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Ty Clifford
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<?php
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declare(strict_types=1);
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namespace Budget;
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use PDO;
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use RuntimeException;
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final class ExportService
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{
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private const TABLES = [
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'monthly_plans', 'income_entries', 'categories', 'budget_items',
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'transactions', 'dead_account_entries', 'calendar_events',
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];
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public function __construct(private PDO $pdo, private Settings $settings, private BudgetService $budget)
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{
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}
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public function package(): string
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{
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$data = [];
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foreach (self::TABLES as $table) {
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$data[$table] = $this->pdo->query('SELECT * FROM ' . $table)->fetchAll();
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}
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$safeSettings = [];
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foreach ($this->settings->all() as $key => $value) {
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if (!str_starts_with($key, 'mailgun.api_key') && !str_starts_with($key, 'security.')) {
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$safeSettings[$key] = $value;
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}
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}
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$package = [
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'format' => 'neon-ledger/budget-planner',
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'version' => 1,
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'exported_at' => date(DATE_ATOM),
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'settings' => $safeSettings,
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'data' => $data,
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];
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$json = json_encode($package, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
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if ($json === false) {
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throw new RuntimeException('Planner package could not be encoded.');
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}
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return $json;
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}
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public function importPackage(string $json, bool $replace): array
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{
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$package = json_decode($json, true);
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if (!is_array($package)
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|| ($package['format'] ?? '') !== 'neon-ledger/budget-planner'
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|| (int) ($package['version'] ?? 0) !== 1
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|| !is_array($package['data'] ?? null)
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) {
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throw new RuntimeException('This is not a compatible Neon Ledger planner package.');
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}
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$inserted = [];
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$this->pdo->beginTransaction();
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try {
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if ($this->pdo->getAttribute(PDO::ATTR_DRIVER_NAME) === 'mysql') {
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$this->pdo->exec('SET FOREIGN_KEY_CHECKS=0');
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} else {
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$this->pdo->exec('PRAGMA defer_foreign_keys = ON');
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}
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if ($replace) {
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foreach (array_reverse(self::TABLES) as $table) {
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$this->pdo->exec('DELETE FROM ' . $table);
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}
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}
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foreach (self::TABLES as $table) {
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$rows = $package['data'][$table] ?? [];
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$inserted[$table] = 0;
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if (!is_array($rows)) {
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continue;
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}
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foreach ($rows as $row) {
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if (!is_array($row) || $row === []) {
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continue;
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}
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$columns = array_keys($row);
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$columnSql = implode(', ', array_map(
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fn (string $column): string => $this->pdo->getAttribute(PDO::ATTR_DRIVER_NAME) === 'mysql'
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? '`' . $column . '`'
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: '"' . $column . '"',
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$columns
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));
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$placeholders = implode(', ', array_map(static fn (string $column): string => ':' . $column, $columns));
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$verb = $replace
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? ($this->pdo->getAttribute(PDO::ATTR_DRIVER_NAME) === 'mysql' ? 'REPLACE' : 'INSERT OR REPLACE')
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: ($this->pdo->getAttribute(PDO::ATTR_DRIVER_NAME) === 'mysql' ? 'INSERT IGNORE' : 'INSERT OR IGNORE');
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$statement = $this->pdo->prepare(sprintf('%s INTO %s (%s) VALUES (%s)', $verb, $table, $columnSql, $placeholders));
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$statement->execute($row);
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$inserted[$table] += $statement->rowCount();
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}
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}
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foreach ((array) ($package['settings'] ?? []) as $key => $value) {
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if (is_string($key) && !str_starts_with($key, 'mailgun.api_key') && !str_starts_with($key, 'security.')) {
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$this->settings->set($key, $value);
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}
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}
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if ($this->pdo->getAttribute(PDO::ATTR_DRIVER_NAME) === 'mysql') {
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$this->pdo->exec('SET FOREIGN_KEY_CHECKS=1');
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}
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$this->pdo->commit();
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} catch (\Throwable $exception) {
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if ($this->pdo->inTransaction()) {
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$this->pdo->rollBack();
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}
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throw $exception;
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}
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return $inserted;
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}
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public function html(string $month): string
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{
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$summary = $this->budget->summary($month);
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$items = $this->budget->budgetItems($month);
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$transactions = $this->budget->transactions($month);
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$symbol = (string) $this->settings->get('app.currency_symbol', '$');
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$escape = static fn (mixed $value): string => htmlspecialchars((string) $value, ENT_QUOTES, 'UTF-8');
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$money = static fn (mixed $value): string => Support::money((float) $value, $symbol);
