/*
 * Selling Partner API for Listings Items
 * The Selling Partner API for Listings Items (Listings Items API) provides programmatic access to selling partner listings on Amazon. Use this API in collaboration with the Selling Partner API for Product Type Definitions, which you use to retrieve the information about Amazon product types needed to use the Listings Items API.  For more information, see the [Listings Items API Use Case Guide](doc:listings-items-api-v2021-08-01-use-case-guide).
 *
 * OpenAPI spec version: 2021-08-01
 *
 * NOTE: This class is auto generated by the swagger code generator program.
 * https://github.com/swagger-api/swagger-codegen.git
 *
 * Swagger Codegen version: 2.4.9
 *
 * Do not edit the class manually.
 *
 */

import superagent from "superagent";
import querystring from "querystring";
import { URL } from "node:url";

/**
 * @module listingsItems_2021-08-01/ApiClient
 * @version 2021-08-01
 */

/**
 * Private class used by ApiClient class. Used for executing LWA refresh token flow.
 * @class
 */
class LwaOAuthClient {
  /**
   * Private member to store LWA credential and refresh token.
   * @type {Object.<String, String>}
   */
  #lwaClientInfo = {};

  /**
   * Constructs a new LwaOAuthClient.
   * @param {String} clientId LWA Client ID.
   * @param {String} clientSecret LWA Client Secret.
   * @param {String} refreshToken LWA Refresh token.
   */
  constructor(clientId, clientSecret, refreshToken) {
    this.#lwaClientInfo = {
      clientId,
      clientSecret,
      refreshToken,
    };
  }

  /**
   * Execute LWA refresh token flow to retrieve access token to be used for SP-API calls.
   * @returns {Promise<String>} LWA access token.
   */
  retrieveAccessToken = async () => {
    const res = await this.#doRefresh();
    return res.access_token;
  };

  /**
   * Private method to execute LWA token refresh flow.
   * @returns {Promise<Object>} LWA token response.
   */
  #doRefresh = async () => {
    const res = await superagent
      .post("https://api.amazon.com/auth/o2/token")
      .send(
        `grant_type=refresh_token&refresh_token=${
          this.#lwaClientInfo.refreshToken
        }&client_id=${this.#lwaClientInfo.clientId}&client_secret=${
          this.#lwaClientInfo.clientSecret
        }`,
      )
      .set("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
    return res.body;
  };
}

/**
 * Private class used by ApiClient class. Used for executing LWA refresh token flow and calling Tokens API to retrieve RDT.
 * @class
 */
class TokensApiClient {
  /**
   * Private member to execute LWA refresh token flow.
   * @type {Object.<LwaOAuthClient>}
   */
  #lwaClient = null;

  /**
   * Private member to store 'dataElements' parameter for Tokens API call.
   * @type {Array.<String>}
   */
  #dataElements = null;

  /**
   * Constructs a new TokensApiClient.
   * @param {String} clientId LWA Client ID.
   * @param {String} clientSecret LWA Client Secret.
   * @param {String} refreshToken LWA Refresh token.
   * @param {Array.<String>} dataElements Optional specifiers for PII data elements tp retrieve.
   */
  constructor(clientId, clientSecret, refreshToken, dataElements) {
    this.#lwaClient = new LwaOAuthClient(
      clientId,
      clientSecret,
      refreshToken,
      dataElements,
    );
    if (dataElements && !Array.isArray(dataElements)) {
      throw new Error(
        `dataElements parameter to TokensApiClient constructor must be array of string. Illegal parameter:${dataElements}`,
      );
    }
    this.#dataElements = dataElements ? dataElements : null;
  }

