Bid.js.map

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{ ID, Observable } from './common-types';\nimport IConfig from './IConfig';\nimport BidParams from './BidParams';\nimport MissionParams from './MissionParams';\nimport GeneralMessageParams from './MissionPeerIdMessageParams';\nimport MessageParams from './MessageParams';\nimport Message from './Message';\nimport Mission from './Mission';\nimport Kafka from './Kafka';\nimport Contracts from './Contracts';\nimport KafkaMessageStream from './KafkaMessageStream';\nimport CommitmentConfirmationParams from './CommitmentConfirmationParams';\nimport CommitmentRequest from './CommitmentRequest';\nimport CommitmentConfirmation from './CommitmentConfirmation';\nimport CommitmentRequestParams from './CommitmentRequestParams';\nimport KafkaMessageFactory, { MessageCategories } from './KafkaMessageFactory';\nimport MissionPeerIdMessageParams from './MissionPeerIdMessageParams';\n/**\n * @class Bid class represent a bid for service request.\n */\nexport default class Bid<T extends BidParams> {\n  private _missionId: ID;\n  // DON'T USE THIS MEMBER BUT ONLY VIA ITS GETTER!\n  private _kafkaMessageStream: KafkaMessageStream;\n\n  get params(): T {\n    return this._params;\n  }\n\n  get id(): ID {\n    return this._selfId;\n  }\n\n  constructor(\n    private _selfId: ID,\n    private _params: T,\n    private _config: IConfig,\n    private kafkaMessageStream?: KafkaMessageStream,\n  ) {\n    this._kafkaMessageStream = kafkaMessageStream;\n  }\n\n  private async getKafkaMessageStream(): Promise<KafkaMessageStream> {\n    if (!this._kafkaMessageStream) {\n      this._kafkaMessageStream = await Kafka.messages(\n        this._selfId,\n        this._config,\n      );\n    }\n    return this._kafkaMessageStream;\n  }\n\n  public async requestCommitment(): Promise<CommitmentConfirmation> {\n    if (this._params.isCommitted) {\n      return new CommitmentConfirmation(\n        new CommitmentConfirmationParams({ bidId: this._params.id }),\n      );\n    }\n    const bidderId = this._params.id; // Channel#6\n    const commitmentRequestParams = new CommitmentRequestParams({\n      neederId: this._selfId,\n    });\n    const kafkaMessageStream: KafkaMessageStream = await this.getKafkaMessageStream(); // Channel#3\n    const commitmentConfirmationParamsStream = kafkaMessageStream.filterType([\n      CommitmentConfirmationParams._messageType,\n    ]);\n    const commitmentConfirmation = commitmentConfirmationParamsStream\n      .filter(\n        (commitmentConfirmationParams: CommitmentConfirmationParams) =>\n          commitmentConfirmationParams.bidId === this._params.id,\n      )\n      .map((commitmentParams: CommitmentConfirmationParams) => {\n        this._params.isCommitted = true;\n        return new CommitmentConfirmation(commitmentParams);\n      })\n      .first()\n      .toPromise();\n    await Kafka.sendParams(bidderId, commitmentRequestParams, this._config);\n    return commitmentConfirmation;\n  }\n\n  /**\n   * @method accept Used to accept a bid and create a new mission, the mission will sent to the bid provider.\n   * @param missionParams the mission parameters.\n   * @param walletPrivateKey Ethereum wallet private key, to charge for the mission.\n   * @returns the created mission.\n   */\n  // TODO: think why do mission params is a parameter of this method? does mission params have another source of information except bid params?\n  public async accept<V extends MissionParams>(\n    missionParams: V,\n    walletPrivateKey: string,\n  ): Promise<Mission<V>> {\n    if (!this._params.isCommitted) {\n      throw new Error(\n        `Bidder hasn't confirmed commitment to this bid! please get commitment confirmation first.