);
}
function PMChat({ theme, t, messages, busy, onSend, onNewSession, onChip, onCite, onRate, inspectorName, property, onSetProperty, priorVisitCount, prefill, onPrefillConsumed }) {
const scrollRef = React.useRef(null);
// After a real break, offer a clean break — never take it automatically.
const [gapDismissed, setGapDismissed] = React.useState(false);
const lastAt = React.useMemo(() => {
for (let i = messages.length - 1; i >= 0; i--) if (messages[i].at) return messages[i].at;
return null;
}, [messages]);
// Inspectors read a determination with their hands full — don't let the screen sleep.
React.useEffect(() => {
if (!('wakeLock' in navigator) || messages.length === 0) return;
let lock = null, released = false;
const acquire = async () => {
try { lock = await navigator.wakeLock.request('screen'); } catch (e) { /* denied or unsupported */ }
};
const onVisible = () => { if (document.visibilityState === 'visible' && !released) acquire(); };
acquire();
document.addEventListener('visibilitychange', onVisible);
return () => {
released = true;
document.removeEventListener('visibilitychange', onVisible);
try { lock && lock.release(); } catch (e) { /* noop */ }
};
}, [messages.length > 0]);
const [now, setNow] = React.useState(() => Date.now());
React.useEffect(() => {
const id = setInterval(() => setNow(Date.now()), 60000);
return () => clearInterval(id);
}, []);
React.useEffect(() => { setGapDismissed(false); }, [messages.length === 0]);
const staleFor = lastAt ? now - lastAt : 0;
const showNewStop = !busy && !gapDismissed && messages.length > 0 && staleFor >= 90 * 60000;
React.useEffect(() => {
const el = scrollRef.current;
if (el) el.scrollTop = el.scrollHeight;
}, [messages.length, busy]);
const empty = messages.length === 0;
return (
{/* Chat header */}
Marshal
Florida Fire Prevention Code · NFPA
{messages.length > 0 && (
)}
{onSetProperty && (
)}
{/* Messages */}
{empty && !busy && (
I'm right here with you.
Tell me what you're seeing on site — or snap a photo and I'll walk through it with you — and we'll work out the right call together, code section and all.
)}
{msg.text && (