process.env.NODE_ENV = 'test'

let chai = require('chai')
let server = require('../server')
let should = chai.should()
let expect = chai.expect

let { sequelize } = require('../models')

const Errors = require('../lib/errors.js')
let PAGINATION_THREAD_ID
let MID_PAGINATION_POST_ID

chai.use(require('chai-http'))
chai.use(require('chai-things'))

describe('Thread and post', () => {
	let userAgent, replyAgent

	//Wait for app to start before commencing
	before((done) => {
		if(server.locals.appStarted) mockData()

		server.on('appStarted', () => {
			mockData()
		})

		function mockData() {
			userAgent = chai.request.agent(server)
			replyAgent = chai.request.agent(server)

			userAgent
				.post('/api/v1/user')
				.set('content-type', 'application/json')
				.send({
					username: 'username',
					password: 'password',
					admin: true
				})
				.then(() => {
					userAgent
						.post('/api/v1/category')
						.set('content-type', 'application/json')
						.send({ name: 'category_name' })
						.then(() => { done() })
						.catch(done)
				})
				.catch(done)
		}

	})

	//Delete all rows in table after
	//tests completed
	after(() => {
		sequelize.sync({ force: true })
	})

	describe('POST /thread', () => {
		it('should create a thread if logged in', async () => {
			let res = await userAgent
				.post('/api/v1/thread')
				.set('content-type', 'application/json')
				.send({
					name: 'thread',
					category: 'category_name'
				})

			res.should.have.status(200)
			res.should.be.json
			res.body.should.have.property('name', 'thread')
			res.body.should.have.property('slug', 'thread')
			res.body.should.have.deep.property('User.username', 'username')
			res.body.should.have.deep.property('Category.name', 'category_name')
		})
		it('should add a slug from the thread name', async () => {
			let res = await userAgent
				.post('/api/v1/thread')
				.set('content-type', 'application/json')
				.send({
					name: ' à long thrËad, with lØts of àccents!!!	',
					category: 'category_name'
				})

			res.should.have.status(200)
			res.should.be.json
			res.body.should.have.property('name', ' à long thrËad, with lØts of àccents!!!	')
			res.body.should.have.property('slug', 'a-long-thread-with-lots-of-accents')
			res.body.should.have.deep.property('User.username', 'username')
			res.body.should.have.deep.property('Category.name', 'category_name')
		})
		it('should return an error if not logged in', async () => {
			try {
				let res = await chai.request(server)
					.post('/api/v1/thread')
					.set('content-type', 'application/json')
					.send({
						name: 'thread',
						category: 'category_name'
					})

				res.should.be.json
				res.should.have.status(401)
				res.body.errors.should.contain.something.that.deep.equals(Errors.requestNotAuthorized)
			} catch (res) {
				res.should.have.status(401)
				JSON.parse(res.response.text).errors.should.contain.something.that.deep.equals(Errors.requestNotAuthorized)
			}
		})
		it('should return an error if missing parameters', async () => {
			try {
				let res = await userAgent
					.post('/api/v1/thread')

				res.should.be.json
				res.should.have.status(400)
				res.body.errors.should.contain.something.that.deep.equals(Errors.missingParameter('name'))
				res.body.errors.should.contain.something.that.deep.equals(Errors.missingParameter('category'))
			} catch (res) {
				let body = JSON.parse(res.response.text)
				res.should.have.status(400)
				body.errors.should.contain.something.that.deep.equals(Errors.missingParameter('name'))
				body.errors.should.contain.something.that.deep.equals(Errors.missingParameter('category'))
			}
		})
		it('should return an error if invalid types', async () => {
			try {
				let res = await userAgent
					.post('/api/v1/thread')
					.set('content-type', 'application/json')
					.send({
						name: 123,
						category: 123
					})

