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        <h1><a href="..\..\index.html">All files</a> / <a href="index.html">src/components</a> SchedulerHistory.tsx</h1>
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">import React, { useContext, useEffect, useState } from 'react';
import styled from 'styled-components';
import { coursesContext } from '../contexts/CoursesProvider';
import { SchedulerEvent } from '../types';
import { Scheduler } from './Scheduler';
import { SchedulerHistoryNavigation } from './SchedulerHistoryNavigation';
&nbsp;
const Wrapper = styled.div`
  display: flex;
  flex-direction: column;
  width: 100%;
`;
&nbsp;
interface SchedulerHistoryProps {
  schedulerHistoryEvents: Array&lt;SchedulerEvent&gt;;
}
&nbsp;
export const SchedulerHistory = <span class="fstat-no" title="function not covered" >({</span>schedulerHistoryEvents}:SchedulerHistoryProps) =&gt; {
  const { timetableHistory, setHistoryBasketFromHistoryGroups } = <span class="cstat-no" title="statement not covered" >useContext(coursesContext)!;</span>
  const [currentTimetable, setCurrentTimetable] = <span class="cstat-no" title="statement not covered" >useState(timetableHistory.length===0 ? 0 : timetableHistory.length - 1);</span>
  let commisionDate = <span class="cstat-no" title="statement not covered" >timetableHistory[currentTimetable]?.commisionDate;</span>
&nbsp;
  const SubstractCurrentTimetable = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >(v</span>alue: number) =&gt; {</span>
<span class="cstat-no" title="statement not covered" >    if (currentTimetable &gt; 0) {</span>
<span class="cstat-no" title="statement not covered" >      setCurrentTimetable(<span class="fstat-no" title="function not covered" >(c</span>urrentTimetable) =&gt; <span class="cstat-no" title="statement not covered" >currentTimetable + value)</span>;</span>
    }
  };
&nbsp;
  const AddCurrentTimetable = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >(v</span>alue: number) =&gt; {</span>
<span class="cstat-no" title="statement not covered" >    if (currentTimetable &lt; timetableHistory.length - 1) {</span>
<span class="cstat-no" title="statement not covered" >      setCurrentTimetable(<span class="fstat-no" title="function not covered" >(c</span>urrentTimetable) =&gt; <span class="cstat-no" title="statement not covered" >currentTimetable + value)</span>;</span>
    }
  };
&nbsp;
<span class="cstat-no" title="statement not covered" >  useEffect(<span class="fstat-no" title="function not covered" >()</span> =&gt; {</span>
    const timetable = <span class="cstat-no" title="statement not covered" >timetableHistory[currentTimetable];</span>
<span class="cstat-no" title="statement not covered" >    if (timetable) {</span>
      const { groups } = <span class="cstat-no" title="statement not covered" >timetable;</span>
<span class="cstat-no" title="statement not covered" >      setHistoryBasketFromHistoryGroups(groups);</span>
    }
    else{
<span class="cstat-no" title="statement not covered" >      setHistoryBasketFromHistoryGroups([]);</span>
    }
  }, [currentTimetable,timetableHistory]);
&nbsp;
<span class="cstat-no" title="statement not covered" >  return (</span>
    &lt;Wrapper&gt;
      {timetableHistory.length &gt; 0 &amp;&amp; (
        &lt;SchedulerHistoryNavigation commisionDate={commisionDate} SubstractCurrentTimetable={SubstractCurrentTimetable} AddCurrentTimetable={AddCurrentTimetable} /&gt;
      )}
      &lt;Scheduler schedulerEvents={schedulerHistoryEvents}/&gt;
    &lt;/Wrapper&gt;
  );
};
&nbsp;</pre></td></tr></table></pre>

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                at Sun Jan 17 2021 18:43:29 GMT+0100 (GMT+01:00)
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