/**
 * Platform-neutral reading locations.
 *
 * Renderers keep their native coordinate systems, while annotations,
 * selections, sync, and AI overlays can depend on this common shape.
 */
export declare const REBOOK_LOCATION_MODEL_VERSION = 1;
export interface Rect {
    readonly x: number;
    readonly y: number;
    readonly width: number;
    readonly height: number;
}
export type BookLocation = {
    readonly type: 'fixed';
    readonly format?: string;
    readonly pageIndex: number;
    readonly rect?: Rect;
} | {
    readonly type: 'reflowable';
    readonly sectionIndex: number;
    readonly href?: string;
    readonly cfi?: string;
    readonly blockId?: string;
    readonly offset?: number;
} | {
    readonly type: 'image';
    readonly pageIndex: number;
    readonly rect?: Rect;
} | {
    readonly type: 'text';
    readonly sectionIndex: number;
    readonly offset: number;
};
export interface BookRange {
    readonly start: BookLocation;
    readonly end?: BookLocation;
}
export type BookPosition = BookLocation | BookRange;
export interface ReflowableTextRange {
    readonly sectionIndex: number;
    readonly blockId?: string;
    readonly startOffset?: number;
    readonly endOffset?: number;
    readonly offsetsReliable?: boolean;
}
export interface BookSelection {
    readonly range: BookRange;
    readonly text?: string;
    readonly rects?: readonly Rect[];
}
export interface TextChunk {
    readonly id?: string;
    readonly text: string;
    readonly location?: BookLocation;
    readonly rects?: readonly Rect[];
}
export interface TextSearchResult {
    readonly chunk: TextChunk;
    readonly range: BookRange;
    readonly score?: number;
}
export interface TextProvider {
    getText(range?: BookRange): Promise<readonly TextChunk[]> | readonly TextChunk[];
    search?(query: string, range?: BookRange): Promise<readonly TextSearchResult[]> | readonly TextSearchResult[];
    getSelection?(): Promise<BookSelection | null> | BookSelection | null;
}
export interface Annotation {
    readonly id: string;
    readonly bookId?: string;
    readonly location: BookPosition;
    readonly quote?: string;
    readonly note?: string;
    readonly color?: string;
    readonly createdAt: number;
    readonly updatedAt?: number;
    readonly data?: Readonly<Record<string, unknown>>;
}
export declare function isBookRange(value: BookPosition): value is BookRange;
export declare function getBookPositionLocations(position: BookPosition): readonly BookLocation[];
export declare function getFixedPositionRects(position: BookPosition, options: {
    readonly format: string;
    readonly pageIndex: number;
}): Rect[];
export declare function bookPositionMatchesReflowableRange(position: BookPosition, range: ReflowableTextRange): boolean;
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