fix: simplified the index.ts

Author: DheerajGBhatt

bin/index.ts

@@ -6,41 +6,61 @@ import {
   addModuleCLI,
 } from "../src/roverCLI/roverGenerateCLI"
 import { deployCLI } from "../src/roverCLI/roverDeployCLI"
-
 import * as cliConfig from "../src/configs/cliConfig"
+import { version } from "../package.json"
 import * as util from "../src/utilities/cliUtil"
 
-import { version } from "../package.json"
+function handleInitCommand(): Promise<void> {
+  // eslint-disable-next-line no-async-promise-executor
+  return new Promise(async (resolve) => {
+    const editedSam = await util.confirmation()
+    if (editedSam === "create new SAM project") {
+      await createSAMCLI()
+    } else if (editedSam === "add components to existing SAM") {
+      await addComponentCLI()
+    } else if (editedSam === "add modules to existing SAM") {
+      await addModuleCLI()
+    }
+    resolve()
+  })
+}
+
+async function handleDeployCommand(): Promise<void> {
+  await deployCLI()
+}
+
+function handleVersionCommand(): void {
+  console.log(version)
+}
+
+function handleUnknownCommand(): void {
+  console.log(cliConfig.commandError(process.argv.slice(2)))
+}
 
 async function run(argv: Array<string>): Promise<void> {
   try {
     if (!roverHelpers.npmrootTest()) {
       throw new Error(cliConfig.globalError)
     }
-    const commandErrors = cliConfig.commandError(argv)
-    if (argv.length !== 1) {
-      throw new Error(commandErrors)
-    }
-    if (argv[0] === "init") {
-      const editedSam = await util.confirmation()
-      if (editedSam === "create new SAM project") {
-        await createSAMCLI()
-      } else if (editedSam === "add components to existing SAM") {
-        await addComponentCLI()
-      } else if (editedSam === "add modules to existing SAM") {
-        await addModuleCLI()
-      }
-    } else if (argv[0] === "deploy") {
-      await deployCLI()
-    } else if (argv[0] === "-v" || argv[0] === "--version") {
-      // show current package version in the console
-      console.log(version)
-    } else {
-      console.log(commandErrors)
+
+    switch (argv[0]) {
+      case "init":
+        await handleInitCommand()
+        break
+      case "deploy":
+        await handleDeployCommand()
+        break
+      case "-v":
+      case "--version":
+        handleVersionCommand()
+        break
+      default:
+        handleUnknownCommand()
     }
   } catch (error) {
     console.log("Error: ", error as Error)
     //.message)
   }
 }
+
 run(process.argv.slice(2))