				res.should.be.json
				res.should.have.status(400)
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('name', 'string'))
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('category', 'string'))
			} catch (res) {
				let body = JSON.parse(res.response.text)
				res.should.have.status(400)
				body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('name', 'string'))
				body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('category', 'string'))
			}
		})
		it('should return an error if category does not exist', async () => {
			try {
				let res = await userAgent
					.post('/api/v1/thread')
					.set('content-type', 'application/json')
					.send({
						name: 'thread1',
						category: 'non-existent'
					})

				res.should.be.json
				res.should.have.status(400)
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidCategory)
			} catch (res) {
				res.should.have.status(400)
				JSON.parse(res.response.text).errors.should.contain.something.that.deep.equals(Errors.invalidCategory)
			}
		})
	})

	describe('POST /post', () => {
		it('should create a post if logged in', async () => {
			let res = await userAgent
				.post('/api/v1/post')
				.set('content-type', 'application/json')
				.send({
					content: 'content',
					threadId: 1
				})

			res.should.be.json
			res.should.have.status(200)
			res.body.should.have.property('content', '<p>content</p>\n')
			res.body.should.have.deep.property('User.username', 'username')
			res.body.should.have.deep.property('Thread.name', 'thread')

		})
		it('should return an error if not logged in', async () => {
			try {
				let res = await chai.request(server)
					.post('/api/v1/post')
					.set('content-type', 'application/json')
					.send({
						content: 'content',
						threadId: 1
					})

				res.should.be.json
				res.should.have.status(401)
				res.body.errors.should.contain.something.that.deep.equals(Errors.requestNotAuthorized)
			} catch (res) {
				res.should.have.status(401)
				JSON.parse(res.response.text).errors.should.contain.something.that.deep.equals(Errors.requestNotAuthorized)
			}
		})
		it('should return an error if missing parameters', async () => {
			try {
				let res = await userAgent
					.post('/api/v1/post')

				res.should.be.json
				res.should.have.status(400)
				res.body.errors.should.contain.something.that.deep.equals(Errors.missingParameter('content'))
				res.body.errors.should.contain.something.that.deep.equals(Errors.missingParameter('threadId'))
			} catch (res) {
				let body = JSON.parse(res.response.text)
				res.should.have.status(400)
				body.errors.should.contain.something.that.deep.equals(Errors.missingParameter('content'))
				body.errors.should.contain.something.that.deep.equals(Errors.missingParameter('threadId'))
			}
		})
		it('should return an error if invalid types', async () => {
			try {
				let res = await userAgent
					.post('/api/v1/post')
					.set('content-type', 'application/json')
					.send({
						content: 123,
						threadId: 'string',
						replyingToId: 'string'
					})

				res.should.be.json
				res.should.have.status(400)
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('content', 'string'))
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('threadId', 'integer'))
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('replyingToId', 'integer'))
			} catch (res) {
				let body = JSON.parse(res.response.text)
				res.should.have.status(400)
				body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('content', 'string'))
				body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('threadId', 'integer'))
				body.errors.should.contain.something.that.deep.equals(Errors.invalidParameterType('replyingToId', 'integer'))
			}
		})
		it('should return an error if thread id does not exist', async () => {
			try {
				let res = await userAgent
					.post('/api/v1/post')
					.set('content-type', 'application/json')
					.send({
						content: 'content',
						threadId: 10
					})

				res.should.be.json
				res.should.have.status(400)
				res.body.errors.should.include.something.that.deep.equals(Errors.invalidParameter('threadId', 'thread does not exist'))
			} catch (res) {
				let body = JSON.parse(res.response.text)
				res.should.have.status(400)
				body.errors.should.include.something.that.deep.equals(Errors.invalidParameter('threadId', 'thread does not exist'))
			}
		})
		it('should be able to reply to a post', async () => {
			await replyAgent
				.post('/api/v1/user')
				.set('content-type', 'application/json')
				.send({
					username: 'username1',
					password: 'password'
				})

