Displaying estimates

app/Models/CostUnitEstimate.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Models;
+
+use App\Casts\AmountCast;
+use App\Enumerations\InvoiceStatus;
+use App\Enumerations\InvoiceType;
+use App\Resources\EventResource;
+use App\Scopes\InstancedModel;
+use App\ValueObjects\Amount;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+
+class CostUnitEstimate extends InstancedModel
+{
+    protected $fillable = [
+        'tenant',
+        'cost_unit_id',
+        'type',
+        'description',
+        'flat_amount',
+        'amount_by_user',
+    ];
+
+    protected $casts = [
+        'flat_amount' =>  AmountCast::class,
+        'amount_by_user' => AmountCast::class,
+    ];
+
+    public function costUnit() : BelongsTo{
+        return $this->belongsTo(CostUnit::class);
+    }
+
+    public function invoiceType() : InvoiceType {
+        return $this->belongsTo(InvoiceType::class, 'type', 'slug')->first();
+    }
+
+    public function calculateAmount() : ?Amount {
+        switch (true) {
+            case $this->flat_amount !== null:
+                return $this->flat_amount;
+            default:
+                $event = $this->costUnit()->first()->event()?->first();
+                if (null !== $event) {
+
+                    $participants = $event->participants()->count();
+                    return $this->amount_by_user->multiply($participants);
+
+                } else {
+                    dd('U');
+                    return $this->amount_by_user;
+                }
+        }
+    }
+}