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// Copyright (C) 2026 Max Boksem. See NOTICE for additional terms under GPLv3 section 7.
import { useState, useEffect, useRef, useCallback } from "react";
import { X, TvMinimal, LoaderCircle, Circle, Square, CalendarClock } from "lucide-react";
import type { Channel, DownloadRecord, EpgProgram } from "@/lib/types";
import { getEpgProgrammes } from "@/lib/tauri";
import { formatHHMM } from "@/lib/epg-window";
import { isMobilePlatform } from "@/lib/platform";
import { isRecordingOf, recordingOfProgram } from "@/lib/recordings";
import { useProviderIds } from "@/hooks/useChannels";
import { useDownloads } from "@/hooks/useDownloads";
import { useNow } from "@/hooks/useNow";
import { useSheetDrag } from "@/hooks/useSheetDrag";
import { RecordDialog, type RecordRequest } from "@/components/downloads/RecordDialog";
import { EpgTimelineBar, WINDOW_PAST, WINDOW_FUTURE } from "./EpgTimelineBar";
// Recording runs ffmpeg on the computer, so phones and tablets don't offer it.
const RECORDING_SUPPORTED = !isMobilePlatform();
const NO_PROGRAMMES: EpgProgram[] = [];
interface LiveInfoDrawerProps {
channel: Channel;
onClose: () => void;
}
const formatDuration = (startTime: number, endTime: number): string => {
const mins = Math.floor((endTime - startTime) / 60);
if (mins < 60) return `${mins} min`;
const h = Math.floor(mins / 60);
const m = mins % 60;
return m === 0 ? `${h}h` : `${h}h ${m}m`;
};
export const LiveInfoDrawer = ({ channel, onClose }: LiveInfoDrawerProps) => {
const [visible, setVisible] = useState(false);
const epgId = channel.tvgId ?? channel.id;
// The schedule is kept with the guide id it's for, so a new channel shows
// the spinner until its own schedule arrives.
const [schedule, setSchedule] = useState<{ epgId: string; programmes: EpgProgram[] } | null>(
null
);
const loading = schedule?.epgId !== epgId;
const programmes = schedule && !loading ? schedule.programmes : NO_PROGRAMMES;
const now = useNow();
const [selectedProg, setSelectedProg] = useState<EpgProgram | null>(null);
const currentRowRef = useRef<HTMLLIElement | null>(null);
const { downloads } = useDownloads();
const providerIds = useProviderIds();
const [recordRequest, setRecordRequest] = useState<RecordRequest | null>(null);
// The channel's recordings, found by its name too, since a refresh can change its id.
const recordings = RECORDING_SUPPORTED
? downloads.filter((r) => isRecordingOf(r, channel, providerIds))
: [];
const running = recordings.find((r) => r.status === "recording");
const onAir = programmes.find((p) => p.startTime <= now && p.endTime > now) ?? null;
useEffect(() => {
const id = requestAnimationFrame(() => setVisible(true));
return () => cancelAnimationFrame(id);
}, []);
// Fetch schedule: 12 hours before now through 12 hours ahead
useEffect(() => {
let cancelled = false;
const nowSec = Math.floor(Date.now() / 1000);
const rangeStart = nowSec - 12 * 3600;
const rangeEnd = nowSec + 12 * 3600;
getEpgProgrammes(epgId, rangeStart, rangeEnd)
.then((data) => {
if (cancelled) return;
setSchedule({ epgId, programmes: data });
const current = data.find((p) => p.startTime <= nowSec && p.endTime > nowSec);
setSelectedProg(current ?? null);
})
.catch(() => {
Eif (!cancelled) setSchedule({ epgId, programmes: [] });
});
return () => {
cancelled = true;
};
}, [epgId]);
// Auto-scroll to current programme after programmes load
useEffect(() => {
if (!loading && currentRowRef.current) {
currentRowRef.current.scrollIntoView({ behavior: "smooth", block: "center" });
}
}, [loading]);
const handleClose = useCallback(() => {
setVisible(false);
setTimeout(onClose, 300);
}, [onClose]);
const { sheetRef, handleProps } = useSheetDrag({ onClose: handleClose, enabled: visible });
return (
<div className="fixed inset-0 z-50">
{/* Backdrop */}
<div
className={`absolute inset-0 bg-black/60 backdrop-blur-xs transition-opacity duration-300 ${
