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// Copyright (c) Microsoft Corporation.

// Licensed under the MIT License.

import vscode = require("vscode");

import { RequestType } from "vscode-languageclient";

import type { LanguageClient } from "vscode-languageclient/node";

import { LanguageClientConsumer } from "../languageClientConsumer";

interface IExpandAliasRequestArguments {}

interface IExpandAliasRequestResponse {

text: string;

}

export const ExpandAliasRequestType = new RequestType<

IExpandAliasRequestArguments,

IExpandAliasRequestResponse,

void

>("powerShell/expandAlias");

export class ExpandAliasFeature extends LanguageClientConsumer {

private command: vscode.Disposable;

constructor() {

super();

this.command = vscode.commands.registerCommand(

"PowerShell.ExpandAlias",

async () => {

const editor = vscode.window.activeTextEditor;

if (editor === undefined) {

return;

}

const document = editor.document;

const selection = editor.selection;

const sls = selection.start;

const sle = selection.end;

let text: string;

let range: vscode.Range | vscode.Position;

if (sls.character === sle.character && sls.line === sle.line) {

text = document.getText();

range = new vscode.Range(

0,

0,

document.lineCount,

text.length,

);

} else {

text = document.getText(selection);

range = new vscode.Range(

sls.line,

sls.character,

sle.line,

sle.character,

);

}

const client = await LanguageClientConsumer.getLanguageClient();

const result = await client.sendRequest(

ExpandAliasRequestType,

{ text },

);

await editor.edit((editBuilder) => {

editBuilder.replace(range, result.text);

});

},

);

}

public override onLanguageClientSet(

_languageClient: LanguageClient,

// eslint-disable-next-line @typescript-eslint/no-empty-function

): void {}

public dispose(): void {

this.command.dispose();

}

}