feat(commands): added addRemoveComment command

package.json

@@ -86,6 +86,14 @@
         "icon": "./assets/images/docs.png"
       }
     ],
+    "keybindings": [
+      {
+        "command": "sasjs-for-vscode.addRemoveComment",
+        "key": "ctrl+alt+l",
+        "mac": "cmd+/",
+        "win": "ctr+/"
+      }
+    ],
     "configuration": {
       "title": "SASJS",
       "properties": {

src/commands/addRemoveComment/addRemoveComment.ts

@@ -0,0 +1,81 @@
+import { window, ExtensionContext, commands, Range } from 'vscode'
+import { MockedActiveEditor } from '../../types/spec/activeEditor'
+
+export class AddRemoveCommentCommand {
+  private commentStartRegExp = /^\/\*\s{0,1}/
+  private commentEndRegExp = /\s{0,1}\*\/$/
+
+  constructor(private context: ExtensionContext) {}
+
+  initialise = () => {
+    const commentOutLineCommand = commands.registerCommand(
+      'sasjs-for-vscode.addRemoveComment',
+      () => this.addRemoveComment()
+    )
+
+    this.context.subscriptions.push(commentOutLineCommand)
+  }
+
+  private isWrappedWithComments(line: string) {
+    return (
+      this.commentStartRegExp.test(line) && this.commentEndRegExp.test(line)
+    )
+  }
+
+  private addRemoveCommentToLine(line: string) {
+    const commentStartRegExp = /^\/\*\s{0,1}/
+    const commentEndRegExp = /\s{0,1}\*\/$/
+
+    const lineWithoutComments = line
+      .replace(commentStartRegExp, '')
+      .replace(commentEndRegExp, '')
+
+    if (this.isWrappedWithComments(line)) {
+      return lineWithoutComments
+    } else {
+      return `/* ${lineWithoutComments} */`
+    }
+  }
+
+  private addRemoveComment = async (
+    mockedActiveEditor?: MockedActiveEditor // INFO: used for unit tests
+  ) => {
+    const activeEditor = mockedActiveEditor || window.activeTextEditor
+
+    if (activeEditor) {
+      const { start, end } = activeEditor.selection
+      const text = activeEditor.document.getText()
+      const lines = text.split(`\n`) || []
+
+      const editedLines = lines
+        .reduce((acc: string[], line: string, i: number) => {
+          if (i >= start.line && i <= end.line) {
+            acc.push(this.addRemoveCommentToLine(line))
+          }
+
+          return acc
+        }, [])
+        .join(`\n`)
+
+      // INFO: exit point for unit test
+      if (mockedActiveEditor) {
+        return editedLines
+      }
+
+      activeEditor.edit((editBuilder) => {
+        const range = new Range(start.line, 0, end.line, lines[end.line].length)
+
+        editBuilder.replace(range, editedLines)
+      })
+
+      // INFO: move cursor to the middle of the empty comment
+      if (editedLines.length === 6 && this.isWrappedWithComments(editedLines)) {
+        commands.executeCommand('cursorMove', {
+          to: 'left',
+          by: 'character',
+          value: 3
+        })
+      }
+    }
+  }
+}

src/types/spec/activeEditor.ts

@@ -0,0 +1,5 @@
+export interface MockedActiveEditor {
+  document: { getText: () => string }
+  selection: { start: { line: number }; end: { line: number } }
+  edit: () => void
+}