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import { useEditor, EditorContent } from "@tiptap/react";
import StarterKit from "@tiptap/starter-kit";
import { Bold, Italic, List, ListOrdered, Code, Undo, Redo, Sparkles } from "lucide-react";
import { useEffect } from "react";
import { cn } from "../utils/cn";

interface RichTextEditorProps {
  content: string;
  onChange: (html: string) => void;
  placeholder?: string;
  variables?: string[];
}

export default function RichTextEditor({

  content,

  onChange,

  variables = ["first_name", "last_name", "company_name", "website", "location"],

}: RichTextEditorProps) {
  const editor = useEditor({
    extensions: [StarterKit],
    content,
    editorProps: {
      attributes: {
        class:
          "prose prose-invert max-w-none focus:outline-none min-h-[160px] p-3 text-sm text-zinc-200 leading-relaxed",
      },
    },
    onUpdate: ({ editor }) => {
      onChange(editor.getHTML());
    },
  });

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

  if (!editor) return null;

  const insertVariable = (variable: string) => {
    editor.commands.insertContent(`{{${variable}}}`);
  };

  return (
    <div className="border border-zinc-800 rounded-xl overflow-hidden bg-zinc-950/80 focus-within:border-indigo-500/80 transition-colors">

      {/* Toolbar */}

      <div className="flex flex-wrap items-center justify-between gap-1 p-2 border-b border-zinc-800/80 bg-zinc-900/60">

        <div className="flex items-center gap-1">

          <button

            type="button"

            onClick={() => editor.chain().focus().toggleBold().run()}

            className={cn(

              "p-1.5 rounded-md hover:bg-zinc-800 text-zinc-400 hover:text-zinc-200 transition-colors",

              editor.isActive("bold") ? "bg-zinc-800 text-indigo-400 font-bold" : ""

            )}

            title="Bold"

          >

            <Bold className="w-4 h-4" />

          </button>

          <button

            type="button"

            onClick={() => editor.chain().focus().toggleItalic().run()}

            className={cn(

              "p-1.5 rounded-md hover:bg-zinc-800 text-zinc-400 hover:text-zinc-200 transition-colors",

              editor.isActive("italic") ? "bg-zinc-800 text-indigo-400" : ""

            )}

            title="Italic"

          >

            <Italic className="w-4 h-4" />

          </button>

          <button

            type="button"

            onClick={() => editor.chain().focus().toggleBulletList().run()}

            className={cn(

              "p-1.5 rounded-md hover:bg-zinc-800 text-zinc-400 hover:text-zinc-200 transition-colors",

              editor.isActive("bulletList") ? "bg-zinc-800 text-indigo-400" : ""

            )}

            title="Bullet List"

          >

            <List className="w-4 h-4" />

          </button>

          <button

            type="button"

            onClick={() => editor.chain().focus().toggleOrderedList().run()}

            className={cn(

              "p-1.5 rounded-md hover:bg-zinc-800 text-zinc-400 hover:text-zinc-200 transition-colors",

              editor.isActive("orderedList") ? "bg-zinc-800 text-indigo-400" : ""

            )}

            title="Numbered List"

          >

            <ListOrdered className="w-4 h-4" />

          </button>

          <button

            type="button"

            onClick={() => editor.chain().focus().toggleCodeBlock().run()}

            className={cn(

              "p-1.5 rounded-md hover:bg-zinc-800 text-zinc-400 hover:text-zinc-200 transition-colors",

              editor.isActive("codeBlock") ? "bg-zinc-800 text-indigo-400" : ""

            )}

            title="Code Block"

          >

            <Code className="w-4 h-4" />

          </button>

        </div>



        <div className="flex items-center gap-1">

          <button

            type="button"

            onClick={() => editor.chain().focus().undo().run()}

            disabled={!editor.can().undo()}

            className="p-1.5 rounded-md hover:bg-zinc-800 text-zinc-400 hover:text-zinc-200 disabled:opacity-30"

          >

            <Undo className="w-4 h-4" />

          </button>

          <button

            type="button"

            onClick={() => editor.chain().focus().redo().run()}

            disabled={!editor.can().redo()}

            className="p-1.5 rounded-md hover:bg-zinc-800 text-zinc-400 hover:text-zinc-200 disabled:opacity-30"

          >

            <Redo className="w-4 h-4" />

          </button>

        </div>

      </div>



      {/* Variables Bar */}

      {variables.length > 0 && (

        <div className="px-3 py-1.5 bg-zinc-900/40 border-b border-zinc-800/60 flex items-center gap-2 overflow-x-auto text-xs">

          <span className="text-zinc-500 flex items-center gap-1 shrink-0">

            <Sparkles className="w-3 h-3 text-indigo-400" /> Insert tag:

          </span>

          <div className="flex items-center gap-1.5">

            {variables.map((v) => (

              <button

                key={v}

                type="button"

                onClick={() => insertVariable(v)}

                className="px-2 py-0.5 bg-zinc-800/80 hover:bg-indigo-500/20 hover:text-indigo-300 text-zinc-400 rounded text-[11px] font-mono transition-colors border border-zinc-700/60 shrink-0"

              >

                &#123;&#123;{v}&#125;&#125;

              </button>

            ))}

          </div>

        </div>

      )}



      {/* Editor Surface */}

      <EditorContent editor={editor} />

    </div>
  );
}