Implementing CLI entrypoint.

src/Command/InvoiceGeneratorCommand.php

@@ -2,12 +2,76 @@
 
 namespace App\Command;
 
-use Asika\SimpleConsole\Console;
+use App\Generator\InvoiceGenerator;
+use App\Invoice\InvoiceData;
+use App\Kernel;
+use Asika\SimpleConsole\{CommandArgsException, Console};
+use Mpdf\Mpdf;
+use Symfony\Component\Yaml\Yaml;
 
 class InvoiceGeneratorCommand extends Console
 {
+    private const OUTPUT_NAME_TEMPLATE = 'invoice_%d_%s.pdf';
+
+    protected $help = <<<HELP
+[Usage] generate <number> <path>
+
+[Arguments]
+    number           Invoice number
+    path             Can be directory or file name. File name will be generated if directory is used.
+
+[Options]
+    i | issue-date   Invoice issue date (format: '20.10.2040')
+    a | month-date   Accounted month date (format: '20.10.2040')
+    
+    h | help         Show help information
+    v                Show more debug information.
+HELP;
+
     protected function doExecute(): int
     {
+        $number = $this->getArgument(0);
+        $path = $this->getArgument(1);
+        if (!$number) {
+            throw new CommandArgsException('Invoice number is mandatory.');
+        }
+        if (!$path) {
+            throw new CommandArgsException('Path is mandatory.');
+        }
+
+        $config = Yaml::parseFile(Kernel::getProjectRoot().'/config/parameters.yaml');
+
+        $now = new \DateTime();
+
+        $issueDate = $this->getOption(['i', 'issue-date'], $now->format('d.m.y'));
+        $accountedMonthDate = $this->getOption(['a', 'month-date'], $issueDate);
+
+        $invoice = new InvoiceData(
+            (int) $this->getArgument(0),
+            new \DateTime($issueDate),
+            new \DateTime($config['contract']['date_from']),
+            new \DateTime($accountedMonthDate)
+        );
+
+        $html = InvoiceGenerator::generate($invoice, $config);
+
+        $mpdf = new Mpdf();
+        $mpdf->WriteHTML($html);
+
+        if (is_dir($path)) {
+            $filePath = realpath($path).'/'.sprintf(
+                self::OUTPUT_NAME_TEMPLATE,
+                $number,
+                    $invoice->getIssueDate()->format('d_m_y')
+            );
+        } else {
+            $filePath = $path;
+        }
+
+        $mpdf->Output($filePath, 'F');
+
+        $this->out($filePath.' exported.');
+
         return 0;
     }
 }