/*
 * Copyright (c) Microsoft Corporation.
 * Licensed under the MIT License.
 *
 * Code generated by Microsoft (R) AutoRest Code Generator.
 * Changes may cause incorrect behavior and will be lost if the code is regenerated.
 */

import { PagedAsyncIterableIterator, PageSettings } from "@azure/core-paging";
import { setContinuationToken } from "../pagingHelper";
import { ConsumerGroups } from "../operationsInterfaces";
import * as coreClient from "@azure/core-client";
import * as Mappers from "../models/mappers";
import * as Parameters from "../models/parameters";
import { EventHubManagementClient } from "../eventHubManagementClient";
import {
  ConsumerGroup,
  ConsumerGroupsListByEventHubNextOptionalParams,
  ConsumerGroupsListByEventHubOptionalParams,
  ConsumerGroupsListByEventHubResponse,
  ConsumerGroupsCreateOrUpdateOptionalParams,
  ConsumerGroupsCreateOrUpdateResponse,
  ConsumerGroupsDeleteOptionalParams,
  ConsumerGroupsGetOptionalParams,
  ConsumerGroupsGetResponse,
  ConsumerGroupsListByEventHubNextResponse
} from "../models";

/// <reference lib="esnext.asynciterable" />
/** Class containing ConsumerGroups operations. */
export class ConsumerGroupsImpl implements ConsumerGroups {
  private readonly client: EventHubManagementClient;

  /**
   * Initialize a new instance of the class ConsumerGroups class.
   * @param client Reference to the service client
   */
  constructor(client: EventHubManagementClient) {
    this.client = client;
  }

  /**
   * Gets all the consumer groups in a Namespace. An empty feed is returned if no consumer group exists
   * in the Namespace.
   * @param resourceGroupName Name of the resource group within the azure subscription.
   * @param namespaceName The Namespace name
   * @param eventHubName The Event Hub name
   * @param options The options parameters.
   */
  public listByEventHub(
    resourceGroupName: string,
    namespaceName: string,
    eventHubName: string,
    options?: ConsumerGroupsListByEventHubOptionalParams
  ): PagedAsyncIterableIterator<ConsumerGroup> {
    const iter = this.listByEventHubPagingAll(
      resourceGroupName,
      namespaceName,
      eventHubName,
      options
    );
    return {
      next() {
        return iter.next();
      },
      [Symbol.asyncIterator]() {
        return this;
      },
      byPage: (settings?: PageSettings) => {
        if (settings?.maxPageSize) {
          throw new Error("maxPageSize is not supported by this operation.");
        }
        return this.listByEventHubPagingPage(
          resourceGroupName,
          namespaceName,
          eventHubName,
          options,
          settings
        );
      }
    };
  }

  private async *listByEventHubPagingPage(
    resourceGroupName: string,
    namespaceName: string,
    eventHubName: string,
    options?: ConsumerGroupsListByEventHubOptionalParams,
    settings?: PageSettings
  ): AsyncIterableIterator<ConsumerGroup[]> {
    let result: ConsumerGroupsListByEventHubResponse;
    let continuationToken = settings?.continuationToken;
    if (!continuationToken) {
      result = await this._listByEventHub(
        resourceGroupName,
        namespaceName,
        eventHubName,
        options
      );
      let page = result.value || [];
      continuationToken = result.nextLink;
      setContinuationToken(page, continuationToken);
      yield page;
    }
    while (continuationToken) {
      result = await this._listByEventHubNext(
        resourceGroupName,
        namespaceName,
        eventHubName,
        continuationToken,
        options
      );
      continuationToken = result.nextLink;
      let page = result.value || [];
      setContinuationToken(page, continuationToken);
      yield page;
    }
  }

  private async *listByEventHubPagingAll(
    resourceGroupName: string,
    namespaceName: string,
    eventHubName: string,
    options?: ConsumerGroupsListByEventHubOptionalParams
  ): AsyncIterableIterator<ConsumerGroup> {
    for await (const page of this.listByEventHubPagingPage(
      resourceGroupName,
      namespaceName,
      eventHubName,
      options
    )) {
      yield* page;
    }
  }

