Intelligent Code Completion for Vue Components

This challenge focuses on building a simplified code completion system for Vue components, specifically targeting the <template> section. Code completion is a crucial feature in modern IDEs, significantly boosting developer productivity by suggesting available properties, methods, and components. Your task is to create a TypeScript function that analyzes a Vue component's <script setup> section and generates a list of potential code completion suggestions for a given cursor position within its <template>.

Problem Description

You are tasked with creating a TypeScript function getCodeCompletionSuggestions that takes a Vue component's code (as a string) and a cursor position (as a number representing the character index within the code) as input. The function should parse the <script setup> section of the component, extract all declared variables, properties, methods, and imported components, and then return a list of relevant code completion suggestions based on the cursor position within the <template>.

What needs to be achieved:

• Parse the Vue component code to identify the <script setup> section.
• Extract all variables, properties, methods, and imported components declared within the <script setup> section.
• Analyze the cursor position within the <template> section.
• Generate a list of code completion suggestions relevant to the context around the cursor position.

Key Requirements:

• The function must be written in TypeScript.
• The function should handle basic Vue component syntax, including variable declarations, property assignments, method definitions, and component imports.
• The function should return an array of strings, where each string represents a potential code completion suggestion.
• The function should prioritize suggestions that are syntactically valid and contextually relevant to the cursor position.
• The function should ignore comments and strings when parsing.

Expected Behavior:

Given a Vue component's code and a cursor position within the <template>, the function should return a list of suggestions that are likely to be valid and useful for the developer. The suggestions should be based on the variables, properties, methods, and components declared in the <script setup> section.

Edge Cases to Consider:

• Component code without a <script setup> section.
• Component code with invalid syntax.
• Cursor position outside of the <template> section.
• Complex expressions within the <template> section.
• Nested components.
• Dynamic variable names.

Examples

Example 1:

Input:
```typescript
<template>
  <div>
    <p>{{ message }}</p>
    <button @click="handleClick">Click Me</button>
    <MyComponent :data="myData" />
  </div>
</template>

<script setup>
import MyComponent from './MyComponent.vue';

const message = 'Hello, Vue!';
const myData = { name: 'World' };

function handleClick() {
  console.log('Button clicked!');
}
</script>

cursorPosition: 32 (inside {{ message }})

Output:
["message"]
Explanation: The cursor is inside the `{{ message }}` interpolation. The function should suggest the variable `message` declared in the `<script setup>` section.

Example 2:

Input:
```typescript
<template>
  <div>
    <p>{{ message }}</p>
    <button @click="handleClick">Click Me</button>
    <MyComponent :data="myData" />
  </div>
</template>

<script setup>
import MyComponent from './MyComponent.vue';

const message = 'Hello, Vue!';
const myData = { name: 'World' };

function handleClick() {
  console.log('Button clicked!');
}
</script>

cursorPosition: 52 (inside handleClick)

Output:
["handleClick"]
Explanation: The cursor is inside the `@click` event handler, suggesting the method `handleClick`.

Example 3:

Input:
```typescript
<template>
  <div>
    <MyComponent :data="myData" />
  </div>
</template>

<script setup>
import MyComponent from './MyComponent.vue';

const myData = { name: 'World' };
</script>

cursorPosition: 25 (inside :data="myData")

Output:
["myData"]
Explanation: The cursor is inside the `:data` prop binding, suggesting the variable `myData`.

Constraints

• The input component code string will be at least 100 characters long.
• The cursor position will be a non-negative integer less than the length of the component code string.
• The function must return an array of strings. The array can be empty if no suggestions are found.
• The function should execute within 200ms for typical Vue component code.
• The function should only consider variables, properties, methods, and imported components declared within the <script setup> section.

Notes

• You don't need to implement a full-fledged parser. A simple regular expression-based approach is acceptable for this challenge.
• Focus on identifying the relevant keywords and patterns within the <script setup> section.
• Consider the context around the cursor position to prioritize suggestions. For example, if the cursor is inside a variable interpolation ({{ ... }}), suggest variables. If the cursor is inside an event handler (@click="..."), suggest methods.
• Error handling is not required. Assume the input component code is well-formed.
• This is a simplified version of code completion. A real-world implementation would involve more sophisticated parsing and semantic analysis.