try to adddiscrete type

src/index.ts

@@ -3,8 +3,9 @@ import { ChartwerkPod, VueChartwerkPodMixin, TimeFormat, AxisFormat } from '@cha
 import { BarConfig } from './models/bar_options';
 import { BarSeries } from './models/bar_series';
 import { BarAnnotation } from './models/bar_annotation';
+import { DataProcessor } from './models/data_processor';
 
-import { BarSerie, BarOptions, RowValues } from './types';
+import { BarSerie, BarOptions } from './types';
 import { findClosest } from './utils';
 
 import * as d3 from 'd3';
@@ -13,14 +14,16 @@ import * as _ from 'lodash';
 
 export class ChartwerkBarPod extends ChartwerkPod<BarSerie, BarOptions> {
   barYScale: null | d3.ScaleLinear<number, number> = null;
-  _seriesDataForRendring = [];
+  dataProcessor: DataProcessor;
   series: BarSeries;
   options: BarConfig;
 
+
   constructor(el: HTMLElement, _series: BarSerie[] = [], _options: BarOptions = {}) {
     super(el, _series, _options);
     this.series = new BarSeries(_series);
     this.options = new BarConfig(_options);
+    this.dataProcessor = new DataProcessor(this.series.visibleSeries, this.options);
   }
 
   protected renderMetrics(): void {

src/models/data_processor.ts

@@ -1,36 +1,60 @@
-import { BarSerie, BarOptions, Datapoint, Color, ValueX, OpacityFormatter } from '../types';
+import { BarSerie, BarOptions, Datapoint, Color, ValueX, OpacityFormatter, BarPodType } from '../types';
 
 import * as _ from 'lodash';
 
 export type DataRow = {
-  key: number, // x
-  values: number[], // y list
-  colors: string[],
-  opacity: number[],
-  serieTarget: string,
+  key: number; // x
+  data: {
+    [serieTarget: string]: {
+      values: number[]; // y list
+      colors: string[];
+      opacity: number[];
+    }
+  };
+  maxSumm: number;
+  minSubtraction: number;
 }
 
 export class DataProcessor {
   _formattedDataRows: DataRow[];
 
   constructor(protected series: BarSerie[], protected options: BarOptions) {
-    
+    this.setDataRowsForNonDiscreteType();
   }
 
   public get dataRows(): DataRow[] {
     return this._formattedDataRows;
   }
 
+  protected setDataRowsForDiscreteType(): void {
+    const groupByList = (
+      this.options.type[BarPodType.DISCRETE].groupBy.x ||
+      _.map(_.first(this.series).datapoints, datapoint => datapoint[0])
+    );
+    let rows = [];
+    // TODO: not effective
+    for(let groupItem of groupByList) {
+      for(let serie of this.series) {
+        const datapoint = _.find(serie.datapoints, )
+      }
+    }
+  }
+
   protected setDataRowsForNonDiscreteType(): void {
     for(let serie of this.series) {
       const rows = _.map(serie.datapoints, (datapoint: Datapoint) => {
         const values = _.tail(datapoint);
         return {
           key: datapoint[0], // x
+          data: {
+            [serie.target]: {
               values, // y list
               colors: this.getColorsForEachValue(values, serie.color, datapoint[0], serie.target),
               opacity: this.getOpacityForEachValue(values, serie.opacityFormatter, datapoint[0], serie.target),
-          target: serie.target,
+            }
+          },
+          maxSumm: this.getMaxSumm(values), // max y axis scale
+          minSubtraction: this.getMinSubtraction(values), // min y axis scale
         }
       });
       this._formattedDataRows = _.concat(this._formattedDataRows, rows);
@@ -57,4 +81,12 @@ export class DataProcessor {
     }
     return _.map(values, (value, i) => opacity({ value, barIndex: i, key, target })); 
   }
+
+  getMaxSumm(values: number[]): number {
+    return values.reduce((prev, curr) => curr > 0 ? prev + curr : prev, 0);
+  }
+
+  getMinSubtraction(values: number[]): number {
+    return values.reduce((prev, curr) => curr < 0 ? prev + curr : prev, 0);
+  }
 }

src/types.ts

@@ -25,7 +25,8 @@ export type BarSerie = Serie & BarSerieAdditionalParams;
 export type BarAdditionalOptions = {
   type: { // BarPodType.DISCRETE or BarPodType.NON_DISCRETE. Cant be both
     [BarPodType.DISCRETE]: {
-      groupBy: { x: ValueX[] }; // union bars as one group, see examples/demo-group-by.html
+      // union bars as one group, see examples/demo-group-by.html
+      groupBy: { x: ValueX[] }; // use list of X values from first Serie by default
       innerSize: { value: number, type?: SizeType.PERCENT | SizeType.PX }; // size of bars inside one group
       groupSize: { value: number, type?: SizeType.PERCENT | SizeType.PX };
     };