  /**
   * Creates or updates an Event Hubs consumer group as a nested resource within a Namespace.
   * @param resourceGroupName Name of the resource group within the azure subscription.
   * @param namespaceName The Namespace name
   * @param eventHubName The Event Hub name
   * @param consumerGroupName The consumer group name
   * @param parameters Parameters supplied to create or update a consumer group resource.
   * @param options The options parameters.
   */
  createOrUpdate(
    resourceGroupName: string,
    namespaceName: string,
    eventHubName: string,
    consumerGroupName: string,
    parameters: ConsumerGroup,
    options?: ConsumerGroupsCreateOrUpdateOptionalParams
  ): Promise<ConsumerGroupsCreateOrUpdateResponse> {
    return this.client.sendOperationRequest(
      {
        resourceGroupName,
        namespaceName,
        eventHubName,
        consumerGroupName,
        parameters,
        options
      },
      createOrUpdateOperationSpec
    );
  }

  /**
   * Deletes a consumer group from the specified Event Hub and resource group.
   * @param resourceGroupName Name of the resource group within the azure subscription.
   * @param namespaceName The Namespace name
   * @param eventHubName The Event Hub name
   * @param consumerGroupName The consumer group name
   * @param options The options parameters.
   */
  delete(
    resourceGroupName: string,
    namespaceName: string,
    eventHubName: string,
    consumerGroupName: string,
    options?: ConsumerGroupsDeleteOptionalParams
  ): Promise<void> {
    return this.client.sendOperationRequest(
      {
        resourceGroupName,
        namespaceName,
        eventHubName,
        consumerGroupName,
        options
      },
      deleteOperationSpec
    );
  }

  /**
   * Gets a description for the specified consumer group.
   * @param resourceGroupName Name of the resource group within the azure subscription.
   * @param namespaceName The Namespace name
   * @param eventHubName The Event Hub name
   * @param consumerGroupName The consumer group name
   * @param options The options parameters.
   */
  get(
    resourceGroupName: string,
    namespaceName: string,
    eventHubName: string,
    consumerGroupName: string,
    options?: ConsumerGroupsGetOptionalParams
  ): Promise<ConsumerGroupsGetResponse> {
    return this.client.sendOperationRequest(
      {
        resourceGroupName,
        namespaceName,
        eventHubName,
        consumerGroupName,
        options
      },
      getOperationSpec
    );
  }

  /**
   * Gets all the consumer groups in a Namespace. An empty feed is returned if no consumer group exists
   * in the Namespace.
   * @param resourceGroupName Name of the resource group within the azure subscription.
   * @param namespaceName The Namespace name
   * @param eventHubName The Event Hub name
   * @param options The options parameters.
   */
  private _listByEventHub(
    resourceGroupName: string,
    namespaceName: string,
    eventHubName: string,
    options?: ConsumerGroupsListByEventHubOptionalParams
  ): Promise<ConsumerGroupsListByEventHubResponse> {
    return this.client.sendOperationRequest(
      { resourceGroupName, namespaceName, eventHubName, options },
      listByEventHubOperationSpec
    );
  }

  /**
   * ListByEventHubNext
   * @param resourceGroupName Name of the resource group within the azure subscription.
   * @param namespaceName The Namespace name
   * @param eventHubName The Event Hub name
   * @param nextLink The nextLink from the previous successful call to the ListByEventHub method.
   * @param options The options parameters.
   */
  private _listByEventHubNext(
    resourceGroupName: string,
    namespaceName: string,
    eventHubName: string,
    nextLink: string,
    options?: ConsumerGroupsListByEventHubNextOptionalParams
  ): Promise<ConsumerGroupsListByEventHubNextResponse> {
    return this.client.sendOperationRequest(
      { resourceGroupName, namespaceName, eventHubName, nextLink, options },
      listByEventHubNextOperationSpec
    );
  }
}
// Operation Specifications
const serializer = coreClient.createSerializer(Mappers, /* isXml */ false);

