<?php

namespace Tests\Unit;

use App\Models\DashboardNews;
use Carbon\Carbon;
use Tests\TestCase;

class DashboardNewsTest extends TestCase
{
    /** @test */
    public function it_returns_german_title_when_locale_is_de(): void
    {
        $news = new DashboardNews();
        $news->title = 'Deutsche Überschrift';
        $news->trans_title = ['en' => 'English Title'];

        app()->setLocale('de');

        $this->assertEquals('Deutsche Überschrift', $news->getLang('title'));
    }

    /** @test */
    public function it_returns_translated_title_when_locale_is_set(): void
    {
        $news = new DashboardNews();
        $news->title = 'Deutsche Überschrift';
        $news->trans_title = ['en' => 'English Title'];

        app()->setLocale('en');

        $this->assertEquals('English Title', $news->getLang('title'));
    }

    /** @test */
    public function it_falls_back_to_german_when_translation_is_missing(): void
    {
        $news = new DashboardNews();
        $news->title = 'Deutsche Überschrift';
        $news->trans_title = ['en' => ''];

        app()->setLocale('en');

        $this->assertEquals('Deutsche Überschrift', $news->getLang('title'));
    }

    /** @test */
    public function it_formats_display_date_correctly(): void
    {
        $news = new DashboardNews();
        $news->display_date = Carbon::create(2026, 2, 19);

        $this->assertEquals('19.02.2026', $news->getDisplayDateFormatted());
    }

    /** @test */
    public function it_falls_back_to_created_at_when_display_date_is_null(): void
    {
        $news = new DashboardNews();
        $news->display_date = null;
        $news->created_at = Carbon::create(2025, 12, 1);

        $this->assertEquals('01.12.2025', $news->getDisplayDateFormatted());
    }

    /** @test */
    public function it_returns_empty_string_when_no_dates_are_set(): void
    {
        $news = new DashboardNews();
        $news->display_date = null;
        $news->created_at = null;

        $this->assertEquals('', $news->getDisplayDateFormatted());
    }

    /** @test */
    public function it_detects_no_file_links_when_empty(): void
    {
        $news = new DashboardNews();
        $news->file_links = null;

        $this->assertFalse($news->hasFileLinks());
    }
}