<?php

namespace Tests\Unit\BusinessPlan;

use Tests\TestCase;
use App\User;
use App\Models\UserBusinessStructure;
use App\Services\BusinessPlan\TreeCalcBotOptimized;
use App\Services\BusinessPlan\BusinessUserRepository;
use App\Services\BusinessPlan\TreeHtmlRenderer;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Mockery;

class TreeCalcBotOptimizedTest extends TestCase
{
    use RefreshDatabase;

    private $treeCalcBot;
    private $mockRepository;
    private $mockRenderer;
    private $mockLogger;

    protected function setUp(): void
    {
        parent::setUp();
        
        $this->mockRepository = Mockery::mock(BusinessUserRepository::class);
        $this->mockRenderer = Mockery::mock(TreeHtmlRenderer::class);
        $this->mockLogger = Mockery::mock(\Psr\Log\LoggerInterface::class);
        
        $this->treeCalcBot = new TreeCalcBotOptimized(
            1, // month
            2024, // year
            'admin',
            $this->mockRepository,
            $this->mockRenderer,
            $this->mockLogger
        );
    }

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

    /** @test */
    public function constructor_validates_month_boundaries()
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Invalid month: 13');
        
        new TreeCalcBotOptimized(13, 2024);
    }

    /** @test */
    public function constructor_validates_year_boundaries()
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Invalid year: 2019');
        
        new TreeCalcBotOptimized(1, 2019);
    }

    /** @test */
    public function constructor_initializes_date_object_correctly()
    {
        $treeCalcBot = new TreeCalcBotOptimized(3, 2024);
        $date = $treeCalcBot->__get('date');
        
        $this->assertEquals(3, $date->month);
        $this->assertEquals(2024, $date->year);
        $this->assertStringStartsWith('2024-03-01', $date->start_date);
        $this->assertStringStartsWith('2024-03-31', $date->end_date);
    }

    /** @test */
    public function isFromStored_returns_completed_structure()
    {
        // Create completed structure
        $structure = UserBusinessStructure::create([
            'month' => 1,
            'year' => 2024,
            'structure' => [],
            'completed' => true
        ]);

        $result = TreeCalcBotOptimized::isFromStored(1, 2024);
        
        $this->assertNotNull($result);
        $this->assertEquals($structure->id, $result->id);
    }

    /** @test */
    public function isFromStored_returns_null_for_incomplete_structure()
    {
        // Create incomplete structure
        UserBusinessStructure::create([
            'month' => 1,
            'year' => 2024,
            'structure' => [],
            'completed' => false
        ]);

        $result = TreeCalcBotOptimized::isFromStored(1, 2024);
        
        $this->assertNull($result);
    }

    /** @test */
    public function initStructureAdmin_uses_stored_structure_when_available()
    {
        $mockStructure = new UserBusinessStructure();
        $mockStructure->structure = [];
        $mockStructure->parentless = [];
        
        $this->mockRepository
            ->shouldReceive('getStoredStructure')
            ->once()
            ->andReturn($mockStructure);
            
        $this->mockLogger
            ->shouldReceive('info')
            ->once()
            ->with('Loading stored business structure for 1/2024');

        $this->treeCalcBot->initStructureAdmin(true);
    }

    /** @test */
    public function initStructureAdmin_builds_fresh_when_no_stored_structure()
    {
        $this->mockRepository
            ->shouldReceive('getStoredStructure')
            ->once()
            ->andReturn(null);
            
        $this->mockRepository
            ->shouldReceive('getRootUsers')
            ->once()
            ->andReturn(collect([]));
            
        $this->mockLogger
            ->shouldReceive('info')
            ->once()
            ->with('Building fresh business structure for 1/2024');
            
        $this->mockLogger
            ->shouldReceive('info')
            ->once()
            ->with('Loaded 0 root users with optimized relations. Memory used: 0 B');

