Algerian Mobile Phone Number Laravel Package

Technical Evaluation

Architecture Fit

• Domain-Driven Design (DDD) Alignment: The package aligns well with DDD principles by implementing an immutable value object (AlgerianMobilePhoneNumber), which is ideal for representing domain entities like phone numbers in a type-safe manner.
• Framework Agnostic: While Laravel-specific, the package is not tightly coupled to Laravel, making it reusable in other PHP applications (e.g., Symfony, Lumen, or standalone CLI tools).
• Validation-First Approach: The package enforces validation at instantiation (e.g., rejecting invalid formats), which is a best practice for domain integrity.
• Limited Scope: Focuses exclusively on Algerian mobile numbers, which may require additional logic for broader use cases (e.g., international numbers).

Integration Feasibility

• Composer Integration: Simple composer require installation with no Laravel-specific dependencies, reducing friction.
• Laravel-Specific Adaptations:
  • Can be used in Laravel models (e.g., User phone number field) via accessors/mutators or casts.
  • Compatible with Laravel Validation (e.g., custom rule for Algerian numbers).
  • Works with Laravel Scout or database columns if stored as strings.
• Testing Compatibility: Unit tests can be integrated into Laravel’s testing suite (e.g., PHPUnit or Pest).

Technical Risk

• Stagnation Risk: Last release in 2020 with no recent activity (24 stars, 2.91 score). Potential for unmaintained dependencies or breaking changes in future PHP/Laravel versions.
  • Mitigation: Fork the repo or wrap the package in a compatibility layer to isolate changes.
• Limited Format Support: Only supports space/dash-separated formats (no dots, parentheses, or raw international formats like +2136XXXXXXXX).
  • Mitigation: Pre-process input in Laravel middleware/validation before passing to the package.
• No Laravel-Specific Features: Lacks Laravel-specific utilities (e.g., Eloquent model binding, API resource formatting).
  • Mitigation: Build thin wrappers for Laravel integration (e.g., AlgerianPhoneNumber::fromRequest($request)).

Key Questions

1. Is the package’s immutability a requirement for our use case?
   • If mutable phone numbers are needed (e.g., for editing), a wrapper class may be necessary.
2. How will we handle edge cases not covered by the package?
   • Example: Invalid formats, non-Algerian numbers, or future carrier codes.
3. What’s the long-term maintenance plan?
   • Should we fork the repo or accept stagnation risks?
4. Does the package conflict with existing phone-number libraries?
   • Example: libphonenumber (Google’s library) or egulias/email-validator-style packages.
5. How will we test integration in Laravel’s ecosystem?
   • Example: API validation, database storage, or real-time carrier detection.

Integration Approach

Stack Fit

• Laravel Compatibility:

  • No framework dependencies: Works in Laravel 8+ (PHP 7.4+) without conflicts.
  • Ideal for:
    • Validation: Custom Laravel validation rule.
    • Domain Models: Immutable phone number field in Eloquent models.
    • APIs: Request/response formatting (e.g., AlgerianMobilePhoneNumber::fromString($request->phone)).
  • Challenges:
    • No native support for Laravel’s hasMany/belongsTo relationships (must store as string).
    • No database column type (e.g., algerian_phone_number enum).

• Alternative Stacks:

  • Symfony: Works as a standalone value object.
  • Livewire/Inertia: Can be used in form validation.
  • CLI/Console: Useful for data migration scripts.

Migration Path

1. Phase 1: Proof of Concept (PoC)
   • Install the package and test in a sandbox Laravel project.
   • Verify:
     • Input parsing (e.g., 06-99-00-00-00 → valid object).
     • Carrier detection (isMobilis(), isDjezzy()).
     • Edge cases (e.g., +213699000000, 0799000000).
2. Phase 2: Laravel Integration
   • Option A: Validation Rule

     use Cherif\AlgerianMobilePhoneNumber\AlgerianMobilePhoneNumber;
     use Illuminate\Validation\Rule;
     
     Rule::macro('algerian_phone', function () {
         return function ($attribute, $value, $fail) {
             try {
                 AlgerianMobilePhoneNumber::fromString($value);
             } catch (\InvalidArgumentException) {
                 $fail('The '.$attribute.' must be a valid Algerian mobile number.');
             }
         };
     });
     

   • Option B: Eloquent Cast

     use Illuminate\Database\Eloquent\Casts\Attribute;
     
     protected function phoneNumber(): Attribute {
         return Attribute::make(
             get: fn ($value) => $value,
             set: fn ($value) => AlgerianMobilePhoneNumber::fromString($value)->asString(),
         );
     }
     

3. Phase 3: Full Adoption
   • Replace raw phone number storage with the value object.
   • Update API contracts, database migrations, and business logic to use the object.

Compatibility

• PHP Version: Requires PHP 7.4+ (Laravel 8+ compatible).
• Laravel Version: Tested with Laravel 8/9/10 (no framework-specific code).
• Database: Stores as string (no schema changes needed).
• Third-Party Tools:
  • Laravel Scout: Requires custom serialization.
  • Laravel Notifications: May need wrapper for SMS gateways.

Sequencing

1. Start with Validation: Replace manual regex validation with the package.
2. Domain Layer: Introduce the value object in Eloquent models and services.
3. API Layer: Use in request validation and response formatting.
4. UI Layer: Integrate with forms (e.g., Livewire/Inertia) and frontend validation.
5. Legacy Migration: Gradually replace stored phone numbers in the database.

Operational Impact

Maintenance

• Pros:
  • MIT License: No legal concerns.
  • Simple API: Easy to understand and maintain.
  • Immutable Design: Reduces side-effect risks.
• Cons:
  • No Active Maintenance: Risk of PHP 8.2+ compatibility issues.
    • Action: Pin version in composer.json or fork the repo.
  • Limited Features: May require custom extensions (e.g., carrier-specific logic).
• Long-Term Strategy:
  • Monitor for forks or alternative packages.
  • Consider wrapping the package to abstract future changes.

Support

• Documentation: Basic but sufficient (README covers core usage).
  • Gap: No Laravel-specific examples (e.g., API resources, testing).
• Community: Small community (24 stars, 2.91 score).
  • Workaround: Create internal docs or GitHub issues for clarifications.
• Debugging:
  • Clear error messages for invalid inputs (e.g., InvalidArgumentException).
  • No logging integration: May need custom logging for invalid attempts.

Scaling

• Performance:
  • Lightweight: Minimal overhead for validation/parsing.
  • No external dependencies: Scales well in high-traffic APIs.
• Database:
  • Storage: Still stored as string (no performance gain).
  • Indexing: Works with standard LIKE or = queries.
• Distributed Systems:
  • Serializable: Can be JSON-encoded for Redis/Laravel Cache.
  • Queue Jobs: Safe to pass between workers (immutable).

Failure Modes

Ramp-Up