visible ? "opacity-100" : "opacity-0"
}`}
onClick={handleClose}
/>
{/* Drawer */}
<div
ref={sheetRef}
className={`absolute bottom-0 left-0 right-0 bg-card rounded-t-2xl shadow-2xl flex flex-col transition-[translate,max-height] duration-300 ease-out motion-reduce:transition-none overflow-hidden ${
visible ? "translate-y-0" : "translate-y-full"
}`}
>
{/* Handle */}
<div
{...handleProps}
className="flex justify-center pt-3 pb-1 shrink-0 select-none"
>
<div className="w-9 h-1 rounded-full bg-border" />
</div>
{/* Header row: logo + name + close */}
<div
{...handleProps}
className="flex items-center gap-3 px-5 pt-2 pb-4 shrink-0 select-none"
>
<div className="w-10 h-10 rounded-lg bg-secondary overflow-hidden shrink-0 flex items-center justify-center">
{channel.logoUrl ? (
<img
src={channel.logoUrl}
alt=""
className="h-full w-full object-contain p-0.5"
loading="lazy"
/>
) : (
<TvMinimal className="h-5 w-5 text-muted-foreground/30" />
)}
</div>
<div className="flex flex-col justify-center gap-0.5 flex-1 min-w-0">
<div className="flex items-center gap-1.5">
<span className="flex items-center gap-1 text-[10px] font-medium text-red-400">
<span className="h-1.5 w-1.5 rounded-full bg-red-400 animate-pulse" />
LIVE
</span>
</div>
<p className="text-sm font-semibold leading-tight truncate">
{channel.name}
</p>
</div>
{RECORDING_SUPPORTED &&
(running ? (
<button
onClick={() =>
setRecordRequest({ type: "stop", recording: running })
}
className="flex items-center gap-1.5 rounded-md px-2.5 py-1 text-xs font-medium text-red-400 hover:bg-red-500/10 transition-colors shrink-0"
>
<Square className="h-3 w-3 fill-current" />
Stop recording
</button>
) : (
<button
onClick={() => setRecordRequest({ type: "now", onAir })}
// Until the guide loads, it can't tell when the program on air ends.
disabled={loading}
className="flex items-center gap-1.5 rounded-md px-2.5 py-1 text-xs font-medium hover:bg-secondary/60 transition-colors shrink-0 disabled:opacity-50 disabled:pointer-events-none"
>
<Circle className="h-3 w-3 fill-red-500 text-red-500" />
Record
</button>
))}
{RECORDING_SUPPORTED && (
<button
onClick={() => setRecordRequest({ type: "range" })}
aria-label="Record a time range"
title="Record a time range"
className="text-muted-foreground hover:text-foreground transition-colors shrink-0"
>
<CalendarClock className="h-4 w-4" />
</button>
)}
<button
onClick={handleClose}
aria-label="Close"
className="text-muted-foreground hover:text-foreground transition-colors shrink-0"
>
<X className="h-4 w-4" />
</button>
</div>
<div className="border-t border-border mx-5 shrink-0" />
{/* 3-hour timeline */}
{loading ? (
<div className="flex items-center justify-center py-8 shrink-0">
<LoaderCircle className="h-5 w-5 text-muted-foreground animate-spin" />
</div>
) : programmes.length > 0 ? (
<div className="px-5 pt-4 pb-1 shrink-0">
<p className="text-[10px] font-semibold tracking-widest text-muted-foreground uppercase mb-2.5">
On Air
</p>
<EpgTimelineBar
programmes={programmes}
now={now}
windowStart={now - WINDOW_PAST}
windowEnd={now + WINDOW_FUTURE}
height="h-16"
showLabels={true}
selected={selectedProg}
onSelect={setSelectedProg}
/>
</div>
) : null}
{programmes.length > 0 && (
<div className="border-t border-border mx-5 mt-3 shrink-0" />
)}
{/* Schedule list */}
<div className="flex flex-col flex-1 min-h-0">
<div className="px-5 pt-4 pb-2 shrink-0">
<p className="text-[10px] font-semibold tracking-widest text-muted-foreground uppercase">
Schedule
</p>
</div>
{loading ? (
<div className="flex items-center justify-center flex-1 py-8">
<LoaderCircle className="h-5 w-5 text-muted-foreground animate-spin" />
</div>
) : programmes.length === 0 ? (
<div className="flex flex-col items-center justify-center flex-1 py-8 px-5 gap-2 text-center">
<p className="text-sm text-muted-foreground">
Schedule unavailable for this channel.
