metadata
 */
export interface SchemaMetadata extends SchemaInfo {
    id: number;
    subject?: string;
    version?: number;
}
/**
 * Reference represents a schema reference
 */
export interface Reference {
    name: string;
    subject: string;
    version: number;
}
/**
 * Metadata represents user-defined metadata
 */
export interface Metadata {
    tags?: {
        [key: string]: string[];
    };
    properties?: {
        [key: string]: string;
    };
    sensitive?: string[];
}
/**
 * RuleSet represents a data contract rule set
 */
export interface RuleSet {
    migrationRules?: Rule[];
    domainRules?: Rule[];
}
/**
 * ServerConfig represents config params for Schema Registry
 */
export interface ServerConfig {
    alias?: string;
    normalize?: boolean;
    compatibility?: Compatibility;
    compatibilityLevel?: Compatibility;
    compatibilityGroup?: string;
    defaultMetadata?: Metadata;
    overrideMetadata?: Metadata;
    defaultRuleSet?: RuleSet;
    overrideRuleSet?: RuleSet;
}
export interface isCompatibleResponse {
    is_compatible: boolean;
}
/**
 * Client is an interface for clients interacting with the Confluent Schema Registry.
 * The Schema Registry's REST interface is further explained in Confluent's Schema Registry API documentation
 * https://github.com/confluentinc/schema-registry/blob/master/client/src/main/java/io/confluent/kafka/schemaregistry/client/SchemaRegistryClient.java
 */
export interface Client {
    config(): ClientConfig;
    register(subject: string, schema: SchemaInfo, normalize: boolean): Promise<number>;
    registerFullResponse(subject: string, schema: SchemaInfo, normalize: boolean): Promise<SchemaMetadata>;
    getBySubjectAndId(subject: string, id: number, format?: string): Promise<SchemaInfo>;
    getId(subject: string, schema: SchemaInfo, normalize: boolean): Promise<number>;
    getLatestSchemaMetadata(subject: string, format?: string): Promise<SchemaMetadata>;
    getSchemaMetadata(subject: string, version: number, deleted: boolean, format?: string): Promise<SchemaMetadata>;
    getLatestWithMetadata(subject: string, metadata: {
        [key: string]: string;
    }, deleted: boolean, format?: string): Promise<SchemaMetadata>;
    getAllVersions(subject: string): Promise<number[]>;
    getVersion(subject: string, schema: SchemaInfo, normalize: boolean, deleted: boolean): Promise<number>;
    getAllSubjects(): Promise<string[]>;
    deleteSubject(subject: string, permanent: boolean): Promise<number[]>;
    deleteSubjectVersion(subject: string, version: number, permanent: boolean): Promise<number>;
    testSubjectCompatibility(subject: string, schema: SchemaInfo): Promise<boolean>;
    testCompatibility(subject: string, version: number, schema: SchemaInfo): Promise<boolean>;
    getCompatibility(subject: string): Promise<Compatibility>;
    updateCompatibility(subject: string, update: Compatibility): Promise<Compatibility>;
    getDefaultCompatibility(): Promise<Compatibility>;
    updateDefaultCompatibility(update: Compatibility): Promise<Compatibility>;
    getConfig(subject: string): Promise<ServerConfig>;
    updateConfig(subject: string, update: ServerConfig): Promise<ServerConfig>;
    getDefaultConfig(): Promise<ServerConfig>;
    updateDefaultConfig(update: ServerConfig): Promise<ServerConfig>;
    clearLatestCaches(): void;
    clearCaches(): void;
    close(): void;
}
/**
 * SchemaRegistryClient is a client for interacting with the Confluent Schema Registry.
 * This client will cache responses from Schema Registry to reduce network requests.
 */
export declare class SchemaRegistryClient implements Client {
    private clientConfig;
    private restService;
    private schemaToIdCache;
    private idToSchemaInfoCache;
    private infoToSchemaCache;
    private latestToSchemaCache;
    private schemaToVersionCache;
    private versionToSchemaCache;
    private metadataToSchemaCache;
    private schemaToIdMutex;
    private idToSchemaInfoMutex;
    private infoToSchemaMutex;
    private latestToSchemaMutex;
    private schemaToVersionMutex;
    private versionToSchemaMutex;
    private metadataToSchemaMutex;
    /**
     * Create a new Schema Registry client.
     * @param config - The client configuration.
     */
    constructor(config: ClientConfig);
    static newClient(config: ClientConfig): Client;
    config(): ClientConfig;
    /**
     * Register a schema with the Schema Registry and return the schema ID.
     * @param subject - The subject under which to register the schema.
     * @param schema - The schema to register.
     * @param normalize - Whether to normalize the schema before registering.
     */
    register(subject: string, schema: SchemaInfo, normalize?: boolean): Promise<number>;
    /**
     * Register a schema with the Schema Registry and return the full response.
     * @param subject - The subject under which to register the schema.
     * @param schema - The schema to register.
     * @param normalize - Whether to normalize the schema before registering.
     */
    registerFullResponse(subject: string, schema: SchemaInfo, normalize?: boolean): Promise<SchemaMetadata>;
    /**
     * Get a schema by subject and ID.
     * @param subject - The subject under which the schema is registered.
     * @param id - The schema ID.
     * @param format - The format of the schema.
     */
    getBySubjectAndId(subject: string, id: number, format?: string): Promise<SchemaInfo>;
    /**
     * Get the ID for a schema.
