"use strict";

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: admin
 * Copyright IBM Corp. 2015, 2017
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */
define(['underscore', 'bi/commons/ui/core/Class', 'bi/admin/datasource/services/ApiSvc', 'bi/admin/nls/StringResource'], function (_, Class, Api, StringResource) {
  'use strict'; //NOSONAR: meant to be strict

  var _singletonInstance = null;
  var DataSourceApp = Class.extend({
    systemTypes: ['JDBC', 'CUBE', 'JSON', 'ODATA'],
    exclusiveTypes: ['CUBE', 'JSON', 'ODATA'],
    _contexts: [],
    PASSWORD: '###PASSWORD###',
    init: function init() {
      var filterTypes = _.difference(this.systemTypes, this.exclusiveTypes);

      Api.filterTypes = filterTypes;
    },
    SlideOutDataSourceList: function SlideOutDataSourceList(glassContext, parentSlideout, dataSourceListTitle) {
      this._baseSlideOut = parentSlideout ? parentSlideout : this._baseSlideOut;
      this._glassContext = glassContext ? glassContext : this._glassContext;
      Api.glassContext = this._glassContext;

      if (dataSourceListTitle === undefined) {
        dataSourceListTitle = StringResource.get('dataServerPaneTitle');
      }

      glassContext.appController.showSlideOut({
        parent: this._baseSlideOut,
        overlay: true,
        width: '400px',
        label: dataSourceListTitle,
        content: {
          module: 'bi/admin/datasource/slideout/DataSourceListPane',
          id: 'DataSourcePane',
          title: dataSourceListTitle,
          showGobackButton: true
        }
      }); // get current sign on name space

      return this.getCurrentNameSpace().then(function (nsObj) {
        this._glassContext._currentNameSpace = nsObj;
      }.bind(this));
    },
    getCurrentNameSpace: function getCurrentNameSpace() {
      // get current sign on name space
      var url = 'v1/identity';
      return this.glassContext.services.fetch.get(url).then(function (response) {
        var identity = response.data;

        var inNS = _.find(identity.data, function (item) {
          return item.type === 'namespace' && item.searchPath.split('"')[1] === ":";
        });

        var exNS = _.find(identity.data, function (item) {
          return item.type === 'namespace' && item.searchPath.split('"')[1] !== ":";
        });

        var currentNS = exNS ? exNS : inNS;
        return {
          id: currentNS.id,
          searchPath: currentNS.searchPath,
          type: currentNS.type
        };
      }.bind(this));
    },
    //get all tables within a schema
    getTables: function getTables(schemaId, signonInfo) {
      return new Promise(function (resolve, reject) {
        var url = 'v1/metadata/schemas/tables?id=' + encodeURIComponent(schemaId);
        var connObj = {
          connections: signonInfo
        };
        var connectionSpec = "connectionSpec=" + encodeURIComponent(JSON.stringify(connObj));
        var ajaxOptions = {
          'dataType': 'json',
          'type': 'GET',
          'url': url,
          'data': connectionSpec
        };
        return this.glassContext.getCoreSvc('.Ajax').ajax(ajaxOptions).then(function (response) {
          resolve(response.data);
        }, function (error) {
          if (error.jqXHR) {
            var errorMessage = error.jqXHR.responseJSON ? error.jqXHR.responseJSON.msg : error.jqXHR.responseText;
            this.glassContext.appController.showErrorMessage(errorMessage, StringResource.get('error'));
          }

          reject(error);
        }.bind(this));
      }.bind(this));
    },
    //get schema load options spec.
    getSchema: function getSchema(schemaId, signonInfo) {
      return new Promise(function (resolve, reject) {
        var url = 'v1/metadata/schemas/?id=' + encodeURIComponent(schemaId);
        var connObj = {
          connections: signonInfo
        };
        var connectionSpec = "connectionSpec=" + encodeURIComponent(JSON.stringify(connObj));
        var ajaxOptions = {
          'dataType': 'json',
          'type': 'GET',
          'url': url,
          'data': connectionSpec
        };
        return this.glassContext.getCoreSvc('.Ajax').ajax(ajaxOptions).then(function (response) {
          resolve(response.data.data[0]);
        }, function (error) {
          if (error.jqXHR) {
            var errorMessage = error.jqXHR.responseJSON ? error.jqXHR.responseJSON.msg : error.jqXHR.responseText;
            this.glassContext.appController.showErrorMessage(errorMessage, StringResource.get('error'));
          }

