audio-ui/components/editor/EditControls.tsx

'use client';

import * as React from 'react';
import { Scissors, Copy, Clipboard, Trash2, CropIcon, Info } from 'lucide-react';
import { Button } from '@/components/ui/Button';
import { cn } from '@/lib/utils/cn';
import type { Selection } from '@/types/selection';
import { formatDuration } from '@/lib/audio/decoder';

export interface EditControlsProps {
  selection: Selection | null;
  hasClipboard: boolean;
  onCut: () => void;
  onCopy: () => void;
  onPaste: () => void;
  onDelete: () => void;
  onTrim: () => void;
  onClearSelection: () => void;
  className?: string;
}

export function EditControls({
  selection,
  hasClipboard,
  onCut,
  onCopy,
  onPaste,
  onDelete,
  onTrim,
  onClearSelection,
  className,
}: EditControlsProps) {
  const hasSelection = selection !== null;
  const selectionDuration = selection ? selection.end - selection.start : 0;

  return (
    <div className={cn('space-y-4', className)}>
      {/* Selection Info */}
      {hasSelection && (
        <div className="rounded-lg border border-info bg-info/10 p-3">
          <div className="flex items-start gap-2">
            <Info className="h-4 w-4 text-info-foreground mt-0.5 flex-shrink-0" />
            <div className="flex-1 min-w-0 text-sm">
              <p className="font-medium text-info-foreground">Selection Active</p>
              <p className="text-info-foreground/90 mt-1">
                Duration: {formatDuration(selectionDuration)} |
                Start: {formatDuration(selection.start)} |
                End: {formatDuration(selection.end)}
              </p>
              <p className="text-xs text-info-foreground/75 mt-1">
                Tip: Hold Shift and drag on the waveform to select a region
              </p>
            </div>
          </div>
        </div>
      )}

      {/* Edit Buttons */}
      <div className="grid grid-cols-2 gap-2">
        <Button
          variant="outline"
          onClick={onCut}
          disabled={!hasSelection}
          title="Cut (Ctrl+X)"
          className="justify-start"
        >
          <Scissors className="h-4 w-4 mr-2" />
          Cut
        </Button>

        <Button
          variant="outline"
          onClick={onCopy}
          disabled={!hasSelection}
          title="Copy (Ctrl+C)"
          className="justify-start"
        >
          <Copy className="h-4 w-4 mr-2" />
          Copy
        </Button>

        <Button
          variant="outline"
          onClick={onPaste}
          disabled={!hasClipboard}
          title="Paste (Ctrl+V)"
          className="justify-start"
        >
          <Clipboard className="h-4 w-4 mr-2" />
          Paste
        </Button>

        <Button
          variant="outline"
          onClick={onDelete}
          disabled={!hasSelection}
          title="Delete (Del)"
          className="justify-start"
        >
          <Trash2 className="h-4 w-4 mr-2" />
          Delete
        </Button>

        <Button
          variant="outline"
          onClick={onTrim}
          disabled={!hasSelection}
          title="Trim to Selection"
          className="justify-start"
        >
          <CropIcon className="h-4 w-4 mr-2" />
          Trim
        </Button>

        <Button
          variant="outline"
          onClick={onClearSelection}
          disabled={!hasSelection}
          title="Clear Selection (Esc)"
          className="justify-start"
        >
          Clear
        </Button>
      </div>

      {/* Keyboard Shortcuts Info */}
      <div className="text-xs text-muted-foreground space-y-1 p-3 rounded-lg bg-muted/30">
        <p className="font-medium mb-2">Keyboard Shortcuts:</p>
        <p>• Shift+Drag: Select region</p>
        <p>• Ctrl+A: Select all</p>
        <p>• Ctrl+X: Cut</p>
        <p>• Ctrl+C: Copy</p>
        <p>• Ctrl+V: Paste</p>
        <p>• Delete: Delete selection</p>
        <p>• Escape: Clear selection</p>
      </div>
    </div>
  );
}