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Application-Web/front/views/Editor.tsx

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import {CSSProperties, Dispatch, SetStateAction, useCallback, useMemo, useRef, useState,} from "react"
import "../style/editor.css"
import TitleInput from "../components/TitleInput"
import PlainCourt from "../assets/court/full_court.svg?react"
import HalfCourt from "../assets/court/half_court.svg?react"
import {BallPiece} from "../components/editor/BallPiece"
import {Rack} from "../components/Rack"
import {PlayerPiece} from "../components/editor/PlayerPiece"
import {Tactic, TacticComponent, TacticContent} from "../model/tactic/Tactic"
import {fetchAPI} from "../Fetcher"
import SavingState, {SaveState, SaveStates,} from "../components/editor/SavingState"
import {BALL_TYPE} from "../model/tactic/CourtObjects"
import {CourtAction} from "./editor/CourtAction"
import {BasketCourt} from "../components/editor/BasketCourt"
import {overlaps} from "../geo/Box"
import {
dropBallOnComponent,
getComponentCollided,
getRackPlayers,
moveComponent,
placeBallAt,
placeObjectAt,
placePlayerAt,
removeBall, updateComponent,
} from "../editor/TacticContentDomains"
import {BallState, Player, PlayerInfo, PlayerPhantom, PlayerTeam,} from "../model/tactic/Player"
import {RackedCourtObject} from "../editor/RackedItems"
import CourtPlayer from "../components/editor/CourtPlayer"
import {getActionKind, placeArrow, repositionActionsRelatedTo,} from "../editor/ActionsDomains"
import ArrowAction from "../components/actions/ArrowAction"
import {middlePos, ratioWithinBase} from "../geo/Pos"
import {Action, ActionKind} from "../model/tactic/Action"
import BallAction from "../components/actions/BallAction"
import {getOrigin, removePlayer, truncatePlayerPath,} from "../editor/PlayerDomains"
import {CourtBall} from "../components/editor/CourtBall"
import {BASE} from "../Constants"
const ERROR_STYLE: CSSProperties = {
borderColor: "red",
}
const GUEST_MODE_CONTENT_STORAGE_KEY = "guest_mode_content"
const GUEST_MODE_TITLE_STORAGE_KEY = "guest_mode_title"
export interface EditorViewProps {
tactic: Tactic
onContentChange: (tactic: TacticContent) => Promise<SaveState>
onNameChange: (name: string) => Promise<boolean>
courtType: "PLAIN" | "HALF"
}
export interface EditorProps {
id: number
name: string
content: string
courtType: "PLAIN" | "HALF"
}
export default function Editor({id, name, courtType, content}: EditorProps) {
const isInGuestMode = id == -1
const storage_content = localStorage.getItem(GUEST_MODE_CONTENT_STORAGE_KEY)
const editorContent =
isInGuestMode && storage_content != null ? storage_content : content
const storage_name = localStorage.getItem(GUEST_MODE_TITLE_STORAGE_KEY)
const editorName =
isInGuestMode && storage_name != null ? storage_name : name
return (
<EditorView
tactic={{
name: editorName,
id,
content: JSON.parse(editorContent),
}}
onContentChange={async (content: TacticContent) => {
if (isInGuestMode) {
localStorage.setItem(
GUEST_MODE_CONTENT_STORAGE_KEY,
JSON.stringify(content),
)
return SaveStates.Guest
}
return fetchAPI(`tactic/${id}/save`, {content}).then((r) =>
r.ok ? SaveStates.Ok : SaveStates.Err,
)
}}
onNameChange={async (name: string) => {
if (isInGuestMode) {
localStorage.setItem(GUEST_MODE_TITLE_STORAGE_KEY, name)
return true //simulate that the name has been changed
}
return fetchAPI(`tactic/${id}/edit/name`, {name}).then(
(r) => r.ok,
)
}}
courtType={courtType}
/>
)
}
function EditorView({
tactic: {id, name, content: initialContent},
onContentChange,
onNameChange,
courtType,
}: EditorViewProps) {
const isInGuestMode = id == -1
const [titleStyle, setTitleStyle] = useState<CSSProperties>({})
const [content, setContent, saveState] = useContentState(
initialContent,
isInGuestMode ? SaveStates.Guest : SaveStates.Ok,
useMemo(
() =>
debounceAsync(
(content) =>
onContentChange(content).then((success) =>
success ? SaveStates.Ok : SaveStates.Err,
),
250,
),
[onContentChange],
),
)
const [allies, setAllies] = useState(
() => getRackPlayers(PlayerTeam.Allies, content.components),
)
const [opponents, setOpponents] = useState(
() => getRackPlayers(PlayerTeam.Opponents, content.components),
)
const [objects, setObjects] = useState<RackedCourtObject[]>(
() => isBallOnCourt(content) ? [] : [{key: "ball"}],
)
const [previewAction, setPreviewAction] = useState<Action | null>(null)
const courtRef = useRef<HTMLDivElement>(null)
const setActions = (action: SetStateAction<Action[]>) => {
setContent((c) => ({
...c,
actions: typeof action == "function" ? action(c.actions) : action,
}))
}
const setComponents = (action: SetStateAction<TacticComponent[]>) => {
setContent((c) => ({
...c,
components:
typeof action == "function" ? action(c.components) : action,
}))
}
const insertRackedPlayer = (player: Player) => {
let setter
switch (player.team) {
case PlayerTeam.Opponents:
setter = setOpponents
break
case PlayerTeam.Allies:
setter = setAllies
}
if (player.ballState == BallState.HOLDS) {
setObjects([{key: "ball"}])
}
setter((players) => [
...players,
{
team: player.team,
pos: player.role,
key: player.role,
},
])
}
const doMoveBall = (newBounds: DOMRect) => {
setContent((content) => {
const {newContent, removed} = placeBallAt(
newBounds,
courtBounds(),
content,
)
if (removed) {
setObjects((objects) => [...objects, {key: "ball"}])
}
return newContent
})
}
const courtBounds = () => courtRef.current!.getBoundingClientRect()
const renderPlayer = (component: Player | PlayerPhantom) => {
let info: PlayerInfo
let canPlaceArrows: boolean
const isPhantom = component.type == "phantom"
if (isPhantom) {
const origin = getOrigin(component, content.components)
const path = origin.path!