			let res = await replyAgent
				.post('/api/v1/post')
				.set('content-type', 'application/json')
				.send({
					content: 'another post',
					threadId: 1,
					replyingToId: 1
				})

			res.should.be.json
			res.should.have.status(200)
			res.body.should.have.property('content', '<p>another post</p>\n')
			res.body.should.have.deep.property('User.username', 'username1')
			res.body.should.have.deep.property('Thread.name', 'thread')
			res.body.should.have.property('replyingToUsername', 'username')
			res.body.should.have.property('Replies').that.deep.equals([])
		})
		it('should return any replies to a post', async () => {
			let res = await replyAgent.get('/api/v1/post/1')

			res.should.be.json
			res.should.have.status(200)
			res.body.should.have.deep.property('replyingToUsername', null)
			res.body.should.have.deep.property('Replies.0.content', '<p>another post</p>\n')
		})
		it('should return an error if reply id does not exist', async () => {
			try {
				let res = await replyAgent
					.post('/api/v1/post')
					.set('content-type', 'application/json')
					.send({
						content: 'yet another post',
						threadId: 1,
						replyingToId: 10
					})

				res.should.have.status(400)
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidParameter('replyingToId', 'post does not exist'))
			} catch (res) {
				let body = JSON.parse(res.response.text)

				res.should.have.status(400)
				body.errors.should.contain.something.that.deep.equals(Errors.invalidParameter('replyingToId', 'post does not exist'))
			}
		})
		it('should return an error if post reply not in same thread', async () => {
			try {
				let threadId = (await replyAgent
					.post('/api/v1/thread')
					.set('content-type', 'application/json')
					.send({
						name: 'another thread',
						category: 'category_name'
					})).body.id

				let res = await replyAgent
					.post('/api/v1/post')
					.set('content-type', 'application/json')
					.send({
						content: 'yet another post',
						threadId: threadId,
						replyingToId: 1
					})

				res.should.have.status(400)
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidParameter('replyingToId', 'replies must be in same thread'))
			} catch (res) {
				let body = JSON.parse(res.response.text)

				res.should.have.status(400)
				body.errors.should.contain.something.that.deep.equals(Errors.invalidParameter('replyingToId', 'replies must be in same thread'))
			}
		})
	})

	describe('GET /thread/:id', () => {
		it('should return the thread and corresponding posts', async () => {
			let res = await chai.request(server).get('/api/v1/thread/1')

			res.should.have.status(200)
			res.should.be.json
			res.body.should.have.property('name', 'thread')
			res.body.should.have.deep.property('Category.name', 'category_name')
			res.body.should.have.deep.property('User.username', 'username')
			res.body.should.have.property('Posts')
			
			res.body.Posts.should.have.property('length', 2)

			res.body.Posts.should.contain.something.that.has.property('content', '<p>content</p>\n')
			res.body.Posts.should.contain.something.that.has.deep.property('User.username', 'username')
			
			res.body.Posts.should.contain.something.that.has.property('content', '<p>another post</p>\n')
			res.body.Posts.should.contain.something.that.has.deep.property('User.username', 'username1')
		})
		it('should allow pagination', async () => {
			let thread = await userAgent
				.post('/api/v1/thread')
				.set('content-type', 'application/json')
				.send({ category: 'category_name', name: 'pagination' })

			PAGINATION_THREAD_ID = thread.body.id

			for(var i = 0; i < 30; i++) {
				let post = await userAgent
					.post('/api/v1/post')
					.set('content-type', 'application/json')
					.send({ threadId: thread.body.id, content: `POST ${i}` })

				if(i === 15) MID_PAGINATION_POST_ID = post.body.id
			}

			let pageOne = await userAgent.get('/api/v1/thread/' + thread.body.id)
			let pageTwo = await userAgent.get(pageOne.body.meta.nextURL)
			let pageThree = await userAgent.get(pageTwo.body.meta.nextURL)
			let pageInvalid = await userAgent.get('/api/v1/thread/' + thread.body.id + '?lastId=' + 100)

