diff --git a/client/src/components/Graph.vue b/client/src/components/Graph.vue
index 929ae9d..40fbc92 100644
--- a/client/src/components/Graph.vue
+++ b/client/src/components/Graph.vue
@@ -7,7 +7,7 @@
 <script lang="ts">
 import { defineComponent, watch } from 'vue';
 import { TimeRange } from "@/types";
-import { HasticPod } from "./pods/hastic_pod";
+import { PatternPod } from "./pods/pattern_pod";
 import { getMetrics } from '../services/metrics.service';
 import { getSegments, postSegment, deleteSegment } from '../services/segments.service';
 import { LineTimeSerie } from "@chartwerk/line-pod";
@@ -17,6 +17,7 @@ import { Segment, SegmentId } from '@/types/segment';
 
 import _ from "lodash";
 
+
 // TODO: move to store
 async function resolveData(range: TimeRange): Promise<{
   timeserie: LineTimeSerie[],
@@ -80,7 +81,7 @@ export default defineComponent({
   props: {},
   mounted() {
     var s = new SegmentArray();
-    this.pod = new HasticPod(
+    this.pod = new PatternPod(
       document.getElementById('chart'),
       resolveData.bind(this),
       addSegment.bind(this),
@@ -91,6 +92,7 @@ export default defineComponent({
   },
   // TODO: it's a hack: listen real events about analytics update and use store
   watch: {
+    // TODO: choose pog based on config type
     analyticUnitConfig(newConfig, prevConfig) {
       console.log("CONFIG CHANGED");
       if(prevConfig == null) {
diff --git a/client/src/components/pods/hastic_pod.ts b/client/src/components/pods/hastic_pod.ts
index 78e12d8..6e095be 100644
--- a/client/src/components/pods/hastic_pod.ts
+++ b/client/src/components/pods/hastic_pod.ts
@@ -4,36 +4,16 @@ import { BrushOrientation } from "@chartwerk/core";
 import { SegmentsSet } from "@/types/segment_set";
 import { ANALYTIC_UNIT_COLORS } from "@/types/colors"
 import { Segment, SegmentId, SegmentType } from "@/types/segment";
-import { TimeRange  } from '@/types';
 
-export type UpdateDataCallback = (range: TimeRange) => Promise<{
-  timeserie: LineTimeSerie[],
-  segments: Segment[]
-}>;
-export type CreateSegmentCallback = (segment: Segment) => Promise<SegmentId>;
-export type DeleteSegmentCallback = (from: number, to: number) => Promise<number>;
 
-export class HasticPod extends LinePod {
-
-  private _udc: UpdateDataCallback;
-  private _csc: CreateSegmentCallback;
-  private _dsc: DeleteSegmentCallback;
-
-  private _aKeyIsDown: boolean;
-  private _sKeyIsDown: boolean;
-  private _dKeyIsDown: boolean;
-  private _labelBrush: boolean;
-  private _antiLabelBrush: boolean;
-  private _deleteBrush: boolean;
+export abstract class HasticPod<T> extends LinePod {
 
   protected segmentsContainer;
 
   constructor(
     el: HTMLElement,
-    udc: UpdateDataCallback,
-    csc: CreateSegmentCallback,
-    dsc: DeleteSegmentCallback,
-    private _segmentSet: SegmentsSet<Segment>
+    protected udc: T,
+    protected segmentSet: SegmentsSet<Segment>
   ) {
     super(el, undefined, {
       renderLegend: false,
@@ -46,47 +26,13 @@ export class HasticPod extends LinePod {
         }
       },
       eventsCallbacks: {
-        zoomIn: range => { this._updateRange(range) },
+        zoomIn: range => { this.updateRange(range) },
         zoomOut: ({x, y}) => { this._zoomOut({x, y}) },
-        panningEnd: range => { this._updateRange(range) }
+        panningEnd: range => { this.updateRange(range) }
       }
     });
 
