<?php

namespace Tests\Unit;

use App\Services\Sms\SmsMessageLength;
use PHPUnit\Framework\TestCase;

class SmsMessageLengthTest extends TestCase
{
    public function test_gsm_message_is_limited_to_160_units(): void
    {
        $length = new SmsMessageLength;

        $this->assertTrue($length->fitsInOneSms(str_repeat('a', 160)));
        $this->assertFalse($length->fitsInOneSms(str_repeat('a', 161)));
        $this->assertSame(160, $length->units(str_repeat('^', 80)));
    }

    public function test_unicode_message_is_limited_to_70_units(): void
    {
        $length = new SmsMessageLength;

        $this->assertTrue($length->fitsInOneSms(str_repeat('ê', 70)));
        $this->assertFalse($length->fitsInOneSms(str_repeat('ê', 71)));
    }

    public function test_value_is_truncated_with_marker_inside_one_sms(): void
    {
        $length = new SmsMessageLength;
        $value = $length->truncateBetween('Rappel : ', str_repeat('a', 200), "\n17/09/2026 14:00");
        $message = 'Rappel : '.$value."\n17/09/2026 14:00";

        $this->assertStringEndsWith('[...]', $value);
        $this->assertTrue($length->fitsInOneSms($message));
    }
}