import LazyFactoryMap from '../lazyFactoryMap';
/**
 * The column meta object is a root of all settings defined in the column property of the Handsontable
 * settings. Each column in the Handsontable is associated with a unique meta object which is managed by
 * this layer. Adding, removing, or changing property in that object has a direct reflection only for
 * the CellMeta layer. The reflection will be visible only if the property doesn't exist in the lower
 * layers (prototype lookup).
 *
 * +-------------+.
 * │ GlobalMeta  │
 * │ (prototype) │
 * +-------------+\
 *       │         \
 *       │          \
 *      \│/         _\|
 * +-------------+    +-------------+.
 * │ TableMeta   │    │ ColumnMeta  │
 * │ (instance)  │    │ (prototype) │
 * +-------------+    +-------------+.
 *                         │
 *                         │
 *                        \│/
 *                    +-------------+.
 *                    │  CellMeta   │
 *                    │ (instance)  │
 *                    +-------------+.
 */
export default class ColumnMeta {
    /**
     * Reference to the GlobalMeta layer. While creating new column meta objects, all new objects
     * inherit properties from the GlobalMeta layer.
     *
     * @type {GlobalMeta}
     */
    globalMeta: {
        getMetaConstructor(): Function;
    };
    /**
     * The LazyFactoryMap structure, holder for column meta objects where each column meta is
     * stored under the physical column index.
     *
     * @type {LazyFactoryMap}
     */
    metas: LazyFactoryMap<Record<string, unknown>>;
    /**
     * Initializes the column meta layer with a reference to the GlobalMeta layer and sets up the lazy map for per-column meta objects.
     */
    constructor(globalMeta: {
        getMetaConstructor(): Function;
    });
    /**
     * Updates column meta object by merging settings with the current state.
     *
     * @param {number} physicalColumn The physical column index which points what column meta object is updated.
     * @param {object} settings An object to merge with.
     */
    updateMeta(physicalColumn: number, settings: Record<string, unknown>): void;
    /**
     * Creates one or more columns at specific position.
     *
     * @param {number} physicalColumn The physical column index which points from what position the column is added.
     * @param {number} amount An amount of columns to add.
     */
    createColumn(physicalColumn: number, amount: number): void;
    /**
     * Removes one or more columns from the collection.
     *
     * @param {number} physicalColumn The physical column index which points from what position the column is removed.
     * @param {number} amount An amount columns to remove.
     */
    removeColumn(physicalColumn: number, amount: number): void;
    /**
     * Gets settings object for this layer.
     *
     * @param {number} physicalColumn The physical column index.
     * @returns {object}
     */
    getMeta(physicalColumn: number): Record<string, unknown>;
    /**
     * Gets constructor of the column meta object. Necessary for inheritance - creating the next meta layers.
     *
     * @param {number} physicalColumn The physical column index.
     * @returns {Function}
     */
    getMetaConstructor(physicalColumn: number): Function;
    /**
     * Clears all saved column meta objects.
     */
    clearCache(): void;
    /**
     * Creates and returns new column meta object with properties inherited from the global meta layer.
     *
     * @private
     * @returns {object}
     */
    _createMeta(): Record<string, unknown>;
}