246 lines
9.5 KiB
TypeScript
246 lines
9.5 KiB
TypeScript
"use client";
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/**
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* Send the selected passage to someone, from the reading toolbar.
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*
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* Two ways in, because they answer different questions:
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*
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* Frequent chats — people you already talk to. A grid of avatars, because
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* you recognise these faces and want the shortest possible path.
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* Friends — people you follow or who follow you but have never messaged.
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* Rows with an explicit button, because starting a conversation is a bigger
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* step than continuing one and shouldn't be a mis-tap away.
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*
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* Anyone with an existing thread is removed from Friends, so nobody appears
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* twice and the second list is genuinely "people you haven't written to".
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*/
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import { useEffect, useState } from "react";
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import { Check, Loader2, Send } from "lucide-react";
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import { toast } from "sonner";
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import { useAuth } from "@/components/auth/auth-provider";
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import { UserAvatar } from "@/components/ui/user-avatar";
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import { Button } from "@/components/ui/button";
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import { ResponsiveDialog } from "@/components/chat/responsive-dialog";
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import { chat, type ChatPeer, type QuotePayload } from "@/lib/chat";
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import { relationships, type UserSummary } from "@/lib/social";
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/** How many existing threads to offer before it stops being "frequent". */
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const FREQUENT_LIMIT = 9;
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/** Friends fetched from each side of the follow graph. */
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const FRIENDS_PER_SIDE = 20;
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type Frequent = { conversationId: string; peer: ChatPeer };
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/** Per-person send state, keyed by handle. */
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type SendState = "idle" | "sending" | "sent";
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export function ShareToChatDialog({
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body = "",
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quote,
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entity,
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onClose,
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}: {
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/** Plain message text. Empty when sending a quote on its own. */
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body?: string;
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/** A passage from the library, sent as a tappable quotation. */
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quote?: QuotePayload;
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/** A post, sent as a card. Only the reference travels — the BFF resolves
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* the contents and re-checks visibility for each viewer. */
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entity?: { type: "post"; id: string };
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onClose: () => void;
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}) {
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const { user } = useAuth();
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const [frequent, setFrequent] = useState<Frequent[]>([]);
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const [friends, setFriends] = useState<UserSummary[]>([]);
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const [loaded, setLoaded] = useState(false);
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// Derived rather than stored: with no session there is nothing to fetch, so
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// "loading" is false immediately instead of needing an effect to say so.
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const loading = !!user && !loaded;
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const [states, setStates] = useState<Record<string, SendState>>({});
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useEffect(() => {
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// The toolbar gates this behind requireAuth; with no session there is
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// nothing to fetch and `loading` is already false.
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if (!user) return;
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let cancelled = false;
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(async () => {
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// Existing threads first: they populate the grid AND tell us who to drop
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// from Friends, so both lists come out of one pass.
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const [inbox, followers, following] = await Promise.all([
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chat.inbox("chats").catch(() => []),
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relationships
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.followers(user.handle, { limit: FRIENDS_PER_SIDE })
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.catch(() => ({ users: [] as UserSummary[] })),
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relationships
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.following(user.handle, { limit: FRIENDS_PER_SIDE })
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.catch(() => ({ users: [] as UserSummary[] })),
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]);
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if (cancelled) return;
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// The inbox arrives newest-first, so "frequent" is really "most recent"
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// — a reasonable stand-in until there's a message-count to rank by.
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const dms: Frequent[] = inbox
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.filter((c) => c.kind === "dm" && c.peer)
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.slice(0, FREQUENT_LIMIT)
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.map((c) => ({ conversationId: c.id, peer: c.peer as ChatPeer }));
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const talkingTo = new Set(dms.map((d) => d.peer.handle));
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const seen = new Set<string>();
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const rest = [...following.users, ...followers.users].filter((u) => {
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// Following before followers, so mutuals show up under the side you
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// chose. Self can appear in neither.
