import { LitElement, PropertyValues } from 'lit';
import type { RuleGroupType, QueryField, QueryBuilderSize } from './defs/types';
import './queryBuilderGroup';
import './queryBuilderRule';
/**
 * Query Builder component.
 * A visual query builder for constructing complex filter conditions.
 *
 * @fires on-query-change - Emits when the query changes. `detail: { query: RuleGroupType }`
 * @slot header - Slot for custom header content
 *
 * @example
 * ```html
 * <kyn-query-builder
 *   .fields=${[
 *     { name: 'firstName', label: 'First Name', dataType: 'text' },
 *     { name: 'age', label: 'Age', dataType: 'number' },
 *     { name: 'status', label: 'Status', dataType: 'select', values: [
 *       { value: 'active', label: 'Active' },
 *       { value: 'inactive', label: 'Inactive' },
 *     ]},
 *   ]}
 *   @on-query-change=${(e) => console.log(e.detail.query)}
 * ></kyn-query-builder>
 * ```
 */
export declare class QueryBuilder extends LitElement {
    static styles: import("lit").CSSResult;
    /** The query data structure */
    accessor query: RuleGroupType;
    /** Available fields to query */
    accessor fields: QueryField[];
    /** Available combinators
     * @internal
     */
    private get _combinators();
    /** Show clone button on rules/groups */
    accessor showCloneButtons: boolean;
    /** Show lock/disable button on rules/groups */
    accessor showLockButtons: boolean;
    /** Maximum nesting depth (default: unlimited) */
    accessor maxDepth: number;
    /** Disable drag-and-drop reordering */
    accessor disableDragAndDrop: boolean;
    /** Disable the entire query builder */
    accessor disabled: boolean;
    /** Size of all child components (buttons, inputs, dropdowns, datepickers) */
    accessor size: QueryBuilderSize;
    /**
     * Minimum number of dropdown options before a search input is shown.
     * Applies to field, value, and multi-select dropdowns within rules.
     * When `0`, search is always shown. Default `25`.
     */
    accessor searchThreshold: number;
    /** Text string customization for i18n. */
    accessor textStrings: {
        and: string;
        or: string;
        removeGroup: string;
        cloneGroup: string;
        addRule: string;
        addGroup: string;
        lockGroup: string;
        unlockGroup: string;
        removeRule: string;
        cloneRule: string;
        lockRule: string;
        unlockRule: string;
        dragToReorder: string;
        selectField: string;
        selectOperator: string;
        value: string;
        selectValue: string;
        selectValues: string;
        selectDate: string;
        selectDateTime: string;
        selectTime: string;
        min: string;
        max: string;
        start: string;
        end: string;
        from: string;
        to: string;
        validationErrors: string;
        validationErrorCount: string;
    };
    /** Internal query state for tracking changes
     * @internal
     */
    accessor _internalQuery: RuleGroupType;
    /** Internal text strings.
     * @internal
     */
    accessor _textStrings: {
        and: string;
        or: string;
        removeGroup: string;
        cloneGroup: string;
        addRule: string;
        addGroup: string;
        lockGroup: string;
        unlockGroup: string;
        removeRule: string;
        cloneRule: string;
        lockRule: string;
        unlockRule: string;
        dragToReorder: string;
        selectField: string;
        selectOperator: string;
        value: string;
        selectValue: string;
        selectValues: string;
        selectDate: string;
        selectDateTime: string;
        selectTime: string;
        min: string;
        max: string;
        start: string;
        end: string;
        from: string;
        to: string;
        validationErrors: string;
        validationErrorCount: string;
    };
    willUpdate(changedProps: PropertyValues): void;
    render(): import("lit-html").TemplateResult<1>;
    private _renderValidationSummary;
    /**
     * Recursively collect all validation errors from the query tree
     */
    private _collectValidationErrors;
    private _handleGroupChange;
    private _handleGroupLock;
    private _emitQueryChange;
    /**
     * get the current query
     */
    getQuery(): RuleGroupType;
    /**
     * set the query programmatically
     */
    setQuery(query: RuleGroupType): void;
    /**
     * reset the query to initial empty state
     */
    resetQuery(): void;
    /**
     * handle drag-and-drop move events
     */
    private _handleItemMove;
    /**
     * get a group at a specific path in the query tree
     */
    private _getGroupAtPath;
    private _normalizeQuery;
    private _cloneQuery;
    private _getMaxGroupDepth;
}
declare global {
    interface HTMLElementTagNameMap {
        'kyn-query-builder': QueryBuilder;
    }
}
//# sourceMappingURL=queryBuilder.d.ts.map