Lofi_Generator/components/lofi-generator/LayerBox.tsx

'use client';

import { Toggle } from '@/components/ui/toggle';
import { Slider } from '@/components/ui/slider';
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from '@/components/ui/select';
import { Volume2, VolumeX } from 'lucide-react';
import { ReactNode } from 'react';

interface InstrumentOption {
  readonly value: string;
  readonly label: string;
}

interface LayerBoxProps {
  title: string;
  icon: ReactNode;
  volume: number;
  muted: boolean;
  instrument: string;
  instrumentOptions: readonly InstrumentOption[];
  onVolumeChange: (volume: number) => void;
  onToggleMute: () => void;
  onInstrumentChange: (instrument: string) => void;
  accentColor: 'grey' | 'red' | 'green' | 'babyblue' | 'pink' | 'purple';
}

const accentStyles = {
  grey: {
    border: 'border-slate-400/30 hover:border-slate-400/50',
    bg: 'bg-slate-300/10',
    icon: 'text-slate-400',
    slider: '[&_[data-slot=slider-range]]:bg-slate-400 [&_[data-slot=slider-thumb]]:border-slate-400',
  },
  red: {
    border: 'border-rose-400/30 hover:border-rose-400/50',
    bg: 'bg-rose-400/8',
    icon: 'text-rose-400',
    slider: '[&_[data-slot=slider-range]]:bg-rose-400 [&_[data-slot=slider-thumb]]:border-rose-400',
  },
  green: {
    border: 'border-emerald-400/30 hover:border-emerald-400/50',
    bg: 'bg-gradient-to-r from-emerald-400/10 to-white/5',
    icon: 'text-emerald-400',
    slider: '[&_[data-slot=slider-range]]:bg-emerald-400 [&_[data-slot=slider-thumb]]:border-emerald-400',
  },
  babyblue: {
    border: 'border-sky-300/30 hover:border-sky-300/50',
    bg: 'bg-sky-300/8',
    icon: 'text-sky-300',
    slider: '[&_[data-slot=slider-range]]:bg-sky-300 [&_[data-slot=slider-thumb]]:border-sky-300',
  },
  pink: {
    border: 'border-lofi-pink/30 hover:border-lofi-pink/50',
    bg: 'bg-lofi-pink/5',
    icon: 'text-lofi-pink',
    slider: '[&_[data-slot=slider-range]]:bg-lofi-pink [&_[data-slot=slider-thumb]]:border-lofi-pink',
  },
  purple: {
    border: 'border-lofi-purple/30 hover:border-lofi-purple/50',
    bg: 'bg-lofi-purple/5',
    icon: 'text-lofi-purple',
    slider: '[&_[data-slot=slider-range]]:bg-lofi-purple [&_[data-slot=slider-thumb]]:border-lofi-purple',
  },
};

export function LayerBox({
  title,
  icon,
  volume,
  muted,
  instrument,
  instrumentOptions,
  onVolumeChange,
  onToggleMute,
  onInstrumentChange,
  accentColor,
}: LayerBoxProps) {
  const styles = accentStyles[accentColor];

  return (
    <div
      className={`
        rounded-xl border-2 p-4 transition-all duration-200
        ${styles.border} ${styles.bg}
      `}
    >
      <div className="flex items-center justify-between mb-3">
        <div className="flex items-center gap-2">
          <span className={styles.icon}>{icon}</span>
          <span className="font-medium text-sm">{title}</span>
        </div>
        <div className="flex items-center gap-2">
          <Select value={instrument} onValueChange={onInstrumentChange}>
            <SelectTrigger className="h-7 w-28 text-xs bg-secondary/50 border-border/50">
              <SelectValue />
            </SelectTrigger>
            <SelectContent>
              {instrumentOptions.map((opt) => (
                <SelectItem key={opt.value} value={opt.value} className="text-xs">
                  {opt.label}
                </SelectItem>
              ))}
            </SelectContent>
          </Select>
          <Toggle
            pressed={!muted}
            onPressedChange={onToggleMute}
            size="sm"
            className="h-7 w-7 p-0"
            aria-label={`Toggle ${title}`}
          >
            {muted ? (
              <VolumeX className="h-3.5 w-3.5 text-muted-foreground" />
            ) : (
              <Volume2 className={`h-3.5 w-3.5 ${styles.icon}`} />
            )}
          </Toggle>
        </div>
      </div>

      <div className="flex items-center gap-3">
        <Slider
          value={[volume]}
          onValueChange={([v]) => onVolumeChange(v)}
          min={0}
          max={1}
          step={0.01}
          className={`flex-1 ${styles.slider}`}
          disabled={muted}
        />
        <span className="text-xs text-muted-foreground font-mono w-10 text-right">
          {Math.round(volume * 100)}%
        </span>
      </div>
    </div>
  );
}