m = require 'mochainon'
{ expect } = m.chai

_ = require 'lodash'

{ Service } = require '../src/compose/service'

configs = {
	simple: {
		compose: require('./data/docker-states/simple/compose.json')
		imageInfo: require('./data/docker-states/simple/imageInfo.json')
		inspect: require('./data/docker-states/simple/inspect.json')
	}
	entrypoint: {
		compose: require('./data/docker-states/entrypoint/compose.json')
		imageInfo: require('./data/docker-states/entrypoint/imageInfo.json')
		inspect: require('./data/docker-states/entrypoint/inspect.json')
	}
}

describe 'compose/service', ->

	it 'extends environment variables properly', ->
		extendEnvVarsOpts = {
			uuid: '1234'
			appName: 'awesomeApp'
			commit: 'abcdef'
			name: 'awesomeDevice'
			version: 'v1.0.0'
			deviceType: 'raspberry-pi'
			osVersion: 'Resin OS 2.0.2'
		}
		service = {
			appId: '23'
			releaseId: 2
			serviceId: 3
			imageId: 4
			serviceName: 'serviceName'
			environment:
				FOO: 'bar'
				A_VARIABLE: 'ITS_VALUE'
		}
		s = Service.fromComposeObject(service, extendEnvVarsOpts)

		expect(s.config.environment).to.deep.equal({
			FOO: 'bar'
			A_VARIABLE: 'ITS_VALUE'
			RESIN_APP_ID: '23'
			RESIN_APP_NAME: 'awesomeApp'
			RESIN_DEVICE_UUID: '1234'
			RESIN_DEVICE_TYPE: 'raspberry-pi'
			RESIN_HOST_OS_VERSION: 'Resin OS 2.0.2'
			RESIN_SERVICE_NAME: 'serviceName'
			RESIN_SUPERVISOR_VERSION: 'v1.0.0'
			RESIN_APP_LOCK_PATH: '/tmp/balena/updates.lock'
			RESIN_SERVICE_KILL_ME_PATH: '/tmp/balena/handover-complete'
			RESIN: '1'
			BALENA_APP_ID: '23'
			BALENA_APP_NAME: 'awesomeApp'
			BALENA_DEVICE_UUID: '1234'
			BALENA_DEVICE_TYPE: 'raspberry-pi'
			BALENA_HOST_OS_VERSION: 'Resin OS 2.0.2'
			BALENA_SERVICE_NAME: 'serviceName'
			BALENA_SUPERVISOR_VERSION: 'v1.0.0'
			BALENA_APP_LOCK_PATH: '/tmp/balena/updates.lock'
			BALENA_SERVICE_HANDOVER_COMPLETE_PATH: '/tmp/balena/handover-complete'
			BALENA: '1'
			USER: 'root'
		})

	it 'returns the correct default bind mounts', ->
		s = Service.fromComposeObject({
			appId: '1234'
			serviceName: 'foo'
			releaseId: 2
			serviceId: 3
			imageId: 4
		}, { appName: 'foo' })
		binds = Service.defaultBinds(s.appId, s.serviceName)
		expect(binds).to.deep.equal([
			'/tmp/balena-supervisor/services/1234/foo:/tmp/resin'
			'/tmp/balena-supervisor/services/1234/foo:/tmp/balena'
		])

	it 'produces the correct port bindings and exposed ports', ->
		s = Service.fromComposeObject({
			appId: '1234'
			serviceName: 'foo'
			releaseId: 2
			serviceId: 3
			imageId: 4
			expose: [
				1000,
				'243/udp'
			],
			ports: [
				'2344'
				'2345:2354'
				'2346:2367/udp'
			]
		}, {
			imageInfo: Config: {
				ExposedPorts: {
					'53/tcp': {}
					'53/udp': {}
					'2354/tcp': {}
				}
			}
		})
		ports = s.generateExposeAndPorts()
		expect(ports.portBindings).to.deep.equal({
			'2344/tcp': [{
				HostIp: '',
				HostPort: '2344'
			}],
			'2354/tcp': [{
				HostIp: '',
				HostPort: '2345'
			}],
			'2367/udp': [{
				HostIp: '',
				HostPort: '2346'
			}]
		})
		expect(ports.exposedPorts).to.deep.equal({
			'1000/tcp': {}
			'243/udp': {}
			'2344/tcp': {}
			'2354/tcp': {}
			'2367/udp': {}
			'53/tcp': {}
			'53/udp': {}
		})

