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import { Link, useSearch } from "@tanstack/react-router";
import { ArrowLeft, MessageCircle, Phone, TriangleAlert } from "lucide-react";
import { ConversationList } from "../../../components/whatsapp/ConversationList";
import { ContactTypeTag } from "../../../components/whatsapp/ContactTypeTag";
import { MessageThread } from "../../../components/whatsapp/MessageThread";
import { ReplyBox } from "../../../components/whatsapp/ReplyBox";
import { SlaStrip } from "../../../components/whatsapp/SlaStrip";
import { WhatsAppPageLayout } from "../../../components/whatsapp/WhatsAppPageLayout";
import { Separator } from "../../../components/ui/separator";
import { STATUS_CODE_TYPE, STATUS_INK } from "../../../components/ui/status-ink";
import { cn } from "../../../lib/utils";
import {
useMarkConversationRead,
useReplyToConversation,
useStartProConversation,
useWhatsAppConversation,
useWhatsAppConversations,
useWhatsAppStats,
useWhatsAppTemplates,
} from "../../../hooks/queries/useWhatsAppQueries";
import { getErrorMessage } from "../../../lib/api";
import type { WaInboxRow } from "../../../lib/api/whatsapp";
import { notify } from "../../../lib/notify";
import {
elapsedSince,
formatAgeLong,
formatAgeShort,
} from "../../../lib/whatsapp/triage";
/**
* The one WhatsApp inbox, now doing the job the deleted RRM triage screen did.
*
* WHAT THIS SCREEN IS FOR
* Not browsing conversations — answering the ones that are late. So it opens
* on the backlog, server-ordered oldest-waiting-first, with the age leading
* every row and three server-owned figures above it. Browsing is the `All`
* mode, one chip away.
*
* ONE CLOCK
* `now` is state on this page, ticked once a minute, and passed down to the
* strip, the rows and the reply box. Every age, every countdown and every
* threshold on screen is then computed from the same instant — a component
* that called `Date.now()` itself could render "4h12m" next to "4h13m" and
* look broken.
*
* A MINUTE, NOT A SECOND. Nothing on screen has second resolution, so a
* per-second interval would re-render the whole inbox sixty times for no
* visible change.
*
* TWO MOCKUP AFFORDANCES ARE DELIBERATELY ABSENT, because both need data or
* write paths this inbox does not have:
*
* - **"Open lead ▸" in the thread header.** `wa_conversations.inquiry_id`
* points at an INQUIRY, and the admin surface for homeowner demand is the
* lead store (`/admin/web-leads`), keyed on a different row. There is no
* inquiry → lead mapping on the wire, so the link would be a guess.
* - **The "⋯ more actions" menu (assign / mark answered / block).** All three
* are write paths that do not exist: no assignee column, no manual
* "answered" flag (and inventing one would be a second definition of
* `waitingOnUs`), and no block list outside the deleted RRM suppression
* table. A menu of three dead items is worse than no menu.
*/
const CLOCK_TICK_MS = 60_000;
/**
* The left panel is narrow, so a page is short enough to scan without
* scrolling past the fold. The API accepts up to 100.
*/
const PAGE_SIZE = 25;
export function WhatsAppInboxPage() {
const searchParams = useSearch({ strict: false }) as {
id?: number;
view?: "unread";
};
const [selectedId, setSelectedId] = useState<number | null>(
searchParams?.id ?? null,
);
const [search, setSearch] = useState("");
const [contactTypeFilter, setContactTypeFilter] = useState("");
// `?view=unread` is the dashboard's Unread card. Read once, as the initial
// value, so the operator can then clear it like any other filter.
const [hasUnread, setHasUnread] = useState(searchParams?.view === "unread");
const [hasCustomerReply, setHasCustomerReply] = useState(false);
const [answeredByUs, setAnsweredByUs] = useState(false);
// Opens on the backlog. A triage screen that opens on "everything, newest
// first" has buried its own purpose under the most recent conversation.
const [waitingOnly, setWaitingOnly] = useState(
searchParams?.view !== "unread",
);
const [offset, setOffset] = useState(0);
const [now, setNow] = useState(() => new Date());
const messageEndRef = useRef<HTMLDivElement>(null);
useEffect(() => {
const timer = setInterval(() => setNow(new Date()), CLOCK_TICK_MS);
return () => clearInterval(timer);
}, []);
// Every filter change narrows or widens the result set, so an offset carried
// over from the previous one can land past the end and show an empty panel
// that looks like "no conversations".
const changeFilter = <T,>(set: (value: T) => void) => {
return (value: T) => {
set(value);
setOffset(0);
};
};
const {
data: conversationPage,
isLoading: convsLoading,
isError: convsError,
} = useWhatsAppConversations({
search: search || undefined,
contactType: contactTypeFilter || undefined,
// Sent only when on, so the query key and the request URL stay clean.
hasUnread: hasUnread || undefined,
hasCustomerReply: hasCustomerReply || undefined,
answeredByUs: answeredByUs || undefined,
waitingOnUs: waitingOnly || undefined,
limit: PAGE_SIZE,
offset,
});
const conversations = conversationPage?.conversations ?? [];
const total = conversationPage?.total ?? 0;
/**
* The backlog probe: one row, unfiltered, from the waiting branch.
