Boost Code Quality: Refactor CreateIssueWithType

by Admin 49 views
Boost Code Quality: Refactor `createIssueWithType`

Hey guys! Let's dive into a neat little code refactoring that's gonna make our lives easier and our code cleaner. We're talking about the createIssueWithType function in our github/issue-management.ts file. Right now, it's got a bit too many parameters, which can be a pain to work with. SonarCloud flagged it with a MAJOR issue (rule typescript:S107), so let's get it fixed!

The Problem: Too Many Parameters

So, the current version of createIssueWithType looks like this:

export async function createIssueWithType(
  owner: string,
  repo: string,
  title: string,
  body?: string,
  issueTypeId?: string,
  labelIds?: string[],
  assigneeIds?: string[],
  milestoneId?: string,
  projectIds?: string[],
): Promise<{ number: number, nodeId: string }>

See all those parameters? Nine of them, to be exact. SonarCloud says we should have no more than seven. Too many parameters make the function harder to read, understand, and maintain. It's like trying to juggle too many balls at once – eventually, something's gonna drop! Plus, it can be a hassle to remember the order and meaning of each parameter every time you call the function. It's time for a change!

The current function signature is:

  • owner: string
  • repo: string
  • title: string
  • body?: string
  • issueTypeId?: string
  • labelIds?: string[]
  • assigneeIds?: string[]
  • milestoneId?: string
  • projectIds?: string[]

This isn't ideal for a few reasons. First off, it's a bit of an eyesore. All those parameters crammed together make it tough to quickly grasp what the function does. Secondly, it's hard to read and understand. Third, if we ever need to add a new option, we'd have to change the function signature, which could break existing code. Nobody wants that! That's where the parameter object pattern comes in to save the day.

The Solution: Parameter Object Pattern

The solution is to use the parameter object pattern. This is a simple but effective technique where we bundle all the function's parameters into a single object. This way, we only have one parameter to pass to the function, making it cleaner and easier to work with. Here's how we're gonna do it:

First, we define an interface called CreateIssueOptions:

interface CreateIssueOptions {
  owner: string
  repo: string
  title: string
  body?: string
  issueTypeId?: string
  labelIds?: string[]
  assigneeIds?: string[]
  milestoneId?: string
  projectIds?: string[]
}

This interface acts as a blueprint for our parameter object. It clearly defines all the properties the object should have. Then, we change the createIssueWithType function to accept a single parameter of this type:

export async function createIssueWithType(
  options: CreateIssueOptions
): Promise<{ number: number, nodeId: string }>

See how much cleaner that looks? Instead of nine separate parameters, we now have just one: an options object. Inside the function, we can access the individual properties of the options object to get the values we need. This is a much more elegant and manageable approach.

The new function signature is:

  • options: CreateIssueOptions

Parameter Object Pattern Benefits

Using the parameter object pattern is like upgrading from a clunky old bike to a sleek, modern car. It brings a lot of advantages:

  • Named Parameters (Self-Documenting): When you use the parameter object pattern, the names of the properties in the object serve as named parameters. This makes it super clear what each value represents. When someone reads the code, they immediately understand the purpose of each setting. It's like having little labels that tell you what everything does.
  • Easy to Extend Without Breaking Changes: This pattern makes it simple to add new options later without messing up existing code. If we need a new parameter, we just add a new property to the CreateIssueOptions interface. Existing callers of createIssueWithType don't need to change at all. This makes our code much more flexible and resilient to future changes.
  • Optional Parameters are Clear: Optional parameters, which are indicated by a question mark, are obvious when using the parameter object pattern. You can see at a glance which settings are optional and which are required. This makes the code easier to understand and use.
  • Resolves the SonarCloud Issue: And, of course, this refactoring gets rid of the SonarCloud MAJOR issue. We're not just making the code better; we're also making sure it meets our quality standards!

Updating the Code: Steps to Success

Alright, let's get down to the nitty-gritty of making this happen. Here's the plan:

  1. Update the Function Signature: We'll change the signature of createIssueWithType to use the CreateIssueOptions object, as shown above.
  2. Update All Callers: We need to update every place in our code where createIssueWithType is called to use the new signature. This means passing in an object that matches the CreateIssueOptions interface.
  3. Test, Test, Test: We'll make sure all existing tests still pass after the changes. This is super important to ensure we haven't broken anything. We might need to adjust the tests to accommodate the new signature.
  4. Add New Tests: We'll add new tests to cover the new signature. This helps us make sure the function works as expected with the new parameter object.
  5. Resolve SonarCloud Issue: Once everything is working, we'll mark the SonarCloud issue as resolved. Boom, problem solved!

Acceptance Criteria: Ensuring a Smooth Transition

To make sure this change goes smoothly, we have some clear acceptance criteria:

  • Update function signature to use parameter object: This is the core of our refactoring.
  • Update all callers to use the new signature: We need to make sure everywhere the function is used is updated.
  • All existing tests pass: We must ensure we haven't broken any existing functionality.
  • Add tests for the new signature: New tests will confirm the new implementation works correctly.
  • SonarCloud issue resolved: And finally, we'll get that SonarCloud issue marked as resolved.

Related Changes and References

This refactoring relates to a previous pull request (#225), which addressed a MINOR issue. You can check it out to see another example of how we strive for high-quality code. Also, this refactoring aligns with our engineering standards, which emphasize small, safe changes to maintain code health. For more details on the SonarCloud rule, check out the SonarCloud Rule S107. Remember, we're aiming for small, safe changes to keep our codebase healthy and maintainable!

Wrapping Up

So there you have it, guys. Refactoring createIssueWithType to use the parameter object pattern is a simple but impactful change. It improves code readability, makes it easier to maintain, and resolves a SonarCloud issue. It's a win-win for everyone involved!