import React from "react";

type UseEditorShortcutsOptions = {
  onSave: () => void;
  onUndo: () => void;
  onRedo: () => void;
  onCopy: () => void;
  onCut: () => void;
  onPaste: (e?: ClipboardEvent) => void;
  onDelete: () => void;
};

function isEditableTarget(e: Event) {
  return e.target instanceof HTMLElement && /^(input|textarea|select)$/i.test(e.target.tagName);
}

export function useEditorShortcuts(options: UseEditorShortcutsOptions) {
  const { onSave, onUndo, onRedo, onCopy, onCut, onPaste, onDelete } = options;

  React.useEffect(() => {
    function handleKeyDown(e: KeyboardEvent) {
      if (e.ctrlKey || e.metaKey) {
        if (e.key.toLowerCase() === "s") {
          e.preventDefault();
          onSave();
          return;
        }
        if (e.key.toLowerCase() === "z" && !e.shiftKey) {
          e.preventDefault();
          onUndo();
          return;
        }
        if (e.key.toLowerCase() === "z" && e.shiftKey) {
          e.preventDefault();
          onRedo();
          return;
        }
        if (e.key.toLowerCase() === "y") {
          e.preventDefault();
          onRedo();
          return;
        }
      }

      if (e.key === "Delete" || e.key === "Backspace") {
        if (isEditableTarget(e)) return;
        e.preventDefault();
        onDelete();
      }
    }

    function handleCopy(e: ClipboardEvent) {
      if (isEditableTarget(e)) return;
      e.preventDefault();
      onCopy();
    }

    function handleCut(e: ClipboardEvent) {
      if (isEditableTarget(e)) return;
      e.preventDefault();
      onCut();
    }

    function handlePaste(e: ClipboardEvent) {
      if (isEditableTarget(e)) return;
      e.preventDefault();
      onPaste(e);
    }

    window.addEventListener("keydown", handleKeyDown);
    window.addEventListener("copy", handleCopy);
    window.addEventListener("cut", handleCut);
    window.addEventListener("paste", handlePaste);
    return () => {
      window.removeEventListener("keydown", handleKeyDown);
      window.removeEventListener("copy", handleCopy);
      window.removeEventListener("cut", handleCut);
      window.removeEventListener("paste", handlePaste);
    };
  }, [onCopy, onCut, onDelete, onPaste, onRedo, onSave, onUndo]);
}