  /**
   * Execute createRestrictedDataToken to retrieve RDT to be used for PII-handling SP-API calls.
   * @param {String} method method for SP-API request.
   * @param {String} url URL for SP-API call to be made.
   * @param {Array.<String>} dataElements specify PII information to get from "buyerInfo", "shippingAddress" and "buyerTaxInformation".
   * @returns {Promise<String>} Restricted Data Token (RDT).
   */
  retrieveRestrictedDataToken = async (method, url) => {
    const accessToken = await this.#lwaClient.retrieveAccessToken();
    const urlToRequest = new URL(url);
    const res = await this.#doCreateRestrictedDataToken(
      accessToken,
      method,
      urlToRequest,
    );
    return res.restrictedDataToken;
  };

  /**
   * Private method to execute createRestrictedDataToken
   * @param {String} accessToken Access token to call RDT request.
   * @param {URL} url URL object for URL string manipulation.
   * @param {Array.<String>} dataElements specify PII information to get from "buyerInfo", "shippingAddress" and "buyerTaxInformation".
   * @returns {Promise<Object>} createRestrictedDataToken response.
   */
  #doCreateRestrictedDataToken = async (accessToken, method, url) => {
    const tokenApiUrl = `${url.origin}/tokens/2021-03-01/restrictedDataToken`;
    const pathToRequest = url.pathname;
    const res = await superagent
      .post(tokenApiUrl)
      .send({
        restrictedResources: [
          {
            method: method,
            path: pathToRequest,
            dataElements: this.#dataElements ? this.#dataElements : undefined,
          },
        ],
      })
      .set("Content-Type", "application/json")
      .set({ "x-amz-access-token": accessToken });
    return res.body;
  };
}

/**
 * Manages low level client-server communications, parameter marshalling, etc. There should not be any need for an
 * application to use this class directly - the *Api and model classes provide the public API for the service. The
 * contents of this file should be regarded as internal but are documented for completeness.
 * @alias module:listingsItems_2021-08-01/ApiClient
 * @class
 */
export class ApiClient {
  #tokenForApiCall = null;
  #lwaClient = null;
  #rdtClient = null;

  /**
   * Constructs a new ApiClient.
   * @param {String} baseUrl Base URL of endpoint ex. "https://sellingpartnerapi-na.amazon.com"
   */
  constructor(baseUrl) {
    /**
     * The base URL against which to resolve every API call's (relative) path.
     * @type {String}
     * @default https://sellingpartnerapi-na.amazon.com
     */
    this.basePath = baseUrl
      ? baseUrl.replace(/\/+$/, "")
      : "https://sellingpartnerapi-na.amazon.com".replace(/\/+$/, "");

    /**
     * The authentication methods to be included for all API calls.
     * @type {Array.<String>}
     */
    this.authentications = {};

    /**
     * The default HTTP headers to be included for all API calls.
     * @type {Array.<String>}
     * @default {}
     */
    this.defaultHeaders = {};

    /**
     * The default HTTP timeout for all API calls.
     * @type {Number}
     * @default 60000
     */
    this.timeout = 60000;

    /**
     * If set to false an additional timestamp parameter is added to all API GET calls to
     * prevent browser caching
     * @type {Boolean}
     * @default true
     */
    this.cache = true;

    /**
     * If set to true, the client will save the cookies from each server
     * response, and return them in the next request.
     * @default false
     */
    this.enableCookies = false;

    /*
     * Used to save and return cookies in a node.js (non-browser) setting,
     * if this.enableCookies is set to true.
     */
    if (typeof window === "undefined") {
      this.agent = new superagent.agent();
    }

    /*
     * Allow user to override superagent agent
     */
    this.requestAgent = null;
  }

  /**
   * Returns this ApiClient so that you can chain the methods.
   * @param {String} clientId LWA client ID.
   * @param {String} clientSecret LWA client secret.
   * @param {String} refreshToken LWA refresh token.
   * @param {Array.<String>} dataElementsOption specify PII information to get from "buyerInfo", "shippingAddress" and "buyerTaxInformation".
   * @returns {ApiClient} This ApiClient, which is going to use give accessToken for all API calls.
   */
  enableAutoRetrievalRestrictedDataToken(
    clientId,
    clientSecret,
    refreshToken,
    dataElementsOption,
  ) {
    // TODO
    if (!clientId || !clientSecret || !refreshToken) {
      throw new Error(
        "invalid parameter(s) to enableAutoRetrievalRestrictedDataToken.",
      );
    }
    this.#rdtClient = new TokensApiClient(
      clientId,
      clientSecret,
      refreshToken,
      dataElementsOption,
    );
    return this;
  }

