import { Book, Section, TextBlock, TextBlockType, TOCItem } from './types';
import { SectionIndexLookup } from './toc';
export type ReadableContentUnitKind = 'section' | 'page';
export type ReadableContentBlockType = TextBlockType | 'page';
export interface ReadableContentUnit {
    index: number;
    id: string | number;
    kind: ReadableContentUnitKind;
    title?: string;
    href?: string;
    sectionIndex?: number;
    pageIndex?: number;
    size?: number;
    linear?: string;
    format?: string;
}
export interface ReadableContentBlock {
    id?: string;
    type: ReadableContentBlockType;
    text: string;
    sourceBlock?: TextBlock;
}
export interface ReadableContent {
    unit: ReadableContentUnit;
    text: string;
    blocks?: ReadableContentBlock[];
    charCount: number;
}
export interface ReadableContentCitation {
    label: string;
    href: string;
    unitIndex: number;
    unitId: string | number;
    unitKind: ReadableContentUnitKind;
    sectionIndex?: number;
    pageIndex?: number;
    blockId?: string;
    blockType?: string;
}
export interface ReadableContentOptions {
    includeBlocks?: boolean;
}
interface ReadableContentIndex {
    readonly sections: readonly Section[];
    readonly toc: readonly TOCItem[] | undefined;
    readonly units: ReadableContentUnit[];
    readonly sectionLookup: SectionIndexLookup;
}
export declare function getReadableContentUnits(book: Book): ReadableContentUnit[];
export declare function getReadableContentIndex(book: Book): ReadableContentIndex;
export declare function getReadableContentUnitCount(book: Book): number;
export declare function clampReadableContentUnitIndex(book: Book, index: number): number;
export declare function getReadableContentUnit(book: Book, index: number): ReadableContentUnit | undefined;
export declare function resolveReadableContentUnitIndex(book: Book, href: string): number | undefined;
export declare function getReadableContent(book: Book, unitIndex: number, options?: ReadableContentOptions): Promise<ReadableContent>;
export declare function getReadableContentText(book: Book, unitOrIndex: ReadableContentUnit | number): Promise<string>;
export declare function getReadableContentBlocks(book: Book, unitOrIndex: ReadableContentUnit | number): Promise<ReadableContentBlock[]>;
export declare function getSectionReadableText(section: Section): Promise<string>;
export declare function createReadableContentCitation(unit: ReadableContentUnit, block?: ReadableContentBlock): ReadableContentCitation;
export {};
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