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if (u.handle === user.handle || talkingTo.has(u.handle)) return false;
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if (seen.has(u.handle)) return false;
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seen.add(u.handle);
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return true;
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});
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setFrequent(dms);
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setFriends(rest);
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setLoaded(true);
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})();
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return () => {
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cancelled = true;
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};
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}, [user]);
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const mark = (handle: string, state: SendState) =>
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setStates((prev) => ({ ...prev, [handle]: state }));
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/** Sends into an existing thread, or opens one first. */
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const sendTo = async (handle: string, conversationId?: string) => {
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if (states[handle] === "sending" || states[handle] === "sent") return;
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mark(handle, "sending");
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try {
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const id = conversationId ?? (await chat.openDM(handle)).id;
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await chat.send(id, body, { quote, entity });
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mark(handle, "sent");
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} catch {
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mark(handle, "idle");
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toast.error("Could not send that message");
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}
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};
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const sentCount = Object.values(states).filter((s) => s === "sent").length;
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return (
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<ResponsiveDialog
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title="Send to a chat"
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description="Share this passage in a conversation."
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onClose={onClose}
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footer={
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<Button variant="outline" className="w-full" onClick={onClose}>
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{sentCount > 0 ? "Done" : "Cancel"}
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</Button>
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}
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>
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{loading ? (
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<p className="p-4 text-sm text-muted-foreground">Loading…</p>
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) : frequent.length === 0 && friends.length === 0 ? (
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<p className="p-4 text-sm text-muted-foreground">
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No one to send to yet. Follow someone to start a conversation.
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</p>
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) : (
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<>
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{frequent.length > 0 && (
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<section className="p-4">
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<h3 className="mb-3 text-xs font-medium uppercase tracking-wide text-muted-foreground">
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Frequent chats
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</h3>
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<ul className="grid grid-cols-3 gap-3">
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{frequent.map(({ conversationId, peer }) => {
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const state = states[peer.handle] ?? "idle";
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return (
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<li key={peer.handle}>
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<button
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type="button"
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onClick={() => sendTo(peer.handle, conversationId)}
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disabled={state !== "idle"}
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className="flex w-full flex-col items-center gap-1.5 rounded-lg p-2 text-center hover:bg-muted/60 disabled:opacity-70"
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>
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<span className="relative">
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<UserAvatar
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src={peer.avatar_url}
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name={peer.name}
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className="size-14"
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/>
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{state !== "idle" && (
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<span className="absolute inset-0 flex items-center justify-center rounded-full bg-background/70">
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{state === "sending" ? (
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<Loader2 className="size-4 animate-spin text-foreground" />
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) : (
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<Check className="size-5 text-primary" />
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)}
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</span>
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)}
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</span>
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<span className="w-full truncate text-xs text-foreground">
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{peer.name}
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</span>
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</button>
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</li>
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);
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})}
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</ul>
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</section>
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)}
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{friends.length > 0 && (
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<section className={frequent.length > 0 ? "border-t border-border" : ""}>
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<h3 className="px-4 pb-2 pt-4 text-xs font-medium uppercase tracking-wide text-muted-foreground">
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Friends
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</h3>
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<ul className="divide-y divide-border">
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{friends.map((u) => {
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const state = states[u.handle] ?? "idle";
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return (
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<li
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key={u.handle}
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className="flex items-center gap-3 px-4 py-2.5"
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>
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<UserAvatar
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src={u.avatar_url}
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name={u.name}
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className="size-9 shrink-0"
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/>
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<div className="min-w-0 flex-1">
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<p className="truncate text-sm text-foreground">
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{u.name}
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</p>
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<p className="truncate text-xs text-muted-foreground">
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@{u.handle}
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</p>
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</div>
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<Button
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size="sm"
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variant={state === "sent" ? "outline" : "default"}
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disabled={state !== "idle"}
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onClick={() => sendTo(u.handle)}
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className="shrink-0"
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>
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{state === "sending" ? (
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<Loader2 className="size-4 animate-spin" />
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) : state === "sent" ? (
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<>
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<Check className="size-4" /> Sent
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</>
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) : (
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<>
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<Send className="size-4" /> Send
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</>
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)}
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</Button>
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</li>
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);
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})}
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</ul>
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</section>
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)}
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</>
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)}
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</ResponsiveDialog>
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);
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}
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