GitAuto: [FEATURE] Add a Dependency Inversion Container Class to Pancake

[gitauto-ai]

Resolves #235

What is the feature

This pull request introduces a Dependency Inversion Container class to the Pancake framework. The DIContainer class implements the PSR-11 ContainerInterface and is responsible for:

• Service Registration: Allowing services (classes) to be registered with the container.
• Service Resolution: Resolving and providing instances of registered services, including their dependencies.
• Lifecycle Management: Supporting singleton (shared) and transient instances for services.

Additionally, this PR includes unit and integration tests to ensure the DI container functions correctly and integrates seamlessly within the Pancake framework. Documentation has been updated with usage examples for registering and resolving services.

Why we need the feature

Introducing a DI container enhances the modularity and flexibility of the Pancake framework by:

• Simplifying Dependency Management: Services can declare their dependencies, and the container will automatically resolve them.
• Improving Code Maintenance: Decouples class implementations from their dependencies, making the codebase easier to maintain and extend.
• Facilitating Testing: Makes it easier to mock dependencies during testing by centralizing service creation.
• Adhering to Standards: Implements the PSR-11 standard, promoting interoperability with other libraries and frameworks.

How to implement and why

Step 1: Implement the DIContainer Class

• Create the DIContainer Class: Implement the PSR-11 ContainerInterface to ensure compliance with industry standards.
• Service Registration Methods: Add methods for registering services:
  • register(string $name, callable $resolver, bool $shared = false): General method for registration.
  • registerSingleton(string $name, callable $resolver): Convenience method for registering shared instances.
  • registerTransient(string $name, callable $resolver): Convenience method for registering new instances on each request.
• Service Resolution Logic: Implement the get(string $name) method to:
  • Check if the service is registered.
  • Resolve dependencies recursively.
  • Manage lifecycle (singleton vs. transient) based on the registration.

Reasoning: By structuring the container this way, we ensure flexibility in how services are registered and resolved, while keeping the API intuitive.

Step 2: Automatic Dependency Resolution

• Reflection-Based Resolution: Utilize PHP's Reflection API to automatically resolve and instantiate service dependencies without manual intervention.
• Constructor Injection Support: When resolving a service, inspect its constructor parameters and resolve any dependencies required.

Reasoning: Automatic dependency resolution reduces boilerplate code and simplifies the process of managing complex dependency graphs.

Step 3: Implement Unit Tests

• Test Service Registration and Resolution: Verify that services can be registered and resolved correctly.
• Test Lifecycle Management: Ensure singleton services return the same instance and transient services return new instances.
• Test Dependency Resolution: Confirm that dependencies are automatically resolved when a service is requested.

Reasoning: Unit tests are crucial to validate each component's functionality in isolation, ensuring reliability and preventing regressions.

Step 4: Implement Integration Tests

• Integrate with the Pancake Framework: Test the DI container within the context of the Pancake framework to ensure it behaves as expected when used in real scenarios.
• Simulate Real-World Usage: Write tests that mimic typical usage patterns, including complex dependency chains.

Reasoning: Integration tests verify that the DI container works correctly when combined with other parts of the system, ensuring overall system integrity.

Step 5: Update Documentation

• Usage Examples: Provide clear examples on how to register and resolve services using the new DI container.
• Best Practices: Include guidelines on how to effectively use the container for dependency management.

Reasoning: Good documentation is essential for developers to understand and effectively use new features, promoting adoption and correct usage.

About backward compatibility

This feature is backward compatible because:

• Non-Intrusive Addition: It introduces new classes and functionality without altering existing classes or APIs.
• Optional Adoption: Existing codebases can continue to function without adopting the DI container immediately.
• Enhancement Over Modification: The DI container adds new capabilities without changing the current behavior of the framework.

Maintaining backward compatibility ensures that current users of the Pancake framework can upgrade without any adverse effects on their existing applications.

Test these changes locally

git checkout -b gitauto/issue-#235-e9717850-6cb0-4c71-977a-0252215df6ea
git pull origin gitauto/issue-#235-e9717850-6cb0-4c71-977a-0252215df6ea

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[deepsource-io]

Here's the code health analysis summary for commits 7c917a3..1c99e64. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
Test coverage	⚠️ Artifact not reported	Timed out: Artifact was never reported	View Check ↗
SQL	✅ Success		View Check ↗
Secrets	✅ Success		View Check ↗
PHP	❌ Failure	❗ 7 occurences introduced	View Check ↗
Docker	✅ Success		View Check ↗

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[github-advanced-security]

Phpcs (reported by Codacy) found more than 20 potential problems in the proposed changes. Check the Files changed tab for more details.

[github-actions]

Infisical secrets check: ✅ No secrets leaked!

💻 Scan logs

3:08AM INF scanning for exposed secrets...
3:08AM INF 249 commits scanned.
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3:08AM INF no leaks found