add payment option

app/Models/Payment.php

@@ -2,16 +2,76 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\SoftDeletes;
+use App\Models\Activity;
 
 class Payment extends Model
 {
     use HasFactory;
+    use SoftDeletes;
+
+    protected $fillable = [
+        'account_id',
+        'amount_cents',
+        'currency',
+        'reference',
+        'paid_at',
+        'meta',
+        'created_by',
+        'activity_id',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'paid_at' => 'datetime',
+            'meta' => 'array',
+            'amount_cents' => 'integer',
+        ];
+    }
+
+    public function account(): BelongsTo
+    {
+        return $this->belongsTo(Account::class);
+    }
+
+    public function bookings(): HasMany
+    {
+        return $this->hasMany(Booking::class);
+    }
+
+    public function activity(): BelongsTo
+    {
+        return $this->belongsTo(Activity::class);
+    }
 
     public function type(): BelongsTo
     {
         return $this->belongsTo(\App\Models\PaymentType::class);
     }
+
+    /**
+     * Accessor to expose decimal amount for JSON serialization and UI convenience.
+     */
+    protected function amount(): Attribute
+    {
+        return Attribute::get(function () {
+            $cents = (int) ($this->attributes['amount_cents'] ?? 0);
+
+            return $cents / 100;
+        });
+    }
+
+    /**
+     * Mutator to set amount via decimal; stores in cents.
+     */
+    public function setAmountAttribute($value): void
+    {
+        $this->attributes['amount_cents'] = (int) round(((float) $value) * 100);
+    }
 }