  /**
   * Returns this ApiClient so that you can chain the methods.
   * @param {String} clientId LWA client ID.
   * @param {String} clientSecret LWA client secret.
   * @param {String} refreshToken LWA refresh token.
   * @returns {ApiClient} This ApiClient, which is going to use give accessToken for all API calls.
   */
  enableAutoRetrievalAccessToken(clientId, clientSecret, refreshToken) {
    if (!clientId || !clientSecret || !refreshToken) {
      throw new Error(
        "invalid parameter(s) to enableAutoRetrievalAccessToken.",
      );
    }
    this.#lwaClient = new LwaOAuthClient(clientId, clientSecret, refreshToken);
    return this;
  }

  /**
   * Returns this ApiClient so that you can chain the methods.
   * @param {String} restrictedDataToken RDT token to use for SP-API call.
   * @returns {ApiClient} This ApiClient, which is going to use give RDT for all API calls.
   */
  applyRestrictedDataToken(restrictedDataToken) {
    this.#tokenForApiCall = restrictedDataToken;
    return this;
  }

  /**
   * Returns a string representation for an actual parameter.
   * @param param The actual parameter.
   * @returns {String} The string representation of <code>param</code>.
   */
  paramToString(param) {
    if (param == undefined || param == null) {
      return "";
    }
    if (param instanceof Date) {
      return param.toJSON();
    }

    return param.toString();
  }

  /**
   * Builds full URL by appending the given path to the base URL and replacing path parameter place-holders with parameter values.
   * NOTE: query parameters are not handled here.
   * @param {String} path The path to append to the base URL.
   * @param {Object} pathParams The parameter values to append.
   * @returns {String} The encoded path with parameter values substituted.
   */
  buildUrl(path, pathParams) {
    if (!path.match(/^\//)) {
      path = "/" + path;
    }

    var url = this.basePath + path;
    url = url.replace(/\{([\w-]+)\}/g, (fullMatch, key) => {
      var value;
      if (pathParams.hasOwnProperty(key)) {
        value = this.paramToString(pathParams[key]);
      } else {
        value = fullMatch;
      }

      return encodeURIComponent(value);
    });

    return url;
  }

  /**
   * Checks whether the given content type represents JSON.<br>
   * JSON content type examples:<br>
   * <ul>
   * <li>application/json</li>
   * <li>application/json; charset=UTF8</li>
   * <li>APPLICATION/JSON</li>
   * </ul>
   * @param {String} contentType The MIME content type to check.
   * @returns {Boolean} <code>true</code> if <code>contentType</code> represents JSON, otherwise <code>false</code>.
   */
  isJsonMime(contentType) {
    return Boolean(
      contentType != null && contentType.match(/^application\/json(;.*)?$/i),
    );
  }

  /**
   * Chooses a content type from the given array, with JSON preferred; i.e. return JSON if included, otherwise return the first.
   * @param {Array.<String>} contentTypes
   * @returns {String} The chosen content type, preferring JSON.
   */
  jsonPreferredMime(contentTypes) {
    for (var i = 0; i < contentTypes.length; i++) {
      if (this.isJsonMime(contentTypes[i])) {
        return contentTypes[i];
      }
    }

    return contentTypes[0];
  }

  /**
   * Checks whether the given parameter value represents file-like content.
   * @param param The parameter to check.
   * @returns {Boolean} <code>true</code> if <code>param</code> represents a file.
   */
  isFileParam(param) {
    // fs.ReadStream in Node.js and Electron (but not in runtime like browserify)
    if (typeof require === "function") {
      let fs;
      try {
        fs = require("fs");
      } catch (err) {}
      if (fs && fs.ReadStream && param instanceof fs.ReadStream) {
        return true;
      }
    }