// phantoms can only place other arrows if they are the head of the path
canPlaceArrows = path.items.indexOf(component.id) == path.items.length - 1
if (canPlaceArrows) {
// and if their only action is to shoot the ball
// list the actions the phantoms does
const phantomArrows = content.actions.filter(c => c.fromId == component.id)
canPlaceArrows = phantomArrows.length == 0 || phantomArrows.findIndex(c => c.type != ActionKind.SHOOT) == -1
}
info = {
id: component.id,
team: origin.team,
role: origin.role,
bottomRatio: component.bottomRatio,
rightRatio: component.rightRatio,
ballState: component.ballState,
}
} else {
// a player
info = component
// can place arrows only if the
canPlaceArrows = component.path == null || content.actions.findIndex(p => p.fromId == component.id && p.type != ActionKind.SHOOT) == -1
}
return (
<CourtPlayer
key={component.id}
className={isPhantom ? "phantom" : "player"}
playerInfo={info}
onMoves={() =>
setActions((actions) =>
repositionActionsRelatedTo(info.id, courtBounds(), actions),
)
}
onPositionValidated={(newPos) => {
setContent((content) =>
moveComponent(
newPos,
component,
info,
courtBounds(),
content,
(content) => {
if (!isPhantom) insertRackedPlayer(component)
return removePlayer(component, content)
},
),
)
}}
onRemove={() => {
setContent((c) => removePlayer(component, c))
if (!isPhantom) insertRackedPlayer(component)
}}
courtRef={courtRef}
availableActions={(pieceRef) => [
canPlaceArrows && (
<ArrowAction
key={1}
onHeadMoved={(headPos) => {
const arrowHeadPos = middlePos(headPos)
const targetIdx = getComponentCollided(headPos, content.components)
setPreviewAction((action) => ({
...action!,
segments: [
{
next: ratioWithinBase(
arrowHeadPos,
courtBounds(),
),
},
],
type: getActionKind(targetIdx != -1, info.ballState),
}))
}}
onHeadPicked={(headPos) => {
(document.activeElement as HTMLElement).blur()
setPreviewAction({
type: getActionKind(false, info.ballState),
fromId: info.id,
toId: null,
moveFrom: ratioWithinBase(
middlePos(
pieceRef.getBoundingClientRect(),
),
courtBounds(),
),
segments: [
{
next: ratioWithinBase(
middlePos(headPos),
courtBounds(),
),
},
],
})
}}
onHeadDropped={(headRect) => {
setContent((content) => {
let {createdAction, newContent} = placeArrow(
component,
courtBounds(),
headRect,
content,
)
let originNewBallState = component.ballState
if (createdAction.type == ActionKind.SHOOT) {
const targetIdx = newContent.components.findIndex(c => c.id == createdAction.toId)
newContent = dropBallOnComponent(targetIdx, newContent)
originNewBallState = BallState.SHOOTED
}
newContent = updateComponent({
...(newContent.components.find(c => c.id == component.id)! as Player | PlayerPhantom),
ballState: originNewBallState
}, newContent)
return newContent
})
setPreviewAction(null)
}}
/>
),
info.ballState != BallState.NONE && (
<BallAction
key={2}
onDrop={doMoveBall}
/>
),
]}
/>
)
}
return (
<div id="main-div">
<div id="topbar-div">
<button onClick={() => (location.pathname = BASE + "/")}>
Home
</button>
<div id="topbar-left">
<SavingState state={saveState}/>
</div>
<div id="title-input-div">
<TitleInput
style={titleStyle}
default_value={name}
on_validated={(new_name) => {
onNameChange(new_name).then((success) => {
setTitleStyle(success ? {} : ERROR_STYLE)
})
}}
/>
</div>
<div id="topbar-right"/>
</div>
<div id="edit-div">
<div id="racks">
<Rack
id="allies-rack"
objects={allies}
onChange={setAllies}
canDetach={(div) =>
overlaps(courtBounds(), div.getBoundingClientRect())
}
onElementDetached={(r, e) =>
setComponents((components) => [
...components,
placePlayerAt(
r.getBoundingClientRect(),
courtBounds(),
e,
),
])
}
render={({team, key}) => (
<PlayerPiece
team={team}
text={key}
key={key}
hasBall={false}
/>
)}
/>
<Rack
