import fs from 'fs'
import 'mocha'
import should from 'should'
import stream from 'stream'
import zlib from 'zlib'

import { XmlParser } from '../src/parser'

describe('nodes with same names', () => {
	it('should properly parse a simple file containing nodes with same names.', (done) => {
		const xmlStream = fs.createReadStream('./test/TestFiles/nodesWithSameNames.xml')
		const parser = new XmlParser()

		const actualData: string[] = []
		const actualItems: string[] = []
		let dataEventCount = 0

		parser.on('data', (data) => {
			actualData.push(data)
			dataEventCount++
		})

		parser.on('error', (err) => {
			should(err).not.be.ok()
			done(err)
		})

		parser.on('item', (item) => {
			actualItems.push(item)
		})

		parser.on('end', () => {
			should(actualItems.length).equal(18)
			should(dataEventCount).equal(18)
			done()
		})

		xmlStream.pipe(parser)
	})

	it('should properly parse a simple file containing nodes with same names and emit events on multiple nodes.', (done) => {
		const xmlStream = fs.createReadStream('./test/TestFiles/nodesWithSameNames.xml')
		const parser = new XmlParser()

		let dataEventCount = 0
		let itemEventCount = 0
		let subitemEventCount = 0

		parser.on('data', (data) => {
			dataEventCount++
		})

		parser.on('error', (err) => {
			should(err).not.be.ok()
			done(err)
		})

		parser.on('item', (item) => {
			itemEventCount++
		})

		parser.on('subitem', (subitem) => {
			subitemEventCount++
		})

		parser.on('end', () => {
			should(itemEventCount).equal(18)
			should(subitemEventCount).equal(13)
			should(dataEventCount).equal(31)
			done()
		})

		xmlStream.pipe(parser)
	})

	it('should properly parse a medium size file with same names randomly.', (done) => {
		const xmlStream = fs.createReadStream('./test/TestFiles/nodesWithSameNamesRandomly.xml')
		const parser = new XmlParser()

		let dataEventCount = 0
		let itemEventCount = 0
		let subitemEventCount = 0

		parser.on('data', (data) => {
			dataEventCount++
		})

		parser.on('error', (err) => {
			done(err)
		})

		parser.on('item', (item) => {
			itemEventCount++
		})

		parser.on('subitem', (subitem) => {
			subitemEventCount++
		})

		parser.on('end', () => {
			// console.log('dataEventCount=', dataEventCount)
			// console.log('itemEventCount=', itemEventCount)
			// console.log('subitemEventCount=', subitemEventCount)
			should(dataEventCount).equal(32)
			should(itemEventCount).equal(19)
			should(subitemEventCount).equal(13)
			done()
		})
		xmlStream.pipe(parser)
	})
})