    // Buffer in Node.js
    if (typeof Buffer === "function" && param instanceof Buffer) {
      return true;
    }

    // Blob in browser
    if (typeof Blob === "function" && param instanceof Blob) {
      return true;
    }

    // File in browser (it seems File object is also instance of Blob, but keep this for safe)
    if (typeof File === "function" && param instanceof File) {
      return true;
    }

    return false;
  }

  /**
   * Normalizes parameter values:
   * <ul>
   * <li>remove nils</li>
   * <li>keep files and arrays</li>
   * <li>format to string with `paramToString` for other cases</li>
   * </ul>
   * @param {Object.<String, Object>} params The parameters as object properties.
   * @returns {Object.<String, Object>} normalized parameters.
   */
  normalizeParams(params) {
    var newParams = {};
    for (var key in params) {
      if (
        params.hasOwnProperty(key) &&
        params[key] != undefined &&
        params[key] != null
      ) {
        var value = params[key];
        if (this.isFileParam(value) || Array.isArray(value)) {
          newParams[key] = value;
        } else {
          newParams[key] = this.paramToString(value);
        }
      }
    }

    return newParams;
  }

  /**
   * Enumeration of collection format separator strategies.
   * @enum {String}
   * @readonly
   */
  static CollectionFormatEnum = {
    /**
     * Comma-separated values. Value: <code>csv</code>
     * @const
     */
    CSV: ",",

    /**
     * Space-separated values. Value: <code>ssv</code>
     * @const
     */
    SSV: " ",

    /**
     * Tab-separated values. Value: <code>tsv</code>
     * @const
     */
    TSV: "\t",

    /**
     * Pipe(|)-separated values. Value: <code>pipes</code>
     * @const
     */
    PIPES: "|",

    /**
     * Native array. Value: <code>multi</code>
     * @const
     */
    MULTI: "multi",
  };

  /**
   * Builds a string representation of an array-type actual parameter, according to the given collection format.
   * @param {Array} param An array parameter.
   * @param {module:listingsItems_2021-08-01/ApiClient.CollectionFormatEnum} collectionFormat The array element separator strategy.
   * @returns {String|Array} A string representation of the supplied collection, using the specified delimiter. Returns
   * <code>param</code> as is if <code>collectionFormat</code> is <code>multi</code>.
   */
  buildCollectionParam(param, collectionFormat) {
    if (param == null) {
      return null;
    }
    switch (collectionFormat) {
      case "csv":
        return param.map(this.paramToString).join(",");
      case "ssv":
        return param.map(this.paramToString).join(" ");
      case "tsv":
        return param.map(this.paramToString).join("\t");
      case "pipes":
        return param.map(this.paramToString).join("|");
      case "multi":
        //return the array directly as SuperAgent will handle it as expected
        return param.map(this.paramToString);
      default:
        throw new Error("Unknown collection format: " + collectionFormat);
    }
  }

  /**
   * Applies authentication headers to the request.
   * @param {String} accessOrRdtToken Either Access Token or Restricted Data Token to add as 'x-amz-access-token'.
   * @returns {ApiClient} This ApiClient, which is going to use give RDT for all API calls.
   */
  applyXAmzAccessTokenToRequest(accessOrRdtToken) {
    if (!accessOrRdtToken) {
      throw new Error(
        "empty string, null or undefined passed to applyXAmzAccessTokenToRequest",
      );
    }
    this.#tokenForApiCall = accessOrRdtToken;
    return this;
  }

