import type { GridSortModel, GridFilterModel, GridColDef, GridRowModel, GridPaginationModel } from '.';
export interface GridGetRowsParams {
    sortModel: GridSortModel;
    filterModel: GridFilterModel;
    /**
     * Alternate to `start` and `end`, maps to `GridPaginationModel` interface.
     */
    paginationModel: GridPaginationModel;
    /**
     * First row index to fetch (number) or cursor information (number | string).
     */
    start: number | string;
    /**
     * Last row index to fetch.
     */
    end: number;
    /**
     * List of grouped columns (only applicable with `rowGrouping`).
     */
    groupFields?: GridColDef['field'][];
    /**
     * Array of keys returned by `getGroupKey` of all the parent rows until the row for which the data is requested
     * `getGroupKey` prop must be implemented to use this.
     * Useful for `treeData` and `rowGrouping` only.
     */
    groupKeys?: string[];
}
export interface GridGetRowsResponse {
    rows: GridRowModel[];
    /**
     * To reflect updates in total `rowCount` (optional).
     * Useful when the `rowCount` is inaccurate (for example when filtering) or not available upfront.
     */
    rowCount?: number;
    /**
     * Additional `pageInfo` for advanced use-cases.
     * `hasNextPage`: When row count is unknown/estimated, `hasNextPage` will be used to check if more records are available on server.
     */
    pageInfo?: {
        hasNextPage?: boolean;
        nextCursor?: string;
    };
}
export interface GridDataSource {
    /**
     * This method will be called when the grid needs to fetch some rows.
     * @param {GridGetRowsParams} params The parameters required to fetch the rows.
     * @returns {Promise<GridGetRowsResponse>} A promise that resolves to the data of type [GridGetRowsResponse].
     */
    getRows(params: GridGetRowsParams): Promise<GridGetRowsResponse>;
    /**
     * This method will be called when the user updates a row [Not yet implemented].
     * @param {GridRowModel} updatedRow The updated row.
     * @returns {Promise<any>} If resolved (synced on the backend), the grid will update the row and mutate the cache.
     */
    updateRow?(updatedRow: GridRowModel): Promise<any>;
    /**
     * Used to group rows by their parent group. Replaces `getTreeDataPath` used in client side tree-data.
     * @param {GridRowModel} row The row to get the group key of.
     * @returns {string} The group key for the row.
     */
    getGroupKey?: (row: GridRowModel) => string;
    /**
     * Used to determine the number of children a row has on server.
     * @param {GridRowModel} row The row to check the number of children.
     * @returns {number} The number of children the row has.
     * If the children count is not available for some reason, but there are some children, `getChildrenCount` should return `-1`.
     */
    getChildrenCount?: (row: GridRowModel) => number;
}
export interface GridDataSourceCache {
    /**
     * Set the cache entry for the given key.
     * @param {GridGetRowsParams} key The key of type `GridGetRowsParams`.
     * @param {GridGetRowsResponse} value The value to be stored in the cache.
     */
    set: (key: GridGetRowsParams, value: GridGetRowsResponse) => void;
    /**
     * Get the cache entry for the given key.
     * @param {GridGetRowsParams} key The key of type `GridGetRowsParams`.
     * @returns {GridGetRowsResponse} The value stored in the cache.
     */
    get: (key: GridGetRowsParams) => GridGetRowsResponse | undefined;
    /**
     * Clear the cache.
     */
    clear: () => void;
}