/* eslint-disable
    handle-callback-err,
    no-return-assign,
    no-unused-vars,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS102: Remove unnecessary code created because of implicit returns
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */

const {
    assert
} = require("chai");
const sinon = require('sinon');
const chai = require('chai');
const should = chai.should();
const {
    expect
} = chai;
const modulePath = "../../../app/js/LocalFileWriter.js";
const SandboxedModule = require('sandboxed-module');

describe("LocalFileWriter", function() {

	beforeEach(function() {

		this.writeStream = { 
			on(type, cb){
				if (type === "finish") {
					return cb();
				}
			}
		};
		this.readStream = 
			{on() {}};
		this.fs = { 
			createWriteStream : sinon.stub().returns(this.writeStream),
			createReadStream: sinon.stub().returns(this.readStream),
			unlink: sinon.stub()
		};
		this.settings = {
			path: {
				uploadFolder:"somewhere"
			}
		};
		this.writer = SandboxedModule.require(modulePath, { requires: {
			"fs": this.fs,
			"logger-sharelatex": {
				log() {},
				err() {}
			},
			"settings-sharelatex":this.settings,
			"metrics-sharelatex": { 
				inc() {},
				Timer() {
					return {done() {}};
				}
			}
		}
	}
		);

		return this.stubbedFsPath = "something/uploads/eio2k1j3";
	});

	describe("writeStrem", function() {
		beforeEach(function() {
			return this.writer._getPath = sinon.stub().returns(this.stubbedFsPath);
		});

		it("write the stream to ./uploads", function(done){
			const stream = { 
				pipe: dest=> {
					dest.should.equal(this.writeStream);
					return done();
				},
				on() {}
			};
			return this.writer.writeStream(stream, null, ()=> {});
		});

		return it("should send the path in the callback", function(done){
			const stream = { 
				pipe: dest=> {},
				on(type, cb){
					if (type === "end") {
						return cb();
					}
				}
			};
			return this.writer.writeStream(stream, null, (err, fsPath)=> {
				fsPath.should.equal(this.stubbedFsPath);
				return done();
			});
		});
	});

	describe("getStream", function() {

		it("should read the stream from the file ", function(done){
			return this.writer.getStream(this.stubbedFsPath, (err, stream)=> {
				this.fs.createReadStream.calledWith(this.stubbedFsPath).should.equal(true);
				return done();
			});
		});

		return it("should send the stream in the callback", function(done){
			return this.writer.getStream(this.stubbedFsPath, (err, readStream)=> {
				readStream.should.equal(this.readStream);
				return done();
			});
		});
	});

	return describe("delete file", () => it("should unlink the file", function(done){
        const error = "my error";
        this.fs.unlink.callsArgWith(1, error);
        return this.writer.deleteFile(this.stubbedFsPath, err=> {
            this.fs.unlink.calledWith(this.stubbedFsPath).should.equal(true);
            err.should.equal(error);
            return done();
        });
    }));
});