Refactor to remove slices and environments, replace with instances.

app/Jobs/Applications/DeployApplication.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace App\Jobs\Applications;
+
+use App\Enums\DeploymentStatus;
+use App\Models\Application;
+use App\Models\Deployment;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Queue\Queueable;
+
+class DeployApplication implements ShouldQueue
+{
+    use Queueable;
+
+    protected Deployment $deployment;
+
+    public function __construct(
+        public Application $application,
+    ) {
+        //
+    }
+
+    public function handle(): void
+    {
+        $this->deployment = $this->application->deployments()->create([
+            'status' => DeploymentStatus::PENDING,
+        ]);
+
+        foreach ($this->application->instances as $instance) {
+            $step = $this->deployment->steps()->create([
+                'name' => "Deploy to {$instance->server->name}",
+                'order' => $instance->id,
+                'status' => DeploymentStatus::PENDING,
+                'script' => $this->getDeploymentScript($instance),
+                'secrets' => [],
+            ]);
+            
+            $step->dispatchJob();
+        }
+    }
+
+    protected function getDeploymentScript($instance): string
+    {
+        return "#!/bin/bash\n" .
+               "cd /opt/apps/{$this->application->name}-{$instance->id}\n" .
+               "git fetch origin\n" .
+               "git checkout {$instance->branch}\n" .
+               "git pull origin {$instance->branch}\n";
+    }
+
+    public function failed(\Throwable $exception): void
+    {
+        if (isset($this->deployment)) {
+            $this->deployment->update([
+                'status' => DeploymentStatus::FAILED,
+            ]);
+        }
+    }
+}