/* eslint-disable
    camelcase,
    handle-callback-err,
    no-throw-literal,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS101: Remove unnecessary use of Array.from
 * DS102: Remove unnecessary code created because of implicit returns
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
const RealTimeClient = require("./helpers/RealTimeClient");
const MockDocUpdaterServer = require("./helpers/MockDocUpdaterServer");
const FixturesManager = require("./helpers/FixturesManager");

const async = require("async");

const settings = require("settings-sharelatex");
const redis = require("redis-sharelatex");
const rclient = redis.createClient(settings.redis.pubsub);

describe("leaveProject", function() {
	before(function(done) { return MockDocUpdaterServer.run(done); });

	describe("with other clients in the project", function() {
		before(function(done) {
			return async.series([
				cb => {
					return FixturesManager.setUpProject({
						privilegeLevel: "owner",
						project: {
							name: "Test Project"
						}
					}, (e, {project_id, user_id}) => { this.project_id = project_id; this.user_id = user_id; return cb(); });
				},

				cb => {
					this.clientA = RealTimeClient.connect();
					return this.clientA.on("connectionAccepted", cb);
				},

				cb => {
					this.clientB = RealTimeClient.connect();
					this.clientB.on("connectionAccepted", cb);

					this.clientBDisconnectMessages = [];
					return this.clientB.on("clientTracking.clientDisconnected", data => {
						return this.clientBDisconnectMessages.push(data);
					});
				},

				cb => {
					return this.clientA.emit("joinProject", {project_id: this.project_id}, (error, project, privilegeLevel, protocolVersion) => {
						this.project = project;
						this.privilegeLevel = privilegeLevel;
						this.protocolVersion = protocolVersion;
						return cb(error);
					});
				},

				cb => {
					return this.clientB.emit("joinProject", {project_id: this.project_id}, (error, project, privilegeLevel, protocolVersion) => {
						this.project = project;
						this.privilegeLevel = privilegeLevel;
						this.protocolVersion = protocolVersion;
						return cb(error);
					});
				},

				cb => {
					return FixturesManager.setUpDoc(this.project_id, {lines: this.lines, version: this.version, ops: this.ops}, (e, {doc_id}) => {
						this.doc_id = doc_id;
						return cb(e);
					});
				},

				cb => {
					return this.clientA.emit("joinDoc", this.doc_id, cb);
				},
				cb => {
					return this.clientB.emit("joinDoc", this.doc_id, cb);
				},

				cb => {
					// leaveProject is called when the client disconnects
					this.clientA.on("disconnect", () => cb());
					return this.clientA.disconnect();
				},

				cb => {
					// The API waits a little while before flushing changes
					return setTimeout(done, 1000);
				}

			], done);
		});

		it("should emit a disconnect message to the room", function() {
			return this.clientBDisconnectMessages.should.deep.equal([this.clientA.publicId]);
	});

		it("should no longer list the client in connected users", function(done) {
			return this.clientB.emit("clientTracking.getConnectedUsers", (error, users) => {
				for (const user of Array.from(users)) {
					if (user.client_id === this.clientA.publicId) {
						throw "Expected clientA to not be listed in connected users";
					}
				}
				return done();
			});
		});

		it("should not flush the project to the document updater", function() {
			return MockDocUpdaterServer.deleteProject
				.calledWith(this.project_id)
				.should.equal(false);
		});

		it("should remain subscribed to the editor-events channels", function(done) {
			rclient.pubsub('CHANNELS', (err, resp) => {
				if (err) { return done(err); }
				resp.should.include(`editor-events:${this.project_id}`);
				return done();
			});
			return null;
		});

		return it("should remain subscribed to the applied-ops channels", function(done) {
			rclient.pubsub('CHANNELS', (err, resp) => {
				if (err) { return done(err); }
				resp.should.include(`applied-ops:${this.doc_id}`);
				return done();
			});
			return null;
		});
	});

	return describe("with no other clients in the project", function() {
		before(function(done) {
			return async.series([
				cb => {
					return FixturesManager.setUpProject({
						privilegeLevel: "owner",
						project: {
							name: "Test Project"
						}
					}, (e, {project_id, user_id}) => { this.project_id = project_id; this.user_id = user_id; return cb(); });
				},

				cb => {
					this.clientA = RealTimeClient.connect();
					return this.clientA.on("connect", cb);
				},

				cb => {
					return this.clientA.emit("joinProject", {project_id: this.project_id}, (error, project, privilegeLevel, protocolVersion) => {
						this.project = project;
						this.privilegeLevel = privilegeLevel;
						this.protocolVersion = protocolVersion;
						return cb(error);
					});
				},

				cb => {
					return FixturesManager.setUpDoc(this.project_id, {lines: this.lines, version: this.version, ops: this.ops}, (e, {doc_id}) => {
						this.doc_id = doc_id;
						return cb(e);
					});
				},
				cb => {
					return this.clientA.emit("joinDoc", this.doc_id, cb);
				},

				cb => {
					// leaveProject is called when the client disconnects
					this.clientA.on("disconnect", () => cb());
					return this.clientA.disconnect();
				},

				cb => {
					// The API waits a little while before flushing changes
					return setTimeout(done, 1000);
				}
			], done);
		});

		it("should flush the project to the document updater", function() {
			return MockDocUpdaterServer.deleteProject
				.calledWith(this.project_id)
				.should.equal(true);
		});

		it("should not subscribe to the editor-events channels anymore", function(done) {
			rclient.pubsub('CHANNELS', (err, resp) => {
				if (err) { return done(err); }
				resp.should.not.include(`editor-events:${this.project_id}`);
				return done();
			});
			return null;
		});

		return it("should not subscribe to the applied-ops channels anymore", function(done) {
			rclient.pubsub('CHANNELS', (err, resp) => {
				if (err) { return done(err); }
				resp.should.not.include(`applied-ops:${this.doc_id}`);
				return done();
			});
			return null;
		});
	});
});