import * as _angular_core from '@angular/core';
import { OnChanges, DoCheck, TemplateRef, PipeTransform } from '@angular/core';

declare const supportedLanguageCodes: readonly ["en", "it", "fr", "de", "es", "sl", "tr", "pl", "pt", "ru", "nb"];
type SupportedLanguageCode = typeof supportedLanguageCodes[number];
declare const defaultSupportedLanguageCode: SupportedLanguageCode;
interface NgxConfigDate {
    code: string;
    dayMonthYear: string;
    fullDate: string;
    hoursMinutes: string;
    monthYear: string;
    year: string;
}
declare const dateConfigMap: Record<SupportedLanguageCode, NgxConfigDate>;
declare enum NgxDateFormat {
    DAY_MONTH_YEAR = "DAY_MONTH_YEAR",
    FULL_DATE = "FULL_DATE",
    HOURS_MINUTES = "HOURS_MINUTES",
    MONTH_YEAR = "MONTH_YEAR",
    YEAR = "YEAR"
}
declare const fieldConfigDate: Record<NgxDateFormat, keyof NgxConfigDate>;
/**
 * Enum used to set the group event logic
 */
declare enum NgxTimelineEventGroup {
    YEAR = "YEAR",
    MONTH_YEAR = "MONTH_YEAR",
    DAY_MONTH_YEAR = "DAY_MONTH_YEAR"
}
declare const fieldsToAddEventGroup: Record<NgxTimelineEventGroup, string[]>;
declare const periodKeyDateFormat: Record<NgxTimelineEventGroup, NgxDateFormat>;
/**
 * Enum used to set the group event logic.
 */
declare enum NgxTimelineOrientation {
    HORIZONTAL = "HORIZONTAL",
    VERTICAL = "VERTICAL"
}
/**
 * Enum used to set the change side event logic.
 */
declare enum NgxTimelineEventChangeSide {
    ALL = "ALL",
    ALL_IN_GROUP = "ALL_IN_GROUP",
    ON_DIFFERENT_DAY_IN_GROUP = "ON_DIFFERENT_DAY_IN_GROUP",
    ON_DIFFERENT_HMS_IN_GROUP = "ON_DIFFERENT_HMS_IN_GROUP",
    ON_DIFFERENT_MONTH_IN_GROUP = "ON_DIFFERENT_MONTH_IN_GROUP"
}
declare const fieldsToCheckEventChangeSideInGroup: Partial<Record<NgxTimelineEventChangeSide, string[]>>;

/**
 * Event to be provided from outside the timeline.
 */
interface NgxTimelineEvent {
    timestamp: Date;
    title?: string;
    description?: string;
    id?: unknown;
    itemPosition?: NgxTimelineItemPosition;
}
interface NgxTimelinePeriodInfo {
    periodKey?: string;
    year?: number;
    month?: number;
    day?: number;
    firstDate?: Date;
}
/**
 * Item used inside the timeline.
 */
interface NgxTimelineItem {
    position?: NgxTimelineItemPosition.ON_LEFT | NgxTimelineItemPosition.ON_RIGHT;
    periodInfo?: NgxTimelinePeriodInfo;
    eventInfo?: NgxTimelineEvent;
}
declare enum NgxTimelineItemPosition {
    ON_LEFT = "ON_LEFT",
    ON_RIGHT = "ON_RIGHT"
}