*
* It answers three questions at once and all three are server-owned. Its
* `total` is the inbox-wide "waiting on us" count, which the visible page
* cannot derive — 25 rows describe the page, not the inbox. Its single row
* is, by construction, the oldest waiter, because that branch is ordered
* `last_customer_message_at ASC` on the server; so it supplies the name for
* the strip's sentence and the id for "Jump to it".
*
* Unfiltered on purpose: the strip must keep describing the WHOLE inbox
* while the list beside it is narrowed, or filtering would appear to fix
* the backlog.
*/
const { data: backlog } = useWhatsAppConversations({
waitingOnUs: true,
limit: 1,
});
const waitingCount = backlog?.total ?? 0;
const oldestWaiter = backlog?.conversations[0];
const { data: stats } = useWhatsAppStats();
const {
data: conversationData,
isLoading: detailLoading,
isError: detailError,
} = useWhatsAppConversation(selectedId);
const pro = conversationData?.conversation.pro;
// A pro we have never messaged has no conversation yet; open one (nothing
// is sent) so the thread and the template reply box work as usual.
const startProConversation = useStartProConversation();
const handleSelect = (row: WaInboxRow) => {
if (row.id !== null) return setSelectedId(row.id);
Iif (!row.proId || startProConversation.isPending) return;
startProConversation.mutate(row.proId, {
onSuccess: (conversation) => {
Eif (conversation) setSelectedId(conversation.id);
},
onError: (err) => notify.error(getErrorMessage(err)),
});
};
/**
* Jump to the oldest waiter — and widen the list first.
*
* Without the reset, a thread opens on the right while no row matches it on
* the left, which reads as a bug. Clearing to the unfiltered waiting view
* also guarantees the row is on screen: it is that view's first row.
*/
const handleJump = (id: number) => {
setSearch("");
setContactTypeFilter("");
setHasUnread(false);
setHasCustomerReply(false);
setAnsweredByUs(false);
setWaitingOnly(true);
setOffset(0);
setSelectedId(id);
};
const { data: templates = [] } = useWhatsAppTemplates();
const replyMutation = useReplyToConversation();
const { mutate: markAsRead } = useMarkConversationRead();
/**
* The backlog in the tab title.
*
* A backgrounded tab that reads `(7)` is the cheapest backlog alarm
* available. The original title is captured once, on mount, so the effect
* cannot capture its own output and compound the prefix on every tick.
*/
const originalTitle = useRef<string | null>(null);
useEffect(() => {
originalTitle.current ??= document.title;
return () => {
Eif (originalTitle.current !== null) {
document.title = originalTitle.current;
}
};
}, []);
useEffect(() => {
// `??`, not `||`: an empty captured title is still the captured title,
// and falling back to `document.title` here would re-read a value this
// effect may already have prefixed — which is how `(7) (7) …` happens.
const base = originalTitle.current ?? document.title;
document.title = waitingCount > 0 ? `(${waitingCount}) ${base}` : base;
}, [waitingCount]);
// Auto-scroll to bottom when messages change
const messageCount = conversationData?.messages?.length;
// biome-ignore lint/correctness/useExhaustiveDependencies: messageCount is an intentional trigger to scroll on new messages
useEffect(() => {
messageEndRef.current?.scrollIntoView({ behavior: "smooth" });
}, [messageCount]);
// Mark conversation as read when selected and has unread messages
const unreadCount = conversationData?.conversation?.unreadCount ?? 0;
useEffect(() => {
if (selectedId && unreadCount > 0) {
markAsRead(selectedId);
}
}, [selectedId, unreadCount, markAsRead]);
const handleSendText = (message: string) => {
Iif (!selectedId) return;
replyMutation.mutate({ id: selectedId, body: { message } });
};
const handleSendTemplate = (
templateName: string,
language: string,
components?: unknown[],
) => {
Iif (!selectedId) return;
replyMutation.mutate({
id: selectedId,
body: { templateName, language, components },
});
};
const inboundAgeMs = elapsedSince(
conversationData?.conversation.lastCustomerMessageAt,
now,
);
return (
<WhatsAppPageLayout fullHeight>
<div className="flex h-full flex-col">
<div className="px-4 pt-3 pb-2">
{/* ~1.375rem is the page-title cap; Display sizes are for empty
states and auth, not for a working screen. */}
<h1 className="text-xl font-semibold text-foreground-default">
Inbox
</h1>
</div>
{/* The page rule carries this screen's one index-red marker. */}
<Separator marked />
<SlaStrip
waitingCount={waitingCount}
