#!/usr/bin/env node

import { Tracer } from 'opentracing'

import { isNotificationMessage } from 'vscode-jsonrpc/lib/messages'

import {

MessageEmitter,

MessageLogOptions,

MessageWriter,

registerLanguageHandler,

RegisterLanguageHandlerOptions,

} from './connection'

import { RemoteLanguageClient } from './lang-handler'

import { FileLogger, StderrLogger } from './logging'

import { TypeScriptService, TypeScriptServiceOptions } from './typescript-service'

const packageJson = require('../package.json')

const program = require('commander')

const { initTracer } = require('jaeger-client')

program

.version(packageJson.version)

.option('-s, --strict', 'enables strict mode')

.option('-t, --trace', 'print all requests and responses')

.option('-l, --logfile [file]', 'log to this file')

.option('-j, --enable-jaeger', 'enable OpenTracing through Jaeger')

.parse(process.argv)

const logger = program.logfile ? new FileLogger(program.logfile) : new StderrLogger()

const tracer = program.enableJaeger

? initTracer({ serviceName: 'javascript-typescript-langserver', sampler: { type: 'const', param: 1 } })

: new Tracer()

const options: TypeScriptServiceOptions & MessageLogOptions & RegisterLanguageHandlerOptions = {

strict: program.strict,

logMessages: program.trace,

logger,

tracer,

}

const messageEmitter = new MessageEmitter(process.stdin, options)

const messageWriter = new MessageWriter(process.stdout, options)

const remoteClient = new RemoteLanguageClient(messageEmitter, messageWriter)

const service = new TypeScriptService(remoteClient, options)

// Add an exit notification handler to kill the process

messageEmitter.on('message', message => {

if (isNotificationMessage(message) && message.method === 'exit') {

logger.log(`Exit notification`)

process.exit(0)

}

})

registerLanguageHandler(messageEmitter, messageWriter, service, options)