// Copyright (c) Microsoft Corporation. All rights reserved.

// Licensed under the MIT license.

import { CancellationToken, commands, Position, ProviderResult, Range, TerminalLink, TerminalLinkContext,

TerminalLinkProvider, Uri, window } from "vscode";

import { sendInfo } from "vscode-extension-telemetry-wrapper";

import { resolveSourceUri } from "./languageServerPlugin";

import { parseJavaStackFrame } from "./stackFrameParser";

export class JavaTerminalLinkProvder implements TerminalLinkProvider<IJavaTerminalLink> {

/**

* Provide terminal links for the given context. Note that this can be called multiple times

* even before previous calls resolve, make sure to not share global objects (eg. `RegExp`)

* that could have problems when asynchronous usage may overlap.

* @param context Information about what links are being provided for.

* @param token A cancellation token.

* @return A list of terminal links for the given line.

*/

public provideTerminalLinks(context: TerminalLinkContext, _token: CancellationToken): ProviderResult<IJavaTerminalLink[]> {

const isDebuggerTerminal: boolean = context.terminal.name.startsWith("Run:") || context.terminal.name.startsWith("Debug:");

const frame = parseJavaStackFrame(context.line);

if (frame) {

return [{

startIndex: frame.startIndex,

length: frame.length,

methodName: frame.methodName,

stackTrace: frame.stackTrace,

lineNumber: frame.lineNumber,

isDebuggerTerminal,

}];

}

return [];

}

/**

* Handle an activated terminal link.

*/

public async handleTerminalLink(link: IJavaTerminalLink): Promise<void> {

sendInfo("", {

operationName: "handleJavaTerminalLink",

isDebuggerTerminal: String(link.isDebuggerTerminal),

});

const uri = await resolveSourceUri(link.stackTrace);

if (uri) {

const lineNumber = Math.max(link.lineNumber - 1, 0);

window.showTextDocument(Uri.parse(uri), {

preserveFocus: true,

selection: new Range(new Position(lineNumber, 0), new Position(lineNumber, 0)),

});

} else {

// If no source is found, then open the searching symbols quickpick box.

const fullyQualifiedName = link.methodName.substring(0, link.methodName.lastIndexOf("."));

const className = fullyQualifiedName.substring(fullyQualifiedName.lastIndexOf(".") + 1);

commands.executeCommand("workbench.action.quickOpen", "#" + className);

}

}

}

interface IJavaTerminalLink extends TerminalLink {

methodName: string;

stackTrace: string;

lineNumber: number;

isDebuggerTerminal: boolean;

}