-    this._csc = csc;
-    this._dsc = dsc;
-
-    this._sKeyIsDown = false;
-    this._aKeyIsDown = false;
-    this._dKeyIsDown = false;
-
-    this._labelBrush = false;
-    this._antiLabelBrush = false;
-
-    window.addEventListener("keydown", e => {
-      if(e.code == "KeyA") {
-        this._aKeyIsDown = true;
-      }
-      if(e.code == "KeyS") {
-        this._sKeyIsDown = true;
-      }
-      if(e.code == 'KeyD') {
-        this._dKeyIsDown = true;
-      }
-    });
-    window.addEventListener("keyup", (e) => {
-      if(e.code == "KeyA") {
-        this._aKeyIsDown = false;
-      }
-      if(e.code == "KeyS") {
-        this._sKeyIsDown = false;
-      }
-      if(e.code == 'KeyD') {
-        this._dKeyIsDown = false;
-      }
-    });
-
-    this._udc = udc;
-
+    
     this.fetchData();
   }
 
@@ -95,25 +41,6 @@ export class HasticPod extends LinePod {
     this.renderSegments();
   }
 
-  public fetchData(): void {
-    let to = Math.floor(Date.now() / 1000);
-    let from = to - 50000; // -50000 seconds
-
-    if(!(this.state.xValueRange[0] == 0 && this.state.xValueRange[1] == 1)) {
-      [from, to] = this.state?.xValueRange;
-      console.log('took from range from state');
-    } else {
-      console.log('took from range from default');
-    }
-    console.log(from + " ---- " + to);
-
-    this._udc({ from, to })
-      .then(resp => {
-        this.updateSegments(resp.segments);
-        this.updateData(resp.timeserie, undefined, true);
-      })
-      .catch(() => { /* set "error" message */ })
-  }
 
   protected addEvents(): void {
     this.initBrush();
@@ -126,98 +53,9 @@ export class HasticPod extends LinePod {
       .on('dblclick.zoom', this.zoomOut.bind(this));
   }
 
-  protected onBrushStart(): void {
-    if(this._sKeyIsDown) {
-      this._labelBrush = true;
-      this.svg.select('.selection')
-        .attr('fill', 'red');
-    } else if (this._aKeyIsDown) {
-      this._antiLabelBrush = true;
-      this.svg.select('.selection')
-        .attr('fill', 'blue');
-    } else if (this._dKeyIsDown) {
-      this._deleteBrush = true;
-      this.svg.select('.selection')
-        .attr('fill', 'darkgreen');
-    }
-
-    // TODO: move to state
-    this.isBrushing === true;
-    const selection = this.d3.event.selection;
-    if(selection !== null && selection.length > 0) {
-      this.brushStartSelection = this.d3.event.selection[0];
-    }
-    this.onMouseOut();
-  }
-
-  protected onBrushEnd(): void {
-    if(!this._labelBrush && !this._antiLabelBrush && !this._deleteBrush) {
-      super.onBrushEnd();
-    } else {
-      const extent = this.d3.event.selection;
-      this.isBrushing === false;
-      if(extent === undefined || extent === null || extent.length < 2) {
-        return;
-      }
-      this.chartContainer
-        .call(this.brush.move, null);
-
-      const startTimestamp = this.xScale.invert(extent[0]);
-      const endTimestamp = this.xScale.invert(extent[1]);
-
-      if(this._labelBrush) {
-        this.addSegment(startTimestamp, endTimestamp, SegmentType.LABEL);
-        this._labelBrush = false;
-      }
-      if(this._antiLabelBrush) {
-        this.addSegment(startTimestamp, endTimestamp, SegmentType.ANTI_LABEL);
-        this._antiLabelBrush = false;
-      }
-      if(this._deleteBrush) {
-        this.deleteSegment(startTimestamp, endTimestamp);
-        this._deleteBrush = false;
-      }
-    }
-  }
-
-  protected async addSegment(from: number, to: number, type: SegmentType): Promise<void> {
-    const id = this.getNewTempSegmentId();
-    from = Math.floor(from);
-    to = Math.ceil(to);
-
-    if (from > to) {
-      const t = from;
-      from = to;
-      to = t;
-    }
-
-    const segment = new Segment(id, from, to, type);
-    //const storedId =
-    await this._csc(segment);
-    this.fetchData();
-    // segment.id = storedId;
-
-    // this._segmentSet.addSegment(segment);
-    // this.renderSegment(segment);
-  }
-
-  protected async deleteSegment(from: number, to: number): Promise<void> {
-    from = Math.floor(from);
-    to = Math.ceil(to);
-
-    if (from > to) {
-      const t = from;
-      from = to;
-      to = t;
-    }
-
-    await this._dsc(from, to);
-    this.fetchData();
-
-  }
 
