Add solution for Challenge 30 by jrbarbati

[jrbarbati]

Challenge 30 Solution

Submitted by: @jrbarbati
Challenge: Challenge 30

Description

This PR contains my solution for Challenge 30.

Changes

• Added solution file to challenge-30/submissions/jrbarbati/solution-template.go

Testing

• Solution passes all test cases
• Code follows Go best practices

Thank you for reviewing my submission! 🚀

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 0dc6c64a-775e-4c25-98fd-acce21faf458

📥 Commits

Reviewing files that changed from the base of the PR and between dc5c3ed and f43675f.

📒 Files selected for processing (1)

• challenge-30/submissions/jrbarbati/solution-template.go

🚧 Files skipped from review as they are similar to previous changes (1)

• challenge-30/submissions/jrbarbati/solution-template.go

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Walkthrough

A new standalone Go program adds a public ContextManager interface and simpleContextManager implementation, with helpers for cancellable and timeout contexts, value attachment/retrieval, task execution with context-aware cancellation, and two demo functions (SimulateWork, ProcessItems).

Changes

Cohort / File(s)	Summary
Context Manager Implementation challenge-30/submissions/jrbarbati/solution-template.go	Adds ContextManager interface and NewContextManager constructor; implements cancellable/timeout/value contexts, ExecuteWithContext and WaitForCompletion helpers; exported SimulateWork and ProcessItems demo functions and a main example.

Sequence Diagram(s)

sequenceDiagram
    rect rgba(0,128,0,0.5)
    participant Caller
    end
    rect rgba(0,0,255,0.5)
    participant Manager
    end
    rect rgba(255,165,0,0.5)
    participant Worker
    end
    rect rgba(128,0,128,0.5)
    participant ContextRuntime
    end

    Caller->>Manager: NewContextManager() / Create context
    Caller->>Manager: ExecuteWithContext(ctx, task)
    Manager->>Worker: start goroutine(task)
    Worker->>ContextRuntime: perform work / check ctx.Done()
    alt ctx finished first
        ContextRuntime-->>Manager: ctx.Done() / ctx.Err()
        Manager-->>Caller: return ctx.Err()
    else task completes
        Worker-->>Manager: task returns error/nil
        Manager-->>Caller: return task result
    end

Loading

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• Add solution for Challenge 27 #55: Adds the same ContextManager and simpleContextManager with matching helpers in the same challenge directory.
• Add solution for Challenge 30 by kiramux #726: Implements identical API (ExecuteWithContext, WaitForCompletion, SimulateWork, ProcessItems) in the same file path.
• Add solution for Challenge 30 by berkkaradalan #821: Introduces equivalent ContextManager, implementation, and demo functions in the identical location.

Poem

🐰 I hop with timeouts, kind and spry,
I cancel worries on the fly,
Goroutines hum, contexts sing,
Values tucked like a secret spring,
Processed items—off we fly! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately reflects the main change: adding a solution for Challenge 30 submitted by jrbarbati.
Description check	✅ Passed	The description is directly related to the changeset, explaining the Challenge 30 solution submission with relevant details about changes and testing.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

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[coderabbitai]

Actionable comments posted: 2

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 1c823fd1-4833-4ba6-a62e-ae5f195bf5a9

📥 Commits

Reviewing files that changed from the base of the PR and between 6a002af and dc5c3ed.

📒 Files selected for processing (1)

• challenge-30/submissions/jrbarbati/solution-template.go

[github-actions]

🎉 Auto-merged!

This PR was automatically merged after 2 days with all checks passing.

Thank you for your contribution, @jrbarbati!