feat: initialize Dr-Panel project with patient file number support

app/Models/Visit.php

@@ -0,0 +1,80 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use App\Casts\JalaliDatetime;
+use App\Traits\HasUserStamps;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class Visit extends Model
+{
+    use HasUserStamps;
+
+    protected $fillable = [
+        'patient',
+        'visit_date',
+        'visit_time',
+        'treatment',
+        'treatment_cost',
+        'payment_type',
+        'paid_amount',
+        'pos_ul',
+        'pos_ll',
+        'pos_ur',
+        'pos_lr',
+        'treatment_description',
+        'doctor',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'treatment_cost' => 'integer',
+            'paid_amount'    => 'integer',
+            'pos_ul'         => 'integer',
+            'pos_ll'         => 'integer',
+            'pos_ur'         => 'integer',
+            'pos_lr'         => 'integer',
+            'created_at'     => JalaliDatetime::class,
+            'updated_at'     => JalaliDatetime::class,
+        ];
+    }
+
+    public function getRemainedAmountAttribute(): int
+    {
+        return (int) ($this->treatment_cost ?? 0) - (int) ($this->paid_amount ?? 0);
+    }
+
+    public function patientRecord(): BelongsTo
+    {
+        return $this->belongsTo(Patient::class, 'patient');
+    }
+
+    public function doctorRecord(): BelongsTo
+    {
+        return $this->belongsTo(Doctor::class, 'doctor');
+    }
+
+    public function treatmentRecord(): BelongsTo
+    {
+        return $this->belongsTo(Treatment::class, 'treatment');
+    }
+
+    public function paymentTypeRecord(): BelongsTo
+    {
+        return $this->belongsTo(PaymentType::class, 'payment_type');
+    }
+
+    public function creator(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'created_by');
+    }
+
+    public function updator(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'updated_by');
+    }
+}