From 34e87003b4969cd1723e2dac0627e68afa60d2ec Mon Sep 17 00:00:00 2001
From: JhaoDa <jhaoda@gmail.com>
Date: Thu, 2 Jul 2020 21:57:35 +0300
Subject: [PATCH] Batch printing

---
 src/Compiler.php       | 38 +++++++++++++++++++++++++++++---------
 src/Contract/Job.php   | 20 ++++++++++++++++++++
 src/Contract/Label.php |  2 +-
 src/Label/Batch.php    | 38 ++++++++++++++++++++++++++++++++++++++
 src/Label/Label.php    | 15 +++++++++++++++
 src/Printer.php        |  6 +++---
 6 files changed, 106 insertions(+), 13 deletions(-)
 create mode 100644 src/Contract/Job.php
 create mode 100644 src/Label/Batch.php

diff --git a/src/Compiler.php b/src/Compiler.php
index 4be1dd6..6ed2a28 100644
--- a/src/Compiler.php
+++ b/src/Compiler.php
@@ -14,6 +14,8 @@
 
 namespace PhpAidc\LabelPrinter;
 
+use PhpAidc\LabelPrinter\Label\Batch;
+use PhpAidc\LabelPrinter\Contract\Job;
 use PhpAidc\LabelPrinter\Contract\Label;
 use PhpAidc\LabelPrinter\Contract\Language;
 
@@ -32,19 +34,17 @@ public function __construct(Language $language)
         $this->language = $language;
     }
 
-    public function compile(Label $label, int $copies = 1): string
+    public function compile(Job $job): string
     {
-        $instructions = [
-            $this->language->compileDeclaration($label),
-        ];
+        $instructions = [];
 
-        foreach ($label->getCommands(\get_class($this->language)) as $command) {
-            if ($this->language->isSupport($command)) {
-                $instructions[] = $this->language->compileCommand($command);
-            }
+        if ($job instanceof Label) {
+            $instructions[] = $this->compileLabel($job);
         }
 
-        $instructions[] = $this->language->compilePrint($copies);
+        if ($job instanceof Batch) {
+            $instructions[] = $this->compileBatch($job);
+        }
 
         $payload = \array_reduce($instructions, static function ($carry, $item) {
             return $item instanceof \Generator
@@ -54,4 +54,24 @@ public function compile(Label $label, int $copies = 1): string
 
         return \implode($payload);
     }
+
+    private function compileLabel(Label $label): iterable
+    {
+        yield from $this->language->compileDeclaration($label);
+
+        foreach ($label->getCommands(\get_class($this->language)) as $command) {
+            if ($this->language->isSupport($command)) {
+                yield from $this->language->compileCommand($command);
+            }
+        }
+
+        yield from $this->language->compilePrint($label->getCopies());
+    }
+
+    private function compileBatch(Batch $batch): iterable
+    {
+        foreach ($batch->getLabels() as $label) {
+            yield from $this->compileLabel($label);
+        }
+    }
 }
diff --git a/src/Contract/Job.php b/src/Contract/Job.php
new file mode 100644
index 0000000..d21b8a2
--- /dev/null
+++ b/src/Contract/Job.php
@@ -0,0 +1,20 @@
+<?php
+
+/**
+ * This file is part of Appwilio LabelPrinter package.
+ *
+ *  © appwilio (https://appwilio.com)
+ *  © JhaoDa (https://github.com/jhaoda)
+ *
+ *  For the full copyright and license information, please view the LICENSE
+ *  file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace PhpAidc\LabelPrinter\Contract;
+
+interface Job
+{
+    //
+}
diff --git a/src/Contract/Label.php b/src/Contract/Label.php
index d76af07..671b415 100644
--- a/src/Contract/Label.php
+++ b/src/Contract/Label.php
@@ -17,7 +17,7 @@
 use PhpAidc\LabelPrinter\Enum\Charset;
 use PhpAidc\LabelPrinter\Enum\Direction;
 
-interface Label
+interface Label extends Job
 {
     public function charset(Charset $value);
 
diff --git a/src/Label/Batch.php b/src/Label/Batch.php
new file mode 100644
index 0000000..42580cf
--- /dev/null
+++ b/src/Label/Batch.php
@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * This file is part of Appwilio LabelPrinter package.
+ *
+ *  © appwilio (https://appwilio.com)
+ *  © JhaoDa (https://github.com/jhaoda)
+ *
+ *  For the full copyright and license information, please view the LICENSE
+ *  file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace PhpAidc\LabelPrinter\Label;
+
+use PhpAidc\LabelPrinter\Contract\Job;
+use PhpAidc\LabelPrinter\Contract\Label as LabelContract;
+
+final class Batch implements Job
+{
+    private $labels = [];
+
+    public function add(LabelContract $label)
+    {
+        $this->labels[] = $label;
+
+        return $this;
+    }
+
+    /**
+     * @return LabelContract[]
+     */
+    public function getLabels()
+    {
+        return $this->labels;
+    }
+}
diff --git a/src/Label/Label.php b/src/Label/Label.php
index fe678c3..2ce892b 100644
--- a/src/Label/Label.php
+++ b/src/Label/Label.php
@@ -26,6 +26,9 @@ final class Label implements LabelContract
 
     private $commands = [];
 
+    /** @var int */
+    private $copies = 1;
+
     /** @var Charset|null */
     private $charset;
 
@@ -67,6 +70,18 @@ public function charset(Charset $value)
         return $this;
     }
 
+    public function copies(int $copies)
+    {
+        $this->copies = $copies;
+
+        return $this;
+    }
+
+    public function getCopies(): int
+    {
+        return $this->copies;
+    }
+
     public function getCharset(): ?Charset
     {
         return $this->charset;
diff --git a/src/Printer.php b/src/Printer.php
index de8a074..f2555ec 100644
--- a/src/Printer.php
+++ b/src/Printer.php
@@ -14,7 +14,7 @@
 
 namespace PhpAidc\LabelPrinter;
 
-use PhpAidc\LabelPrinter\Contract\Label;
+use PhpAidc\LabelPrinter\Contract\Job;
 use PhpAidc\LabelPrinter\Contract\Connector;
 
 final class Printer
@@ -31,13 +31,13 @@ public function __construct(Connector $connector, ?Compiler $compiler = null)
         $this->compiler = $compiler;
     }
 
-    public function print(Label $label, int $copies = 1): void
+    public function print(Job $job): void
     {
         if ($this->compiler === null) {
             throw new \DomainException();
         }
 
-        $this->connector->write($this->compiler->compile($label, $copies));
+        $this->connector->write($this->compiler->compile($job));
     }
 
     public function send($payload): void