'use client';

import { useEditor, EditorContent } from '@tiptap/react';
import StarterKit from '@tiptap/starter-kit';
import Link from '@tiptap/extension-link';
import Placeholder from '@tiptap/extension-placeholder';
import { useEffect } from 'react';
import { Button } from '@/components/ui/button';
import {
  Bold,
  Italic,
  Strikethrough,
  Code,
  List,
  ListOrdered,
  Quote,
  Undo,
  Redo,
} from 'lucide-react';
import { cn } from '@/lib/utils';

interface NoteEditorProps {
  content: string;
  onChange: (content: string) => void;
  onBlur?: () => void;
}

export function NoteEditor({ content, onChange, onBlur }: NoteEditorProps) {
  const editor = useEditor({
    extensions: [
      StarterKit,
      Link.configure({
        openOnClick: false,
      }),
      Placeholder.configure({
        placeholder: 'Start writing... Use [[Note Title]] to link to other notes',
      }),
    ],
    content,
    onUpdate: ({ editor: e }) => {
      onChange(e.getHTML());
    },
    onBlur: () => {
      onBlur?.();
    },
  });

  useEffect(() => {
    if (editor && content !== editor.getHTML()) {
      editor.commands.setContent(content);
    }
  }, [content, editor]);

  if (!editor) {
    return null;
  }

  return (
    <div className="flex h-full flex-col">
      {/* Toolbar */}
      <div className="mb-4 flex flex-wrap gap-1 border-b pb-2">
        <ToolbarButton
          onClick={() => editor.chain().focus().toggleBold().run()}
          active={editor.isActive('bold')}
          label="Bold"
        >
          <Bold className="h-4 w-4" />
        </ToolbarButton>
        <ToolbarButton
          onClick={() => editor.chain().focus().toggleItalic().run()}
          active={editor.isActive('italic')}
          label="Italic"
        >
          <Italic className="h-4 w-4" />
        </ToolbarButton>
        <ToolbarButton
          onClick={() => editor.chain().focus().toggleStrike().run()}
          active={editor.isActive('strike')}
          label="Strikethrough"
        >
          <Strikethrough className="h-4 w-4" />
        </ToolbarButton>
        <ToolbarButton
          onClick={() => editor.chain().focus().toggleCode().run()}
          active={editor.isActive('code')}
          label="Code"
        >
          <Code className="h-4 w-4" />
        </ToolbarButton>
        <div className="mx-1 w-px bg-border" />
        <ToolbarButton
          onClick={() => editor.chain().focus().toggleBulletList().run()}
          active={editor.isActive('bulletList')}
          label="Bullet list"
        >
          <List className="h-4 w-4" />
        </ToolbarButton>
        <ToolbarButton
          onClick={() => editor.chain().focus().toggleOrderedList().run()}
          active={editor.isActive('orderedList')}
          label="Ordered list"
        >
          <ListOrdered className="h-4 w-4" />
        </ToolbarButton>
        <ToolbarButton
          onClick={() => editor.chain().focus().toggleBlockquote().run()}
          active={editor.isActive('blockquote')}
          label="Blockquote"
        >
          <Quote className="h-4 w-4" />
        </ToolbarButton>
        <div className="mx-1 w-px bg-border" />
        <ToolbarButton
          onClick={() => editor.chain().focus().undo().run()}
          disabled={!editor.can().undo()}
          label="Undo"
        >
          <Undo className="h-4 w-4" />
        </ToolbarButton>
        <ToolbarButton
          onClick={() => editor.chain().focus().redo().run()}
          disabled={!editor.can().redo()}
          label="Redo"
        >
          <Redo className="h-4 w-4" />
        </ToolbarButton>
      </div>

      {/* Editor content */}
      <div className="flex-1 overflow-auto">
        <EditorContent editor={editor} className="tiptap-editor min-h-[400px]" tabIndex={0} />
      </div>
    </div>
  );
}

function ToolbarButton({
  onClick,
  active,
  disabled,
  label,
  children,
}: {
  onClick: () => void;
  active?: boolean;
  disabled?: boolean;
  label: string;
  children: React.ReactNode;
}) {
  return (
    <Button
      variant="ghost"
      size="icon"
      className={cn('h-8 w-8', active && 'bg-accent text-accent-foreground')}
      onClick={onClick}
      disabled={disabled}
      aria-label={label}
      aria-pressed={active}
    >
      {children}
    </Button>
  );
}