          reject(error);
        }.bind(this));
      }.bind(this));
    },
    //update schema with load option spec.
    updateSchema: function updateSchema(schemaId, data) {
      return new Promise(function (resolve, reject) {
        Api.schemas.update(schemaId, data).then(resolve, function (err, jqXHR) {
          var errorMessage = jqXHR.responseJSON ? jqXHR.responseJSON.msg : jqXHR.responseText;
          this.glassContext.appController.showErrorMessage(errorMessage, StringResource.get('error'));
          reject(err, jqXHR);
        }.bind(this));
      }.bind(this));
    },
    //create new schema in sources
    createSchemaSource: function createSchemaSource(connId, data) {
      return new Promise(function (resolve, reject) {
        Api.schemaSources.create(connId, data).then(function () {
          //return the Moser response containing storeId of new created schema.
          var obj = {
            getResponseHeader: arguments[2].getResponseHeader
          };
          resolve(obj);
        }, function (err, jqXHR) {
          var errorMessage = jqXHR.responseJSON ? jqXHR.responseJSON.msg : jqXHR.responseText;
          this.glassContext.appController.showErrorMessage(errorMessage, StringResource.get('error'));
          reject(err, jqXHR);
        }.bind(this));
      }.bind(this));
    },
    CancelTask: function CancelTask(taskId, xCaAffinity) {
      return new Promise(function (resolve, reject) {
        Api.tasks.cancel(taskId, xCaAffinity).then(resolve, function (err, jqXHR) {
          this.glassContext.appController.showErrorMessage(jqXHR.responseJSON.messages[0], StringResource.get('error'));
          reject(err, jqXHR);
        }.bind(this));
      }.bind(this));
    },

    /**
     * This method fetches the history of the schema with schemaID. Makes a call to ApiSvc._getHistoryApiSet.
     * @param {String} The schemaID of the selected schema
     * @return {Promise} A promise with the schema history data
     */
    getHistory: function getHistory(schemaId) {
      return new Promise(function (resolve, reject) {
        Api.history.list(schemaId).then(function (response) {
          resolve(response.data);
        }, function (err, jqXHR) {
          this.glassContext.appController.showErrorMessage(jqXHR.responseJSON.msg, StringResource.get('error'));
          reject(err, jqXHR);
        }.bind(this));
      }.bind(this));
    },
    CreateSchema: function CreateSchema(item, view) {
      var dataItem = {
        schema: item.schema,
        catalog: item.catalog,
        type: item.type,
        schemaType: item.schemaType || 'user',
        defaultName: item.defaultName,
        specification: item.specification,
        status: 'pending'
      };
      return this.createSchemaSource(view.conn.id, dataItem);
    },
    ClearSchema: function ClearSchema(item) {
      return new Promise(function (resolve, reject) {
        Api.schemas.clear(item.id).then(resolve, function (err, jqXHR) {
          this.glassContext.appController.showErrorMessage(jqXHR.responseJSON.messages[0], StringResource.get('error'));
          reject(err, jqXHR);
        }.bind(this));
      }.bind(this));
    },

    /**
     * get data source connection info and render GroupListView.
     * @private
     * @param dataSources {Array<Object>} each object includes the specified data source info.
     * dataSources[i]: {
     * 	_type: 'dataSource', activeConnection: Object, connectionString: ';LOCAL;OL;DBInfo_Type=MS;...', context: Object, defaultDescription: 'Description goes here',
     * 	defaultName: 'new', disabled: 'false', hasChildren: 'true', hidden: 'false', id: 'iF0651295A97E464A83F22D202AA9E797', objectClass: 'dataSource',
     * 	permissions: Array, searchPath: 'CAMID(":")/dataSource[@name='new']', shown: 'true', tenantID: '', usage: 'object'
     * }
     */
    FillConnectionList: function FillConnectionList(dataSource, formView) {
      var items = _.map(dataSource.connections, function (conn) {
        var writable = conn.permissions && conn.permissions.indexOf('write') > -1 ? true : false;
        return {
          id: dataSource.id,
          connId: conn.id,
          title: conn.defaultName,
          defaultName: conn.defaultName,
          defaultDescription: conn.defaultDescription,
          connectionString: conn.connectionString,
          credentialNamespaces: conn.credentialNamespaces,
          disabled: conn.disabled,
          hidden: conn.hidden,
          writable: writable
        };
      });

      items = _.filter(items, function (item) {
        return item != null;
      });
      var viewObj = {};
      viewObj.items = items;
      viewObj.writable = dataSource.writable;
      viewObj.datasourceName = dataSource.defaultName; // defaultDescription will be undefined when user save a "", so need to change it to "" here

      viewObj.datasourceDescription = dataSource.defaultDescription || '';
      viewObj.datasourceId = dataSource.id;
      formView.items = items;
      formView.render(viewObj);
      this._dcListView = formView;
    }
  });
  var _static = {
    getInstance: function getInstance() {
      if (!_singletonInstance) {
        _singletonInstance = new DataSourceApp();
      }

      return _singletonInstance;
    }
  };
  return _static.getInstance();
});