Files
snort/packages/app/src/Element/Thread.tsx
2023-09-14 18:45:29 +00:00

331 lines
9.7 KiB
TypeScript

import "./Thread.css";
import { useMemo, useState, ReactNode, useContext } from "react";
import { useIntl } from "react-intl";
import { useNavigate, Link, useParams } from "react-router-dom";
import { TaggedNostrEvent, u256, NostrPrefix, EventExt, parseNostrLink } from "@snort/system";
import { eventLink, getReactions, getAllReactions } from "SnortUtils";
import BackButton from "Element/BackButton";
import Note from "Element/Note";
import NoteGhost from "Element/NoteGhost";
import Collapsed from "Element/Collapsed";
import { ThreadContext, ThreadContextWrapper } from "Hooks/useThreadContext";
import messages from "./messages";
interface DividerProps {
variant?: "regular" | "small";
}
const Divider = ({ variant = "regular" }: DividerProps) => {
const className = variant === "small" ? "divider divider-small" : "divider";
return (
<div className="divider-container">
<div className={className}></div>
</div>
);
};
interface SubthreadProps {
isLastSubthread?: boolean;
active: u256;
notes: readonly TaggedNostrEvent[];
related: readonly TaggedNostrEvent[];
chains: Map<u256, Array<TaggedNostrEvent>>;
onNavigate: (e: TaggedNostrEvent) => void;
}
const Subthread = ({ active, notes, related, chains, onNavigate }: SubthreadProps) => {
const renderSubthread = (a: TaggedNostrEvent, idx: number) => {
const isLastSubthread = idx === notes.length - 1;
const replies = getReplies(a.id, chains);
return (
<>
<div className={`subthread-container ${replies.length > 0 ? "subthread-multi" : ""}`}>
<Divider />
<Note
highlight={active === a.id}
className={`thread-note ${isLastSubthread && replies.length === 0 ? "is-last-note" : ""}`}
data={a}
key={a.id}
related={related}
onClick={onNavigate}
/>
<div className="line-container"></div>
</div>
{replies.length > 0 && (
<TierTwo
active={active}
isLastSubthread={isLastSubthread}
notes={replies}
related={related}
chains={chains}
onNavigate={onNavigate}
/>
)}
</>
);
};
return <div className="subthread">{notes.map(renderSubthread)}</div>;
};
interface ThreadNoteProps extends Omit<SubthreadProps, "notes"> {
note: TaggedNostrEvent;
isLast: boolean;
}
const ThreadNote = ({ active, note, isLast, isLastSubthread, related, chains, onNavigate }: ThreadNoteProps) => {
const { formatMessage } = useIntl();
const replies = getReplies(note.id, chains);
const activeInReplies = replies.map(r => r.id).includes(active);
const [collapsed, setCollapsed] = useState(!activeInReplies);
const hasMultipleNotes = replies.length > 1;
const isLastVisibleNote = isLastSubthread && isLast && !hasMultipleNotes;
const className = `subthread-container ${isLast && collapsed ? "subthread-last" : "subthread-multi subthread-mid"}`;
return (
<>
<div className={className}>
<Divider variant="small" />
<Note
highlight={active === note.id}
className={`thread-note ${isLastVisibleNote ? "is-last-note" : ""}`}
data={note}
key={note.id}
related={related}
onClick={onNavigate}
/>
<div className="line-container"></div>
</div>
{replies.length > 0 && (
<Collapsed text={formatMessage(messages.ShowReplies)} collapsed={collapsed} setCollapsed={setCollapsed}>
<TierThree
active={active}
isLastSubthread={isLastSubthread}
notes={replies}
related={related}
chains={chains}
onNavigate={onNavigate}
/>
</Collapsed>
)}
</>
);
};
const TierTwo = ({ active, isLastSubthread, notes, related, chains, onNavigate }: SubthreadProps) => {
const [first, ...rest] = notes;
return (
<>
<ThreadNote
active={active}
onNavigate={onNavigate}
note={first}
chains={chains}
related={related}
isLastSubthread={isLastSubthread}
isLast={rest.length === 0}
/>
{rest.map((r: TaggedNostrEvent, idx: number) => {
const lastReply = idx === rest.length - 1;
return (
<ThreadNote
active={active}
onNavigate={onNavigate}
note={r}
chains={chains}
related={related}
isLastSubthread={isLastSubthread}
isLast={lastReply}
/>
);
})}
</>
);
};
const TierThree = ({ active, isLastSubthread, notes, related, chains, onNavigate }: SubthreadProps) => {
const [first, ...rest] = notes;