	it 'correctly handles port ranges', ->
		s = Service.fromComposeObject({
			appId: '1234'
			serviceName: 'foo'
			releaseId: 2
			serviceId: 3
			imageId: 4
			expose: [
				1000,
				'243/udp'
			],
			ports: [
				'1000-1003:2000-2003'
			]
		}, { appName: 'test' })

		ports = s.generateExposeAndPorts()
		expect(ports.portBindings).to.deep.equal({
			'2000/tcp': [
				HostIp: ''
				HostPort: '1000'
			],
			'2001/tcp': [
				HostIp: ''
				HostPort: '1001'
			],
			'2002/tcp': [
				HostIp: ''
				HostPort: '1002'
			],
			'2003/tcp': [
				HostIp: ''
				HostPort: '1003'
			]
		})

		expect(ports.exposedPorts).to.deep.equal({
			'1000/tcp': {}
			'2000/tcp': {}
			'2001/tcp': {}
			'2002/tcp': {}
			'2003/tcp': {}
			'243/udp': {}
		})

	it 'should correctly handle large port ranges', ->
		@timeout(60000)
		s = Service.fromComposeObject({
			appId: '1234'
			serviceName: 'foo'
			releaseId: 2
			serviceId: 3
			imageId: 4
			ports: [
				'5-65536:5-65536/tcp'
				'5-65536:5-65536/udp'
			]
		}, { appName: 'test' })

		expect(s.generateExposeAndPorts()).to.not.throw

	it 'should correctly report implied exposed ports from portMappings', ->
		service = Service.fromComposeObject({
			appId: 123456,
			serviceId: 123456,
			serviceName: 'test',
			ports: [
				'80:80'
				'100:100'
			]
		}, { appName: 'test' })

		expect(service.config).to.have.property('expose').that.deep.equals(['80/tcp', '100/tcp'])

	describe 'parseMemoryNumber()', ->
		makeComposeServiceWithLimit = (memLimit) ->
			Service.fromComposeObject({
				appId: 123456
				serviceId: 123456
				serviceName: 'foobar'
				mem_limit: memLimit
			}, { appName: 'test' })

		it 'should correctly parse memory number strings without a unit', ->
			expect(makeComposeServiceWithLimit('64').config.memLimit).to.equal(64)

		it 'should correctly apply the default value', ->
			expect(makeComposeServiceWithLimit(undefined).config.memLimit).to.equal(0)

		it 'should correctly support parsing numbers as memory limits', ->
			expect(makeComposeServiceWithLimit(64).config.memLimit).to.equal(64)

		it 'should correctly parse memory number strings that use a byte unit', ->
			expect(makeComposeServiceWithLimit('64b').config.memLimit).to.equal(64)
			expect(makeComposeServiceWithLimit('64B').config.memLimit).to.equal(64)

		it 'should correctly parse memory number strings that use a kilobyte unit', ->
			expect(makeComposeServiceWithLimit('64k').config.memLimit).to.equal(65536)
			expect(makeComposeServiceWithLimit('64K').config.memLimit).to.equal(65536)

			expect(makeComposeServiceWithLimit('64kb').config.memLimit).to.equal(65536)
			expect(makeComposeServiceWithLimit('64Kb').config.memLimit).to.equal(65536)

		it 'should correctly parse memory number strings that use a megabyte unit', ->
			expect(makeComposeServiceWithLimit('64m').config.memLimit).to.equal(67108864)
			expect(makeComposeServiceWithLimit('64M').config.memLimit).to.equal(67108864)

			expect(makeComposeServiceWithLimit('64mb').config.memLimit).to.equal(67108864)
			expect(makeComposeServiceWithLimit('64Mb').config.memLimit).to.equal(67108864)

		it 'should correctly parse memory number strings that use a gigabyte unit', ->
			expect(makeComposeServiceWithLimit('64g').config.memLimit).to.equal(68719476736)
			expect(makeComposeServiceWithLimit('64G').config.memLimit).to.equal(68719476736)

			expect(makeComposeServiceWithLimit('64gb').config.memLimit).to.equal(68719476736)
			expect(makeComposeServiceWithLimit('64Gb').config.memLimit).to.equal(68719476736)

	describe 'getWorkingDir', ->
		makeComposeServiceWithWorkdir = (workdir) ->
			Service.fromComposeObject({
				appId: 123456,
				serviceId: 123456,
				serviceName: 'foobar'
				workingDir: workdir
			}, { appName: 'test' })

