import { type IframeMessenger } from "./iframe-messenger.js";
/**
 * Access extension-specific services, e.g. registered endpoints and cloud storage.
 *
 * @remarks
 * Available via {@link auto.Forma | Forma}.{@link index.EmbeddedViewSdk.extensions | extensions}.
 */
export declare class ExtensionsApi {
    #private;
    readonly storage: ExtensionsStorageApi;
    /** @hidden */
    constructor(iframeMessenger: IframeMessenger);
    /**
     * Invoke an extension-specific endpoint.
     *
     * Requires edit access. See {@link EmbeddedViewSdk.getCanEdit | getCanEdit} for more info.
     *
     * @typeParam T - Type of data returned by endpoint.
     *
     * @returns The data returned by the endpoint.
     *
     * @throws {@link index.RequestError | RequestError} with type set to `invoke-endpoint-unsuccessful` if
     * the endpoint returns an unsuccesful status code. The data field of RequestError will be an
     * object with the fields `status`, `statusText`, `contentType` and `body` (string). If you
     * return JSON errors from your API you can parse the body field after checking the status
     * and content type.
     */
    invokeEndpoint<T>(request: {
        /**
         * Authcontext to use with the request.
         *
         * As of now, the currently open project id is both default
         * and only allowed value.
         */
        authcontext?: string | undefined;
        /** Id of the extension to invoke the endpoint for. */
        extensionId: string;
        /** Id of the endpoint to invoke, as registered in the extension. */
        endpointId: string;
        /** Payload to send to the endpoint. */
        payload: unknown;
    }): Promise<T>;
}
/**
 * A string of metadata that can be stored on the object
 *
 * Can often be useful when storing binary data or png's
 * and you need to add some additional context on that particular object,
 * for example parameters that was used in an analysis calculation
 * that can remove unnecessary computation later
 *
 * NOTE: This will be returned in a specific HTTP header when fetching the object and is
 * restricted to 1kb in size.
 */
export type StorageObjectMetadata = string;
export type StorageObjectAsText = {
    data: string;
    metadata?: StorageObjectMetadata | undefined;
};
export type StorageObject = {
    data: ArrayBuffer;
    metadata?: StorageObjectMetadata | undefined;
};
export type StorageListObject = {
    /**
     * Name of the object
     */
    key: string;
    /**
     * Last modified date string in ISO 8601 format
     */
    lastModified: string;
    /**
     * size of the object
     */
    size: number;
    /**
     * Temporary presigned url to fetch the object
     */
    tempGetObjectUrl: string;
    /**
     * Expiry time for tempGetObjectUrl as date string in ISO 8601 format
     */
    tempGetObjectExpiry: string;
};
/**
 * Extension storage provides a way for extension authors to save data in a given authcontext
 * which the extension is installed for without needing their own storage layer.
 *
 * Any data can be stored and fetched directly via the SDK. Data is stored in
 * AWS S3 and accessed using presigned URLs. This way we only act as a proxy for
 * generating the presigned links without ever having an opinion on what data is
 * actually stored.
 *
 * NOTE: Even though extension authors can write data on behalf of a user in a specific context, it's
 * still the user who owns the data, and can they can access it without going through the extension
 * itself.
 *
 * @see https://aws.amazon.com/s3/
 *
 * @remarks
 * Available via {@link auto.Forma | Forma}.{@link index.EmbeddedViewSdk.extensions | extensions}.{@link extensions.ExtensionsApi.storage | storage}.
 */
export declare class ExtensionsStorageApi {
    #private;
    /** @hidden */
    constructor(iframeMessenger: IframeMessenger);
    /**
     * Add or replace a storage object.
     *
     * Requires edit access. See {@link EmbeddedViewSdk.getCanEdit | getCanEdit} for more info.
     * If you wish to store an object to the hub of the current project, the user needs
     * edit access to the hub See {@link EmbeddedViewSdk.getCanEditHub | getCanEditHub}
     *
     * @example
     * // STORE JSON
     * const myObject = {
     *  someData: "someValue"
     * }
     *
     * await Forma.extensions.storage.setObject({key: "some-key", data: JSON.stringify(myObject)})
     *
     * @example
     * // STORE Float32Array
     *
     * function arrayToBuffer(array: Float32Array): ArrayBuffer {
     *   const buffer = new ArrayBuffer(array.length * Float32Array.BYTES_PER_ELEMENT);
     *   const arr = new Float32Array(buffer);
     *   arr.set(array);
     *   return arr;
     * }
     *
     * const arr = new Float32Array(100).fill(Math.random())
     * await Forma.extensions.storage.setObject({key: "someKey", data: arrayToBuffer(arr)})
     *
     */
    setObject(request: {
        /** The key of the object. Max length: 200. Allowed characters: [a-zA-Z0-9!-_.*'()] */
        key: string;
        /** Data to be stored. */
        data: ArrayBuffer | string;
        /**
         * The authcontext you want to read the data under.
