import * as url from 'url';

export interface $FetchOptions {
  body?: string;
  headers?: $HttpHeaders;
  method?: $HttpMethod;
}

export type $FetchFunction = (url: string, options?: $FetchOptions) => Promise<Response>;

export interface $HttpHeaders {
  [key: string]: string;
}

export type $HttpMethod = 'GET' | 'POST' | 'PUT' | 'PATCH' | 'DELETE' | 'HEAD' | 'CONNECT' | 'OPTIONS' | 'TRACE';

export interface $HttpQuery {
  [key: string]: string | number | boolean | string[] | number[] | boolean[] | undefined | null;
}

export interface $HttpRequest {
  body?: any;
  url: string;
  headers: $HttpHeaders;
  method: $HttpMethod;
}

export interface $HttpRequestOptions {
  body?: any;
  endpoint: string;
  headers?: $HttpHeaders;
  method: $HttpMethod;
  query?: $HttpQuery;
}

export interface $HttpResponse<B = any, S = number, O = boolean> {
  body: B;
  headers: $HttpHeaders;
  ok: O;
  request: $HttpRequest;
  status: S;
  statusText: string;
}

export type $HttpContinue<T> = $HttpResponse<T, 100, false>;
export type $HttpSwitchingProtocol<T> = $HttpResponse<T, 101, false>;
export type $HttpProcessing<T> = $HttpResponse<T, 102, false>;
export type $HttpOk<T> = $HttpResponse<T, 200, true>;
export type $HttpCreated<T> = $HttpResponse<T, 201, true>;
export type $HttpAccepted<T> = $HttpResponse<T, 202, true>;
export type $HttpNonAuthoritativeInformation<T> = $HttpResponse<T, 203, true>;
export type $HttpNoContent<T> = $HttpResponse<T, 204, true>;
export type $HttpResetContent<T> = $HttpResponse<T, 205, true>;
export type $HttpPartialContent<T> = $HttpResponse<T, 206, true>;
export type $HttpMultiStatus<T> = $HttpResponse<T, 207, true>;
export type $HttpAlreadyReported<T> = $HttpResponse<T, 208, true>;
export type $HttpImUsed<T> = $HttpResponse<T, 226, true>;
export type $HttpMultipleChoices<T> = $HttpResponse<T, 300, false>;
export type $HttpMovedPermanently<T> = $HttpResponse<T, 301, false>;
export type $HttpFound<T> = $HttpResponse<T, 302, false>;
export type $HttpSeeOther<T> = $HttpResponse<T, 303, false>;
export type $HttpNotModified<T> = $HttpResponse<T, 304, false>;
export type $HttpUseProxy<T> = $HttpResponse<T, 305, false>;
export type $HttpTemporaryRedirect<T> = $HttpResponse<T, 307, false>;
export type $HttpPermanentRedirect<T> = $HttpResponse<T, 308, false>;
export type $HttpBadRequest<T> = $HttpResponse<T, 400, false>;
export type $HttpUnauthorized<T> = $HttpResponse<T, 401, false>;
export type $HttpPaymentRequired<T> = $HttpResponse<T, 402, false>;
export type $HttpForbidden<T> = $HttpResponse<T, 403, false>;
export type $HttpNotFound<T> = $HttpResponse<T, 404, false>;
export type $HttpMethodNotAllowed<T> = $HttpResponse<T, 405, false>;
