Remove dead code, fix SQL injection, simplify complex logic

[Copilot]

Cleaned up technical debt: removed unused files, fixed security vulnerability, reduced cognitive complexity.

Deletions

• 5 empty files: python/point.py, python/tests/test_calculator.py, terraform/iac.tf, diag.mmd, rust/server.rs (incomplete, missing tcp module)
• 3 empty directories: rust/, terraform/, python/tests/
• Unused imports: Removed System.IO, System.Linq, Microsoft.Extensions.FileProviders from DotnetApp/Program.cs

Security Fix

Fixed SQL injection in python/sql.py:

# Before
query = "SELECT * FROM users WHERE username = '" + username + "'"
cursor.execute(query)

# After
query = "SELECT * FROM users WHERE username = %s"
cursor.execute(query, (username,))

Also fixed incomplete add_user() function (missing connect() call).

Code Simplification

Refactored TaskItem.CalculateTaskScore() using pattern matching to reduce cognitive complexity:

// Before: nested if/else with score accumulation
private int CalculatePriorityScore() {
    int score = 0;
    if (Priority <= 0) {
        score += 1;
    } else if (Priority == 1) {
        score += 10;
        if (Status == "pending") {
            score += 3;
        }
    }
    // ... more nesting
}

// After: switch expressions
private int CalculatePriorityScore() {
    return Priority switch {
        <= 0 => 1,
        1 => Status == "pending" ? 13 : 10,
        2 => CalculatePriority2Score(),
        _ => 1
    };
}

Net change: -98 lines (139 deleted, 41 added)

Original prompt

Can you celan up this repo and reduce any existing tech debt

Custom agent used: Janitor
Perform janitorial tasks on any codebase including cleanup, simplification, and tech debt remediation.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[sonarqubecloud]

Quality Gate failed

Failed conditions
E Security Rating on New Code (required ≥ A)

See analysis details on SonarQube Cloud

Catch issues before they fail your Quality Gate with our IDE extension SonarQube for IDE