<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

/**
 * App\Models\DashboardNews
 *
 * @property int $id
 * @property string|null $title
 * @property string|null $teaser
 * @property string|null $content
 * @property array|null $trans_title
 * @property array|null $trans_teaser
 * @property array|null $trans_content
 * @property bool $active
 * @property \Illuminate\Support\Carbon|null $display_date
 * @property \Illuminate\Support\Carbon|null $created_at
 * @property \Illuminate\Support\Carbon|null $updated_at
 *
 * @mixin \Eloquent
 */
class DashboardNews extends Model
{
    protected $table = 'dashboard_news';

    protected $casts = [
        'trans_title' => 'array',
        'trans_teaser' => 'array',
        'trans_content' => 'array',
        'file_links' => 'array',
        'active' => 'boolean',
        'display_date' => 'date',
    ];

    protected $fillable = [
        'title',
        'teaser',
        'content',
        'trans_title',
        'trans_teaser',
        'trans_content',
        'file_links',
        'active',
        'display_date',
    ];

    /**
     * Get translated value or fallback to default (German)
     */
    public function getLang($key)
    {
        $lang = \App::getLocale();
        if ($lang == 'de') {
            return $this->{$key};
        }
        $trans = $this->getTrans($key, $lang);
        if (! $trans || $trans == '') {
            return $this->{$key};
        }

        return $trans;
    }

    /**
     * Get specific translation
     */
    public function getTrans($key, $lang)
    {
        $transKey = 'trans_'.$key;
        if (! empty($this->{$transKey}[$lang])) {
            return $this->{$transKey}[$lang];
        }

        return '';
    }

    /**
     * Get active news
     */
    public static function getActiveNews(): ?self
    {
        return self::where('active', true)
            ->orderBy('created_at', 'DESC')
            ->first();
    }

    /**
     * Get all archived (non-active) news ordered by display date descending
     *
     * @return \Illuminate\Database\Eloquent\Collection<int, self>
     */
    public static function getArchiveNews(): \Illuminate\Database\Eloquent\Collection
    {
        return self::where('active', false)
            ->orderBy('display_date', 'DESC')
            ->orderBy('created_at', 'DESC')
            ->get();
    }

    /**
     * Get formatted display date or created_at as fallback
     */
    public function getDisplayDateFormatted()
    {
        $date = $this->display_date ?: $this->created_at;

        return $date ? $date->format('d.m.Y') : '';
    }

    /**
     * Get file links for current language
     */
    public function getFileLinks($lang = null)
    {
        if (! $lang) {
            $lang = \App::getLocale();
        }

        if (! $this->file_links || ! isset($this->file_links[$lang])) {
            return [];
        }

        return collect($this->file_links[$lang])->map(function ($link) {
            if (isset($link['file_id'])) {
                $file = \App\Models\DcFile::find($link['file_id']);
                if ($file && $file->active) {
                    return [
                        'file' => $file,
                        'label' => $link['label'] ?? $file->original_name,
                    ];
                }
            }

            return null;
        })->filter()->values();
    }

    /**
     * Check if news has file links for current language
     */
    public function hasFileLinks($lang = null)
    {
        return count($this->getFileLinks($lang)) > 0;
    }
}