const replies = getReplies(first.id, chains);
const hasMultipleNotes = rest.length > 0 || replies.length > 0;
const isLast = replies.length === 0 && rest.length === 0;
return (
<>
<div
className={`subthread-container ${hasMultipleNotes ? "subthread-multi" : ""} ${
isLast ? "subthread-last" : "subthread-mid"
}`}>
<Divider variant="small" />
<Note
highlight={active === first.id}
className={`thread-note ${isLastSubthread && isLast ? "is-last-note" : ""}`}
data={first}
key={first.id}
related={related}
/>
<div className="line-container"></div>
</div>
{replies.length > 0 && (
<TierThree
active={active}
isLastSubthread={isLastSubthread}
notes={replies}
related={related}
chains={chains}
onNavigate={onNavigate}
/>
)}
{rest.map((r: TaggedNostrEvent, idx: number) => {
const lastReply = idx === rest.length - 1;
const lastNote = isLastSubthread && lastReply;
return (
<div
key={r.id}
className={`subthread-container ${lastReply ? "" : "subthread-multi"} ${
lastReply ? "subthread-last" : "subthread-mid"
}`}>
<Divider variant="small" />
<Note
className={`thread-note ${lastNote ? "is-last-note" : ""}`}
highlight={active === r.id}
data={r}
key={r.id}
related={related}
onClick={onNavigate}
/>
<div className="line-container"></div>
</div>
);
})}
</>
);
};
export function ThreadRoute() {
const params = useParams();
const link = parseNostrLink(params.id ?? "", NostrPrefix.Note);
return (
<ThreadContextWrapper link={link}>
<Thread />
</ThreadContextWrapper>
);
}
export function Thread() {
const thread = useContext(ThreadContext);
const navigate = useNavigate();
const isSingleNote = thread.chains?.size === 1 && [thread.chains.values].every(v => v.length === 0);
const { formatMessage } = useIntl();
function navigateThread(e: TaggedNostrEvent) {
thread.setCurrent(e.id);
//const link = encodeTLV(e.id, NostrPrefix.Event, e.relays);
}
const parent = useMemo(() => {
if (thread.root) {
const currentThread = EventExt.extractThread(thread.root);
return (
currentThread?.replyTo?.value ??
currentThread?.root?.value ??
(currentThread?.root?.key === "a" && currentThread.root?.value)
);
}
}, [thread.root]);
const brokenChains = Array.from(thread.chains?.keys()).filter(a => !thread.data?.some(b => b.id === a));
function renderRoot(note: TaggedNostrEvent) {
const className = `thread-root${isSingleNote ? " thread-root-single" : ""}`;
if (note) {
return (
<Note
className={className}
key={note.id}
data={note}
related={getReactions(thread.data, note.id)}
options={{ showReactionsLink: true }}
onClick={navigateThread}
/>
);
} else {
return <NoteGhost className={className}>Loading thread root.. ({thread.data?.length} notes loaded)</NoteGhost>;
}
}
function renderChain(from: u256): ReactNode {
if (!from || thread.chains.size === 0) {
return;
}
const replies = thread.chains.get(from);
if (replies && thread.current) {
return (
<Subthread
active={thread.current}
notes={replies}
related={getAllReactions(
thread.data,
replies.map(a => a.id),
)}
chains={thread.chains}
onNavigate={navigateThread}
/>
);
}
}
function goBack() {
if (parent) {
thread.setCurrent(parent);
} else {
navigate(-1);
}
}
const parentText = formatMessage({
defaultMessage: "Parent",
description: "Link to parent note in thread",
});
const backText = formatMessage({
defaultMessage: "Back",
description: "Navigate back button on threads view",
});
return (
<>
<div className="main-content p">
<BackButton onClick={goBack} text={parent ? parentText : backText} />
</div>
<div className="main-content">
{thread.root && renderRoot(thread.root)}
{thread.root && renderChain(thread.root.id)}
{brokenChains.length > 0 && <h3>Other replies</h3>}
{brokenChains.map(a => {
return (
<div className="mb10">
<NoteGhost className={`thread-note thread-root ghost-root`} key={a}>
Missing event <Link to={eventLink(a)}>{a.substring(0, 8)}</Link>
</NoteGhost>
{renderChain(a)}
</div>
);
})}
</div>
</>
);
}
function getReplies(from: u256, chains?: Map<u256, Array<TaggedNostrEvent>>): Array<TaggedNostrEvent> {
if (!from || !chains) {
return [];
}
const replies = chains.get(from);
return replies ? replies : [];
}