<?php

namespace Tests\Unit\Services\Semesters;

use App\Services\SemesterRangeService;
use App\Services\Semesters\SemesterConfigService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Tests\TestCase;

class SemesterRangeServiceTest extends TestCase
{
    use RefreshDatabase;

    public function test_get_school_year_range_falls_back_when_config_missing(): void
    {
        $service = new SemesterRangeService(new SemesterConfigService());
        [$start, $end] = $service->getSchoolYearRange('2025-2026');

        $this->assertSame('2025-09-01', $start);
        $this->assertSame('2026-06-30', $end);
    }

    public function test_get_semester_for_date_uses_config_dates(): void
    {
        DB::table('configuration')->insert([
            ['id' => 1, 'config_key' => 'fall_semester_start', 'config_value' => '2025-09-01'],
            ['id' => 2, 'config_key' => 'spring_semester_start', 'config_value' => '2026-01-20'],
            ['id' => 3, 'config_key' => 'last_school_day', 'config_value' => '2026-06-01'],
        ]);

        $service = new SemesterRangeService(new SemesterConfigService());
        $semester = $service->getSemesterForDate('2025-10-01');

        $this->assertSame('Fall', $semester);
    }

    public function test_normalize_semester(): void
    {
        $service = new SemesterRangeService(new SemesterConfigService());

        $this->assertSame('Fall', $service->normalizeSemester('fall'));
        $this->assertSame('Spring', $service->normalizeSemester('SPRING'));
        $this->assertSame('', $service->normalizeSemester('winter'));
    }
}