import type { Editor } from "@tiptap/core";
import type { VariableViewMode } from "../../TemplateEditor/store";
import { type VariableStorage } from "./variable-storage.types";
/**
 * Gets the variable view mode from the editor storage.
 * Safely handles cases where storage or variable storage is not initialized.
 *
 * @param editor - The TipTap editor instance
 * @param fallback - Fallback value if storage is not available (default: "show-variables")
 * @returns The current variable view mode
 *
 * @example
 * ```typescript
 * const editor = useCurrentEditor();
 * const viewMode = getVariableViewMode(editor);
 * ```
 */
export declare function getVariableViewMode(editor: Editor | null | undefined, fallback?: VariableViewMode): VariableViewMode;
/**
 * Sets the variable view mode in the editor storage.
 * Safely handles cases where storage or variable storage is not initialized.
 *
 * @param editor - The TipTap editor instance
 * @param mode - The new variable view mode to set
 * @returns true if the mode was set successfully, false otherwise
 *
 * @example
 * ```typescript
 * const editor = useCurrentEditor();
 * setVariableViewMode(editor, 'wysiwyg');
 * ```
 */
export declare function setVariableViewMode(editor: Editor | null | undefined, mode: VariableViewMode): boolean;
/**
 * Gets the entire variable storage object from the editor.
 * Safely handles cases where storage is not initialized.
 *
 * @param editor - The TipTap editor instance
 * @returns The variable storage object, or undefined if not available
 *
 * @example
 * ```typescript
 * const editor = useCurrentEditor();
 * const storage = getVariableStorage(editor);
 * if (storage) {
 *   console.log('View mode:', storage.variableViewMode);
 * }
 * ```
 */
export declare function getVariableStorage(editor: Editor | null | undefined): VariableStorage | undefined;
/**
 * Initializes the variable storage on an editor instance.
 * Should be called in the Variable extension's addStorage() method.
 *
 * @param defaultViewMode - The default variable view mode (default: "show-variables")
 * @returns The initial storage object
 *
 * @example
 * ```typescript
 * // In Variable extension
 * addStorage() {
 *   return initializeVariableStorage();
 * }
 * ```
 */
export declare function initializeVariableStorage(defaultViewMode?: VariableViewMode): VariableStorage;
/**
 * Type guard to check if an object has variable storage
 */
export declare function hasVariableStorage(storage: unknown): storage is {
    variable: VariableStorage;
};