/* eslint-disable
    chai-friendly/no-unused-expressions,
    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
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
const sinon = require("sinon");
const chai = require("chai");
chai.should();
const { expect } = chai;
const mongojs = require("../../../app/js/mongojs");
const { db } = mongojs;
const { ObjectId } = mongojs;
const Settings = require("settings-sharelatex");

const TrackChangesApp = require("./helpers/TrackChangesApp");
const TrackChangesClient = require("./helpers/TrackChangesClient");
const MockWebApi = require("./helpers/MockWebApi");

describe("Getting updates", function() {
	before(function(done) {
		this.now = Date.now();
		this.to = this.now;
		this.user_id = ObjectId().toString();
		this.deleted_user_id = 'deleted_user';
		this.doc_id = ObjectId().toString();
		this.project_id = ObjectId().toString();

		this.minutes = 60 * 1000;
		this.hours = 60 * this.minutes;

		MockWebApi.projects[this.project_id] = {
			features: {
				versioning: true
			}
		};

		MockWebApi.users[this.user_id] = (this.user = {
			email: "user@sharelatex.com",
			first_name: "Leo",
			last_name: "Lion",
			id: this.user_id
		});
		sinon.spy(MockWebApi, "getUserInfo");

		this.updates = [];
		for (let i = 0; i <= 9; i++) {
			this.updates.push({
				op: [{ i: "a", p: 0 }],
				meta: { ts: this.now - ((9 - i) * this.hours) - (2 * this.minutes), user_id: this.user_id },
				v: (2 * i) + 1
			});
			this.updates.push({
				op: [{ i: "b", p: 0 }],
				meta: { ts: this.now - ((9 - i) * this.hours), user_id: this.user_id },
				v: (2 * i) + 2
			});
		}
		this.updates[0].meta.user_id = this.deleted_user_id;

		TrackChangesApp.ensureRunning(() => {
			return TrackChangesClient.pushRawUpdates(this.project_id, this.doc_id, this.updates, error => {
				if (error != null) { throw error; }
				return done();
			});
		});
		return null;
	});

	({
		after() {
			MockWebApi.getUserInfo.restore();
			return null;
		}
	});

	describe("getting updates up to the limit", function() {
		before(function(done) {
			TrackChangesClient.getUpdates(this.project_id, { before: this.to + 1, min_count: 3 }, (error, body) => {
				if (error != null) { throw error; }
				this.updates = body.updates;
				return done();
			});
			return null;
		});

		it("should fetch the user details from the web api", function() {
			return MockWebApi.getUserInfo
				.calledWith(this.user_id)
				.should.equal(true);
		});

		return it("should return at least the min_count number of summarized updates", function() {
			const docs1 = {};
			docs1[this.doc_id] = {toV: 20, fromV: 19};
			const docs2 = {};
			docs2[this.doc_id] = {toV: 18, fromV: 17};
			const docs3 = {};
			docs3[this.doc_id] = {toV: 16, fromV: 15};
			return expect(this.updates.slice(0,3)).to.deep.equal([{
				docs: docs1,
				meta: {
					start_ts: this.to - (2 * this.minutes),
					end_ts: this.to,
					users: [this.user]
				}
			}, {
				docs: docs2,
				meta: {
					start_ts: this.to - (1 * this.hours) - (2 * this.minutes),
					end_ts: this.to - (1 * this.hours),
					users: [this.user]
				}
			}, {
				docs: docs3,
				meta: {
					start_ts: this.to - (2 * this.hours) - (2 * this.minutes),
					end_ts: this.to - (2 * this.hours),
					users: [this.user]
				}
			}]);
	});
});

	return describe("getting updates beyond the end of the database", function() {
		before(function(done) {
			TrackChangesClient.getUpdates(this.project_id, { before: (this.to - (8 * this.hours)) + 1, min_count: 30 }, (error, body) => {
				if (error != null) { throw error; }
				this.updates = body.updates;
				return done();
			});
			return null;
		});

		return it("should return as many updates as it can", function() {
			const docs1 = {};
			docs1[this.doc_id] = {toV: 4, fromV: 3};
			const docs2 = {};
			docs2[this.doc_id] = {toV: 2, fromV: 1};
			return expect(this.updates).to.deep.equal([{
				docs: docs1,
				meta: {
					start_ts: this.to - (8 * this.hours) - (2 * this.minutes),
					end_ts: this.to - (8 * this.hours),
					users: [this.user]
				}
			}, {
				docs: docs2,
				meta: {
					start_ts: this.to - (9 * this.hours) - (2 * this.minutes),
					end_ts: this.to - (9 * this.hours),
					users: [this.user, null]
				}
			}]);
	});
});
});