import { StorageElementType } from '../types/StorageElementType.mjs';
import ExportedStorage from '../interface/export/ExportedStorage.mjs';

declare class GameStorageManager {
    private static storage;
    private constructor();
    static get keysSystem(): {
        /**
         * The key of the current dialogue memory
         */
        CURRENT_DIALOGUE_MEMORY_KEY: string;
        /**
         * The key of the last dialogue added in the step memory
         */
        LAST_DIALOGUE_ADDED_IN_STEP_MEMORY_KEY: string;
        /**
         * The key of the current menu options memory
         */
        CURRENT_MENU_OPTIONS_MEMORY_KEY: string;
        /**
         * The key of the last menu options added in the step memory
         */
        LAST_MENU_OPTIONS_ADDED_IN_STEP_MEMORY_KEY: string;
        /**
         * The key of the characters memory
         */
        CHARACTER_CATEGORY_KEY: string;
        /**
         * The key of the flags memory
         */
        FLAGS_CATEGORY_KEY: string;
        /**
         * This variable is used to add the next dialog text into the current dialog memory.
         * This value was added to introduce Ink Glue functionality https://github.com/inkle/ink/blob/master/Documentation/WritingWithInk.md#glue
         */
        ADD_NEXT_DIALOG_TEXT_INTO_THE_CURRENT_DIALOG_FLAG_KEY: string;
    };
    /**
     * Set a variable in the storage
     * @param key The key of the variable
     * @param value The value of the variable. If undefined, the variable will be removed
     * @returns
     */
    static setVariable(key: string, value: StorageElementType): void;
    /**
     * Get a variable from the storage
     * @param key The key of the variable
     * @returns The value of the variable. If the variable does not exist, it will return undefined
     */
    static getVariable<T extends StorageElementType>(key: string): T | undefined;
    /**
     * Remove a variable from the storage
     * @param key The key of the variable
     * @returns
     */
    static removeVariable(key: string): void;
    /**
     * Clear the storage and the oidsUsed
     * @returns
     */
    static clear(): void;
    static exportJson(): string;
    static export(): ExportedStorage;
    static importJson(dataString: string): void;
    static import(data: object): void;
}

export { GameStorageManager as default };