export type $HttpNotAcceptable<T> = $HttpResponse<T, 406, false>;
export type $HttpProxyAuthenticationRequired<T> = $HttpResponse<T, 407, false>;
export type $HttpRequestTimeout<T> = $HttpResponse<T, 408, false>;
export type $HttpConflict<T> = $HttpResponse<T, 409, false>;
export type $HttpGone<T> = $HttpResponse<T, 410, false>;
export type $HttpLengthRequired<T> = $HttpResponse<T, 411, false>;
export type $HttpPreconditionFailed<T> = $HttpResponse<T, 412, false>;
export type $HttpRequestEntityTooLarge<T> = $HttpResponse<T, 413, false>;
export type $HttpRequestUriTooLong<T> = $HttpResponse<T, 414, false>;
export type $HttpUnsupportedMediaType<T> = $HttpResponse<T, 415, false>;
export type $HttpRequestedRangeNotSatisfiable<T> = $HttpResponse<T, 416, false>;
export type $HttpExpectationFailed<T> = $HttpResponse<T, 417, false>;
export type $HttpMisdirectedRequest<T> = $HttpResponse<T, 421, false>;
export type $HttpUnprocessableEntity<T> = $HttpResponse<T, 422, false>;
export type $HttpLocked<T> = $HttpResponse<T, 423, false>;
export type $HttpFailedDependency<T> = $HttpResponse<T, 424, false>;
export type $HttpUpgradeRequired<T> = $HttpResponse<T, 426, false>;
export type $HttpPreconditionRequired<T> = $HttpResponse<T, 428, false>;
export type $HttpTooManyRequests<T> = $HttpResponse<T, 429, false>;
export type $HttpRequestHeaderFieldsTooLarge<T> = $HttpResponse<T, 431, false>;
export type $HttpNoResponse<T> = $HttpResponse<T, 444, false>;
export type $HttpRetryWith<T> = $HttpResponse<T, 449, false>;
export type $HttpBlockedByWindowsParentalControls<T> = $HttpResponse<T, 450, false>;
export type $HttpUnavailableForLegalReasons<T> = $HttpResponse<T, 451, false>;
export type $HttpClientClosedRequest<T> = $HttpResponse<T, 499, false>;
export type $HttpInternalServerError<T> = $HttpResponse<T, 500, false>;
export type $HttpNotImplemented<T> = $HttpResponse<T, 501, false>;
export type $HttpBadGateway<T> = $HttpResponse<T, 502, false>;
export type $HttpServiceUnavailable<T> = $HttpResponse<T, 503, false>;
export type $HttpGatewayTimeout<T> = $HttpResponse<T, 504, false>;
export type $HttpHttpVersionNotSupported<T> = $HttpResponse<T, 505, false>;
export type $HttpInsufficientStorage<T> = $HttpResponse<T, 507, false>;
export type $HttpLoopDetected<T> = $HttpResponse<T, 508, false>;
export type $HttpBandwidthLimitExceeded<T> = $HttpResponse<T, 509, false>;
export type $HttpNotExtended<T> = $HttpResponse<T, 510, false>;
export type $HttpNetworkAuthenticationRequired<T> = $HttpResponse<T, 511, false>;
export type $HttpNetworkReadTimeoutError<T> = $HttpResponse<T, 598, false>;
export type $HttpNetworkConnectTimeoutError<T> = $HttpResponse<T, 599, false>;