`,\n      );\n    }\n    const bidderId = this._params.id; // Channel#6\n    missionParams.id = Contracts.generateMissionId(this._config); // Channel#4\n    missionParams.price = this._params.price;\n    missionParams.neederDavId = this._params.neederDavId;\n    missionParams.vehicleId = this._params.vehicleId;\n    this._missionId = missionParams.id;\n    try {\n      await Contracts.approveMission(\n        missionParams.neederDavId,\n        walletPrivateKey,\n        this._config,\n      );\n    } catch (err) {\n      throw new Error(\n        `Fail to approve mission, you might not have enough DAV Tokens: ${err}`,\n      );\n    }\n    try {\n      await Kafka.createTopic(missionParams.id, this._config);\n    } catch (err) {\n      // TODO: move this general message to kafka.createTopic\n      throw new Error(`Fail to create a topic: ${err}`);\n    }\n    const messageStream = await Kafka.messages(missionParams.id, this._config);\n    const peerIdPromise = new Promise<string>((resolve, reject) => {\n      messageStream\n        .filterType([MissionPeerIdMessageParams._messageType])\n        .take(1)\n        .subscribe((m: MissionPeerIdMessageParams) => {\n          resolve(m.senderId);\n        }, reject);\n    });\n    await Kafka.sendParams(bidderId, missionParams, this._config);\n    const peerId = await peerIdPromise;\n    const mission = new Mission<V>(\n      this._missionId,\n      peerId,\n      missionParams,\n      this._config,\n    );\n    return mission;\n  }\n  /**\n   * @method sendMessage Used to send a message to the bid provider.\n   * @param messageParams the message parameters.\n   */\n  public async sendMessage(messageParams: MessageParams): Promise<void> {\n    if (this._selfId === this._params.id) {\n      throw new Error(`You cannot send message to your own channel`);\n    }\n    messageParams.senderId = this._selfId; // Channel#3\n    return await Kafka.sendParams(this._params.id, messageParams, this._config); // Channel#6\n  }\n  /**\n   * @method messages Used to subscribe for messages for the current bid.\n   * @param filterTypes (optional) array of the expected message params object type.\n   * @returns Observable for messages subscription.\n   */\n  public async messages<U extends MessageParams>(\n    filterTypes?: string[],\n  ): Promise<Observable<Message<U>>> {\n    const kafkaMessageStream: KafkaMessageStream = await this.getKafkaMessageStream(); // Channel#6 or Channel#3\n    const messageParamsStream: Observable<U> = kafkaMessageStream.filterType(\n      filterTypes ||\n        KafkaMessageFactory.instance.getMessageTypes(\n          this._params.protocol,\n          MessageCategories.Message,\n        ),\n    );\n    const messageStream = messageParamsStream.map(\n      (params: U) => new Message<U>(this._selfId, params, this._config),\n    );\n    return Observable.fromObservable(messageStream, messageParamsStream.topic);\n  }\n  /**\n   * @method missions Used to subscribe for missions.\n   * @returns Observable for missions subscription.\n   */\n  public async missions<V extends MissionParams>(): Promise<\n    Observable<Mission<V>>\n  > {\n    const kafkaMessageStream: KafkaMessageStream = await this.getKafkaMessageStream(); // Channel#6\n    const missionParamsStream: Observable<V> = kafkaMessageStream.filterType(\n      KafkaMessageFactory.instance.getMessageTypes(\n        this._params.protocol,\n        MessageCategories.Mission,\n      ),\n    );\n    const missionStream = missionParamsStream\n      .map(async (params: V) => {\n        this._missionId = Kafka.generateTopicId();\n        await Kafka.createTopic(this._missionId, this._config); // Channel #5\n        return new Mission<V>(this._missionId, params.id, params, this._config);\n      })\n      .map(promise => Observable.fromPromise(promise))\n      .mergeAll()\n      .do(mission => {\n        const message = new GeneralMessageParams({ senderId: this._missionId });\n        mission.sendMessage(message);\n      });\n    return Observable.fromObservable(missionStream, missionParamsStream.topic);\n  }\n\n  /**\n   * @method commitmentRequests Used to subscribe for commitmentRequests for current bid.\n   * @returns Observable of commitmentRequests.\n   */\n  public async commitmentRequests(): Promise<Observable<CommitmentRequest>> {\n    const kafkaMessageStream: KafkaMessageStream = await this.getKafkaMessageStream(); // Channel#6\n    const commitmentRequestParamsStream: Observable<\n      CommitmentRequestParams\n    > = kafkaMessageStream.filterType([CommitmentRequestParams._messageType]);\n    const commitmentRequestStream = commitmentRequestParamsStream.map(\n      commitmentRequestParams =>\n        new CommitmentRequest(\n          this._selfId,\n          commitmentRequestParams,\n          this._config,\n        ),\n    );\n    return Observable.fromObservable(commitmentRequestStream, this._selfId);\n  }\n}\n"]}