</p>
<p className="text-xs text-muted-foreground/60">
No EPG data matched. Configure an EPG URL in provider settings to
enable programme guides.
</p>
</div>
) : (
<ul className="flex-1 overflow-y-auto overscroll-y-none px-5 pb-4">
{programmes.map((prog, idx) => {
const isCurrent = prog.startTime <= now && prog.endTime > now;
const isPast = prog.endTime <= now;
const isSelected =
selectedProg?.startTime === prog.startTime &&
selectedProg?.channelId === prog.channelId;
return (
<li
key={`${prog.channelId}-${prog.startTime}-${idx}`}
ref={isCurrent ? currentRowRef : null}
className="flex items-center gap-1"
>
<button
onClick={() => setSelectedProg(prog)}
className={`flex-1 min-w-0 flex items-center gap-3 py-2.5 px-3 rounded-lg mb-0.5 transition-colors text-left ${
isSelected
? "bg-primary/15"
: isCurrent
? "bg-primary/10 hover:bg-primary/15"
: "hover:bg-secondary/40"
}`}
>
{/* Left accent bar */}
<div
className={`w-0.5 h-8 rounded-full shrink-0 ${
isSelected
? "bg-primary"
: isCurrent
? "bg-primary/70"
: isPast
? "bg-border"
: "bg-border/50"
}`}
/>
{/* Time */}
<span
className={`text-xs tabular-nums shrink-0 min-w-12 whitespace-nowrap ${
isPast && !isCurrent
? "text-muted-foreground/60"
: "text-muted-foreground"
}`}
>
{formatHHMM(prog.startTime)}
</span>
{/* Duration */}
<span className="text-[10px] text-muted-foreground/50 shrink-0 tabular-nums w-14">
{formatDuration(prog.startTime, prog.endTime)}
</span>
{/* Title */}
<span
className={`flex-1 text-sm leading-tight ${
isCurrent || isSelected
? "font-semibold text-foreground"
: isPast
? "text-muted-foreground/70"
: "text-foreground"
}`}
>
{prog.title}
</span>
{/* Badge */}
{isCurrent ? (
<span className="text-[10px] font-semibold text-primary shrink-0">
▶ now
</span>
) : isPast ? (
<span className="text-[10px] text-muted-foreground/50 shrink-0">
✓
</span>
) : null}
</button>
{RECORDING_SUPPORTED && isPast && (
<span className="w-8 shrink-0" aria-hidden />
)}
{RECORDING_SUPPORTED && !isPast && (
<ProgramRecordButton
program={prog}
covering={recordingOfProgram(recordings, prog, now)}
onRecord={() =>
setRecordRequest({
type: "program",
program: prog,
})
}
onStop={(recording) =>
setRecordRequest({ type: "stop", recording })
}
/>
)}
</li>
);
})}
</ul>
)}
</div>
<div className="shrink-0 pb-2" />
</div>
{RECORDING_SUPPORTED && (
<RecordDialog
channel={channel}
request={recordRequest}
onClose={() => setRecordRequest(null)}
/>
)}
</div>
);
};
/**
* The record button on a program in the schedule. It records the program, or
* asks before it cancels or stops the recording that covers it, which can
* cover more than this program.
*/
const ProgramRecordButton = ({
program,
covering,
onRecord,
onStop,
}: {
program: EpgProgram;
covering: DownloadRecord | undefined;
onRecord: () => void;
onStop: (recording: DownloadRecord) => void;
}) => {
const base =
"shrink-0 h-8 w-8 mb-0.5 flex items-center justify-center rounded-lg transition-colors";
if (covering?.status === "recording") {
return (
<button
onClick={() => onStop(covering)}
aria-label={`Stop recording ${program.title}`}
title="Recording"
className={`${base} hover:bg-red-500/10`}
>
<span className="h-2.5 w-2.5 rounded-full bg-red-500 animate-pulse" />
</button>
);
}
if (covering) {
return (
<button
onClick={() => onStop(covering)}
aria-label={`Cancel the recording of ${program.title}`}
title="Scheduled. Click to cancel."
className={`${base} hover:bg-red-500/10`}
>
<Circle className="h-3 w-3 fill-red-500 text-red-500" />
</button>
);
}
return (
<button
onClick={onRecord}
aria-label={`Record ${program.title}`}
title="Record"
className={`${base} text-muted-foreground/50 hover:text-red-400 hover:bg-secondary/40`}
>
<Circle className="h-3 w-3" />
</button>
);
};
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