  /**
   * Deserializes an HTTP response body into a value of the specified type.
   * @param {Object} response A SuperAgent response object.
   * @param {(String|Array.<String>|Object.<String, Object>|Function)} returnType The type to return. Pass a string for simple types
   * or the constructor function for a complex type. Pass an array containing the type name to return an array of that type. To
   * return an object, pass an object with one property whose name is the key type and whose value is the corresponding value type:
   * all properties on <code>data<code> will be converted to this type.
   * @returns A value of the specified type.
   */
  deserialize(response, returnType) {
    if (response == null || returnType == null || response.status == 204) {
      return null;
    }

    // Rely on SuperAgent for parsing response body.
    // See http://visionmedia.github.io/superagent/#parsing-response-bodies
    var data = response.body;
    if (
      data == null ||
      (typeof data === "object" &&
        typeof data.length === "undefined" &&
        !Object.keys(data).length)
    ) {
      // SuperAgent does not always produce a body; use the unparsed response as a fallback
      data = response.text;
    }

    return ApiClient.convertToType(data, returnType);
  }

  /**
   * Invokes the REST service using the supplied settings and parameters.
   * @param {String} path The base URL to invoke.
   * @param {String} httpMethod The HTTP method to use.
   * @param {Object.<String, String>} pathParams A map of path parameters and their values.
   * @param {Object.<String, Object>} queryParams A map of query parameters and their values.
   * @param {Object.<String, Object>} headerParams A map of header parameters and their values.
   * @param {Object.<String, Object>} formParams A map of form parameters and their values.
   * @param {Object} bodyParam The value to pass as the request body.
   * @param {Array.<String>} contentTypes An array of request MIME types.
   * @param {Array.<String>} accepts An array of acceptable response MIME types.
   * @param {(String|Array|ObjectFunction)} returnType The required type to return; can be a string for simple types or the
   * constructor for a complex type.
   * @returns {Promise} A {@link https://www.promisejs.org/|Promise} object.
   */
  async callApi(
    path,
    httpMethod,
    pathParams,
    queryParams,
    headerParams,
    formParams,
    bodyParam,
    contentTypes,
    accepts,
    returnType,
  ) {
    var url = this.buildUrl(path, pathParams);
    var request = superagent(httpMethod, url);
    if (!this.#tokenForApiCall && !this.#lwaClient && !this.#rdtClient) {
      throw new Error(
        "none of accessToken, RDT token and auto-retrieval is set.",
      );
    }

    // set query parameters
    if (httpMethod.toUpperCase() === "GET" && this.cache === false) {
      queryParams["_"] = new Date().getTime();
    }

    request.query(this.normalizeParams(queryParams));

    // set header parameters
    request.set(this.defaultHeaders).set(this.normalizeParams(headerParams));

    // set requestAgent if it is set by user
    if (this.requestAgent) {
      request.agent(this.requestAgent);
    }

    // set request timeout
    request.timeout(this.timeout);

    var contentType = this.jsonPreferredMime(contentTypes);
    if (contentType) {
      // Issue with superagent and multipart/form-data (https://github.com/visionmedia/superagent/issues/746)
      if (contentType != "multipart/form-data") {
        request.type(contentType);
      }
    } else if (!request.header["Content-Type"]) {
      request.type("application/json");
    }

    if (contentType === "application/x-www-form-urlencoded") {
      request.send(querystring.stringify(this.normalizeParams(formParams)));
    } else if (contentType == "multipart/form-data") {
      var _formParams = this.normalizeParams(formParams);
      for (var key in _formParams) {
        if (_formParams.hasOwnProperty(key)) {
          if (this.isFileParam(_formParams[key])) {
            // file field
            request.attach(key, _formParams[key]);
          } else {
            request.field(key, _formParams[key]);
          }
        }
      }
    } else if (bodyParam) {
      request.send(bodyParam);
    }

    var accept = this.jsonPreferredMime(accepts);
    if (accept) {
      request.accept(accept);
    }

    if (returnType === "Blob") {
      request.responseType("blob");
    } else if (returnType === "String") {
      request.responseType("string");
    }