const createOrUpdateOperationSpec: coreClient.OperationSpec = {
  path:
    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventHub/namespaces/{namespaceName}/eventhubs/{eventHubName}/consumergroups/{consumerGroupName}",
  httpMethod: "PUT",
  responses: {
    200: {
      bodyMapper: Mappers.ConsumerGroup
    },
    default: {
      bodyMapper: Mappers.ErrorResponse
    }
  },
  requestBody: Parameters.parameters7,
  queryParameters: [Parameters.apiVersion1],
  urlParameters: [
    Parameters.$host,
    Parameters.subscriptionId,
    Parameters.resourceGroupName,
    Parameters.namespaceName,
    Parameters.eventHubName,
    Parameters.consumerGroupName
  ],
  headerParameters: [Parameters.accept, Parameters.contentType],
  mediaType: "json",
  serializer
};
const deleteOperationSpec: coreClient.OperationSpec = {
  path:
    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventHub/namespaces/{namespaceName}/eventhubs/{eventHubName}/consumergroups/{consumerGroupName}",
  httpMethod: "DELETE",
  responses: {
    200: {},
    204: {},
    default: {
      bodyMapper: Mappers.ErrorResponse
    }
  },
  queryParameters: [Parameters.apiVersion1],
  urlParameters: [
    Parameters.$host,
    Parameters.subscriptionId,
    Parameters.resourceGroupName,
    Parameters.namespaceName,
    Parameters.eventHubName,
    Parameters.consumerGroupName
  ],
  headerParameters: [Parameters.accept],
  serializer
};
const getOperationSpec: coreClient.OperationSpec = {
  path:
    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventHub/namespaces/{namespaceName}/eventhubs/{eventHubName}/consumergroups/{consumerGroupName}",
  httpMethod: "GET",
  responses: {
    200: {
      bodyMapper: Mappers.ConsumerGroup
    },
    default: {
      bodyMapper: Mappers.ErrorResponse
    }
  },
  queryParameters: [Parameters.apiVersion1],
  urlParameters: [
    Parameters.$host,
    Parameters.subscriptionId,
    Parameters.resourceGroupName,
    Parameters.namespaceName,
    Parameters.eventHubName,
    Parameters.consumerGroupName
  ],
  headerParameters: [Parameters.accept],
  serializer
};
const listByEventHubOperationSpec: coreClient.OperationSpec = {
  path:
    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.EventHub/namespaces/{namespaceName}/eventhubs/{eventHubName}/consumergroups",
  httpMethod: "GET",
  responses: {
    200: {
      bodyMapper: Mappers.ConsumerGroupListResult
    },
    default: {
      bodyMapper: Mappers.ErrorResponse
    }
  },
  queryParameters: [Parameters.apiVersion1, Parameters.skip, Parameters.top],
  urlParameters: [
    Parameters.$host,
    Parameters.subscriptionId,
    Parameters.resourceGroupName,
    Parameters.namespaceName,
    Parameters.eventHubName
  ],
  headerParameters: [Parameters.accept],
  serializer
};
const listByEventHubNextOperationSpec: coreClient.OperationSpec = {
  path: "{nextLink}",
  httpMethod: "GET",
  responses: {
    200: {
      bodyMapper: Mappers.ConsumerGroupListResult
    },
    default: {
      bodyMapper: Mappers.ErrorResponse
    }
  },
  urlParameters: [
    Parameters.$host,
    Parameters.subscriptionId,
    Parameters.resourceGroupName,
    Parameters.nextLink,
    Parameters.namespaceName,
    Parameters.eventHubName
  ],
  headerParameters: [Parameters.accept],
  serializer
};