Merge Invoice and Bill into Document

app/Models/Document/DocumentTotal.php

@@ -0,0 +1,93 @@
+<?php
+
+namespace App\Models\Document;
+
+use App\Abstracts\Model;
+use App\Models\Setting\Tax;
+use App\Traits\DateTime;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class DocumentTotal extends Model
+{
+    use DateTime;
+
+    protected $table = 'document_totals';
+
+    protected $appends = ['title'];
+
+    protected $fillable = ['company_id', 'type', 'document_id', 'code', 'name', 'amount', 'sort_order'];
+
+    /**
+     * The attributes that should be cast.
+     *
+     * @var array
+     */
+    protected $casts = [
+        'amount' => 'double',
+    ];
+
+    public function document()
+    {
+        return $this->belongsTo('App\Models\Document\Document');
+    }
+
+    public function getTitleAttribute()
+    {
+        $title = $this->name;
+
+        $percent = 0;
+
+        $tax = null;
+
+        switch ($this->code) {
+            case 'discount':
+                $title = trans($title);
+                $percent = $this->document->discount;
+
+                break;
+            case 'tax':
+                $tax = Tax::where('name', $title)->first();
+
+                if (!empty($tax->rate)) {
+                    $percent = $tax->rate;
+                }
+
+                break;
+        }
+
+        if (!empty($percent)) {
+            $title .= ' (';
+
+            if (setting('localisation.percent_position', 'after') === 'after') {
+                $title .= ($this->code === 'discount') ? $percent . '%' : (($tax->type === 'fixed') ? $percent : $percent . '%');
+            } else {
+                $title .= ($this->code === 'discount') ? '%' . $percent : (($tax->type === 'fixed') ? $percent : '%' . $percent);
+            }
+
+            $title .= ')';
+        }
+
+        return $title;
+    }
+
+    public function scopeType(Builder $query, string $type)
+    {
+        return $query->where($this->table . '.type', '=', $type);
+    }
+
+    public function scopeInvoice(Builder $query)
+    {
+        return $query->where($this->table . '.type', '=', Document::INVOICE_TYPE);
+    }
+
+    public function scopeBill(Builder $query)
+    {
+        return $query->where($this->table . '.type', '=', Document::BILL_TYPE);
+    }
+
+    public function scopeCode($query, $code)
+    {
+        return $query->where('code', '=', $code);
+    }
+}