     * @param subject - The subject under which the schema is registered.
     * @param schema - The schema whose ID to get.
     * @param normalize - Whether to normalize the schema before getting the ID.
     */
    getId(subject: string, schema: SchemaInfo, normalize?: boolean): Promise<number>;
    /**
     * Get the latest schema metadata for a subject.
     * @param subject - The subject for which to get the latest schema metadata.
     * @param format - The format of the schema.
     */
    getLatestSchemaMetadata(subject: string, format?: string): Promise<SchemaMetadata>;
    /**
     * Get the schema metadata for a subject and version.
     * @param subject - The subject for which to get the schema metadata.
     * @param version - The version of the schema.
     * @param deleted - Whether to include deleted schemas.
     * @param format - The format of the schema.
     */
    getSchemaMetadata(subject: string, version: number, deleted?: boolean, format?: string): Promise<SchemaMetadata>;
    /**
     * Get the latest schema metadata for a subject with the given metadata.
     * @param subject - The subject for which to get the latest schema metadata.
     * @param metadata - The metadata to match.
     * @param deleted - Whether to include deleted schemas.
     * @param format - The format of the schema.
     */
    getLatestWithMetadata(subject: string, metadata: {
        [key: string]: string;
    }, deleted?: boolean, format?: string): Promise<SchemaMetadata>;
    /**
     * Get all versions of a schema for a subject.
     * @param subject - The subject for which to get all versions.
     */
    getAllVersions(subject: string): Promise<number[]>;
    /**
     * Get the version of a schema for a subject.
     * @param subject - The subject for which to get the version.
     * @param schema - The schema for which to get the version.
     * @param normalize - Whether to normalize the schema before getting the version.
     */
    getVersion(subject: string, schema: SchemaInfo, normalize?: boolean, deleted?: boolean): Promise<number>;
    /**
     * Get all subjects in the Schema Registry.
     */
    getAllSubjects(): Promise<string[]>;
    /**
     * Delete a subject from the Schema Registry.
     * @param subject - The subject to delete.
     * @param permanent - Whether to permanently delete the subject.
     */
    deleteSubject(subject: string, permanent?: boolean): Promise<number[]>;
    /**
     * Delete a version of a subject from the Schema Registry.
     * @param subject - The subject to delete.
     * @param version - The version to delete.
     * @param permanent - Whether to permanently delete the version.
     */
    deleteSubjectVersion(subject: string, version: number, permanent?: boolean): Promise<number>;
    /**
     * Test the compatibility of a schema with the latest schema for a subject.
     * @param subject - The subject for which to test compatibility.
     * @param schema - The schema to test compatibility.
     */
    testSubjectCompatibility(subject: string, schema: SchemaInfo): Promise<boolean>;
    /**
     * Test the compatibility of a schema with a specific version of a subject.
     * @param subject - The subject for which to test compatibility.
     * @param version - The version of the schema for which to test compatibility.
     * @param schema - The schema to test compatibility.
     */
    testCompatibility(subject: string, version: number, schema: SchemaInfo): Promise<boolean>;
    /**
     * Get the compatibility level for a subject.
     * @param subject - The subject for which to get the compatibility level.
     */
    getCompatibility(subject: string): Promise<Compatibility>;
    /**
     * Update the compatibility level for a subject.
     * @param subject - The subject for which to update the compatibility level.
     * @param update - The compatibility level to update to.
     */
    updateCompatibility(subject: string, update: Compatibility): Promise<Compatibility>;
    /**
     * Get the default/global compatibility level.
     */
    getDefaultCompatibility(): Promise<Compatibility>;
    /**
     * Update the default/global compatibility level.
     * @param update - The compatibility level to update to.
     */
    updateDefaultCompatibility(update: Compatibility): Promise<Compatibility>;
    /**
     * Get the config for a subject.
     * @param subject - The subject for which to get the config.
     */
    getConfig(subject: string): Promise<ServerConfig>;
    /**
     * Update the config for a subject.
     * @param subject - The subject for which to update the config.
     * @param update - The config to update to.
     */
    updateConfig(subject: string, update: ServerConfig): Promise<ServerConfig>;
    /**
     * Get the default/global config.
     */
    getDefaultConfig(): Promise<ServerConfig>;
    /**
     * Update the default/global config.
     * @param update - The config to update to.
     */
    updateDefaultConfig(update: ServerConfig): Promise<ServerConfig>;
    /**
     * Clear the latest caches.
     */
    clearLatestCaches(): void;
    /**
     * Clear all caches.
     */
    clearCaches(): void;
    /**
     * Close the client.
     */
    close(): Promise<void>;
    addToInfoToSchemaCache(subject: string, schema: SchemaInfo, metadata: SchemaMetadata): Promise<void>;
    addToSchemaToVersionCache(subject: string, schema: SchemaInfo, version: number): Promise<void>;
    addToVersionToSchemaCache(subject: string, version: number, metadata: SchemaMetadata): Promise<void>;
    addToIdToSchemaInfoCache(subject: string, id: number, schema: SchemaInfo): Promise<void>;
    getInfoToSchemaCacheSize(): Promise<number>;
    getSchemaToVersionCacheSize(): Promise<number>;
    getVersionToSchemaCacheSize(): Promise<number>;
    getIdToSchemaInfoCacheSize(): Promise<number>;
}