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Logger from 'nightingale/src';\nimport { hostname } from 'os';\nimport createSocketClient from 'socket.io-client';\nimport { serverHost, serverPort, token, device } from './params';\nimport { getTime as getConfigTime } from './config';\nimport { onConfigUpdated } from './manager';\nimport * as screen from './commands/screen';\nimport * as display from './commands/display';\nimport availableDisplays from './utils/availableDisplays';\nimport findNetworkInterface from './utils/networkInterface';\nimport { selfUpdate } from './update';\nimport pkg from '../../package.json';\nimport { runSync } from './utils/exec';\n\nconst logger = new Logger('app:client');\n\nconst socket =\n serverHost &&\n serverPort &&\n createSocketClient(`${serverHost}:${serverPort}/raspberry-client`, {\n autoConnect: false,\n reconnection: true,\n reconnectionDelay: 500,\n reconnectionDelayMax: 120000, // 2 minutes\n reconnectionAttempts: Infinity,\n timeout: 4000,\n transports: ['websocket'],\n });\n\nconst emit = (eventName: string, ...args: Array<any>) => {\n if (!socket) {\n logger.warn('cannot emit', { eventName, args });\n return;\n }\n\n logger.debug('emit', { eventName, args });\n return socket.emit(eventName, ...args);\n};\n\nexport const sendUpdate = (data: Object): void => {\n emit('update', data);\n};\n\nif (socket) {\n // wait 1s before connecting\n setTimeout(() => {\n logger.debug('Connecting', { serverHost, serverPort });\n socket.on('connect_error', err =>\n logger.error('connect error', { serverHost, serverPort, errMessage: err.message }),\n );\n socket.on('reconnect_error', err =>\n logger.debug('reconnect error', { serverHost, serverPort, err }),\n );\n\n socket.on('disconnect', () => logger.warn('disconnected'));\n\n socket.on('reconnect', () => logger.success('reconnected'));\n\n socket.on('connect', () => {\n logger.success('connected');\n\n const networkInterface = findNetworkInterface();\n const screenState = screen.getCurrentScreenState();\n emit('hello', {\n configTime: getConfigTime(),\n client: { name: pkg.name, version: pkg.version },\n token,\n screenState, // deprecated\n ...networkInterface,\n hostname: hostname(),\n device,\n screen: {\n state: screenState,\n screens: screen.getCurrentScreens(),\n },\n availableDisplays,\n });\n });\n\n socket.on('updateConfig', onConfigUpdated);\n socket.on('changeConfig', onConfigUpdated);\n\n socket.on('selfUpdate', () => selfUpdate());\n\n socket.on('action', (action: string) => {\n logger.info('received action', { action });\n switch (action) {\n case 'self-upgrade':\n case 'self-update':\n case 'selfUpdate':\n return selfUpdate();\n\n case 'screen-off':\n return screen.off();\n case 'screen-on':\n return screen.on();\n\n case 'refresh':\n return display.refresh();\n\n case 'reboot':\n sendUpdate({ rebooting: true });\n display.stop();\n return runSync('reboot');\n\n case 'poweroff':\n sendUpdate({ rebooting: true });\n display.stop();\n return runSync('poweroff');\n }\n\n logger.warn(`unknown action: ${action}`);\n });\n\n socket.on('poll-data', () => {\n logger.debug('poll data');\n const screenshotBuffer = screen.screenshot();\n if (!screenshotBuffer) {\n return;\n }\n\n logger.debug('send screenshot');\n socket.emit('update-data', { screenshotBuffer });\n });\n\n socket.connect();\n }, 1000);\n}\n\nexport function close(): Promise<any> | void {\n if (!socket || !socket.connected) {\n return;\n }\n\n return new Promise(resolve => {\n logger.info('Closing...');\n socket.once('disconnect', () => {\n logger.info('Closed');\n resolve();\n });\n socket.close();\n });\n}\n"]} |