   protected renderSegments(): void {
-    const segments = this._segmentSet.getSegments();
+    const segments = this.segmentSet.getSegments();
     // TODO: this is a bad hack, don't know why
     if(this.metricContainer == null) {
       return;
@@ -254,27 +92,17 @@ export class HasticPod extends LinePod {
     }
   }
 
-  private async _updateRange(range: AxisRange[]) {
+  protected async updateRange(range: AxisRange[]) {
     // in assumption that range have been changed
     console.log('update range.....');
     console.log(range)
     this.fetchData();
   }
 
-  private _zoomOut({x, y}): void {
+  protected _zoomOut({x, y}): void {
     this.fetchData();
   }
 
-  protected updateSegments(segments: Segment[]): void {
-    this._segmentSet.clear();
-    this._segmentSet.setSegments(segments);
-  }
-
+  abstract fetchData();
 
-  // TODO: move to "controller"
-  private _tempIdCounted = -1;
-  public getNewTempSegmentId(): SegmentId {
-    this._tempIdCounted--;
-    return this._tempIdCounted.toString();
-  }
 }
diff --git a/client/src/components/pods/pattern_pod.ts b/client/src/components/pods/pattern_pod.ts
index ad29483..1ad93fe 100644
--- a/client/src/components/pods/pattern_pod.ts
+++ b/client/src/components/pods/pattern_pod.ts
@@ -1,6 +1,203 @@
 import { HasticPod } from './hastic_pod';
+import { TimeRange  } from '@/types';
 
