/**

* @license

* Copyright Google Inc. All Rights Reserved.

*

* Use of this source code is governed by an MIT-style license that can be

* found in the LICENSE file at https://angular.io/license

*/

import * as fs from 'fs';

export interface BuildEventMessage {

id: {};

[key: string]: {};

}

export class BepGenerator {

private constructor() {}

static createBuildStarted(command: string, time?: number): BuildEventMessage {

return {

id: { started: {} },

started: {

command,

start_time_millis: time == undefined ? Date.now() : time,

},

};

}

static createBuildFinished(code: number, time?: number): BuildEventMessage {

return {

id: { finished: {} },

finished: {

finish_time_millis: time == undefined ? Date.now() : time,

exit_code: { code },

},

};

}

}

export class BepJsonWriter {

private stream = fs.createWriteStream(this.filename);

constructor(public readonly filename: string) {

}

close(): void {

this.stream.close();

}

writeEvent(event: BuildEventMessage): void {

const raw = JSON.stringify(event);

this.stream.write(raw + '\n');

}

writeBuildStarted(command: string, time?: number): void {

const event = BepGenerator.createBuildStarted(command, time);

this.writeEvent(event);

}

writeBuildFinished(code: number, time?: number): void {

const event = BepGenerator.createBuildFinished(code, time);

this.writeEvent(event);

}

}