statebuddy/src/App/App.tsx

334 lines
11 KiB
TypeScript

import { createElement, Dispatch, ReactElement, SetStateAction, useEffect, useRef, useState } from "react";
import { emptyStatechart, Statechart } from "../statecharts/abstract_syntax";
import { handleInputEvent, initialize } from "../statecharts/interpreter";
import { BigStep, BigStepOutput } from "../statecharts/runtime_types";
import { InsertMode, VisualEditor, VisualEditorState } from "../VisualEditor/VisualEditor";
import { getSimTime, getWallClkDelay, TimeMode } from "../statecharts/time";
import "../index.css";
import "./App.css";
import Stack from "@mui/material/Stack";
import Box from "@mui/material/Box";
import { TopPanel } from "./TopPanel";
import { RTHistory } from "./RTHistory";
import { ShowAST, ShowInputEvents, ShowInternalEvents, ShowOutputEvents } from "./ShowAST";
import { TraceableError } from "../statecharts/parser";
import { getKeyHandler } from "./shortcut_handler";
import { BottomPanel } from "./BottomPanel";
import { emptyState } from "@/statecharts/concrete_syntax";
import { PersistentDetails } from "./PersistentDetails";
import { DigitalWatch, DigitalWatchPlant } from "@/Plant/DigitalWatch/DigitalWatch";
import { DummyPlant } from "@/Plant/Dummy/Dummy";
import { Plant } from "@/Plant/Plant";
import { usePersistentState } from "@/util/persistent_state";
type EditHistory = {
current: VisualEditorState,
history: VisualEditorState[],
future: VisualEditorState[],
}
const plants: [string, Plant<any>][] = [
["dummy", DummyPlant],
["digital watch", DigitalWatchPlant],
]
export function App() {
const [mode, setMode] = useState<InsertMode>("and");
const [historyState, setHistoryState] = useState<EditHistory>({current: emptyState, history: [], future: []});
const [ast, setAST] = useState<Statechart>(emptyStatechart);
const [errors, setErrors] = useState<TraceableError[]>([]);
const [rt, setRT] = useState<BigStep[]>([]);
const [rtIdx, setRTIdx] = useState<number|undefined>();
const [time, setTime] = useState<TimeMode>({kind: "paused", simtime: 0});
const [modal, setModal] = useState<ReactElement|null>(null);
const [plantName, setPlantName] = usePersistentState("plant", "dummy");
const plant = plants.find(([pn, p]) => pn === plantName)![1];
const editorState = historyState.current;
const setEditorState = (cb: (value: VisualEditorState) => VisualEditorState) => {
setHistoryState(historyState => ({...historyState, current: cb(historyState.current)}));
}
const refRightSideBar = useRef<HTMLDivElement>(null);
function makeCheckPoint() {
setHistoryState(historyState => ({
...historyState,
history: [...historyState.history, historyState.current],
future: [],
}));
}
function onUndo() {
setHistoryState(historyState => {
if (historyState.history.length === 0) {
return historyState; // no change
}
return {
current: historyState.history.at(-1)!,
history: historyState.history.slice(0,-1),
future: [...historyState.future, historyState.current],
}
})
}
function onRedo() {
setHistoryState(historyState => {
if (historyState.future.length === 0) {
return historyState; // no change
}
return {
current: historyState.future.at(-1)!,
history: [...historyState.history, historyState.current],
future: historyState.future.slice(0,-1),
}
});
}
function onInit() {
const config = initialize(ast);
setRT([{inputEvent: null, simtime: 0, ...config}]);
setRTIdx(0);
setTime({kind: "paused", simtime: 0});
scrollDownSidebar();
}
function onClear() {
setRT([]);
setRTIdx(undefined);
setTime({kind: "paused", simtime: 0});
}
function onRaise(inputEvent: string, param: any) {
if (rt.length>0 && rtIdx!==undefined && ast.inputEvents.some(e => e.event === inputEvent)) {
const simtime = getSimTime(time, Math.round(performance.now()));
const nextConfig = handleInputEvent(simtime, {kind: "input", name: inputEvent, param}, ast, rt[rtIdx]!);
appendNewConfig(inputEvent, simtime, nextConfig);
}
}
function appendNewConfig(inputEvent: string, simtime: number, config: BigStepOutput) {
setRT([...rt.slice(0, rtIdx!+1), {inputEvent, simtime, ...config}]);
setRTIdx(rtIdx!+1);
// console.log('new config:', config);
scrollDownSidebar();
}
function onBack() {
setTime(() => {
if (rtIdx !== undefined) {
if (rtIdx > 0)
return {
kind: "paused",
simtime: rt[rtIdx-1].simtime,
}
}
return { kind: "paused", simtime: 0 };
});
setRTIdx(rtIdx => {
if (rtIdx !== undefined) {
if (rtIdx > 0)
return rtIdx - 1;
else
return 0;
}
else return undefined;
})
}
function scrollDownSidebar() {
if (refRightSideBar.current) {
const el = refRightSideBar.current;
// hack: we want to scroll to the new element, but we have to wait until it is rendered...
