import { BasePluginConfig, EventHook } from '@embedpdf/core';
import { ImageConversionTypes, PdfErrorReason, PdfPageObject, Rect, Rotation, Task } from '@embedpdf/models';
import { PageVisibilityMetrics } from '@embedpdf/plugin-scroll';
export interface TilingPluginConfig extends BasePluginConfig {
    tileSize: number;
    overlapPx: number;
    extraRings: number;
    /**
     * Optional image type override for tile rendering.
     * When omitted, tile rendering falls back to the render plugin defaults.
     */
    defaultImageType?: ImageConversionTypes;
}
export interface VisibleRect {
    pageX: number;
    pageY: number;
    visibleWidth: number;
    visibleHeight: number;
}
export type TileStatus = 'queued' | 'rendering' | 'ready';
export interface Tile {
    status: TileStatus;
    screenRect: Rect;
    pageRect: Rect;
    isFallback: boolean;
    srcScale: number;
    col: number;
    row: number;
    id: string;
}
export interface TilingDocumentState {
    visibleTiles: Record<number, Tile[]>;
}
export interface TilingState {
    documents: Record<string, TilingDocumentState>;
}
export interface TilingEvent {
    documentId: string;
    tiles: Record<number, Tile[]>;
}
export interface TilingScope {
    renderTile: (options: RenderTileOptions) => Task<Blob, PdfErrorReason>;
    onTileRendering: EventHook<Record<number, Tile[]>>;
}
export interface TilingCapability {
    renderTile: (options: RenderTileOptions, documentId?: string) => Task<Blob, PdfErrorReason>;
    forDocument(documentId: string): TilingScope;
    onTileRendering: EventHook<TilingEvent>;
}
export interface CalculateTilesForPageOptions {
    tileSize: number;
    overlapPx: number;
    extraRings: number;
    scale: number;
    rotation: Rotation;
    page: PdfPageObject;
    metric: PageVisibilityMetrics;
}
export interface RenderTileOptions {
    pageIndex: number;
    tile: Tile;
    dpr: number;
    /**
     * Optional image type override for this tile render.
     * Falls back to the tiling plugin config, then to the render plugin default.
     */
    imageType?: ImageConversionTypes;
}