oldestWaitingAt={stats?.oldestWaitingAt ?? null}
answeredToday={stats?.answeredToday}
oldest={
oldestWaiter
? {
id: oldestWaiter.id,
name:
oldestWaiter.pro?.businessName ||
oldestWaiter.contactName ||
oldestWaiter.phoneNumber,
}
: null
}
onJump={handleJump}
search={search}
onSearchChange={changeFilter(setSearch)}
now={now}
/>
<div className="flex min-h-0 flex-1">
{/* Left Panel: the triage list */}
<div
className={`w-80 flex-shrink-0 ${selectedId ? "hidden md:flex md:flex-col" : "flex w-full flex-col md:w-80"}`}
>
<ConversationList
conversations={conversations}
selectedId={selectedId}
onSelect={handleSelect}
waitingOnly={waitingOnly}
onWaitingOnlyChange={changeFilter(setWaitingOnly)}
contactTypeFilter={contactTypeFilter}
onContactTypeFilterChange={changeFilter(setContactTypeFilter)}
hasUnread={hasUnread}
onHasUnreadChange={changeFilter(setHasUnread)}
hasCustomerReply={hasCustomerReply}
onHasCustomerReplyChange={changeFilter(setHasCustomerReply)}
answeredByUs={answeredByUs}
onAnsweredByUsChange={changeFilter(setAnsweredByUs)}
total={total}
offset={offset}
pageSize={PAGE_SIZE}
onOffsetChange={setOffset}
isLoading={convsLoading}
isError={convsError}
hasActiveFilters={
Boolean(search) ||
Boolean(contactTypeFilter) ||
hasUnread ||
hasCustomerReply ||
answeredByUs
}
now={now}
/>
</div>
{/* Right Panel: the thread */}
<div
className={`flex flex-1 flex-col ${selectedId ? "flex" : "hidden md:flex"}`}
>
{selectedId && detailError ? (
<div className="flex flex-1 flex-col items-center justify-center gap-2 px-6 text-center">
<TriangleAlert
aria-hidden="true"
className={cn("h-8 w-8", STATUS_INK.error)}
/>
<p className="text-sm font-semibold text-foreground-default">
Could not load this conversation
</p>
<p className="text-xs text-foreground-muted">
Nothing has been sent. Reload the page and try again.
</p>
</div>
) : selectedId && conversationData ? (
<>
{/* Contact header */}
<div className="flex items-start gap-3 border-b border-border-default px-4 py-3">
<button
type="button"
onClick={() => setSelectedId(null)}
aria-label="Back to the list"
className="p-1 text-foreground-muted hover:text-foreground-default md:hidden"
>
<ArrowLeft aria-hidden="true" className="h-5 w-5" />
</button>
<div className="min-w-0 flex-1">
<p className="truncate text-sm font-semibold text-foreground-default">
<span className="tabular-nums">
{conversationData.conversation.phoneNumber}
</span>
{" · "}
{pro ? (
<Link
to="/admin/pros/$proId"
params={{ proId: pro.id }}
className="hover:underline"
>
{pro.businessName}
</Link>
) : (
conversationData.conversation.contactName ||
"Unknown contact"
)}
</p>
<div className="mt-0.5 flex items-center gap-2 text-xs text-foreground-muted">
<Phone aria-hidden="true" className="h-3 w-3" />
{/*
* Factual, and deliberately NOT the words "waiting on
* us". That predicate is defined once, on the server
* (`waitingOnUs`), and spelling it a second time in
* the browser is exactly how the badge that disagreed
* with the screen next to it shipped last time. The
* age of their last inbound is a fact about this row.
*/}
{inboundAgeMs === null ? (
<span>They have not written yet</span>
) : (
<span>
<span aria-hidden="true">
Their last message · {formatAgeShort(inboundAgeMs)}{" "}
ago
</span>
<span className="sr-only">
Their last message was{" "}
{formatAgeLong(inboundAgeMs)} ago
</span>
</span>
)}
</div>
{pro && (
<p className="truncate text-xs text-foreground-subtle">
{[
pro.ownerName,
pro.ownerEmail ?? pro.email,
pro.city,
pro.status,
]
.filter(Boolean)
.join(" · ")}
</p>
)}
</div>
<ContactTypeTag
contactType={conversationData.conversation.contactType}
className="mt-0.5 shrink-0"
/>
</div>
{/* Messages */}
<div className="flex-1 overflow-y-auto">
<MessageThread
messages={conversationData.messages}
templates={templates}
isLoading={detailLoading}
/>
<div ref={messageEndRef} />
</div>
<ReplyBox
conversation={conversationData.conversation}
windowExpiresAt={conversationData.windowExpiresAt}
templates={templates}
onSendText={handleSendText}
onSendTemplate={handleSendTemplate}
isSending={replyMutation.isPending}
now={now}
/>
</>
) : (
<div className="flex flex-1 flex-col items-center justify-center gap-2 text-center text-foreground-muted">
<MessageCircle aria-hidden="true" className="h-10 w-10" />
<p className="text-sm font-semibold text-foreground-default">
Select a conversation
</p>
<p className={cn(STATUS_CODE_TYPE, "text-foreground-subtle")}>
Oldest waiting first
</p>
</div>
)}
</div>
</div>
</div>
</WhatsAppPageLayout>
);
}
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