frontend/src/editor/StackView.tsx

import { NodeViewWrapper, NodeViewContent } from "@tiptap/react";
import { useCallback } from "react";
import type { NodeViewProps } from "@tiptap/react";

const GAP_MAP: Record<string, string> = {
  small: "8px",
  medium: "16px",
  large: "24px",
};

const LAYOUT_OPTIONS = ["2-column", "3-column", "4-column"];
const GAP_OPTIONS = ["small", "medium", "large"];

export function StackView({ node, updateAttributes, editor, getPos }: NodeViewProps) {
  const layout = (node.attrs.layout as string) || "2-column";
  const gap = (node.attrs.gap as string) || "medium";
  const colCount = parseInt(layout) || 2;

  const handleLayoutChange = useCallback(
    (e: React.ChangeEvent<HTMLSelectElement>) => {
      const newLayout = e.target.value;
      const newColCount = parseInt(newLayout) || 2;
      const pos = getPos();
      if (typeof pos === "number") {
        editor.commands.setStackColumns(pos, newColCount);
      }
    },
    [editor, getPos],
  );

  const handleGapChange = useCallback(
    (e: React.ChangeEvent<HTMLSelectElement>) => updateAttributes({ gap: e.target.value }),
    [updateAttributes],
  );

  return (
    <NodeViewWrapper data-component="stack" className="stack-wrapper">
      <div className="stack-container">
        <div contentEditable={false} className="stack-header">
          <span className="stack-header-icon">▥</span>
          <span className="stack-header-label">Stack</span>
          <select
            value={layout}
            onChange={handleLayoutChange}
            className="stack-header-select"
          >
            {LAYOUT_OPTIONS.map((opt) => (
              <option key={opt} value={opt}>{opt}</option>
            ))}
          </select>
          <select
            value={gap}
            onChange={handleGapChange}
            className="stack-header-select"
          >
            {GAP_OPTIONS.map((opt) => (
              <option key={opt} value={opt}>{opt}</option>
            ))}
          </select>
        </div>

        <div
          className="stack-grid"
          style={{
            display: "grid",
            gridTemplateColumns: `repeat(${colCount}, 1fr)`,
            gap: GAP_MAP[gap] || "16px",
            padding: "10px 12px",
          }}
        >
          <NodeViewContent className="stack-columns" />
        </div>
      </div>
    </NodeViewWrapper>
  );
}