<?php

declare(strict_types=1);

namespace Tests\Framework\Discovery\Results;

use App\Framework\Core\ValueObjects\ClassName;
use App\Framework\Discovery\Results\InterfaceRegistry;
use App\Framework\Discovery\ValueObjects\InterfaceMapping;

describe('InterfaceRegistry', function () {
    beforeEach(function () {
        $this->registry = new InterfaceRegistry();
    });

    it('can be instantiated', function () {
        expect($this->registry)->toBeInstanceOf(InterfaceRegistry::class);
    });

    it('starts empty', function () {
        expect(count($this->registry))->toBe(0);
    });

    it('can add interface mappings', function () {
        $mapping = InterfaceMapping::create(
            interface: 'Test\\MyInterface',
            implementation: 'Test\\MyClass',
            file: '/path/to/MyClass.php'
        );

        $this->registry->add($mapping);

        expect(count($this->registry))->toBe(1);
    });

    it('can retrieve implementations for an interface', function () {
        $interface = ClassName::create('Test\\MyInterface');

        $mapping1 = InterfaceMapping::create(
            interface: 'Test\\MyInterface',
            implementation: 'Test\\MyClass1',
            file: '/path/to/MyClass1.php'
        );

        $mapping2 = InterfaceMapping::create(
            interface: 'Test\\MyInterface',
            implementation: 'Test\\MyClass2',
            file: '/path/to/MyClass2.php'
        );

        $this->registry->add($mapping1);
        $this->registry->add($mapping2);

        $implementations = $this->registry->get($interface->getFullyQualified());

        expect($implementations)->toBeArray();
        expect(count($implementations))->toBe(2);
        expect($implementations[0])->toBeInstanceOf(ClassName::class);
        expect($implementations[1])->toBeInstanceOf(ClassName::class);
    });

    it('returns empty array for non-existent interface', function () {
        $interface = ClassName::create('Test\\NonExistentInterface');
        $implementations = $this->registry->get($interface->getFullyQualified());

        expect($implementations)->toBeArray();
        expect(count($implementations))->toBe(0);
    });

    it('can check if interface has implementations', function () {
        $interface = ClassName::create('Test\\MyInterface');

        expect($this->registry->has($interface->getFullyQualified()))->toBeFalse();

        $mapping = InterfaceMapping::create(
            interface: 'Test\\MyInterface',
            implementation: 'Test\\MyClass',
            file: '/path/to/MyClass.php'
        );
        $this->registry->add($mapping);

        expect($this->registry->has($interface->getFullyQualified()))->toBeTrue();
    });

    it('can get all mappings', function () {
        $mapping1 = InterfaceMapping::create(
            interface: 'Test\\Interface1',
            implementation: 'Test\\Class1',
            file: '/path/to/Class1.php'
        );

        $mapping2 = InterfaceMapping::create(
            interface: 'Test\\Interface2',
            implementation: 'Test\\Class2',
            file: '/path/to/Class2.php'
        );

        $this->registry->add($mapping1);
        $this->registry->add($mapping2);

        $all = $this->registry->getAllMappings();

        expect($all)->toBeArray();
        expect(count($all))->toBe(2);
    });

    it('can serialize and deserialize', function () {
        $interface = ClassName::create('Test\\MyInterface');
        $mapping = InterfaceMapping::create(
            interface: 'Test\\MyInterface',
            implementation: 'Test\\MyClass',
            file: '/path/to/MyClass.php'
        );

        $this->registry->add($mapping);

        $array = $this->registry->toArray();
        expect($array)->toBeArray();

        $restored = InterfaceRegistry::fromArray($array);
        expect($restored)->toBeInstanceOf(InterfaceRegistry::class);
        expect(count($restored))->toBe(1);
        expect($restored->has($interface->getFullyQualified()))->toBeTrue();
    });

    it('can optimize for memory', function () {
        $interface = ClassName::create('Test\\MyInterface');
        $mapping = InterfaceMapping::create(
            interface: 'Test\\MyInterface',
            implementation: 'Test\\MyClass',
            file: '/path/to/MyClass.php'
        );

        $this->registry->add($mapping);

        $this->registry->optimize();

        // Should still contain the data after optimization
        expect($this->registry->has($interface->getFullyQualified()))->toBeTrue();
    });

    it('can clear cache', function () {
        $interface = ClassName::create('Test\\MyInterface');
        $mapping = InterfaceMapping::create(
            interface: 'Test\\MyInterface',
            implementation: 'Test\\MyClass',
            file: '/path/to/MyClass.php'
        );

        $this->registry->add($mapping);
        expect($this->registry->has($interface->getFullyQualified()))->toBeTrue();

        $this->registry->clearCache();

        // Cache clearing shouldn't remove the data
        expect($this->registry->has($interface->getFullyQualified()))->toBeTrue();
    });
});