import { Mic, Square, X, Radio, Repeat } from 'lucide-react';
import { Button } from '@/components/ui/button';
import { cn } from '@/lib/utils';
import { useI18n } from '@/lib/i18n';

export type DVKMsg = { slot: number; label: string; has_audio: boolean; duration_sec: number };
export type DVKStat = { recording: boolean; playing: boolean; rec_slot: number };

type Props = {
  messages: DVKMsg[];
  status: DVKStat;
  onPlay: (slot: number) => void;
  onStop: () => void;
  onClose: () => void;
  autoCq: boolean;
  autoCqSecs: number;
  onToggleAutoCq: (on: boolean) => void;
  onSetAutoCqSecs: (n: number) => void;
  phoneOk: boolean; // false when the rig is on a non-phone mode → DVK TX blocked
};

// Operating panel for the Digital Voice Keyer — transmits the recorded F1–F6
// voice messages to the rig ("To Radio"). Mirrors the WinKeyer panel's slot in
// the reserved area. Recording/labeling lives in Settings → Audio.
export function DvkPanel({ messages, status, onPlay, onStop, onClose, autoCq, autoCqSecs, onToggleAutoCq, onSetAutoCqSecs, phoneOk }: Props) {
  const { t } = useI18n();
  const recorded = messages.filter((m) => m.has_audio);
  const anyAudio = recorded.length > 0;
  return (
    <div className="h-full flex flex-col rounded-lg border border-border bg-card shadow-sm overflow-hidden">
      <div className="flex items-center gap-2 px-3 py-1.5 border-b border-border bg-muted/40 shrink-0">
        <Mic className="size-3.5 text-primary" />
        <span className="text-[11px] font-semibold uppercase tracking-wider">{t('dvkp.voiceKeyer')}</span>
        <span className={cn('size-2 rounded-full', status.playing ? 'bg-danger animate-pulse' : 'bg-success')} />
        {status.playing && <span className="text-[10px] text-danger font-medium">TX</span>}
        <div className="flex-1" />
        <Button variant="ghost" size="sm" className="h-6 px-2 text-[11px]" onClick={onStop} disabled={!status.playing}>
          <Square className="size-3" /> {t('dvkp.stop')}
        </Button>
        <button className="text-muted-foreground hover:text-foreground" title={t('dvkp.disable')} onClick={onClose}>
          <X className="size-3.5" />
        </button>
      </div>

      <div className="flex-1 min-h-0 overflow-auto p-2">
        {!anyAudio ? (
          <div className="h-full flex flex-col items-center justify-center gap-1 text-center text-[11px] text-muted-foreground px-3">
            <Radio className="size-5 opacity-50" />
            {t('dvkp.noMsgPre')} <strong>{t('dvkp.settingsPath')}</strong> {t('dvkp.noMsgPost')}
          </div>
        ) : (
          // Only the recorded slots are shown. Two columns filling top-to-bottom
          // (rows sized to the count) — use the width instead of scrolling, so the
          // panel keeps the same height as the other reserved-area widgets.
          <div className="grid grid-flow-col gap-1"
            style={{ gridTemplateRows: `repeat(${Math.max(1, Math.ceil(recorded.length / 2))}, minmax(0, auto))` }}>
            {recorded.map((m) => (
              <button
                key={m.slot}
                type="button"
                disabled={!phoneOk}
                onClick={() => onPlay(m.slot)}
                title={!phoneOk ? t('dvkp.notPhone') : t('dvkp.transmit', { slot: m.slot, label: m.label ? ' — ' + m.label : '', dur: m.duration_sec.toFixed(1) })}
                className={cn(
                  'flex items-center gap-1.5 rounded-md border px-2 py-1 text-left transition-colors',
                  phoneOk
                    ? 'border-border bg-background hover:border-primary/60 hover:bg-accent/30 cursor-pointer'
                    : 'border-dashed border-border/60 text-muted-foreground/50 cursor-not-allowed',
                )}
              >
                <span className="font-mono text-[11px] font-bold text-primary shrink-0">F{m.slot}</span>
                <span className="text-xs truncate flex-1">{m.label || t('dvkp.message')}</span>
                {(m.label || '').toUpperCase().includes('CQ') && autoCq && <Repeat className="size-3 text-primary shrink-0" />}
                <span className="text-[9px] text-muted-foreground shrink-0">{m.duration_sec.toFixed(1)}s</span>
              </button>
            ))}
          </div>
        )}
      </div>

      {/* Auto-CQ footer — repeats a CQ-labelled slot on a timer. Greyed out on a
          non-phone mode (the DVK won't transmit there). */}
      <div className="shrink-0 border-t border-border bg-muted/30 px-2 py-1.5 flex items-center gap-2">
        <label className={cn('flex items-center gap-1.5 text-[11px] cursor-pointer', !phoneOk && 'opacity-50')} title={phoneOk ? t('dvkp.autoCqHint') : t('dvkp.notPhone')}>
          <input type="checkbox" className="accent-primary" checked={autoCq} disabled={!phoneOk}
            onChange={(e) => onToggleAutoCq(e.target.checked)} />
          <Repeat className="size-3" /> {t('dvkp.autoCq')}
        </label>
        <div className="flex-1" />
        <span className="text-[10px] text-muted-foreground">{t('dvkp.gap')}</span>
        <input type="number" min={0} max={120} value={autoCqSecs}
          onChange={(e) => onSetAutoCqSecs(parseInt(e.target.value, 10))}
          className="w-12 h-6 rounded border border-input bg-background px-1 text-[11px] font-mono text-center" />
        <span className="text-[10px] text-muted-foreground">s</span>
      </div>

      {!phoneOk && (
        <div className="shrink-0 bg-warning-muted text-warning-muted-foreground text-[10px] px-2 py-1 text-center">{t('dvkp.notPhone')}</div>
      )}
    </div>
  );
}