refactor: susun semula struktur folder — Laravel source ke src/

src/app/Models/Certificate.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Str;
+
+class Certificate extends Model
+{
+    protected $fillable = [
+        'uuid', 'program_id', 'participant_id', 'certificate_template_id',
+        'certificate_no', 'file_path', 'token', 'status', 'error_message',
+        'generated_at', 'emailed_at', 'downloaded_at', 'download_count',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'generated_at'   => 'datetime',
+            'emailed_at'     => 'datetime',
+            'downloaded_at'  => 'datetime',
+            'download_count' => 'integer',
+        ];
+    }
+
+    protected static function boot(): void
+    {
+        parent::boot();
+        static::creating(function ($model) {
+            $model->uuid  ??= (string) Str::uuid();
+            $model->token ??= Str::random(48);
+        });
+    }
+
+    public function program()
+    {
+        return $this->belongsTo(Program::class);
+    }
+
+    public function participant()
+    {
+        return $this->belongsTo(Participant::class);
+    }
+
+    public function template()
+    {
+        return $this->belongsTo(CertificateTemplate::class, 'certificate_template_id');
+    }
+
+    public function emailLogs()
+    {
+        return $this->hasMany(EmailLog::class);
+    }
+
+    public function isGenerated(): bool
+    {
+        return $this->status === 'generated' || $this->status === 'emailed' || $this->status === 'downloaded';
+    }
+
+    public function recordDownload(): void
+    {
+        $this->increment('download_count');
+        if (! $this->downloaded_at) {
+            $this->update(['downloaded_at' => now(), 'status' => 'downloaded']);
+        }
+    }
+}