refactor: optimize ;run command and expand its judge0 language alias map

[calebephrem]

…s map

[beetle-ai]

Summary by Beetle

This PR refactors the ;run command to significantly improve language detection and code execution reliability. The primary enhancement is the introduction of a comprehensive canonical language alias mapping system that replaces the previous limited alias dictionary. This change enables the bot to recognize a much wider variety of language names and aliases (e.g., py, python2, python3, pyml all map to Python), making the command more user-friendly and robust. Additionally, the refactor includes code cleanup by removing commented-out code and improving type safety with proper TypeScript generics.

📁 File Changes Summary (Consolidated across all commits):

File	Status	Changes	Description
src/commands/code/run.ts	Modified	+85/-42	Replaced simple alias dictionary with comprehensive CANONICAL_GROUPS mapping system covering 40+ programming languages with multiple aliases each. Refactored findLanguageId() function to use canonical name resolution with exact and fuzzy matching. Removed commented-out code blocks and improved TypeScript type safety with ActionRowBuilder<ButtonBuilder> generic.

Total Changes: 1 file changed, +85 additions, -42 deletions

🗺️ Walkthrough:

graph TD
A["User invokes ;run command"] --> B["Parse code block and language"]
B --> C["Clean input: lowercase, remove special chars"]
C --> D{"Check ALIAS_MAP"}
D -->|"Found"| E["Map to canonical name"]
D -->|"Not found"| F["Use input as-is"]
E --> G["Search Judge0 languages"]
F --> G
G --> H{"Exact match?"}
H -->|"Yes"| I["Return language ID"]
H -->|"No"| J["Fuzzy match search"]
J --> K{"Fuzzy match found?"}
K -->|"Yes"| I
K -->|"No"| L["Return null"]
I --> M["Execute code via Judge0 API"]
M --> N["Display results with embed"]
CANON["CANONICAL_GROUPS: 40+ languages Each with multiple aliases Example: python → py, py2, py3, pyml"]
D -.-> CANON

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🎯 Key Changes:

• Comprehensive Language Alias System: Introduced CANONICAL_GROUPS object mapping 40+ programming languages to their common aliases (e.g., Python recognizes python, py, python2, python3, py2, py3, pythonml, pyml, mlpy)
• Improved Language Resolution: Refactored findLanguageId() to use a two-stage matching process: exact canonical name match first, then fuzzy matching as fallback
• Enhanced Input Normalization: Added robust input cleaning that removes backticks, spaces, hyphens, and underscores before matching
• Code Quality Improvements: Removed multiple blocks of commented-out code (stdout/stderr field additions) and improved TypeScript type safety with proper generics
• Better Maintainability: Centralized alias management makes it easy to add new language aliases without modifying the matching logic

📊 Impact Assessment:

• Security: ✅ No security concerns introduced. The refactor maintains the existing Judge0 API integration without adding new external dependencies or changing authentication flows. Input sanitization is improved through better normalization.
• Performance: ✅ Slight improvement expected. The pre-computed ALIAS_MAP (built once at module load) provides O(1) lookup time for alias resolution, replacing the previous linear search through a small dictionary. The two-stage matching (exact then fuzzy) optimizes for common cases while maintaining fallback support.
• Maintainability: ✅✅ Significantly improved. The CANONICAL_GROUPS structure is self-documenting and makes it trivial to add new language aliases. Removing 20+ lines of commented code reduces noise. The explicit typing with ActionRowBuilder<ButtonBuilder> prevents type errors at compile time. The separation of concerns (alias mapping → canonical resolution → language lookup) makes the code easier to understand and test.
• Testing: ⚠️ No test changes included in this PR. Recommend adding unit tests for:
• Alias resolution edge cases (e.g., c++, c#, f# with special characters)
• Case insensitivity verification across all 40+ languages
• Fuzzy matching behavior with partial matches
• Null handling for invalid language inputs

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Severity Threshold: Medium — Balanced feedback — medium and high severity issues only. — Change in Settings
Custom Rules: Define your own review rules — Set Custom Rules
PR Summary: Configure PR summary — Change in Settings

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