import type { AellaFilterDefinition } from './filter-bar.models';
import * as i0 from "@angular/core";
/**
 * FilterBarStore - Local state management for filter-bar component
 *
 * Implements copy-on-write pattern:
 * - Creates a working copy (draft) of input filters
 * - Each field holds its own model state
 * - Changes only apply to draft until explicitly committed
 * - Cancel restores original state without affecting parent
 *
 * Data Flow:
 * 1. Parent provides [aellaFilters] input → Store creates draft copy
 * 2. User edits filters → Draft state updates
 * 3. User clicks Apply → Draft commits to parent via output event
 * 4. User clicks Cancel → Draft resets to original state
 */
export declare class FilterBarStore {
    private readonly _originalFilters;
    private readonly _draftFilters;
    private readonly _modifiedFields;
    readonly originalFilters: import("@angular/core").Signal<AellaFilterDefinition[]>;
    readonly draftFilters: import("@angular/core").Signal<AellaFilterDefinition[]>;
    readonly modifiedFields: import("@angular/core").Signal<Set<string>>;
    readonly hasChanges: import("@angular/core").Signal<boolean>;
    readonly getDraftFilter: import("@angular/core").Signal<(field: string) => AellaFilterDefinition | undefined>;
    readonly isFieldModified: import("@angular/core").Signal<(field: string) => boolean>;
    /**
     * Initialize store with filters from parent component
     * Creates deep copy to prevent mutation of original
     */
    setOriginalFilters(filters: AellaFilterDefinition[]): void;
    /**
     * Update a draft filter's included values
     *
     * For range filters: Accepts nested array format:
     *   - [[from, to]] = range only
     *   - [[from, to], discrete1, discrete2, ...] = range + discrete values
     *   - [value1, value2, ...] = discrete values only
     *
     * For other filters: All values go into included array as-is
     * Marks field as modified
     */
    updateFilterIncluded(field: string, included: (string | number | boolean | [number, number] | [string, string])[]): void;
    /**
     * Update a draft filter's excluded values
     * For range filters: All values are discrete excluded values (range can't be excluded)
     * For other filters: All values go into excluded array
     * Marks field as modified
     */
    updateFilterExcluded(field: string, excluded: (string | number | boolean)[]): void;
    /**
     * Update a draft filter's range values (from/to)
     * Used for number-range and number-range-slider filters
     * Encodes range as [[from, to], ...existingDiscreteValues]
     */
    updateFilterRange(field: string, from: number, to: number): void;
    /**
     * Update entire draft filter with new model
     * Used when FilterChipComponent emits complete updated filter
     */
    updateDraftFilter(updatedFilter: AellaFilterDefinition): void;
    /**
     * Add a new draft filter
     * Used when user adds a filter via property selector
     */
    addDraftFilter(filter: AellaFilterDefinition): void;
    /**
     * Remove a draft filter
     * Marks field as modified
     */
    removeDraftFilter(field: string): void;
    /**
     * Reset draft state to original
     * Used on Cancel - discards all changes
     */
    resetDraft(): void;
    /**
     * Get list of modified filters for applying changes
     * Returns only filters that have been changed
     */
    getModifiedFilters(): AellaFilterDefinition[];
    /**
     * Get all draft filters (for full state replacement)
     */
    getAllDraftFilters(): AellaFilterDefinition[];
    /**
     * Clear all modifications after successful apply
     * Syncs original state to draft state
     */
    commitChanges(): void;
    /**
     * Deep clone a single filter
     */
    private _deepCloneFilter;
    /**
     * Deep clone array of filters
     */
    private _deepCloneFilters;
    static ɵfac: i0.ɵɵFactoryDeclaration<FilterBarStore, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FilterBarStore>;
}