Proof-PDF + Extra-PM-Verkauf ueber die Credit-Wallet (Decision-Update 2.1/2.3)
- ProofPdfService: Veroeffentlichungsnachweis 3 Credits pauschal, einmal pro
PM (Zweitdownload kostenfrei); ProofPdfRenderer erzeugt das PDF on-demand
aus vorhandenen PM-Daten (kein externer Renderer); GET-Download-Endpoint
/admin/me/press-releases/{id}/nachweis hinter downloadProof-Policy + Kauf-Gate
- ExtraPmPurchaseService: tier-gestaffelter Nachkauf (19/15/12/10/8) aus der
Wallet; verbucht als bezahlter SinglePurchase(ExtraPm) und greift damit in
die bestehende Kontingent-/Slot-Mechanik. InsufficientCreditsException
liefert das Mini-Checkout-Signal (required/available/shortfall)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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232
app/Services/PressRelease/ProofPdfRenderer.php
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app/Services/PressRelease/ProofPdfRenderer.php
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<?php
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namespace App\Services\PressRelease;
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use App\Enums\Portal;
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use App\Models\PressRelease;
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use Illuminate\Support\Str;
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use Symfony\Component\HttpFoundation\Response;
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/**
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* Erzeugt den Veröffentlichungsnachweis-PDF laut Decision-Update §2.3
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* („PM XY wurde am … auf … veröffentlicht" inkl. URL, Datum, Vorschau).
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* On-demand aus vorhandenen PM-Daten — keine KI, kein externer Renderer
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* (gleicher schlanker PDF-Ansatz wie der Legacy-Rechnungs-Renderer).
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*/
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class ProofPdfRenderer
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{
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private const PAGE_WIDTH = 595;
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private const PAGE_HEIGHT = 842;
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private const LEFT = 70;
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private const RIGHT = 525;
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public function downloadResponse(PressRelease $pressRelease): Response
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{
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$pdf = $this->render($pressRelease);
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return response()->streamDownload(
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static function () use ($pdf): void {
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echo $pdf;
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},
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$this->filename($pressRelease),
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[
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'Content-Type' => 'application/pdf',
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'Cache-Control' => 'private, max-age=0, must-revalidate',
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],
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);
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}
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public function filename(PressRelease $pressRelease): string
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{
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return 'Veroeffentlichungsnachweis-PM-'.$pressRelease->id.'.pdf';
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}
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public function render(PressRelease $pressRelease): string
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{
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$content = '';
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$portalLabel = $pressRelease->portal instanceof Portal
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? $pressRelease->portal->label()
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: (string) $pressRelease->portal;
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$publishedAt = $pressRelease->published_at?->copy()->setTimezone(PressRelease::DISPLAY_TIMEZONE);
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$dateLabel = $publishedAt?->format('d.m.Y') ?? 'n/a';
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$timeLabel = $publishedAt?->format('H:i') ?? null;
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$content .= $this->text(self::LEFT, 790, 'Veröffentlichungsnachweis', 22, 'F2');
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$content .= $this->line(self::LEFT, 778, self::RIGHT, 778, 0.7);
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$content .= $this->text(self::LEFT, 760, $portalLabel, 11, 'F2');
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$y = 712.0;
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$headline = $timeLabel
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? "Diese Pressemitteilung wurde am {$dateLabel} um {$timeLabel} Uhr auf {$portalLabel} veröffentlicht."
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: "Diese Pressemitteilung wurde am {$dateLabel} auf {$portalLabel} veröffentlicht.";
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$y = $this->wrappedText($content, self::LEFT, $y, $headline, 11, self::RIGHT - self::LEFT, 16);
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$y -= 24;
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$content .= $this->text(self::LEFT, $y, 'Titel', 9, 'F2');
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$y = $this->wrappedText($content, self::LEFT, $y - 15, (string) $pressRelease->title, 13, self::RIGHT - self::LEFT, 17, 'F2');
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$y -= 18;
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foreach ($this->metaRows($pressRelease, $portalLabel, $dateLabel) as [$label, $value]) {
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$content .= $this->text(self::LEFT, $y, $label, 9, 'F2');
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$this->wrappedText($content, self::LEFT + 110, $y, $value, 9, self::RIGHT - self::LEFT - 110, 12);
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$y -= 20;
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}
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$y -= 10;
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$content .= $this->text(self::LEFT, $y, 'Vorschau', 9, 'F2');
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$this->wrappedText($content, self::LEFT, $y - 15, $this->previewText($pressRelease), 9, self::RIGHT - self::LEFT, 12);
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$content .= $this->line(self::LEFT, 70, self::RIGHT, 70, 0.5);
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$content .= $this->text(self::LEFT, 56, 'Erstellt über pressekonto – maschinell erzeugter Nachweis.', 8);
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return $this->buildPdf($content);
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}
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/**
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* @return list<array{0: string, 1: string}>
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*/
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private function metaRows(PressRelease $pressRelease, string $portalLabel, string $dateLabel): array
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{
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return array_values(array_filter([
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['Portal', $portalLabel],
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['Veröffentlicht', $dateLabel],
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['URL', $this->publicUrl($pressRelease)],
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$pressRelease->category?->name ? ['Kategorie', (string) $pressRelease->category->name] : null,
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]));
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}
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private function publicUrl(PressRelease $pressRelease): string
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{
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$base = match ($pressRelease->portal) {
