/**
 * @module WebRChan
 */
import { Message } from './chan/message';
import { UUID as ShelterID } from './chan/task-common';
import { EmPtr } from './emscripten';
import { WebRPayloadWorker, WebRPayloadPtr } from './payload';
import { RType, WebRData } from './robj';
import type { FSType, FSMountOptions } from './webr-main';
export { isUUID as isShelterID, UUID as ShelterID } from './chan/task-common';
/** @internal */
export interface CallRObjectMethodMessage extends Message {
    type: 'callRObjectMethod';
    data: {
        payload?: WebRPayloadPtr;
        prop: string;
        args: WebRPayloadWorker[];
        shelter?: ShelterID;
    };
}
/**
 * The configuration settings used when installing R packages.
 */
export interface InstallPackagesOptions {
    /**
     * The R package repository from which to download packages.
     * Default: The configured default webR package repository.
     */
    repos?: string;
    /**
     * If `true`, do not output downloading messages.
     * Default: `false`.
     */
    quiet?: boolean;
    /**
     * If `true`, attempt to mount packages using filesystem images.
     * Default: `true`.
     */
    mount?: boolean;
}
/** @internal */
export interface InstallPackagesMessage extends Message {
    type: 'installPackage';
    data: {
        name: string;
        options: InstallPackagesOptions;
    };
}
/**
 * The configuration settings used when evaluating R code.
 */
export interface EvalROptions {
    /**
     * The R environment to evaluate within.
     * Default: The global environment.
     */
    env?: WebRData;
    /**
     * Should the stdout and stderr output streams be captured and returned?
     * Default: `true`.
     */
    captureStreams?: boolean;
    /**
     * Should conditions raised during execution be captured and returned?
     * Default: `true`.
     */
    captureConditions?: boolean;
    /**
     * Should the code automatically print output as if it were written at an R console?
     * Default: `false`.
     */
    withAutoprint?: boolean;
    /**
     * Should an R error condition be re-thrown as a JavaScript exception?
     * Default: `true`.
     */
    throwJsException?: boolean;
    /**
     * Should the code be executed using a `tryCatch` with handlers in place?
     * Default: `true`.
     */
    withHandlers?: boolean;
}
/** @internal */
export interface CaptureRMessage extends Message {
    type: 'captureR';
    data: {
        code: string;
        options: EvalROptions;
        shelter: ShelterID;
    };
}
/** @internal */
export interface EvalRMessage extends Message {
    type: 'evalR';
    data: {
        code: string;
        options: EvalROptions;
        shelter: ShelterID;
        outputType?: EvalRMessageOutputType;
    };
}
export type EvalRMessageOutputType = 'void' | 'boolean' | 'boolean[]' | 'number' | 'number[]' | 'string' | 'string[]';
/** @internal */
export interface EvalRMessageRaw extends Message {
    type: 'evalRRaw';
    data: {
        code: string;
        options: EvalROptions;
        outputType: EvalRMessageOutputType;
    };
}
/** @internal */
export interface FSMessage extends Message {
    type: 'lookupPath' | 'mkdir' | 'rmdir' | 'unlink' | 'unmount';
    data: {
        path: string;
    };
}
/** @internal */
export interface FSMountMessage extends Message {
    type: 'mount';
    data: {
        type: FSType;
        options: FSMountOptions;
        mountpoint: string;
    };
}
/** @internal */
export interface FSReadFileMessage extends Message {
    type: 'readFile';
    data: {
        path: string;
        flags?: string;
    };
}
/** @internal */
export interface FSWriteFileMessage extends Message {
    type: 'writeFile';
    data: {
        path: string;
        data: ArrayBufferView;
        flags?: string;
    };
}
/** @internal */
export interface InvokeWasmFunctionMessage extends Message {
    type: 'invokeWasmFunction';
    data: {
        ptr: EmPtr;
        args: number[];
    };
}
/** @internal */
export interface NewRObjectMessage extends Message {
    type: 'newRObject';
    data: {
        obj: WebRData;
        objType: RType | 'object';
        shelter: ShelterID;
    };
}
/** @internal */
export interface NewShelterMessage extends Message {
    type: 'newShelter';
}
/** @internal */
export interface ShelterMessage extends Message {
    type: 'shelterPurge' | 'shelterSize';
    data: ShelterID;
}
/** @internal */
export interface ShelterDestroyMessage extends Message {
    type: 'shelterDestroy';
    data: {
        id: ShelterID;
        obj: WebRPayloadPtr;
    };
}
export interface CanvasMessage extends Message {
    type: 'canvas';
    data: {
        event: 'canvasNewPage';
    } | {
        event: 'canvasImage';
        image: ImageBitmap;
    };
}
export interface PagerMessage extends Message {
    type: 'pager';
    data: {
        path: string;
        header: string;
        title: string;
        deleteFile: boolean;
    };
}