feat: subscriptions

app/Models/User.php

@@ -47,6 +47,8 @@ class User extends Authenticatable implements FilamentUser, HasAvatar, HasLocale
         'height',
         'bio',
         'account_verified_at',
+        'certification_purchased_at',
+        'trial_ends_at',
         'daily_calorie_goal',
         'daily_protein_goal',
         'daily_carbs_goal',
@@ -82,6 +84,7 @@ class User extends Authenticatable implements FilamentUser, HasAvatar, HasLocale
         return [
             'email_verified_at' => 'datetime',
             'account_verified_at' => 'datetime',
+            'certification_purchased_at' => 'datetime',
             'password' => 'hashed',
             'daily_calorie_goal' => 'integer',
             'daily_protein_goal' => 'float',
@@ -129,6 +132,11 @@ class User extends Authenticatable implements FilamentUser, HasAvatar, HasLocale
         return $this->hasMany(PaymentTransaction::class);
     }
 
+    public function identityVerificationRequest(): HasOne
+    {
+        return $this->hasOne(IdentityVerificationRequest::class);
+    }
+
     public function workouts(): HasMany
     {
         return $this->hasMany(WorkoutSessions::class);
@@ -188,6 +196,25 @@ class User extends Authenticatable implements FilamentUser, HasAvatar, HasLocale
         return $this->suspended_at !== null;
     }
 
+    public function canAnalyzeMeals(): bool
+    {
+        return $this->subscribed('default') || $this->onGenericTrial();
+    }
+
+    public function analysisAccessLevel(): string
+    {
+        if ($this->subscribed('default')) {
+            return 'subscribed';
+        }
+
+        return $this->onGenericTrial() ? 'trial' : 'free';
+    }
+
+    public function hasPurchasedCertification(): bool
+    {
+        return $this->certification_purchased_at !== null;
+    }
+
     public function routeNotificationForExpoPush(): array
     {
         return $this->deviceTokens()