    // Attach previously saved cookies, if enabled
    if (this.enableCookies) {
      if (typeof window === "undefined") {
        this.agent.attachCookies(request);
      } else {
        request.withCredentials();
      }
    }

    if (this.#tokenForApiCall) {
      // add custom header for SP-API call.
      request.set({ "x-amz-access-token": this.#tokenForApiCall });
    } else if (this.#rdtClient) {
      const rdt = await this.#rdtClient.retrieveRestrictedDataToken(
        httpMethod,
        url,
      );
      request.set({ "x-amz-access-token": rdt });
    } else if (this.#lwaClient) {
      // execute token refresh.
      const accessToken = await this.#lwaClient.retrieveAccessToken();
      request.set({ "x-amz-access-token": accessToken });
    }

    return new Promise((resolve, reject) => {
      request.end((error, response) => {
        if (error) {
          reject(error);
        } else {
          try {
            var data = this.deserialize(response, returnType);
            if (this.enableCookies && typeof window === "undefined") {
              this.agent.saveCookies(response);
            }

            resolve({ data, response });
          } catch (err) {
            reject(err);
          }
        }
      });
    });
  }

  /**
   * Parses an ISO-8601 string representation of a date value.
   * @param {String} str The date value as a string.
   * @returns {Date} The parsed date object.
   */
  static parseDate(str) {
    return new Date(str);
  }

  /**
   * Converts a value to the specified type.
   * @param {(String|Object)} data The data to convert, as a string or object.
   * @param {(String|Array.<String>|Object.<String, Object>|Function)} type The type to return. Pass a string for simple types
   * or the constructor function for a complex type. Pass an array containing the type name to return an array of that type. To
   * return an object, pass an object with one property whose name is the key type and whose value is the corresponding value type:
   * all properties on <code>data<code> will be converted to this type.
   * @returns An instance of the specified type or null or undefined if data is null or undefined.
   */
  static convertToType(data, type) {
    if (data === null || data === undefined) return data;

    switch (type) {
      case "Boolean":
        return Boolean(data);
      case "Integer":
        return parseInt(data, 10);
      case "Number":
        return parseFloat(data);
      case "String":
        return String(data);
      case "Date":
        return ApiClient.parseDate(String(data));
      case "Blob":
        return data;
      default:
        if (type === Object) {
          // generic object, return directly
          return data;
        } else if (typeof type === "function") {
          // for model type like: User
          return type.constructFromObject(data);
        } else if (Array.isArray(type)) {
          // for array type like: ['String']
          var itemType = type[0];

          return data.map((item) => {
            return ApiClient.convertToType(item, itemType);
          });
        } else if (typeof type === "object") {
          // for plain object type like: {'String': 'Integer'}
          var keyType, valueType;
          for (var k in type) {
            if (type.hasOwnProperty(k)) {
              keyType = k;
              valueType = type[k];
              break;
            }
          }

          var result = {};
          for (var k in data) {
            if (data.hasOwnProperty(k)) {
              var key = ApiClient.convertToType(k, keyType);
              var value = ApiClient.convertToType(data[k], valueType);
              result[key] = value;
            }
          }

          return result;
        } else {
          // for unknown type, return the data directly
          return data;
        }
    }
  }

  /**
   * Constructs a new map or array model from REST data.
   * @param data {Object|Array} The REST data.
   * @param obj {Object|Array} The target object or array.
   */
  static constructFromObject(data, obj, itemType) {
    if (Array.isArray(data)) {
      for (var i = 0; i < data.length; i++) {
        if (data.hasOwnProperty(i))
          obj[i] = ApiClient.convertToType(data[i], itemType);
      }
    } else {
      for (var k in data) {
        if (data.hasOwnProperty(k))
          obj[k] = ApiClient.convertToType(data[k], itemType);
      }
    }
  }
}
/**
 * The default API client implementation.
 * @type {module:listingsItems_2021-08-01/ApiClient}
 */
ApiClient.instance = new ApiClient();