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Portal::Presseecho => config('domains.domain_presseecho_url'),
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Portal::Businessportal24 => config('domains.domain_businessportal_url'),
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default => config('app.url'),
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};
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return rtrim((string) $base, '/').'/'.ltrim((string) $pressRelease->slug, '/');
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}
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private function previewText(PressRelease $pressRelease): string
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{
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$plain = trim(html_entity_decode(strip_tags((string) $pressRelease->text)));
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return Str::limit($plain, 600);
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}
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private function buildPdf(string $content): string
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{
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$objects = [
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"1 0 obj\n<< /Type /Catalog /Pages 2 0 R >>\nendobj\n",
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"2 0 obj\n<< /Type /Pages /Kids [3 0 R] /Count 1 >>\nendobj\n",
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"3 0 obj\n<< /Type /Page /Parent 2 0 R /MediaBox [0 0 ".self::PAGE_WIDTH.' '.self::PAGE_HEIGHT."] /Resources << /Font << /F1 4 0 R /F2 5 0 R >> >> /Contents 6 0 R >>\nendobj\n",
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"4 0 obj\n<< /Type /Font /Subtype /Type1 /BaseFont /Helvetica /Encoding /WinAnsiEncoding >>\nendobj\n",
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"5 0 obj\n<< /Type /Font /Subtype /Type1 /BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding >>\nendobj\n",
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"6 0 obj\n<< /Length ".strlen($content)." >>\nstream\n{$content}endstream\nendobj\n",
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];
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$pdf = "%PDF-1.4\n";
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$offsets = [0];
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foreach ($objects as $object) {
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$offsets[] = strlen($pdf);
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$pdf .= $object;
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}
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$xrefOffset = strlen($pdf);
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$pdf .= "xref\n0 ".(count($objects) + 1)."\n";
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$pdf .= "0000000000 65535 f \n";
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foreach (array_slice($offsets, 1) as $offset) {
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$pdf .= sprintf("%010d 00000 n \n", $offset);
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}
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$pdf .= "trailer\n<< /Size ".(count($objects) + 1)." /Root 1 0 R >>\n";
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$pdf .= "startxref\n{$xrefOffset}\n%%EOF\n";
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return $pdf;
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}
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private function escapePdfText(string $text): string
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{
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$encoded = iconv('UTF-8', 'Windows-1252//TRANSLIT//IGNORE', $text);
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return str_replace(['\\', '(', ')'], ['\\\\', '\(', '\)'], $encoded ?: Str::ascii($text));
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}
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private function text(float $x, float $y, string $text, int $size = 9, string $font = 'F1'): string
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{
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return sprintf(
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"BT /%s %d Tf %.2F %.2F Td (%s) Tj ET\n",
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$font,
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$size,
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$x,
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$y,
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$this->escapePdfText($text),
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);
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}
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private function line(float $x1, float $y1, float $x2, float $y2, float $width = 0.5): string
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{
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return sprintf("%.2F w %.2F %.2F m %.2F %.2F l S\n", $width, $x1, $y1, $x2, $y2);
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}
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private function wrappedText(
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string &$content,
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float $x,
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float $y,
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string $text,
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int $size,
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float $width,
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float $lineHeight = 12,
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string $font = 'F1',
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): float {
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foreach ($this->wrap($text, $width, $size) as $line) {
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if ($line !== '') {
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$content .= $this->text($x, $y, $line, $size, $font);
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}
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$y -= $lineHeight;
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}
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return $y;
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}
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/**
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* @return list<string>
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*/
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private function wrap(string $text, float $width, int $size): array
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{
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$lines = [];
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$maxCharacters = max(8, (int) floor($width / ($size * 0.5)));
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foreach (explode("\n", str_replace(["\r\n", "\r"], "\n", $text)) as $paragraph) {
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if (trim($paragraph) === '') {
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$lines[] = '';
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continue;
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}
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$line = '';
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foreach (preg_split('/\s+/', $paragraph) ?: [] as $word) {
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$candidate = trim($line.' '.$word);
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if ($line !== '' && Str::length($candidate) > $maxCharacters) {
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$lines[] = $line;
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$line = $word;
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continue;
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}
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$line = $candidate;
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}
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if ($line !== '') {
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$lines[] = $line;
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}
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}
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return $lines;
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}
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}
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