declare class NgxTimelineComponent implements OnChanges, DoCheck {
    /**
     * List of events to be displayed.
     */
    readonly events: _angular_core.InputSignal<NgxTimelineEvent[]>;
    /**
     * Language code used to show the date formatted.
     */
    readonly langCode: _angular_core.InputSignal<"en" | "it" | "fr" | "de" | "es" | "sl" | "tr" | "pl" | "pt" | "ru" | "nb">;
    /**
     * Boolean used to enable or disable the animations.
     */
    readonly enableAnimation: _angular_core.InputSignal<boolean>;
    /**
     * Boolean used to reverse sort order (default older first).
     */
    readonly reverseOrder: _angular_core.InputSignal<boolean>;
    /**
     * Orientation of the timeline.
     */
    readonly orientation: _angular_core.InputSignal<NgxTimelineOrientation>;
    /**
     * Logic to be applied in order to group events.
     */
    readonly groupEvent: _angular_core.InputSignal<NgxTimelineEventGroup>;
    /**
     * Logic to be applied in order to put events on LEFT or RIGHT.
     */
    readonly changeSide: _angular_core.InputSignal<NgxTimelineEventChangeSide>;
    /**
     * Custom Template displayed before a group of events.
     */
    readonly periodCustomTemplate: _angular_core.InputSignal<TemplateRef<unknown> | undefined>;
    /**
     * Custom Template displayed to show a single event.
     */
    readonly eventCustomTemplate: _angular_core.InputSignal<TemplateRef<unknown> | undefined>;
    /**
     * Custom Template displayed to show a separator icon.
     */
    readonly centerIconCustomTemplate: _angular_core.InputSignal<TemplateRef<unknown> | undefined>;
    /**
     * Custom Template displayed to show the side date.
     */
    readonly dateInstantCustomTemplate: _angular_core.InputSignal<TemplateRef<unknown> | undefined>;
    /**
     * Custom Template displayed to show the inner event.
     */
    readonly innerEventCustomTemplate: _angular_core.InputSignal<TemplateRef<unknown> | undefined>;
    /**
     * Inner custom template used to display the event description.
     */
    readonly eventDescriptionCustomTemplate: _angular_core.InputSignal<TemplateRef<unknown> | undefined>;
    /**
     * Enable virtual scrolling, for rendering performance. Useful when rendering thousands of items.
     */
    readonly virtualScroll: _angular_core.InputSignal<boolean>;
    /**
     * The size of the items in the list (in pixels).
     */
    readonly virtualScrollItemSize: _angular_core.InputSignal<number>;
    /**
     * The number of pixels worth of buffer to render for when rendering new items. Defaults to 200px.
     */
    readonly virtualScrollMaxBufferPx: _angular_core.InputSignal<number>;
    /**
     * The minimum amount of buffer rendered beyond the viewport (in pixels).
     * If the amount of buffer dips below this number, more items will be rendered. Defaults to 100px.
     */
    readonly virtualScrollMinBufferPx: _angular_core.InputSignal<number>;
    /**
     * Output click event emitter.
     */
    readonly clickEmitter: _angular_core.OutputEmitterRef<NgxTimelineItem>;
    groups: Record<string, NgxTimelineEvent[]>;
    periods: NgxTimelineItem[];
    items: NgxTimelineItem[];
    ngxTimelineItemPosition: typeof NgxTimelineItemPosition;
    ngxTimelineOrientation: typeof NgxTimelineOrientation;
    ngxDateFormat: typeof NgxDateFormat;
    private differs;
    private iterableDiffer;
    private readonly separator;
    ngOnChanges(): void;
    ngDoCheck(): void;
    getPeriodKeyDateFormat(): string;
    protected clear(): void;
    protected groupEvents(events: NgxTimelineEvent[]): void;
    protected sortEvents(events: NgxTimelineEvent[]): void;
    protected setGroupsAndPeriods(events: NgxTimelineEvent[]): void;
    protected setItems(): void;
    protected addPeriodEvents(periodInfo: NgxTimelinePeriodInfo, onLeft: boolean): boolean;
    protected pushEventOnItems(event: NgxTimelineEvent, onLeft: boolean): void;
    /**
     * Compare the events inside the same group
     */
    protected compareEvents(prevEvent: NgxTimelineEvent, event: NgxTimelineEvent): boolean;
    protected compareEventsField(prevEvent: NgxTimelineEvent, event: NgxTimelineEvent, ...fields: string[]): boolean;
    protected getPeriodInfoFromPeriodKey(periodKey: string, firstGroupEvent: NgxTimelineEvent): NgxTimelinePeriodInfo;
    private getPeriodInfo;
    private shouldChangeEventsInPeriod;
    protected getPeriodKeyFromEvent(event: NgxTimelineEvent): string;
    getOrientationForVirtualScroll(): Lowercase<NgxTimelineOrientation.HORIZONTAL | NgxTimelineOrientation.VERTICAL>;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<NgxTimelineComponent, never>;
    static ɵcmp: _angular_core.ɵɵComponentDeclaration<NgxTimelineComponent, "ngx-timeline", never, { "events": { "alias": "events"; "required": true; "isSignal": true; }; "langCode": { "alias": "langCode"; "required": false; "isSignal": true; }; "enableAnimation": { "alias": "enableAnimation"; "required": false; "isSignal": true; }; "reverseOrder": { "alias": "reverseOrder"; "required": false; "isSignal": true; }; "orientation": { "alias": "orientation"; "required": false; "isSignal": true; }; "groupEvent": { "alias": "groupEvent"; "required": false; "isSignal": true; }; "changeSide": { "alias": "changeSide"; "required": false; "isSignal": true; }; "periodCustomTemplate": { "alias": "periodCustomTemplate"; "required": false; "isSignal": true; }; "eventCustomTemplate": { "alias": "eventCustomTemplate"; "required": false; "isSignal": true; }; "centerIconCustomTemplate": { "alias": "centerIconCustomTemplate"; "required": false; "isSignal": true; }; "dateInstantCustomTemplate": { "alias": "dateInstantCustomTemplate"; "required": false; "isSignal": true; }; "innerEventCustomTemplate": { "alias": "innerEventCustomTemplate"; "required": false; "isSignal": true; }; "eventDescriptionCustomTemplate": { "alias": "eventDescriptionCustomTemplate"; "required": false; "isSignal": true; }; "virtualScroll": { "alias": "virtualScroll"; "required": false; "isSignal": true; }; "virtualScrollItemSize": { "alias": "virtualScrollItemSize"; "required": false; "isSignal": true; }; "virtualScrollMaxBufferPx": { "alias": "virtualScrollMaxBufferPx"; "required": false; "isSignal": true; }; "virtualScrollMinBufferPx": { "alias": "virtualScrollMinBufferPx"; "required": false; "isSignal": true; }; }, { "clickEmitter": "clickEmitter"; }, never, never, true, never>;
}

