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lean4game/client/src/components/hints.tsx

118 lines
4.6 KiB
TypeScript

import { GameHint, InteractiveGoalsWithHints, ProofState } from "./infoview/rpc_api";
import * as React from 'react';
import Markdown from './markdown';
import { DeletedChatContext, ProofContext } from "./infoview/context";
import { lastStepHasErrors } from "./infoview/goals";
import { Button } from "./button";
/** Plug-in the variable names in a hint. We do this client-side to prepare
* for i18n in the future. i.e. one should be able translate the `rawText`
* and have the variables substituted just before displaying.
*/
function getHintText(hint: GameHint): string {
if (hint.rawText) {
// Replace the variable names used in the hint with the ones used by the player
// variable names are marked like `«{g}»` inside the text.
return hint.rawText.replace(/«\{(.*?)\}»/, ((_, v) =>
// `hint.varNames` contains tuples `[oldName, newName]`
(hint.varNames.find(x => x[0] == v))[1]))
} else {
// hints created in the frontend do not have a `rawText`
// TODO: `hint.text` could be removed in theory.
return hint.text
}
}
export function Hint({hint, step, selected, toggleSelection, lastLevel} : {hint: GameHint, step: number, selected: number, toggleSelection: any, lastLevel?: boolean}) {
return <div className={`message information step-${step}` + (step == selected ? ' selected' : '') + (lastLevel ? ' recent' : '')} onClick={toggleSelection}>
<Markdown>{getHintText(hint)}</Markdown>
</div>
}
export function HiddenHint({hint, step, selected, toggleSelection, lastLevel} : {hint: GameHint, step: number, selected: number, toggleSelection: any, lastLevel?: boolean}) {
return <div className={`message warning step-${step}` + (step == selected ? ' selected' : '') + (lastLevel ? ' recent' : '')} onClick={toggleSelection}>
<Markdown>{getHintText(hint)}</Markdown>
</div>
}
export function Hints({hints, showHidden, step, selected, toggleSelection, lastLevel} : {hints: GameHint[], showHidden: boolean, step: number, selected: number, toggleSelection: any, lastLevel?: boolean}) {
if (!hints) {return <></>}
const openHints = hints.filter(hint => !hint.hidden)
const hiddenHints = hints.filter(hint => hint.hidden)
// TODO: Should not use index as key.
return <>
{openHints.map((hint, j) => <Hint key={`hint-${step}-${j}`} hint={hint} step={step} selected={selected} toggleSelection={toggleSelection} lastLevel={lastLevel} />)}
{showHidden && hiddenHints.map((hint, j) => <HiddenHint key={`hidden-hint-${step}-${j}`} hint={hint} step={step} selected={selected} toggleSelection={toggleSelection} lastLevel={lastLevel} />)}
</>
}
export function DeletedHint({hint} : {hint: GameHint}) {
return <div className="message information deleted-hint">
<Markdown>{getHintText(hint)}</Markdown>
</div>
}
export function DeletedHints({hints} : {hints: GameHint[]}) {
const openHints = hints.filter(hint => !hint.hidden)
const hiddenHints = hints.filter(hint => hint.hidden)
// TODO: Should not use index as key.
return <>
{openHints.map((hint, i) => <DeletedHint key={`deleted-hint-${i}`} hint={hint} />)}
{hiddenHints.map((hint, i) => <DeletedHint key={`deleted-hidden-hint-${i}`} hint={hint}/>)}
</>
}
/** Filter hints to not show consequtive identical hints twice.
* Hidden hints are not filtered.
*/
export function filterHints(hints: GameHint[], prevHints: GameHint[]): GameHint[] {
if (!hints) {
return []}
else if (!prevHints) {
return hints }
else {
return hints.filter((hint) => hint.hidden ||
(prevHints.find(x => (x.text == hint.text && x.hidden == hint.hidden)) === undefined)
)
}
}
function hasHiddenHints(step: InteractiveGoalsWithHints): boolean {
return step?.goals[0]?.hints.some((hint) => hint.hidden)
}
export function MoreHelpButton({selected=null} : {selected?: number}) {
const {proof, setProof} = React.useContext(ProofContext)
const {deletedChat, setDeletedChat, showHelp, setShowHelp} = React.useContext(DeletedChatContext)
let k = (selected === null) ? (proof.steps.length - (lastStepHasErrors(proof) ? 2 : 1)) : selected
const activateHiddenHints = (ev) => {
// If the last step (`k`) has errors, we want the hidden hints from the
// second-to-last step to be affected
if (!(proof.steps.length)) {return}
// state must not be mutated, therefore we need to clone the set
let tmp = new Set(showHelp)
if (tmp.has(k)) {
tmp.delete(k)
} else {
tmp.add(k)
}
setShowHelp(tmp)
console.debug(`help: ${Array.from(tmp.values())}`)
}
if (hasHiddenHints(proof.steps[k]) && !showHelp.has(k)) {
return <Button to="" onClick={activateHiddenHints}>
Show more help!
</Button>
}
}