setTimeout(() => {
el.scrollIntoView({block: "end", behavior: "smooth"});
}, 50);
}
}
useEffect(() => {
console.log("Welcome to StateBuddy!");
() => {
console.log("Goodbye!");
}
}, []);
useEffect(() => {
let timeout: NodeJS.Timeout | undefined;
if (rtIdx !== undefined) {
const currentRt = rt[rtIdx]!;
const timers = currentRt.environment.get("_timers") || [];
if (timers.length > 0) {
const [nextInterrupt, timeElapsedEvent] = timers[0];
const raiseTimeEvent = () => {
const nextConfig = handleInputEvent(nextInterrupt, timeElapsedEvent, ast, currentRt);
appendNewConfig('<timer>', nextInterrupt, nextConfig);
}
if (time.kind === "realtime") {
const wallclkDelay = getWallClkDelay(time, nextInterrupt, Math.round(performance.now()));
// console.log('scheduling timeout after', wallclkDelay);
timeout = setTimeout(raiseTimeEvent, wallclkDelay);
}
else if (time.kind === "paused") {
if (nextInterrupt <= time.simtime) {
raiseTimeEvent();
}
}
}
}
return () => {
if (timeout) clearTimeout(timeout);
}
}, [time, rtIdx]);
useEffect(() => {
const onKeyDown = getKeyHandler(setMode);
window.addEventListener("keydown", onKeyDown);
return () => {
window.removeEventListener("keydown", onKeyDown);
};
}, []);
// const highlightActive = (rtIdx !== undefined) && new Set([...rt[rtIdx].mode].filter(uid => {
// const state = ast.uid2State.get(uid);
// return state && state.parent?.kind !== "and";
// })) || new Set();
const highlightActive: Set<string> = (rtIdx === undefined) ? new Set() : rt[rtIdx].mode;
const highlightTransitions = (rtIdx === undefined) ? [] : rt[rtIdx].firedTransitions;
const plantStates = [];
let ps = plant.initial(e => {
onRaise(e.name, e.param);
});
for (let i=0; i<rt.length; i++) {
const r = rt[i];
for (const o of r.outputEvents) {
ps = plant.reducer(o, ps);
}
plantStates.push(ps);
}
return <>
{/* Modal dialog */}
{modal && <div
className="modalOuter"
onMouseDown={() => setModal(null)}>
<div className="modalInner">
<span onMouseDown={e => e.stopPropagation()}>
{modal}
</span>
</div>
</div>}
<Stack sx={{height:'100%'}}>
<Stack direction="row" sx={{flexGrow:1, overflow: "auto"}}>
{/* Left: top bar and main editor */}
<Box sx={{flexGrow:1, overflow: "auto"}}>
<Stack sx={{height:'100%'}}>
{/* Top bar */}
<Box
className="shadowBelow"
sx={{
display: "flex",
borderBottom: 1,
borderColor: "divider",
alignItems: 'center',
flex: '0 0 content',
}}
>
<TopPanel
rt={rtIdx === undefined ? undefined : rt[rtIdx]}
{...{rtIdx, ast, time, setTime, onUndo, onRedo, onInit, onClear, onRaise, onBack, mode, setMode, setModal}}
/>
</Box>
{/* Below the top bar: Editor */}
<Box sx={{flexGrow:1, overflow: "auto"}}>
<VisualEditor {...{state: editorState, setState: setEditorState, ast, setAST, rt: rt.at(rtIdx!), setRT, errors, setErrors, mode, highlightActive, highlightTransitions, setModal, makeCheckPoint}}/>
</Box>
</Stack>
</Box>
{/* Right: sidebar */}
<Box sx={{
borderLeft: 1,
borderColor: "divider",
flex: '0 0 content',
overflowY: "auto",
overflowX: "visible",
maxWidth: 'min(300px, 30vw)',
}}>
<Stack sx={{height:'100%'}}>
<Box
className="shadowBelow"
sx={{flex: '0 0 content', backgroundColor: ''}}
>
<PersistentDetails localStorageKey="showStateTree" initiallyOpen={true}>
<summary>state tree</summary>
<ul>
<ShowAST {...{...ast, rt: rt.at(rtIdx!), highlightActive}}/>
</ul>
</PersistentDetails>
<PersistentDetails localStorageKey="showInputEvents" initiallyOpen={true}>
<summary>input events</summary>
<ShowInputEvents inputEvents={ast.inputEvents} onRaise={onRaise} disabled={rtIdx===undefined}/>
</PersistentDetails>
<PersistentDetails localStorageKey="showInternalEvents" initiallyOpen={true}>
<summary>internal events</summary>
<ShowInternalEvents internalEvents={ast.internalEvents}/>
</PersistentDetails>
<PersistentDetails localStorageKey="showOutputEvents" initiallyOpen={true}>
<summary>output events</summary>
<ShowOutputEvents outputEvents={ast.outputEvents}/>
</PersistentDetails>
</Box>
<Box sx={{
flexGrow:1,
overflow:'auto',
minHeight: 400,
// minHeight: '75%', // <-- allows us to always scroll down the sidebar far enough such that the execution history is enough in view
}}>
<Box sx={{ height: '100%'}}>
<div ref={refRightSideBar}>
<RTHistory {...{ast, rt, rtIdx, setTime, setRTIdx, refRightSideBar}}/>
</div>
</Box>
</Box>
<Box sx={{flex: '0 0 content'}}>
<PersistentDetails localStorageKey="showPlant" initiallyOpen={true}>
<summary>plant</summary>
<select
value={plantName}
onChange={e => setPlantName(() => e.target.value)}>
{plants.map(([plantName, p]) =>
<option>{plantName}</option>
)}
</select>
{rtIdx!==undefined && <plant.render {...plantStates[rtIdx]}/>}
{/* <DigitalWatch alarm={true} light={true} h={12} m={30} s={33}/> */}
</PersistentDetails>
</Box>
</Stack>
</Box>
</Stack>
{/* Bottom panel */}
<Box sx={{flex: '0 0 content'}}>
<BottomPanel {...{errors}}/>
</Box>
</Stack>
</>;
}
export default App;