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$itemRows = '';
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foreach ($items as $item) {
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$itemRows .= sprintf(
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'<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>',
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$escape($item['name']),
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$escape($item['category_name'] ?: 'Uncategorized'),
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$money($item['planned_amount']),
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$money($item['paid_amount']),
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$money($item['remaining_amount'])
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);
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}
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$transactionRows = '';
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foreach ($transactions as $transaction) {
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$transactionRows .= sprintf(
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'<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>',
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$escape($transaction['transacted_on']),
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$escape($transaction['merchant']),
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$escape($transaction['category_name'] ?: 'Uncategorized'),
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$money($transaction['amount'])
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);
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}
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return '<!doctype html><html lang="en"><head><meta charset="utf-8"><title>Budget report ' . $escape($month) . '</title>'
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. '<style>body{font:15px/1.5 system-ui;color:#182033;max-width:1000px;margin:40px auto;padding:0 24px}h1{color:#5b36d9}'
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. '.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat{border:1px solid #ddd;border-radius:10px;padding:14px}'
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. 'table{width:100%;border-collapse:collapse;margin:20px 0}th,td{text-align:left;padding:9px;border-bottom:1px solid #ddd}th{color:#5b36d9}'
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. '@media print{body{margin:0}.no-print{display:none}}</style></head><body>'
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. '<button class="no-print" onclick="print()">Print / Save as PDF</button>'
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. '<h1>' . $escape($this->settings->get('app.name', 'Neon Ledger')) . ' — ' . $escape(date('F Y', strtotime($month . '-01'))) . '</h1>'
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. '<div class="stats"><div class="stat"><small>Resources</small><strong>' . $money($summary['gross_resources']) . '</strong></div>'
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. '<div class="stat"><small>Expenses</small><strong>' . $money($summary['expenses']) . '</strong></div>'
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. '<div class="stat"><small>Dormant movement</small><strong>' . $money($summary['dead_movement']) . '</strong></div>'
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. '<div class="stat"><small>Remaining</small><strong>' . $money($summary['remaining']) . '</strong></div></div>'
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. '<h2>Budget progress</h2><table><thead><tr><th>Item</th><th>Category</th><th>Target</th><th>Paid</th><th>Owing</th></tr></thead><tbody>'
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. $itemRows . '</tbody></table><h2>Expenses</h2><table><thead><tr><th>Date</th><th>Description</th><th>Category</th><th>Amount</th></tr></thead><tbody>'
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. $transactionRows . '</tbody></table><p>Exported ' . $escape(date(DATE_RFC2822)) . '</p></body></html>';
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}
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public function pdf(string $month): string
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{
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$summary = $this->budget->summary($month);
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$items = $this->budget->budgetItems($month);
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$symbol = (string) $this->settings->get('app.currency_symbol', '$');
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$lines = [
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(string) $this->settings->get('app.name', 'Neon Ledger') . ' - ' . date('F Y', strtotime($month . '-01')),
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'',
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'Resources: ' . Support::money($summary['gross_resources'], $symbol),
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'Expenses: ' . Support::money($summary['expenses'], $symbol),
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'Dormant movement: ' . Support::money($summary['dead_movement'], $symbol),
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'Remaining: ' . Support::money($summary['remaining'], $symbol),
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'',
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'BUDGET PROGRESS',
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];
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foreach ($items as $item) {
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$lines[] = sprintf(
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'%s | target %s | paid %s | owing %s',
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$item['name'],
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Support::money($item['planned_amount'], $symbol),
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Support::money($item['paid_amount'], $symbol),
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Support::money($item['remaining_amount'], $symbol)
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);
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}
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$lines[] = '';
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$lines[] = 'Generated ' . date(DATE_RFC2822);
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return $this->simplePdf($lines);
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}
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private function simplePdf(array $lines): string
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{
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$content = "BT\n/F1 11 Tf\n50 760 Td\n14 TL\n";
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foreach ($lines as $index => $line) {
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$line = iconv('UTF-8', 'Windows-1252//TRANSLIT', (string) $line) ?: (string) $line;
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$line = str_replace(['\\', '(', ')'], ['\\\\', '\\(', '\\)'], $line);
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$content .= ($index === 0 ? '' : "T*\n") . '(' . $line . ") Tj\n";
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}
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$content .= "ET\n";
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$objects = [
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'<< /Type /Catalog /Pages 2 0 R >>',
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'<< /Type /Pages /Kids [3 0 R] /Count 1 >>',
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'<< /Type /Page /Parent 2 0 R /MediaBox [0 0 612 792] /Resources << /Font << /F1 5 0 R >> >> /Contents 4 0 R >>',
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'<< /Length ' . strlen($content) . " >>\nstream\n" . $content . 'endstream',
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'<< /Type /Font /Subtype /Type1 /BaseFont /Helvetica >>',
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];
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$pdf = "%PDF-1.4\n";
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$offsets = [0];
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foreach ($objects as $number => $object) {
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$offsets[] = strlen($pdf);
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$pdf .= ($number + 1) . " 0 obj\n" . $object . "\nendobj\n";
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}
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$xref = strlen($pdf);
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$pdf .= "xref\n0 " . (count($objects) + 1) . "\n0000000000 65535 f \n";
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for ($index = 1; $index <= count($objects); $index++) {
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$pdf .= sprintf("%010d 00000 n \n", $offsets[$index]);
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}
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$pdf .= 'trailer << /Size ' . (count($objects) + 1) . " /Root 1 0 R >>\nstartxref\n" . $xref . "\n%%EOF";
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return $pdf;
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}
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}
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