declare class NgxTimelineEventComponent {
    /**
     * Event to be displayed.
     */
    readonly event: _angular_core.InputSignal<NgxTimelineItem>;
    /**
     * Event position respect to the vertical line (LEFT or RIGHT).
     */
    readonly colSidePosition: _angular_core.InputSignal<NgxTimelineItemPosition | undefined>;
    /**
     * Language code used to format the dates.
     */
    readonly langCode: _angular_core.InputSignal<"en" | "it" | "fr" | "de" | "es" | "sl" | "tr" | "pl" | "pt" | "ru" | "nb">;
    /**
     * Inner custom template used to display the event detail.
     */
    readonly innerEventCustomTemplate: _angular_core.InputSignal<TemplateRef<unknown> | undefined>;
    /**
     * Inner custom template used to display the event description.
     */
    readonly eventDescriptionCustomTemplate: _angular_core.InputSignal<TemplateRef<unknown> | undefined>;
    /**
     * Boolean used to enable or disable the animations.
     */
    readonly enableAnimation: _angular_core.InputSignal<boolean>;
    /**
     * Orientation of the timeline.
     */
    readonly orientation: _angular_core.InputSignal<NgxTimelineOrientation>;
    /**
     * Output click event emitter.
     */
    readonly clickEmitter: _angular_core.OutputEmitterRef<NgxTimelineItem>;
    ngxTimelineItemPosition: typeof NgxTimelineItemPosition;
    ngxTimelineOrientation: typeof NgxTimelineOrientation;
    readonly dateObjSignal: _angular_core.Signal<{
        day: unknown;
        month: unknown;
        year: unknown;
    } | null>;
    private readonly monthAbbr;
    private readonly dayFormat;
    getDateObj(): {
        day: unknown;
        month: unknown;
        year: unknown;
    };
    protected getLangCode(): SupportedLanguageCode;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<NgxTimelineEventComponent, never>;
    static ɵcmp: _angular_core.ɵɵComponentDeclaration<NgxTimelineEventComponent, "ngx-timeline-event", never, { "event": { "alias": "event"; "required": true; "isSignal": true; }; "colSidePosition": { "alias": "colSidePosition"; "required": false; "isSignal": true; }; "langCode": { "alias": "langCode"; "required": false; "isSignal": true; }; "innerEventCustomTemplate": { "alias": "innerEventCustomTemplate"; "required": false; "isSignal": true; }; "eventDescriptionCustomTemplate": { "alias": "eventDescriptionCustomTemplate"; "required": false; "isSignal": true; }; "enableAnimation": { "alias": "enableAnimation"; "required": false; "isSignal": true; }; "orientation": { "alias": "orientation"; "required": false; "isSignal": true; }; }, { "clickEmitter": "clickEmitter"; }, never, never, true, never>;
}

declare class NgxDatePipe implements PipeTransform {
    transform(date: Date | string, dateFormat?: NgxDateFormat | string, langCode?: SupportedLanguageCode): string | null;
    private dateFormat;
    private getDateConfig;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<NgxDatePipe, never>;
    static ɵpipe: _angular_core.ɵɵPipeDeclaration<NgxDatePipe, "ngxdate", true>;
}

declare class NgxTimelineModule {
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<NgxTimelineModule, never>;
    static ɵmod: _angular_core.ɵɵNgModuleDeclaration<NgxTimelineModule, never, [typeof NgxDatePipe, typeof NgxTimelineComponent, typeof NgxTimelineEventComponent], [typeof NgxDatePipe, typeof NgxTimelineComponent]>;
    static ɵinj: _angular_core.ɵɵInjectorDeclaration<NgxTimelineModule>;
}

export { NgxDateFormat, NgxDatePipe, NgxTimelineComponent, NgxTimelineEventChangeSide, NgxTimelineEventComponent, NgxTimelineEventGroup, NgxTimelineItemPosition, NgxTimelineModule, NgxTimelineOrientation, dateConfigMap, defaultSupportedLanguageCode, fieldConfigDate, fieldsToAddEventGroup, fieldsToCheckEventChangeSideInGroup, periodKeyDateFormat, supportedLanguageCodes };
export type { NgxConfigDate, NgxTimelineEvent, NgxTimelineItem, NgxTimelinePeriodInfo, SupportedLanguageCode };