/*
 * 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 { Grants } from "../operationsInterfaces";
import * as coreClient from "@azure/core-client";
import * as Mappers from "../models/mappers";
import * as Parameters from "../models/parameters";
import { EducationManagementClient } from "../educationManagementClient";
import {
  GrantDetails,
  GrantsListAllNextOptionalParams,
  GrantsListAllOptionalParams,
  GrantsListAllResponse,
  GrantsListNextOptionalParams,
  GrantsListOptionalParams,
  GrantsListResponse,
  GrantsGetOptionalParams,
  GrantsGetResponse,
  GrantsListAllNextResponse,
  GrantsListNextResponse
} from "../models";

/// <reference lib="esnext.asynciterable" />
/** Class containing Grants operations. */
export class GrantsImpl implements Grants {
  private readonly client: EducationManagementClient;

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

  /**
   * Get a list of grants that Microsoft has provided.
   * @param options The options parameters.
   */
  public listAll(
    options?: GrantsListAllOptionalParams
  ): PagedAsyncIterableIterator<GrantDetails> {
    const iter = this.listAllPagingAll(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.listAllPagingPage(options, settings);
      }
    };
  }

  private async *listAllPagingPage(
    options?: GrantsListAllOptionalParams,
    settings?: PageSettings
  ): AsyncIterableIterator<GrantDetails[]> {
    let result: GrantsListAllResponse;
    let continuationToken = settings?.continuationToken;
    if (!continuationToken) {
      result = await this._listAll(options);
      let page = result.value || [];
      continuationToken = result.nextLink;
      setContinuationToken(page, continuationToken);
      yield page;
    }
    while (continuationToken) {
      result = await this._listAllNext(continuationToken, options);
      continuationToken = result.nextLink;
      let page = result.value || [];
      setContinuationToken(page, continuationToken);
      yield page;
    }
  }

  private async *listAllPagingAll(
    options?: GrantsListAllOptionalParams
  ): AsyncIterableIterator<GrantDetails> {
    for await (const page of this.listAllPagingPage(options)) {
      yield* page;
    }
  }

  /**
   * Get details for a specific grant linked to the provided billing account and billing profile.
   * @param billingAccountName Billing account name.
   * @param billingProfileName Billing profile name.
   * @param options The options parameters.
   */
  public list(
    billingAccountName: string,
    billingProfileName: string,
    options?: GrantsListOptionalParams
  ): PagedAsyncIterableIterator<GrantDetails> {
    const iter = this.listPagingAll(
      billingAccountName,
      billingProfileName,
      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.listPagingPage(
          billingAccountName,
          billingProfileName,
          options,
          settings
        );
      }
    };
  }

  private async *listPagingPage(
    billingAccountName: string,
    billingProfileName: string,
    options?: GrantsListOptionalParams,
    settings?: PageSettings
  ): AsyncIterableIterator<GrantDetails[]> {
    let result: GrantsListResponse;
    let continuationToken = settings?.continuationToken;
    if (!continuationToken) {
      result = await this._list(
        billingAccountName,
        billingProfileName,
        options
      );
      let page = result.value || [];
      continuationToken = result.nextLink;
      setContinuationToken(page, continuationToken);
      yield page;
    }
    while (continuationToken) {
      result = await this._listNext(
        billingAccountName,
        billingProfileName,
        continuationToken,
        options
      );
      continuationToken = result.nextLink;
      let page = result.value || [];
      setContinuationToken(page, continuationToken);
      yield page;
    }
  }

  private async *listPagingAll(
    billingAccountName: string,
    billingProfileName: string,
    options?: GrantsListOptionalParams
  ): AsyncIterableIterator<GrantDetails> {
    for await (const page of this.listPagingPage(
      billingAccountName,
      billingProfileName,
      options
    )) {
      yield* page;
    }
  }

  /**
   * Get a list of grants that Microsoft has provided.
   * @param options The options parameters.
   */
  private _listAll(
    options?: GrantsListAllOptionalParams
  ): Promise<GrantsListAllResponse> {
    return this.client.sendOperationRequest({ options }, listAllOperationSpec);
  }

  /**
   * Get details for a specific grant linked to the provided billing account and billing profile.
   * @param billingAccountName Billing account name.
   * @param billingProfileName Billing profile name.
   * @param options The options parameters.
   */
  private _list(
    billingAccountName: string,
    billingProfileName: string,
    options?: GrantsListOptionalParams
  ): Promise<GrantsListResponse> {
    return this.client.sendOperationRequest(
      { billingAccountName, billingProfileName, options },
      listOperationSpec
    );
  }

