import * as chai from 'chai';
const expect = chai.expect;

import { temporaryDir, shell, pkg, fs, exists } from './helpers';
const tmp = temporaryDir();

describe('CLI', () => {

    let runHelp = null;

    before(() => {
        tmp.create();
        runHelp = shell('node', ['./bin/index.js', '-h']);
    });
    after(() => tmp.clean());


    it(`should display correct version ${pkg.version}`, () => {
        let runVersion = shell('node', ['./bin/index.js', '-V']);
        expect(runVersion.stdout.toString()).to.contain(pkg.version);
        console.log(runVersion.stderr.toString());
    });

    it(`should display help message`, () => {
        expect(runHelp.stdout.toString()).to.contain('Usage: index [options]');
    });

    describe('should display options in help', () => {

        it(`-f`, () => {
            expect(runHelp.stdout.toString()).to.contain('-f, --file <file>');
            expect(runHelp.stdout.toString()).to.contain('Entry *.ts file');
        });

        it(`-p`, () => {
            expect(runHelp.stdout.toString()).to.contain('-p, --tsconfig <config>');
            expect(runHelp.stdout.toString()).to.contain('A tsconfig.json (default: ./tsconfig.json)');
        });

        it(`-o`, () => {
            expect(runHelp.stdout.toString()).to.contain('-o, --open');
            expect(runHelp.stdout.toString()).to.contain('Open the generated HTML diagram file');
        });

        it(`-g`, () => {
            expect(runHelp.stdout.toString()).to.contain('-g, --display-legend <display-legend>');
            expect(runHelp.stdout.toString()).to.contain('Display the legend of graph default(true)');
        });

        it(`-s`, () => {
            expect(runHelp.stdout.toString()).to.contain('-s, --silent');
            expect(runHelp.stdout.toString()).to.contain("In silent mode, log messages aren't logged in the console");
        });

        it(`-t`, () => {
            expect(runHelp.stdout.toString()).to.contain('-t, --output-formats <output-formats>');
            expect(runHelp.stdout.toString()).to.contain('Output formats (default: html,svg,dot,json)');
        });

        it(`-d`, () => {
            expect(runHelp.stdout.toString()).to.contain('-d, --output <folder>');
            expect(runHelp.stdout.toString()).to.contain('Where to store the generated files (default: ./documentation)');
        });
    });

});