83 lines
3.1 KiB
PHP
83 lines
3.1 KiB
PHP
<?php
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class PrinterService {
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/**
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* Send raw ESC/POS data to a network printer.
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*
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* @param string $ip Printer IP address
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* @param string $data Raw ESC/POS data
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* @param int $port Printer port (default 9100)
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* @return array Success status and error message if any
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*/
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public static function sendToNetworkPrinter($ip, $data, $port = 9100) {
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if (empty($ip)) {
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return ['success' => false, 'error' => 'Printer IP is not configured.'];
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}
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// Determine if IP is local/private.
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// Cloud servers cannot reach local network IPs (e.g., 192.168.x.x).
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// If it's a local IP, we return immediately to avoid the 1-second fsockopen timeout.
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$isLocalIp = preg_match('/^(127\.|10\.|192\.168\.|172\.(1[6-9]|2[0-9]|3[0-1])\.)/', $ip);
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if ($isLocalIp) {
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return ['success' => false, 'error' => "Cannot connect to local network IP $ip from cloud. Please use a public IP or a local print proxy."];
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}
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$timeout = 5; // 5 seconds for public IPs
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try {
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$fp = @fsockopen($ip, $port, $errno, $errstr, $timeout);
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if (!$fp) {
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return ['success' => false, 'error' => "Could not connect to printer at $ip:$port. Error: $errstr ($errno)"];
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}
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fwrite($fp, $data);
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fclose($fp);
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return ['success' => true];
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} catch (Exception $e) {
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return ['success' => false, 'error' => 'Exception: ' . $e->getMessage()];
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}
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}
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/**
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* Generate basic ESC/POS receipt content.
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*/
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public static function formatReceipt($order, $items, $company) {
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$esc = "\x1b";
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$gs = "\x1d";
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$line = str_repeat("-", 32) . "\n";
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$out = "";
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$out .= $esc . "@"; // Initialize printer
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$out .= $esc . "!" . "\x38"; // Double height and width
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$out .= $esc . "a" . "\x01"; // Center align
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$out .= ($company['company_name'] ?? 'Restaurant') . "\n";
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$out .= $esc . "!" . "\x00"; // Reset
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$out .= ($company['address'] ?? '') . "\n";
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$out .= ($company['phone'] ?? '') . "\n\n";
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$out .= $esc . "a" . "\x00"; // Left align
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$out .= "Order ID: #" . $order['id'] . "\n";
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$out .= "Date: " . ($order['created_at'] ?? date('Y-m-d H:i:s')) . "\n";
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$out .= $line;
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foreach ($items as $item) {
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$name = substr(($item['product_name'] ?? $item['name'] ?? 'Item'), 0, 20);
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$qty = ($item['quantity'] ?? 1) . "x";
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$price = number_format((float)($item['unit_price'] ?? $item['price'] ?? 0), 2);
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$out .= sprintf("% -20s %3s %7s\n", $name, $qty, $price);
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if (!empty($item['variant_name'])) {
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$out .= " (" . $item['variant_name'] . ")\n";
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}
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}
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$out .= $line;
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$out .= sprintf("% -20s %11s\n", "TOTAL", number_format((float)($order['total_amount'] ?? 0), 2));
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$out .= "\n\n\n\n";
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$out .= $esc . "m"; // Cut paper
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return $out;
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}
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}
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