import { PanelData, TimeRange } from '@grafana/data';
import { DataProcessor } from '../grafana/data_processor';

import { ExtremumOptions } from 'types';

import * as _ from 'lodash';

// Convert Grafana options into Chartwerk options
export class Series {
  private processor; 
  private _seriesList;

  constructor(private grafanaData: PanelData, timeRange: TimeRange, private gaugeValueOptions: ExtremumOptions) {
    if(this._isSerieOneValue()) {
      this._seriesList = [{ datapoints: [[0, gaugeValueOptions.value]] }];
      return;
    }

    this.processor = new DataProcessor({});
    this._seriesList = this.processor.getSeriesList({
      dataList: grafanaData.series,
      range: timeRange,
    });
    this._seriesList = this._updateSeriesListWithChartwerkParams(this._seriesList);
  }

  public getChartwerkSeries(): any[] {
    return this._seriesList
  }

  private _updateSeriesListWithChartwerkParams(series: any[]): any[] {
    return _.map(series, (serie: any, idx: number) => {
      return {
        target: serie.alias,
        color: serie.color,
        datapoints: _.map(serie.datapoints, (row) => _.reverse(row)),
        alias: serie.label,
      };
    });
  }

  private _isSerieOneValue(): boolean {
    return _.isNumber(this.gaugeValueOptions.value);
  }
}