import { LinkedList, LinkedNode } from '../../shared/linkList.js';
import Base, { BaseLayerProps } from '../BaseLayer/index.js';
import { GroupLayer } from '../GroupLayer/index.js';
import { ElementType } from '../type.js';

type Range = {
    start: number;
    end: number;
};
type TrackLayerProps = {
    uuid?: string;
    audioGain?: number;
    trackType: TrackType;
    layerId?: number;
    trimRange?: Range;
} & BaseLayerProps;
/**
 * 轨道类型
 * - video  视频
 * - audio  音频
 * - image  图像
 * - caption 字幕
 * - text   文本
 * - sticker 贴纸
 * - effect 特效
 */
type TrackType = 'video' | 'audio' | 'image' | 'caption' | 'text' | 'sticker' | 'effect' | string;
interface TrackLayerType {
    /**
     * 轨道类型
     */
    trackType: TrackType;
    /**
     * 轨道中的元素
     */
    children: LinkedList<ElementType>;
    /**
     * 轨道总时长
     */
    daration: number;
    /**
     * 父容器
     */
    parent: GroupLayer;
    /**
     * 获取轨道的元素
     */
    getElement(uuid: string): LinkedNode<ElementType> | null;
    /**
     * 插入元素到轨道 插入index前
     * @param type 元素类型
     */
    insertElement(element: ElementType, index: number): void;
    pushElement(element: ElementType): void;
    /**
     * 删除元素
     * @param uuid 元素唯一标识
     */
    deleteElement(uuid: string): void;
    /**
     * 移动元素
     * @param uuid 源元素唯一标识
     * @param toIndex 目标索引
     */
    moveElement(uuid: string, toIndex: number): void;
    /**
     * 设置引擎合成
     */
    setComp(): void;
    /**
     * 设置引擎裁剪
     */
    setTrimRange(range: Range, callBack?: () => void): void;
    /**
     * 恢复默认裁剪
     */
    resetTrimRange(callBack?: () => void): void;
}
declare class TrackLayer extends Base implements TrackLayerType {
    trackType: TrackType;
    children: LinkedList<ElementType>;
    daration: number;
    parent: GroupLayer;
    trimRange: Range | undefined;
    constructor(namespace: string, props: TrackLayerProps);
    setComp(): void;
    /**
     * 设置裁剪范围
     */
    setTrimRange(range: Range): void;
    /**
     * 恢复默认裁剪
     */
    resetTrimRange(): void;
    getElement(uuid: any): LinkedNode<ElementType> | null;
    insertElement(element: ElementType, index: number): void;
    pushElement(element: ElementType): void;
    deleteElement(uuid: string): void;
    moveElement(uuid: string, toIndex: number): void;
    removeAll(): void;
    /**
     * 获取草稿
     */
    getLayerDraft(): TrackLayerProps;
    duplicate(): TrackLayer;
}

export { TrackLayer };
export type { TrackLayerProps, TrackLayerType, TrackType };