         * Only the current project or the project's hub are valid authcontext
         */
        authcontext?: string;
        /** Optional metadata to be stored on the object. See {@link StorageObjectMetadata} for more information. */
        metadata?: StorageObjectMetadata | undefined;
    }): Promise<void>;
    /**
     * Utility function to fetch string objects without needing to decode an array buffer.
     *
     * If you wish to get an object on the current project's hub, the user needs
     * view access to the hub See {@link EmbeddedViewSdk.getCanViewHub | getCanViewHub}
     *
     * @returns The data parsed as UTF-8, including metadata if present.
     *
     * @example
     * // READING JSON
     * const res = await Forma.extensions.storage.getTextObject({
     *   key: "some-key",
     * })
     * if (!res) {
     *    return
     * }
     * const metadata = JSON.parse(data.metadata ?? "{}")
     * const data = res.data
     *
     * @example
     * function loadImageFromEncodedPng(
     *   url: string,
     * ): Promise<HtmlImageElement> {
     *   return new Promise((resolve, reject) => {
     *     const img = new Image()
     *     img.onload = () => {
     *       resolve(img)
     *     }
     *     img.onerror = () => {
     *       reject(new Error("Failed to load image"))
     *     }
     *     img.src = url
     *   })
     * }
     *
     * async function createCanvasFromDataUrl(
     *   url: string,
     * ): Promise<HtmlCanvasElement | void> {
     *  const canvas = document.createElement("canvas")
     *  const ctx = canvas.getContext("2d")
     *  const img = await loadImage(url)
     *  canvas.height = img.height
     *  canvas.width = img.width
     *  ctx.drawImage(ctx, img, 0, 0)
     *  return canvas
     * }
     *
     * const res = await Forma.extensions.storage.getTextObject({
     *   key: "some-png-key",
     * })
     * if (!res) {
     *    return
     * }
     * const canvas = createCanvasFromDataUrl(res.data)
     *
     */
    getTextObject(request: {
        /** The key of the object. */
        key: string;
        /**
         * The authcontext of the data you want to read.
         * Only the current project Id or the project's hub ID are valid values.
         */
        authcontext?: string;
    }): Promise<StorageObjectAsText | undefined>;
    /**
     * Fetch the data for the specified key.
     *
     * Use this function when you're **not** fetching text data, such as geometry
     * or analysis results.
     *
     * If you wish to get an object on the current project's hub, the user needs
     * view access to the hub See {@link EmbeddedViewSdk.getCanViewHub | getCanViewHub}
     *
     * @returns The data as an ArrayBuffer, including metadata if present.
     *
     * @example
     * const res = await Forma.extensions.storage.getBinaryObject({
     *   key: "my-float32-array",
     * })
     * if (!res) {
     *  return
     * }
     * const terrainSlope: Float32Array = new Float32Array(res.data)
     * const metadata = JSON.parse(res.metadata ?? "{}")
     *
     */
    getBinaryObject(request: {
        /** The key of the object. */
        key: string;
        /**
         * The authcontext you want to read the data under.
         * Only the current project or the project's hub are valid authcontext
         */
        authcontext?: string;
    }): Promise<StorageObject | undefined>;
    /**
     * List all storage objects for the extension in the current authcontext.
     *
     * @returns List of filtered objects with relevant information.
     *
     * @example
     * const availableObjects = await Forma.extensions.storage.listObjects().results
     */
    listObjects(request?: {
        /** Limit the response to only objects that starts with the key. */
        prefix?: string | undefined;
        /**
         * The authcontext you want to read the data under.
         * Only the current project or the project's hub are valid authcontext
         */
        authcontext?: string;
    }): Promise<{
        results: StorageListObject[];
    }>;
    /**
     * Delete object corresponding to the specified key.
     *
     * Requires edit access. See {@link EmbeddedViewSdk.getCanEdit | getCanEdit} for more info.
     * If you wish to delete an object to the hub of the current project, the user needs
     * edit access to the hub See {@link EmbeddedViewSdk.getCanEditHub | getCanEditHub}
     *
     * @example
     * // Store a JSON object and delete it afterwards
     * const myObject = {
     *  someData: "someValue"
     * }
     * await Forma.extensions.storage.setObject({key: "some-key", data: JSON.stringify(myObject)})
     * await Forma.extensions.storage.deleteObject({key: "some-key"}})
     */
    deleteObject(request: {
        /** The key of the object. */
        key: string;
        /**
         * The authcontext you want to read the data under.
         * Only the current project or the project's hub are valid authcontext
         */
        authcontext?: string;
    }): Promise<void>;
}