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_ from \"lodash\";\n\nexport class GenericDatasource {\n\n  constructor(instanceSettings, $q, backendSrv, templateSrv) {\n    this.type = instanceSettings.type;\n    this.url = instanceSettings.url;\n    this.name = instanceSettings.name;\n    this.q = $q;\n    this.backendSrv = backendSrv;\n    this.templateSrv = templateSrv;\n    this.withCredentials = instanceSettings.withCredentials;\n    this.headers = {'Content-Type': 'application/json'};\n    if (typeof instanceSettings.basicAuth === 'string' && instanceSettings.basicAuth.length > 0) {\n      this.headers['Authorization'] = instanceSettings.basicAuth;\n    }\n  }\n\n  query(options) {\n    var query = this.buildQueryParameters(options);\n    query.targets = query.targets.filter(t => !t.hide);\n\n    if (query.targets.length <= 0) {\n      return this.q.when({data: []});\n    }\n\n    if (this.templateSrv.getAdhocFilters) {\n      query.adhocFilters = this.templateSrv.getAdhocFilters(this.name);\n    } else {\n      query.adhocFilters = [];\n    }\n\n    return this.doRequest({\n      url: this.url + '/query',\n      data: query,\n      method: 'POST'\n    });\n  }\n\n  testDatasource() {\n    return this.doRequest({\n      url: this.url + '/',\n      method: 'GET',\n    }).then(response => {\n      if (response.status === 200) {\n        return { status: \"success\", message: \"Data source is working\", title: \"Success\" };\n      }\n    });\n  }\n\n  annotationQuery(options) {\n    var query = this.templateSrv.replace(options.annotation.query, {}, 'glob');\n    var annotationQuery = {\n      range: options.range,\n      annotation: {\n        name: options.annotation.name,\n        datasource: options.annotation.datasource,\n        enable: options.annotation.enable,\n        iconColor: options.annotation.iconColor,\n        query: query\n      },\n      rangeRaw: options.rangeRaw\n    };\n\n    return this.doRequest({\n      url: this.url + '/annotations',\n      method: 'POST',\n      data: annotationQuery\n    }).then(result => {\n      return result.data;\n    });\n  }\n\n  metricFindQuery(query) {\n    var interpolated = {\n        target: this.templateSrv.replace(query, null, 'regex')\n    };\n\n    return this.doRequest({\n      url: this.url + '/search',\n      data: interpolated,\n      method: 'POST',\n    }).then(this.mapToTextValue);\n  }\n\n  mapToTextValue(result) {\n    return _.map(result.data, (d, i) => {\n      if (d && d.text && d.value) {\n        return { text: d.text, value: d.value };\n      } else if (_.isObject(d)) {\n        return { text: d, value: i};\n      }\n      return { text: d, value: d };\n    });\n  }\n\n  doRequest(options) {\n    options.withCredentials = this.withCredentials;\n    options.headers = this.headers;\n\n    return this.backendSrv.datasourceRequest(options);\n  }\n\n  buildQueryParameters(options) {\n    //remove placeholder targets\n    options.targets = _.filter(options.targets, target => {\n      return target.target !== 'select metric';\n    });\n\n    var targets = _.map(options.targets, target => {\n      return {\n        target: this.templateSrv.replace(target.target, options.scopedVars, 'regex'),\n        refId: target.refId,\n        hide: target.hide,\n        type: target.type || 'timeserie'\n      };\n    });\n\n    options.targets = targets;\n\n    return options;\n  }\n\n  getTagKeys(options) {\n    return new Promise((resolve, reject) => {\n      this.doRequest({\n        url: this.url + '/tag-keys',\n        method: 'POST',\n        data: options\n      }).then(result => {\n        return resolve(result.data);\n      });\n    });\n  }\n\n  getTagValues(options) {\n    return new Promise((resolve, reject) => {\n      this.doRequest({\n        url: this.url + '/tag-values',\n        method: 'POST',\n        data: options\n      }).then(result => {\n        return resolve(result.data);\n      });\n    });\n  }\n\n}\n"]}