export interface $HttpClientOptions {
  fetch: $FetchFunction;
}

export function isResponseEmpty(response: Response): boolean {
  const contentLength = response.headers.get('Content-Length');
  return response.status === 204 || contentLength != null && Number.parseInt(contentLength, 10) === 0;
}

export function isResponseJson(response: Response): boolean {
  const contentType = response.headers.get('Content-Type');
  return contentType != null && contentType.indexOf('json') >= 0;
}

export function parseJson(response: Response): Promise<any> {
  return !isResponseEmpty(response) && isResponseJson(response) ? response.json() : Promise.resolve();
}

export function parseHeaders(response: Response): Record<string, string> {
  const headers: Record<string, string> = {};

  response.headers.forEach((value, key) => {
    headers[key.toLowerCase()] = value;
  });

  return headers;
}

export function stripQuery(query: $HttpQuery = {}): $HttpQuery {
  const initialValue: $HttpQuery = {};

  return Object.keys(query).reduce((previousValue, key) => {
    const value = query[key];

    if (value != null)
      previousValue[key] = value;

    return previousValue;
  }, initialValue);
}

export class $HttpClient {
  private options: $HttpClientOptions;

  constructor(options: $HttpClientOptions) {
    this.options = options;
  }

  public request(options: $HttpRequestOptions): Promise<$HttpResponse<any, any, any>> {
    const finalUrl: string = url.format({
      hostname: 'api-us.kampyle.com',
      pathname: '/api/v1' + options.endpoint,
      protocol: 'https:',
      query: stripQuery(options.query),
    });

    const finalHeaders: $HttpHeaders = {
      accept: 'application/json',
      'content-type': 'application/json',
      ...options.headers,
    };

    const request: $HttpRequest = {
      body: options.body,
      headers: finalHeaders,
      method: options.method,
      url: finalUrl,
    };

    return this.options.fetch(request.url, {
      body: JSON.stringify(request.body),
      headers: request.headers,
      method: request.method,
    }).then((response) => {
      return parseJson(response).then((json) => {
        return {
          body: json,
          headers: parseHeaders(response),
          ok: response.ok,
          request,
          status: response.status,
          statusText: response.statusText,
        };
      });
    });
  }
}

export class $Resource {
  protected client: $HttpClient;

  constructor(options: $HttpClientOptions) {
    this.client = new $HttpClient(options);
  }
}

export interface AccessTokenWrappersPostAccessTokenParameters {
  headers?: $HttpHeaders;
}

export interface ConfigurationsGetConfigurationParameters {
  headers?: $HttpHeaders;
}

export interface FeedbacksPostFeedbackParameters {
  body: com.edsancha.medallia.api.v0.models.Feedback;
  headers?: $HttpHeaders;
}

export type AccessTokenWrappersPostAccessTokenResponse = $HttpOk<com.edsancha.medallia.api.v0.models.AccessTokenWrapper> | $HttpUnauthorized<undefined> | $HttpInternalServerError<undefined>;
export type ConfigurationsGetConfigurationResponse = $HttpOk<com.edsancha.medallia.api.v0.models.Configuration> | $HttpBadRequest<undefined> | $HttpUnauthorized<undefined> | $HttpInternalServerError<undefined>;
export type FeedbacksPostFeedbackResponse = $HttpOk<undefined> | $HttpBadRequest<undefined> | $HttpUnauthorized<undefined> | $HttpInternalServerError<undefined>;

export class AccessTokenWrappersResource extends $Resource {
  /*This API is used to retrieve the temporary access token that allows your app to access all other APIs*/
  public postAccessToken(params: AccessTokenWrappersPostAccessTokenParameters = {}): Promise<AccessTokenWrappersPostAccessTokenResponse> {
    return this.client.request({
      endpoint: '/accessToken',
      headers: params.headers,
      method: 'POST',
    });
  }
}

export class ConfigurationsResource extends $Resource {
  /*This API returns the full configuration as defined in the Medallia Digital command center. It returns the list of surveys, their content and business logic as well as targeting and segmentation rules.*/
  public getConfiguration(params: ConfigurationsGetConfigurationParameters = {}): Promise<ConfigurationsGetConfigurationResponse> {
    return this.client.request({
      endpoint: '/configuration',
      headers: params.headers,
      method: 'GET',
    });
  }
}

export class FeedbacksResource extends $Resource {
  /*This API allows the application to submit feedback collected in the app to the Medallia Digital*/
  public postFeedback(params: FeedbacksPostFeedbackParameters): Promise<FeedbacksPostFeedbackResponse> {
    return this.client.request({
      body: params.body,
      endpoint: '/feedback',
      headers: params.headers,
      method: 'POST',
    });
  }
}

export interface ClientInstance {
  accessTokenWrappers: AccessTokenWrappersResource;
  configurations: ConfigurationsResource;
  feedbacks: FeedbacksResource;
}

export function createClient(options: $HttpClientOptions): ClientInstance {
  return {
    accessTokenWrappers: new AccessTokenWrappersResource(options),
    configurations: new ConfigurationsResource(options),
    feedbacks: new FeedbacksResource(options),
  };
}