+import { Segment, SegmentId, SegmentType } from "@/types/segment";
+import { LineTimeSerie } from '@chartwerk/line-pod';
+import { SegmentsSet } from '@/types/segment_set';
+
+
+export type UpdateDataCallback = (range: TimeRange) => Promise<{
+  timeserie: LineTimeSerie[],
+  segments: Segment[]
+}>;
+export type CreateSegmentCallback = (segment: Segment) => Promise<SegmentId>;
+export type DeleteSegmentCallback = (from: number, to: number) => Promise<number>;
+
+
+export class PatternPod extends HasticPod<UpdateDataCallback> {
+
+  private _udc: UpdateDataCallback;
+  private _csc: CreateSegmentCallback;
+  private _dsc: DeleteSegmentCallback;
+
+  private _aKeyIsDown: boolean;
+  private _sKeyIsDown: boolean;
+  private _dKeyIsDown: boolean;
+  private _labelBrush: boolean;
+  private _antiLabelBrush: boolean;
+  private _deleteBrush: boolean;
+
+  constructor(
+    el: HTMLElement,
+    udc: UpdateDataCallback,
+    csc: CreateSegmentCallback,
+    dsc: DeleteSegmentCallback,
+    segmentSet: SegmentsSet<Segment>
+  ) {
+    super(el, udc, segmentSet)
+
+    this._csc = csc;
+    this._dsc = dsc;
+
+    this._sKeyIsDown = false;
+    this._aKeyIsDown = false;
+    this._dKeyIsDown = false;
+
+    this._labelBrush = false;
+    this._antiLabelBrush = false;
+
+    window.addEventListener("keydown", e => {
+      if(e.code == "KeyA") {
+        this._aKeyIsDown = true;
+      }
+      if(e.code == "KeyS") {
+        this._sKeyIsDown = true;
+      }
+      if(e.code == 'KeyD') {
+        this._dKeyIsDown = true;
+      }
+    });
+    window.addEventListener("keyup", (e) => {
+      if(e.code == "KeyA") {
+        this._aKeyIsDown = false;
+      }
+      if(e.code == "KeyS") {
+        this._sKeyIsDown = false;
+      }
+      if(e.code == 'KeyD') {
+        this._dKeyIsDown = false;
+      }
+    });
+
+
+    this.fetchData();
+
+  }
+
+
+  public fetchData(): void {
+    let to = Math.floor(Date.now() / 1000);
+    let from = to - 50000; // -50000 seconds
+
+    if(!(this.state.xValueRange[0] == 0 && this.state.xValueRange[1] == 1)) {
+      [from, to] = this.state?.xValueRange;
+      console.log('took from range from state');
+    } else {
+      console.log('took from range from default');
+    }
+    console.log(from + " ---- " + to);
+
+    this.udc({ from, to })
+      .then(resp => {
+        this.updateSegments(resp.segments);
+        this.updateData(resp.timeserie, undefined, true);
+      })
+      .catch(() => { /* set "error" message */ })
+  }
+
+
+  protected onBrushStart(): void {
+    if(this._sKeyIsDown) {
+      this._labelBrush = true;
+      this.svg.select('.selection')
+        .attr('fill', 'red');
+    } else if (this._aKeyIsDown) {
+      this._antiLabelBrush = true;
+      this.svg.select('.selection')
+        .attr('fill', 'blue');
+    } else if (this._dKeyIsDown) {
+      this._deleteBrush = true;
+      this.svg.select('.selection')
+        .attr('fill', 'darkgreen');
+    }
+
+    // TODO: move to state
+    this.isBrushing === true;
+    const selection = this.d3.event.selection;
+    if(selection !== null && selection.length > 0) {
+      this.brushStartSelection = this.d3.event.selection[0];
+    }
+    this.onMouseOut();
+  }
+
+  protected onBrushEnd(): void {
+    if(!this._labelBrush && !this._antiLabelBrush && !this._deleteBrush) {
+      super.onBrushEnd();
+    } else {
+      const extent = this.d3.event.selection;
+      this.isBrushing === false;
+      if(extent === undefined || extent === null || extent.length < 2) {
+        return;
+      }
+      this.chartContainer
+        .call(this.brush.move, null);
+
+      const startTimestamp = this.xScale.invert(extent[0]);
+      const endTimestamp = this.xScale.invert(extent[1]);
+
+      if(this._labelBrush) {
+        this.addSegment(startTimestamp, endTimestamp, SegmentType.LABEL);
+        this._labelBrush = false;
+      }
+      if(this._antiLabelBrush) {
+        this.addSegment(startTimestamp, endTimestamp, SegmentType.ANTI_LABEL);
+        this._antiLabelBrush = false;
+      }
+      if(this._deleteBrush) {
+        this.deleteSegment(startTimestamp, endTimestamp);
+        this._deleteBrush = false;
+      }
+    }
+  }
+
+
+  protected async addSegment(from: number, to: number, type: SegmentType): Promise<void> {
+    const id = this.getNewTempSegmentId();
+    from = Math.floor(from);
+    to = Math.ceil(to);
+
+    if (from > to) {
+      const t = from;
+      from = to;
+      to = t;
+    }
+
+    const segment = new Segment(id, from, to, type);
+    //const storedId =
+    await this._csc(segment);
+    this.fetchData();
+    // segment.id = storedId;
+
+    // this._segmentSet.addSegment(segment);
+    // this.renderSegment(segment);
+  }
+
+  protected async deleteSegment(from: number, to: number): Promise<void> {
+    from = Math.floor(from);
+    to = Math.ceil(to);
+
+    if (from > to) {
+      const t = from;
+      from = to;
+      to = t;
+    }
+
+    await this._dsc(from, to);
+    this.fetchData();
+
+  }
+
+
+  protected updateSegments(segments: Segment[]): void {
+    this.segmentSet.clear();
+    this.segmentSet.setSegments(segments);
+  }
+
+  // TODO: move to "controller"
+  private _tempIdCounted = -1;
+  public getNewTempSegmentId(): SegmentId {
+    this._tempIdCounted--;
+    return this._tempIdCounted.toString();
+  }
 
-export class PatternPod extends HasticPod {
-  
 }
\ No newline at end of file