  /**
   * Get details for a specific grant linked to the provided billing account and billing profile.
   * @param billingAccountName Billing account name.
   * @param billingProfileName Billing profile name.
   * @param options The options parameters.
   */
  get(
    billingAccountName: string,
    billingProfileName: string,
    options?: GrantsGetOptionalParams
  ): Promise<GrantsGetResponse> {
    return this.client.sendOperationRequest(
      { billingAccountName, billingProfileName, options },
      getOperationSpec
    );
  }

  /**
   * ListAllNext
   * @param nextLink The nextLink from the previous successful call to the ListAll method.
   * @param options The options parameters.
   */
  private _listAllNext(
    nextLink: string,
    options?: GrantsListAllNextOptionalParams
  ): Promise<GrantsListAllNextResponse> {
    return this.client.sendOperationRequest(
      { nextLink, options },
      listAllNextOperationSpec
    );
  }

  /**
   * ListNext
   * @param billingAccountName Billing account name.
   * @param billingProfileName Billing profile name.
   * @param nextLink The nextLink from the previous successful call to the List method.
   * @param options The options parameters.
   */
  private _listNext(
    billingAccountName: string,
    billingProfileName: string,
    nextLink: string,
    options?: GrantsListNextOptionalParams
  ): Promise<GrantsListNextResponse> {
    return this.client.sendOperationRequest(
      { billingAccountName, billingProfileName, nextLink, options },
      listNextOperationSpec
    );
  }
}
// Operation Specifications
const serializer = coreClient.createSerializer(Mappers, /* isXml */ false);

const listAllOperationSpec: coreClient.OperationSpec = {
  path: "/providers/Microsoft.Education/grants",
  httpMethod: "GET",
  responses: {
    200: {
      bodyMapper: Mappers.GrantListResponse
    },
    default: {
      bodyMapper: Mappers.ErrorResponseBody
    }
  },
  queryParameters: [Parameters.apiVersion, Parameters.includeAllocatedBudget],
  urlParameters: [Parameters.$host],
  headerParameters: [Parameters.accept],
  serializer
};
const listOperationSpec: coreClient.OperationSpec = {
  path:
    "/providers/Microsoft.Billing/billingAccounts/{billingAccountName}/billingProfiles/{billingProfileName}/providers/Microsoft.Education/grants",
  httpMethod: "GET",
  responses: {
    200: {
      bodyMapper: Mappers.GrantListResponse
    },
    default: {
      bodyMapper: Mappers.ErrorResponseBody
    }
  },
  queryParameters: [Parameters.apiVersion, Parameters.includeAllocatedBudget],
  urlParameters: [
    Parameters.$host,
    Parameters.billingAccountName,
    Parameters.billingProfileName
  ],
  headerParameters: [Parameters.accept],
  serializer
};
const getOperationSpec: coreClient.OperationSpec = {
  path:
    "/providers/Microsoft.Billing/billingAccounts/{billingAccountName}/billingProfiles/{billingProfileName}/providers/Microsoft.Education/grants/default",
  httpMethod: "GET",
  responses: {
    200: {
      bodyMapper: Mappers.GrantDetails
    },
    default: {
      bodyMapper: Mappers.ErrorResponseBody
    }
  },
  queryParameters: [Parameters.apiVersion, Parameters.includeAllocatedBudget],
  urlParameters: [
    Parameters.$host,
    Parameters.billingAccountName,
    Parameters.billingProfileName
  ],
  headerParameters: [Parameters.accept],
  serializer
};
const listAllNextOperationSpec: coreClient.OperationSpec = {
  path: "{nextLink}",
  httpMethod: "GET",
  responses: {
    200: {
      bodyMapper: Mappers.GrantListResponse
    },
    default: {
      bodyMapper: Mappers.ErrorResponseBody
    }
  },
  urlParameters: [Parameters.$host, Parameters.nextLink],
  headerParameters: [Parameters.accept],
  serializer
};
const listNextOperationSpec: coreClient.OperationSpec = {
  path: "{nextLink}",
  httpMethod: "GET",
  responses: {
    200: {
      bodyMapper: Mappers.GrantListResponse
    },
    default: {
      bodyMapper: Mappers.ErrorResponseBody
    }
  },
  urlParameters: [
    Parameters.$host,
    Parameters.billingAccountName,
    Parameters.billingProfileName,
    Parameters.nextLink
  ],
  headerParameters: [Parameters.accept],
  serializer
};