statebuddy/src/App/RTHistory.tsx

86 lines
3 KiB
TypeScript

import { Dispatch, memo, Ref, SetStateAction, useCallback } from "react";
import { Statechart, stateDescription } from "../statecharts/abstract_syntax";
import { BigStep, Mode, RaisedEvent, RT_Event } from "../statecharts/runtime_types";
import { formatTime } from "../util/util";
import { TimeMode } from "../statecharts/time";
import { TraceItem, TraceState } from "./App";
import { Environment } from "@/statecharts/environment";
type RTHistoryProps = {
trace: TraceState|null,
setTrace: Dispatch<SetStateAction<TraceState|null>>;
ast: Statechart,
setTime: Dispatch<SetStateAction<TimeMode>>,
}
export function RTHistory({trace, setTrace, ast, setTime}: RTHistoryProps) {
const onMouseDown = useCallback((idx: number, timestamp: number) => {
setTrace(trace => trace && {
...trace,
idx,
});
setTime({kind: "paused", simtime: timestamp});
}, [setTrace, setTime]);
if (trace === null) {
return <></>;
}
return <div>
{trace.trace.map((item, i) => <RTHistoryItem ast={ast} idx={i} item={item} prevItem={trace.trace[i-1]} active={i === trace.idx} onMouseDown={onMouseDown}/>)}
</div>;
}
export const RTHistoryItem = memo(function RTHistoryItem({ast, idx, item, prevItem, active, onMouseDown}: {idx: number, ast: Statechart, item: TraceItem, prevItem?: TraceItem, active: boolean, onMouseDown: (idx: number, timestamp: number) => void}) {
if (item.kind === "bigstep") {
// @ts-ignore
const newStates = item.mode.difference(prevItem?.mode || new Set());
return <div
className={"runtimeState" + (active ? " active" : "")}
onMouseDown={useCallback(() => onMouseDown(idx, item.simtime), [idx, item.simtime])}>
<div>
{formatTime(item.simtime)}
&emsp;
<div className="inputEvent">{item.inputEvent || "<init>"}</div>
</div>
<ShowMode mode={newStates} statechart={ast}/>
<ShowEnvironment environment={item.environment}/>
{item.outputEvents.length>0 && <>^
{item.outputEvents.map((e:RaisedEvent) => <span className="outputEvent">{e.name}</span>)}
</>}
</div>;
}
else {
return <div className="runtimeState runtimeError">
<div>
{formatTime(item.simtime)}
&emsp;
<div className="inputEvent">{item.inputEvent}</div>
</div>
<div>
{item.error.message}
</div>
</div>;
}
});
function ShowEnvironment(props: {environment: Environment}) {
return <div>{
[...props.environment.entries()]
.filter(([variable]) => !variable.startsWith('_'))
.map(([variable,value]) => `${variable}: ${value}`).join(', ')
}</div>;
}
function ShowMode(props: {mode: Mode, statechart: Statechart}) {
const activeLeafs = getActiveLeafs(props.mode, props.statechart);
return <div>{[...activeLeafs].map(uid =>
<span className="activeState">{stateDescription(props.statechart.uid2State.get(uid)!)}</span>)}</div>;
}
function getActiveLeafs(mode: Mode, sc: Statechart) {
return new Set([...mode].filter(uid =>
// @ts-ignore
sc.uid2State.get(uid)?.children?.length === 0
));
}