<?php

namespace App\Services\Web;

use App\Models\Category;
use App\Models\Company;
use App\Models\PressRelease;
use App\Scopes\PortalScope;
use App\Support\WebPortalContext;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Carbon;

/**
 * Datenaufbereitung der Newsroom-Markenseite eines Unternehmens je Ausgabe:
 * alle veröffentlichten Meldungen der Firma plus Kennzahlen. Ohne aktives
 * Unternehmen oder ohne veröffentlichte Meldung gibt es keine öffentliche Seite
 * (404).
 */
class NewsroomDetailPageData
{
    /**
     * @return array<string, mixed>
     */
    public function build(WebPortalContext $context, string $slug): array
    {
        $portalValues = $context->portalValues;
        $language = $context->language;

        $company = Company::query()
            ->withoutGlobalScope(PortalScope::class)
            ->whereIn('portal', $portalValues)
            ->where('is_active', true)
            ->where('slug', $slug)
            ->with(['contacts'])
            ->first();

        if (! $company) {
            abort(404);
        }

        $base = static fn (): Builder => PressRelease::query()
            ->withoutGlobalScope(PortalScope::class)
            ->where('company_id', $company->id)
            ->forPortalValues($portalValues)
            ->forLanguage($language)
            ->visibleInArchive();

        // Keine öffentliche Newsroom-Seite ohne veröffentlichte Meldung.
        if (! $base()->exists()) {
            abort(404);
        }

        $latest = $base()->max('published_at');
        $referenceNow = $latest ? Carbon::parse($latest) : now();
        if ($referenceNow->gt(now())) {
            $referenceNow = now();
        }
        $recentSince = $referenceNow->copy()->subDays(30);
        $oldest = $base()->min('published_at');

        $with = [
            'company',
            'category.translations' => fn ($query) => $query->where('locale', $language),
            'images' => fn ($query) => $query->orderByDesc('is_preview')->orderBy('sort_order')->limit(1),
        ];

        $leadRelease = $base()->with($with)->orderByDesc('published_at')->first();

        $releases = $base()
            ->with($with)
            ->when($leadRelease, fn (Builder $query) => $query->whereKeyNot($leadRelease->getKey()))
            ->orderByDesc('published_at')
            ->paginate(10)
            ->withQueryString();

        $mostReadReleases = $base()
            ->orderByDesc('hits')
            ->orderByDesc('published_at')
            ->limit(5)
            ->get(['id', 'slug', 'title', 'hits', 'portal', 'language']);

        $companyFilter = static function (Builder $query) use ($company, $portalValues, $language): void {
            $query
                ->withoutGlobalScope(PortalScope::class)
                ->where('company_id', $company->id)
                ->forPortalValues($portalValues)
                ->forLanguage($language)
                ->published();
        };

        $categories = Category::query()
            ->whereIn('portal', $portalValues)
            ->whereHas('pressReleases', fn (Builder $query) => $companyFilter($query))
            ->with(['translations' => fn ($query) => $query->where('locale', $language)])
            ->withCount(['pressReleases as releases_count' => fn (Builder $query) => $companyFilter($query)])
            ->orderByDesc('releases_count')
            ->limit(8)
            ->get()
            ->map(function (Category $category): ?array {
                $translation = $category->translations->first();

                if (! $translation) {
                    return null;
                }

                return [
                    'name' => $translation->name,
                    'href' => $translation->slug ? route('kategorie', ['slug' => $translation->slug]) : route('web.home'),
                    'count' => (int) ($category->releases_count ?? 0),
                ];
            })
            ->filter()
            ->values();

        return [
            'company' => $company,
            'referenceNow' => $referenceNow,
            'leadRelease' => $leadRelease,
            'releases' => $releases,
            'mostReadReleases' => $mostReadReleases,
            'categories' => $categories,
            'newsroomStats' => [
                'total' => $base()->count(),
                'recent' => $base()->where('published_at', '>=', $recentSince)->count(),
                'today' => $base()->whereDate('published_at', $referenceNow->toDateString())->count(),
                'totalHits' => (int) $base()->sum('hits'),
                'sinceYear' => $oldest ? (int) Carbon::parse($oldest)->format('Y') : null,
            ],
        ];
    }
}