feat: refactor session management and API usage

- Add an import statement for the `get` function from `./utils/env.js`
- Add a constant for `API_ENDPOINT` using the `get` function
- Remove the `sessionId` constant declaration
- Add an `async` function `getSessionId` for fetching session ID
- Add an `async` function `main` for the main program logic
- Initialize `sessionId` using the command line argument or by calling `getSessionId`
- Add a console log statement for the session ID
- Remove the `if` statement for checking `sessionId` existence
- Update the socket URL to use `API_ENDPOINT`
- Add a `socket.on` event listener for the `close` event
- Update the condition for checking the `key` value in `stdin.on` event listener
- Call the `main` function at the end of the file

Signed-off-by: wancat <wancat@wancat.cc>

server/src/client.js

@@ -1,37 +1,60 @@
+/* eslint-disable no-underscore-dangle */
 import { stdin, stdout, exit } from 'process'
 import { io } from 'socket.io-client'
+import { get } from './utils/env.js'
+
+const API_ENDPOINT = get('API_ENDPOINT', 'http://localhost:3000')
 
 stdin.setRawMode(true)
 stdin.resume()
 stdin.setEncoding('utf8')
 
-const sessionId = process.argv[2]
+async function getSessionId() {
-console.log(`Session ID: ${sessionId}`)
+  const res = await fetch(`${API_ENDPOINT}/api/v1/sessions`, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify({
+      quest_id: 'helloworld',
+    }),
+  })
+  const data = await res.json()
+  return data._id
+}
 
-const socket = io('ws://localhost:3000', {
+async function main() {
-  query: {
+  const sessionId = process.argv[2] || (await getSessionId())
-    session_id: sessionId,
+  console.log(`Session ID: ${sessionId}`)
-  },
+  if (!sessionId) exit()
-})
 
-socket.on('open', function open() {
+  const socket = io('ws://localhost:3000', {
-  console.log('Connected to the server.')
+    query: {
-})
+      session_id: sessionId,
+    },
+  })
 
-socket.on('message', function incoming(data) {
+  socket.on('open', function open() {
-  stdout.write(data)
+    console.log('Connected to the server.')
-})
+  })
 
-socket.on('close', function close() {
+  socket.on('message', function incoming(data) {
-  console.log('Disconnected from the server.')
+    stdout.write(data)
-  exit()
+  })
-})
 
-stdin.on('data', (key) => {
+  socket.on('close', function close() {
-  if (key === '\u0003') {
+    console.log('Disconnected from the server.')
-    socket.close()
     exit()
-  } else {
+  })
-    socket.send(key)
+
-  }
+  stdin.on('data', (key) => {
-})
+    if (key === '\u0004') {
+      socket.close()
+      exit()
+    } else {
+      socket.send(key)
+    }
+  })
+}
+
+main()