        $this->treeCalcBot->initStructureAdmin(true);
    }

    /** @test */
    public function initStructureUser_handles_non_existent_user()
    {
        $this->mockRepository
            ->shouldReceive('getUserWithRelations')
            ->with(999)
            ->once()
            ->andReturn(null);
            
        $this->mockLogger
            ->shouldReceive('info')
            ->once()
            ->with('Initializing structure for user: 999');
            
        $this->mockLogger
            ->shouldReceive('warning')
            ->once()
            ->with('User not found: 999');

        $this->treeCalcBot->initStructureUser(999);
    }

    /** @test */
    public function getGrowthBonus_returns_empty_array_when_no_business_user()
    {
        $result = $this->treeCalcBot->getGrowthBonus();
        
        $this->assertEquals([], $result);
    }

    /** @test */
    public function getKeybyLine_returns_zero_when_no_business_user()
    {
        $result = $this->treeCalcBot->getKeybyLine(1, 'points');
        
        $this->assertEquals(0, $result);
    }

    /** @test */
    public function makeHtmlTree_delegates_to_renderer()
    {
        $expectedHtml = '<div>Test HTML</div>';
        
        $this->mockRenderer
            ->shouldReceive('renderTree')
            ->once()
            ->with([])
            ->andReturn($expectedHtml);

        $result = $this->treeCalcBot->makeHtmlTree();
        
        $this->assertEquals($expectedHtml, $result);
    }

    /** @test */
    public function makeParentlessHtml_delegates_to_renderer()
    {
        $expectedHtml = '<div>Parentless HTML</div>';
        
        $this->mockRenderer
            ->shouldReceive('renderParentless')
            ->once()
            ->with([])
            ->andReturn($expectedHtml);

        $result = $this->treeCalcBot->makeParentlessHtml();
        
        $this->assertEquals($expectedHtml, $result);
    }

    /** @test */
    public function isParentless_returns_false_when_empty()
    {
        $result = $this->treeCalcBot->isParentless();
        
        $this->assertFalse($result);
    }

    /** @test */
    public function getItems_returns_business_users_array()
    {
        $result = $this->treeCalcBot->getItems();
        
        $this->assertEquals([], $result);
    }

    /** @test */
    public function magic_get_method_returns_correct_properties()
    {
        $date = $this->treeCalcBot->__get('date');
        $businessUsers = $this->treeCalcBot->__get('business_users');
        $parentless = $this->treeCalcBot->__get('parentless');
        
        $this->assertNotNull($date);
        $this->assertEquals([], $businessUsers);
        $this->assertEquals([], $parentless);
    }

    /** @test */
    public function magic_get_method_throws_exception_for_invalid_property()
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Property invalid_property does not exist');
        
        $this->treeCalcBot->__get('invalid_property');
    }

    /** @test */
    public function magic_set_method_allows_setting_valid_properties()
    {
        $testArray = ['test'];
        
        $this->treeCalcBot->__set('business_users', $testArray);
        $result = $this->treeCalcBot->__get('business_users');
        
        $this->assertEquals($testArray, $result);
    }

    /** @test */
    public function magic_set_method_throws_exception_for_invalid_property()
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Property invalid_property cannot be set');
        
        $this->treeCalcBot->__set('invalid_property', 'value');
    }

    /** @test */
    public function memory_monitoring_detects_high_usage()
    {
        // This test would need reflection to access private methods
        // For now, we'll test the public interface
        
        $this->mockLogger
            ->shouldReceive('info')
            ->once()
            ->with('Building fresh business structure for 1/2024');
            
        $this->mockLogger
            ->shouldReceive('info')
            ->once()
            ->with('Loaded 0 root users with optimized relations. Memory used: 0 B');
            
        $this->mockRepository
            ->shouldReceive('getStoredStructure')
            ->once()
            ->andReturn(null);
            
        $this->mockRepository
            ->shouldReceive('getRootUsers')
            ->once()
            ->andReturn(collect([]));

        $this->treeCalcBot->initStructureAdmin(false);
    }
}