id={"objects"}
objects={objects}
onChange={setObjects}
canDetach={(div) =>
overlaps(courtBounds(), div.getBoundingClientRect())
}
onElementDetached={(r, e) =>
setContent((content) =>
placeObjectAt(
r.getBoundingClientRect(),
courtBounds(),
e,
content,
),
)
}
render={renderCourtObject}
/>
<Rack
id="opponent-rack"
objects={opponents}
onChange={setOpponents}
canDetach={(div) =>
overlaps(courtBounds(), div.getBoundingClientRect())
}
onElementDetached={(r, e) =>
setComponents((components) => [
...components,
placePlayerAt(
r.getBoundingClientRect(),
courtBounds(),
e,
),
])
}
render={({team, key}) => (
<PlayerPiece
team={team}
text={key}
key={key}
hasBall={false}
/>
)}
/>
</div>
<div id="court-div">
<div id="court-div-bounds">
<BasketCourt
components={content.components}
actions={content.actions}
courtImage={<Court courtType={courtType}/>}
courtRef={courtRef}
previewAction={previewAction}
renderComponent={(component) => {
if (
component.type == "player" ||
component.type == "phantom"
) {
return renderPlayer(component)
}
if (component.type == BALL_TYPE) {
return (
<CourtBall
key="ball"
ball={component}
onPosValidated={doMoveBall}
onMoves={() =>
setActions((actions) =>
repositionActionsRelatedTo(
component.id,
courtBounds(),
actions,
),
)
}
onRemove={() => {
setContent((content) =>
removeBall(content),
)
setObjects(objects => [...objects, {key: "ball"}])
}}
/>
)
}
throw new Error(
"unknown tactic component " + component,
)
}}
renderAction={(action, i) => (
<CourtAction
key={i}
action={action}
courtRef={courtRef}
onActionDeleted={() => {
setContent((content) => {
content = {
...content,
actions:
content.actions.toSpliced(
i,
1,
),
}
if (action.toId == null)
return content
const target =
content.components.find(
(c) => action.toId == c.id,
)!
if (target.type == "phantom") {
const origin = getOrigin(
target,
content.components,
)
if (origin.id != action.fromId) {
return content
}
content = truncatePlayerPath(
origin,
target,
content,
)
}
return content
})
}}
onActionChanges={(a) =>
setContent((content) => ({
...content,
actions: content.actions.toSpliced(
i,
1,
a,
),
}))
}
/>
)}
/>
</div>
</div>
</div>
</div>
)
}
function isBallOnCourt(content: TacticContent) {
return (
content.components.findIndex(
(c) => (c.type == "player" && c.ballState == BallState.HOLDS) || c.type == BALL_TYPE,
) != -1
)
}
function renderCourtObject(courtObject: RackedCourtObject) {
if (courtObject.key == "ball") {
return <BallPiece/>
}
throw new Error("unknown racked court object " + courtObject.key)
}
function Court({courtType}: { courtType: string }) {
return (
<div id="court-image-div">
{courtType == "PLAIN" ? (
<PlainCourt id="court-image"/>
) : (
<HalfCourt id="court-image"/>
)}
</div>
)
}
function debounceAsync<A, B>(
f: (args: A) => Promise<B>,
delay = 1000,
): (args: A) => Promise<B> {
let task = 0
return (args: A) => {
clearTimeout(task)
return new Promise((resolve, reject) => {
task = setTimeout(() => f(args).then(resolve).catch(reject), delay)
})
}
}
function useContentState<S>(
initialContent: S,
initialSaveState: SaveState,
saveStateCallback: (s: S) => Promise<SaveState>,
): [S, Dispatch<SetStateAction<S>>, SaveState] {
const [content, setContent] = useState(initialContent)
const [savingState, setSavingState] = useState(initialSaveState)
const setContentSynced = useCallback(
(newState: SetStateAction<S>) => {
setContent((content) => {
const state =
typeof newState === "function"
? (newState as (state: S) => S)(content)
: newState
if (state !== content) {
setSavingState(SaveStates.Saving)
saveStateCallback(state)
.then(setSavingState)
.catch(() => setSavingState(SaveStates.Err))
}
return state
})
},
[saveStateCallback],
)
return [content, setContentSynced, savingState]
}