split options & add helper

libs/remix-simulator/bin/ethsim

@@ -23,22 +23,37 @@ program
   .command('start')
   .option('-p, --port [port]', 'specify port', 8545)
   .option('-b, --ip [host]', 'specify host', '127.0.0.1')
-  .option('-c, --coinbase [coinbase]', 'specify coinbase', '0x0000000000000000000000000000000000000000')
   .option('--rpc', 'run rpc server only', true)
   .option('--details', 'display payloads for every requests and their responses', false)
-  .action((option) => {
+  .option('-c, --coinbase [coinbase]', 'specify coinbase', '0x0000000000000000000000000000000000000000')
-    console.log('coinbase: ', option.coinbase)
+  .option('-f, --fork [fork]', 'specify fork name')
+  .option('-n, --nodeUrl [nodeUrl]', 'specify node url')
+  .option('-bn, --blockNumber [blockNumber]', 'specify block Number')
+  .option('-s, --stateDb [stateDb]', 'specify state database')
+  .option('-bs, --blocks [blocks]', 'specify blocks')
+  .action((option, env) => {
+    env.outputHelp()
+    console.log('\n')
+    console.log('Usage:')
+    console.log('remix-simulator start')
+    console.log('remix-simulator start -n <node url> -f cancun -bn latest')
+    console.log('\n')
+    console.log('Command line options:')
+    console.log('port: ', option.port)
+    console.log('host: ', option.ip)
     console.log('rpc: ', option.rpc)
     console.log('details: ', option.details)
-    console.log('host: ', option.ip)
+    console.log('\n')
-    console.log('port: ', option.port)
+    console.log('Provider options:')
+    console.log('coinbase: ', option.coinbase)
+    console.log('fork: ', option.fork)
+    console.log('nodeUrl: ', option.nodeUrl)
+    console.log('blockNumber: ', option.blockNumber)
+    console.log('stateDb: ', option.stateDb)
+    console.log('blocks: ', option.blocks)
     const { Server } = require('../src/server')
-    const server = new Server({
+    const server = new Server(option)
-      coinbase: option.coinbase,
+    server.start(option)
-      rpc: option.rpc,
-      details: option.details
-    })
-    server.start(option.ip, option.port)
   })
 
 program.parse(process.argv)

libs/remix-simulator/src/server.ts

@@ -8,19 +8,17 @@ const app = express()
 
 export class Server {
   provider
-  rpcOnly
 
-  constructor (options?:ProviderOptions) {
+  constructor (options?: ProviderOptions) {
     this.provider = new Provider(options)
     this.provider.init().then(() => {
       log('Provider initiated')
     }).catch((error) => {
       log(error)
     })    
-    this.rpcOnly = options.rpc
   }
 
-  start (host, port) {
+  start (cliOptions: CliOptions) {
     const wsApp = expressWs(app)
 
     app.use(cors())
@@ -31,7 +29,7 @@ export class Server {
       res.send('Welcome to remix-simulator')
     })
 
-    if (this.rpcOnly) {
+    if (cliOptions.rpc) {
       app.use((req, res) => {
         this.provider.sendAsync(req.body, (err, jsonResponse) => {
           if (err) {
@@ -57,12 +55,12 @@ export class Server {
       })
     }
 
-    app.listen(port, host, () => {
+    app.listen(cliOptions.port, cliOptions.ip, () => {
-      if (!this.rpcOnly) {
+      if (!cliOptions.rpc) {
-        log('Remix Simulator listening on ws://' + host + ':' + port)
+        log('Remix Simulator listening on ws://' + cliOptions.ip + ':' + cliOptions.port)
         log('http json-rpc is deprecated and disabled by default. To enable it use --rpc')
       } else {
-        log('Remix Simulator listening on http://' + host + ':' + port)
+        log('Remix Simulator listening on http://' + cliOptions.ip + ':' + cliOptions.port)
       }
     })
   }