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//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
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// Licenses when the conditions for such availability set forth in the Eclipse
// Public License v. 2.0 are satisfied: GNU General Public License, version 2
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/*---------------------------------------------------------------------------------------------
*  Copyright (c) Microsoft Corporation. All rights reserved.
*  Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/

// Copied from https://github.com/microsoft/vscode/blob/1.104.0/src/vscode-dts/vscode.proposed.editorHoverVerbosityLevel.d.ts

export module '@theia/plugin' {

    /**
     * A hover represents additional information for a symbol or word. Hovers are
     * rendered in a tooltip-like widget.
     */
    export class VerboseHover extends Hover {

        /**
         * Can increase the verbosity of the hover
         */
        canIncreaseVerbosity?: boolean;

        /**
         * Can decrease the verbosity of the hover
         */
        canDecreaseVerbosity?: boolean;

        /**
         * Creates a new hover object.
         *
         * @param contents The contents of the hover.
         * @param range The range to which the hover applies.
         */
        constructor(contents: MarkdownString | MarkedString | Array<MarkdownString | MarkedString>, range?: Range, canIncreaseVerbosity?: boolean, canDecreaseVerbosity?: boolean);
    }

    export interface HoverContext {

        /**
         * The delta by which to increase/decrease the hover verbosity level
         */
        readonly verbosityDelta?: number;

        /**
         * The previous hover sent for the same position
         */
        readonly previousHover?: Hover;
    }

    export enum HoverVerbosityAction {
        /**
         * Increase the hover verbosity
         */
        Increase = 0,
        /**
         * Decrease the hover verbosity
         */
        Decrease = 1
    }

    /**
     * The hover provider class
     */
    export interface HoverProvider {

        /**
         * Provide a hover for the given position and document. Multiple hovers at the same
         * position will be merged by the editor. A hover can have a range which defaults
         * to the word range at the position when omitted.
         *
         * @param document The document in which the command was invoked.
         * @param position The position at which the command was invoked.
         * @param token A cancellation token.
         * @oaram context A hover context.
         * @returns A hover or a thenable that resolves to such. The lack of a result can be
         * signaled by returning `undefined` or `null`.
         */
        provideHover(document: TextDocument, position: Position, token: CancellationToken, context?: HoverContext): ProviderResult<VerboseHover>;
    }
}