<?php

namespace Tests\Unit\Actions\User;

use App\Actions\User\CreateUserAction;
use App\Models\Planner;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Log;
use Tests\TestCase;

class CreateUserActionTest extends TestCase
{
    use RefreshDatabase;

    private CreateUserAction $action;
    private Planner $planner;

    protected function setUp(): void
    {
        parent::setUp();
        $this->action = new CreateUserAction();
        
        // Create a planner for testing
        $this->planner = Planner::factory()->create();
    }

    public function test_it_can_create_a_user_successfully(): void
    {
        // Arrange
        $userData = [
            'name' => 'Test User',
            'planner_id' => $this->planner->id,
        ];

        // Act
        $user = $this->action->execute($userData);

        // Assert
        $this->assertInstanceOf(User::class, $user);
        $this->assertEquals('Test User', $user->name);
        $this->assertEquals($this->planner->id, $user->planner_id);
        $this->assertDatabaseHas('users', [
            'id' => $user->id,
            'name' => 'Test User',
            'planner_id' => $this->planner->id,
        ]);
    }

    public function test_it_throws_exception_when_name_is_empty(): void
    {
        // Arrange
        $userData = [
            'name' => '',
            'planner_id' => $this->planner->id,
        ];

        // Act & Assert
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Name is required');
        
        $this->action->execute($userData);
        
        // Verify no user was created
        $this->assertDatabaseMissing('users', [
            'planner_id' => $this->planner->id,
        ]);
    }

    public function test_it_throws_exception_when_name_is_missing(): void
    {
        // Arrange
        $userData = [
            'planner_id' => $this->planner->id,
        ];

        // Act & Assert
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Name is required');
        
        $this->action->execute($userData);
    }

    public function test_it_throws_exception_when_planner_id_is_empty(): void
    {
        // Arrange
        $userData = [
            'name' => 'Test User',
            'planner_id' => '',
        ];

        // Act & Assert
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Planner ID is required');
        
        $this->action->execute($userData);
    }

    public function test_it_throws_exception_when_planner_id_is_missing(): void
    {
        // Arrange
        $userData = [
            'name' => 'Test User',
        ];

        // Act & Assert
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Planner ID is required');
        
        $this->action->execute($userData);
    }

    public function test_it_logs_creation_process(): void
    {
        // Arrange
        Log::spy();
        $userData = [
            'name' => 'Test User',
            'planner_id' => $this->planner->id,
        ];

        // Act
        $user = $this->action->execute($userData);

        // Assert
        Log::shouldHaveReceived('info')
            ->with('CreateUserAction: Starting user creation', [
                'name' => 'Test User',
                'planner_id' => $this->planner->id,
            ]);
            
        Log::shouldHaveReceived('info')
            ->with('CreateUserAction: User successfully created', [
                'user_id' => $user->id,
                'name' => 'Test User',
                'planner_id' => $this->planner->id,
            ]);
    }

    public function test_it_handles_database_transaction_rollback_on_failure(): void
    {
        // Arrange
        $userData = [
            'name' => 'Test User',
            'planner_id' => 999999, // Non-existent planner ID should cause foreign key constraint error
        ];

        // Act & Assert
        $this->expectException(\Exception::class);
        
        try {
            $this->action->execute($userData);
        } catch (\Exception $e) {
            // Verify no user was created (transaction rolled back)
            $this->assertDatabaseMissing('users', [
                'name' => 'Test User',
            ]);
            throw $e;
        }
    }

    public function test_it_logs_errors_on_failure(): void
    {
        // Arrange
        Log::spy();
        $userData = [
            'name' => 'Test User',
            'planner_id' => 999999, // Non-existent planner ID
        ];

        // Act & Assert
        try {
            $this->action->execute($userData);
        } catch (\Exception $e) {
            // Expected
        }
        
        // Assert
        Log::shouldHaveReceived('error')
            ->with('CreateUserAction: User creation failed', \Mockery::on(function ($data) {
                return $data['name'] === 'Test User' && 
                       $data['planner_id'] === 999999 &&
                       isset($data['error']) &&
                       isset($data['trace']);
            }));
    }

    public function test_it_creates_user_with_whitespace_trimmed_name(): void
    {
        // Arrange
        $userData = [
            'name' => '  Test User  ',
            'planner_id' => $this->planner->id,
        ];

        // Act
        $user = $this->action->execute($userData);

        // Assert
        $this->assertEquals('  Test User  ', $user->name); // Should preserve original data as passed
        $this->assertDatabaseHas('users', [
            'id' => $user->id,
            'name' => '  Test User  ',
            'planner_id' => $this->planner->id,
        ]);
    }

    public function test_it_can_create_multiple_users_with_same_planner(): void
    {
        // Arrange
        $userData1 = [
            'name' => 'User One',
            'planner_id' => $this->planner->id,
        ];
        
        $userData2 = [
            'name' => 'User Two',
            'planner_id' => $this->planner->id,
        ];

        // Act
        $user1 = $this->action->execute($userData1);
        $user2 = $this->action->execute($userData2);

        // Assert
        $this->assertNotEquals($user1->id, $user2->id);
        $this->assertEquals($this->planner->id, $user1->planner_id);
        $this->assertEquals($this->planner->id, $user2->planner_id);
        $this->assertDatabaseHas('users', ['name' => 'User One']);
        $this->assertDatabaseHas('users', ['name' => 'User Two']);
    }

    protected function tearDown(): void
    {
        \Mockery::close();
        parent::tearDown();
    }
}