import { Kafka, Message, RecordMetadata, ITopicConfig, KafkaConfig, ITopicMetadata } from 'kafkajs';
import { EventEmitter } from 'events';
import { ITestBedOptions, AdapterProducerRecord, AdapterMessage } from './models/index.mjs';
import { Type } from 'avsc';
import { IAdminHeartbeat, TimeState, ITimeManagement } from 'test-bed-schemas';
export interface OffsetOutOfRange {
    message: string;
    partition: number;
    stack: string;
    topic: string;
}
export interface TestBedAdapter {
    on(event: 'ready', listener: () => void): this;
    on(event: 'connect', listener: () => void): this;
    on(event: 'consumer.heartbeat', listener: () => void): this;
    on(event: 'consumer.commit_offsets', listener: () => void): this;
    on(event: 'consumer.group_join', listener: () => void): this;
    on(event: 'consumer.fetch_start', listener: () => void): this;
    on(event: 'consumer.fetch', listener: () => void): this;
    on(event: 'consumer.start_batch_process', listener: () => void): this;
    on(event: 'consumer.end_batch_process', listener: () => void): this;
    on(event: 'consumer.connect', listener: () => void): this;
    on(event: 'consumer.disconnect', listener: () => void): this;
    on(event: 'consumer.stop', listener: () => void): this;
    on(event: 'consumer.crash', listener: () => void): this;
    on(event: 'consumer.rebalancing', listener: () => void): this;
    on(event: 'consumer.received_unsubscribed_topics', listener: () => void): this;
    on(event: 'consumer.network.request', listener: () => void): this;
    on(event: 'consumer.network.request_timeout', listener: () => void): this;
    on(event: 'consumer.network.request_queue_size', listener: () => void): this;
    on(event: 'reconnect', listener: () => void): this;
    on(event: 'error', listener: (error: string) => void): this;
    on(event: 'offsetOutOfRange', listener: (error: OffsetOutOfRange) => void): this;
    on(event: 'raw', listener: (message: Message) => void): this;
    on(event: 'message', listener: (message: AdapterMessage) => void): this;
    on(event: 'time', listener: (message: ITimeManagement) => void): this;
    on(event: 'heartbeat', listener: (message: IAdminHeartbeat) => void): this;
}
export declare class TestBedAdapter extends EventEmitter {
    static HeartbeatInterval: number;
    isConnected: boolean;
    private groupId;
    private schemaPublisher;
    private schemaRegistry;
    private largeFileUploadService;
    private log;
    private client?;
    private producer?;
    private consumer?;
    private config;
    /** Map of all initialized topics, i.e. with validators/encoders/decoders */
    private consumerTopics;
    private producerTopics;
    /** Location of the configuration file */
    private configFile;
    private timeService;
    private origin?;
    constructor(config?: ITestBedOptions | string);
    connect(): Promise<boolean>;
    disconnect(): void;
    /**
     * Get the underlying KafkaJS client, if defined.
     * Should be available after the 'ready' event is emitted.
     */
    getClient(): Kafka | undefined;
    /**
     * A dictionary containing a clone of all the key schemas with key the bare topic name and
     * value the instance of the AVRO schema and schema ID.
     */
    get keySchemas(): {
        [topic: string]: {
            type: Type;
            srId: number;
        };
    };
    /**
     * A dictionary containing a clone of all the value schemas with key the bare topic name and
     * value the instance of the AVRO schema and schema ID.
     */
    get valueSchemas(): {
        [topic: string]: {
            type: Type;
            srId: number;
        };
    };
    /** Pause all topics when no topics are specified, or only the ones that are specified */
    pause(topics?: {
        topic: string;
        partitions?: number[] | undefined;
    }[]): void;
    /** Resume all topics when no topics are specified, or only the ones that are specified */
    resume(topics?: {
        topic: string;
        partitions?: number[] | undefined;
    }[]): void;
    /** Deprecated: use disconnect */
    close(): void;
    private keyFactory;
    send(payload: AdapterProducerRecord, cb: (error?: any, data?: RecordMetadata[]) => any): Promise<any>;
    /**
     * Returns (a clone of) the configuration options.
     */
    get configuration(): ITestBedOptions & KafkaConfig;
    /**
     * Create topics by requesting their metadata.
     * It only works when `auto.create.topics.enable = true`.
     */
    createTopics(topics: ITopicConfig[]): Promise<boolean>;
    /**
     * Add topics (encoding utf8)
     *
     * @param topics Array of topics to add
     */
    addConsumerTopics(topics?: string | string[]): Promise<void>;
    addProducerTopics(topics?: string | string[]): Promise<void>;
    /**
     * Load the metadata for all topics (in case of an empty array), or specific ones.
     *
     * @param topics If topics is an empty array, retreive the metadata of all topics
     * @param cb callback function to return the metadata results
     */
    loadMetadataForTopics(topics: string[], cb: (error?: any, results?: ITopicMetadata[]) => void): Promise<void>;
    /**
     * Get the simulation time as UTC Date.
     */
    get simulationTime(): Date;
    /**
     * Get the simulation state.
     */
    get timeState(): TimeState;
    /**
     * Positive number, indicating how fast the simulation / trial time moves with respect
     * to the actual time. A value of 0 means a pause, 1 is as fast as real-time.
     */
    get simulationSpeed(): number;
    /**
     * Get elapsed time in msec.
     */
    get timeElapsed(): number;
    /**
     * Upload a file to the large file service, if enabled.
     * NOTE: the configuration needs to specify the URL of the large file service, e.g. http://localhost:9090
     */
    uploadFile(file: string, isPrivate: boolean, cb?: (err?: Error, uploadUrl?: string) => void): void;
    /** List of the uploaded schemas, if any */
    get uploadedSchemas(): string[];
    /** After the Kafka client is connected, initialize the other services too, starting with the schema registry. */
    private initialize;
    private initProducer;
    private initLogger;
    /** If required, add the Kafka logger too (after the producer has been initialised). */
    private addKafkaLogger;
    private initConsumer;
    private handleMessage;
    private registerTopic;
    private unregisterTopic;
    /**
     * Add the topics to the configuration and initialize the decoders.
     * @param topics topics to add
     */
    private initializeConsumerTopics;
    /**
     * Add the topics to the configuration and initialize the encoders/validators.
     * @param topics topics to add
     */
    private initializeProducerTopics;
    /**
     * Start transmitting a heartbeat message.
     */
    private startHeartbeat;
    /**
     * Set the default options of the configuration.
     * @param options current configuration
     */
    private setDefaultOptions;
    /**
     * Validate that all required options are set, or throw an error if not.
     * @param options current configuration
     */
    private validateOptions;
    /**
     * Load the configuration options from file.
     * @param configFile configuration file path
     */
    private loadOptionsFromFile;
    private emitErrorMsg;
}