		it 'should remove a trailing slash', ->
			expect(makeComposeServiceWithWorkdir('/usr/src/app/').config.workingDir).to.equal('/usr/src/app')
			expect(makeComposeServiceWithWorkdir('/').config.workingDir).to.equal('/')
			expect(makeComposeServiceWithWorkdir('/usr/src/app').config.workingDir).to.equal('/usr/src/app')
			expect(makeComposeServiceWithWorkdir('').config.workingDir).to.equal('')

	describe 'Docker <-> Compose config', ->

		omitConfigForComparison = (config) ->
			return _.omit(config, ['running', 'networks'])

		it 'should be identical when converting a simple service', ->
			composeSvc = Service.fromComposeObject(configs.simple.compose, configs.simple.imageInfo)
			dockerSvc = Service.fromDockerContainer(configs.simple.inspect)

			composeConfig = omitConfigForComparison(composeSvc.config)
			dockerConfig = omitConfigForComparison(dockerSvc.config)
			expect(composeConfig).to.deep.equal(dockerConfig)

			expect(dockerSvc.isEqualConfig(composeSvc)).to.be.true


		it 'should correct convert formats with a null entrypoint', ->
			composeSvc = Service.fromComposeObject(configs.entrypoint.compose, configs.entrypoint.imageInfo)
			dockerSvc = Service.fromDockerContainer(configs.entrypoint.inspect)

			composeConfig = omitConfigForComparison(composeSvc.config)
			dockerConfig = omitConfigForComparison(dockerSvc.config)
			expect(composeConfig).to.deep.equal(dockerConfig)

			expect(dockerSvc.isEqualConfig(composeSvc)).to.equals(true)

		describe 'Networks', ->

			it 'should correctly convert networks from compose to docker format', ->
				makeComposeServiceWithNetwork = (networks) ->
					Service.fromComposeObject({
						appId: 123456,
						serviceId: 123456,
						serviceName: 'test',
						networks
					}, { appName: 'test' })

				expect(makeComposeServiceWithNetwork({
					'balena': {
						'ipv4Address': '1.2.3.4'
					}
				}).toDockerContainer({ deviceName: 'foo' }).NetworkingConfig).to.deep.equal({
					EndpointsConfig: {
						'123456_balena': {
							IPAMConfig: {
								IPv4Address: '1.2.3.4'
							},
							Aliases: []
						}
					}
				})

				expect(makeComposeServiceWithNetwork({
					balena: {
						aliases: [ 'test', '1123']
						ipv4Address: '1.2.3.4'
						ipv6Address: '5.6.7.8'
						linkLocalIps: [ '123.123.123' ]
					}
				}).toDockerContainer({ deviceName: 'foo' }).NetworkingConfig).to.deep.equal({
					EndpointsConfig: {
						'123456_balena': {
							IPAMConfig: {
								IPv4Address: '1.2.3.4'
								IPv6Address: '5.6.7.8'
								LinkLocalIPs: [ '123.123.123' ]
							}
							Aliases: [ 'test', '1123' ]
						}
					}
				})

			it 'should correctly convert Docker format to service format', ->
				dockerCfg = require('./data/docker-states/simple/inspect.json')
				makeServiceFromDockerWithNetwork = (networks) ->
					Service.fromDockerContainer(
						newConfig = _.cloneDeep(dockerCfg)
						newConfig.NetworkSettings = { Networks: networks }
					)

				expect(makeServiceFromDockerWithNetwork({
					'123456_balena': {
						IPAMConfig: {
							IPv4Address: '1.2.3.4'
						},
						Aliases: []
					}
				}).config.networks).to.deep.equal({
					'123456_balena': {
						'ipv4Address': '1.2.3.4'
					}
				})

				expect(makeServiceFromDockerWithNetwork({
					'123456_balena': {
						IPAMConfig: {
							IPv4Address: '1.2.3.4'
							IPv6Address: '5.6.7.8'
							LinkLocalIps: [ '123.123.123' ]
						}
						Aliases: [ 'test', '1123' ]
					}
				}).config.networks).to.deep.equal({
					'123456_balena': {
						ipv4Address: '1.2.3.4'
						ipv6Address: '5.6.7.8'
						linkLocalIps: [ '123.123.123' ]
						aliases: [ 'test', '1123' ]
					}
				})