			pageOne.body.Posts.should.have.length(10)
			pageOne.body.meta.should.have.property('previousURL', null)
			pageOne.body.Posts[0].should.have.property('content', '<p>POST 0</p>\n')

			pageTwo.body.Posts.should.have.length(10)
			pageTwo.body.Posts[0].should.have.property('content', '<p>POST 10</p>\n')
			pageTwo.body.meta.should.have.property(
				'previousURL',
				`/api/v1/thread/${thread.body.id}?limit=10&lastId=${pageOne.body.Posts[0].id}`
			)

			pageThree.body.Posts.should.have.length(10)
			pageThree.body.Posts[0].should.have.property('content', '<p>POST 20</p>\n')
			pageThree.body.Posts[9].should.have.property('content', '<p>POST 29</p>\n')
			expect(pageThree.body.meta.nextURL).to.be.null

			pageInvalid.body.Posts.should.have.length(0)
		})
		it('should allow you to get an individual and surrounding posts', async () => {
			let http = chai.request(server)
			
			let pageOne = await http.get(`/api/v1/thread/${PAGINATION_THREAD_ID}?postId=${MID_PAGINATION_POST_ID}`)
			let pageZero = await http.get(pageOne.body.meta.previousURL)
			let pageTwo = await http.get(pageOne.body.meta.nextURL)

			pageOne.body.Posts.should.have.length(11)
			pageOne.body.Posts[0].should.have.property('content', '<p>POST 10</p>\n')
			pageOne.body.Posts[5].should.have.property('content', '<p>POST 15</p>\n')
			pageOne.body.Posts[10].should.have.property('content', '<p>POST 20</p>\n')

			pageTwo.body.Posts.should.have.length(10)
			pageTwo.body.Posts[0].should.have.property('content', '<p>POST 21</p>\n')
			pageTwo.body.Posts[9].should.have.property('content', '<p>POST 30</p>\n')
			pageTwo.body.meta.should.have.property('nextURL', null)

			pageZero.body.Posts.should.have.length(10)
			pageZero.body.Posts[0].should.have.property('content', '<p>POST 0</p>\n')
			pageZero.body.Posts[9].should.have.property('content', '<p>POST 9</p>\n')
			pageZero.body.meta.should.have.property('previousURL', null)

		})
		it('should return an error if :id is invalid', async () => {
			try {
				let res = await chai.request(server).get('/api/v1/thread/invalid')

				res.should.have.status(400)
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidParameter('id', 'thread does not exist'))
			} catch (res) {
				let body = JSON.parse(res.response.text)

				res.should.have.status(400)
				body.errors.should.contain.something.that.deep.equals(Errors.invalidParameter('id', 'thread does not exist'))
			}
		})
	})

	describe('GET /post/:id', () => {
		it('should return the post', async () => {
			let res = await chai.request(server).get('/api/v1/post/1')

			res.should.have.status(200)
			res.should.be.json
			res.body.should.have.property('content', '<p>content</p>\n')
			res.body.should.have.deep.property('User.username', 'username')
			res.body.should.have.deep.property('Thread.name', 'thread')
			res.body.should.have.deep.property('Thread.Category.name', 'category_name')
			res.body.should.have.deep.property('Replies.0.User.username', 'username1')
		})
		it('should return an error if invalid post id', async () => {
			try {
				let res = await chai.request(server).get('/api/v1/post/invalid')

				res.should.have.status(400)
				res.body.errors.should.contain.something.that.deep.equals(Errors.invalidParameter('id', 'post does not exist'))
			} catch (res) {
				let body = JSON.parse(res.response.text)

				res.should.have.status(400)
				body.errors.should.contain.something.that.deep.equals(Errors.invalidParameter('id', 'post does not exist'))
			}
		})
	})
})