<?php

namespace Tests\Unit\Services\ClassPreparation;

use App\Services\ClassPreparation\ClassPreparationCalculatorService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Tests\TestCase;

class ClassPreparationCalculatorServiceTest extends TestCase
{
    use RefreshDatabase;

    public function test_get_class_level_by_section(): void
    {
        DB::table('classSection')->insert([
            'id' => 1,
            'class_id' => 1,
            'class_section_id' => 101,
            'class_section_name' => '2-A',
            'semester' => 'Fall',
            'school_year' => '2025-2026',
        ]);

        $service = new ClassPreparationCalculatorService();

        $this->assertSame(2, $service->getClassLevelBySection('101'));
        $this->assertSame(1, $service->getClassLevelBySection('KG'));
    }

    public function test_calculate_prep_items_for_lower_grades(): void
    {
        DB::table('configuration')->insert([
            ['id' => 1, 'config_key' => 'school_year', 'config_value' => '2025-2026'],
        ]);

        DB::table('inventory_categories')->insert([
            ['name' => 'Small Table', 'grade_min' => null, 'grade_max' => null, 'type' => 'classroom'],
            ['name' => 'Small Chair', 'grade_min' => null, 'grade_max' => null, 'type' => 'classroom'],
            ['name' => 'Teacher Chair', 'grade_min' => null, 'grade_max' => null, 'type' => 'classroom'],
            ['name' => 'Grade Box', 'grade_min' => null, 'grade_max' => null, 'type' => 'classroom'],
        ]);

        DB::table('teacher_class')->insert([
            'class_section_id' => 101,
            'teacher_id' => 1,
            'position' => 'main',
            'semester' => 'Fall',
            'school_year' => '2025-2026',
        ]);

        $service = new ClassPreparationCalculatorService();
        $items = $service->calculatePrepItems(6, 1, '101');

        $this->assertSame(2, $items['Small Table']);
        $this->assertSame(6, $items['Small Chair']);
        $this->assertSame(1, $items['Teacher Chair']);
        $this->assertSame(1, $items['Grade Box']);
    }
}