refactor(catalog): Complete catalog refactor to simplify its data model and its querying.

source commits: refactor/catalog

app/Domains/Catalog/Models/Variant.php

@@ -0,0 +1,92 @@
+<?php
+
+namespace App\Domains\Catalog\Models;
+
+use App\Domains\Attachable\Models\Attachment;
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+#[Fillable([
+    'catalog_item_id',
+    'inventory_id',
+])]
+class Variant extends Model
+{
+    use HasFactory;
+
+    public $timestamps = false;
+
+    protected $table = 'variantes';
+
+    protected function casts(): array
+    {
+        return [
+            'catalog_item_id' => 'integer',
+            'inventory_id' => 'integer',
+        ];
+    }
+
+    /** @return BelongsTo<CatalogItem, $this> */
+    public function catalogItem(): BelongsTo
+    {
+        return $this->belongsTo(CatalogItem::class);
+    }
+
+    /** @return BelongsTo<Inventory, $this> */
+    public function inventory(): BelongsTo
+    {
+        return $this->belongsTo(Inventory::class);
+    }
+
+    /** @return HasMany<VariantDefinition, $this> */
+    public function definitions(): HasMany
+    {
+        return $this->hasMany(VariantDefinition::class);
+    }
+
+    /** @return BelongsToMany<Attachment, $this> */
+    public function attachments(): BelongsToMany
+    {
+        $relation = $this->belongsToMany(
+            Attachment::class,
+            'catalog_items_attachments',
+            'variant_id',
+            'attachment_id'
+        )
+            ->withPivot('orden')
+            ->orderByPivot('orden');
+
+        if ($this->catalog_item_id !== null) {
+            $relation->withPivotValue('catalog_item_id', $this->catalog_item_id);
+        }
+
+        return $relation;
+    }
+
+    public function getPrice(): float
+    {
+        return $this->catalogItem->getPrice();
+    }
+
+    public function getName(): string
+    {
+        $name = $this->catalogItem->nombre;
+        $this->loadMissing('definitions.itemAttribute.attribute');
+        $definitions = $this->definitions
+            ->map(function (VariantDefinition $definition): ?string {
+                $attributeName = $definition->itemAttribute?->attribute?->nombre;
+
+                return $attributeName
+                    ? "{$attributeName}: {$definition->value}"
+                    : $definition->value;
+            })
+            ->filter()
+            ->implode(', ');
+
+        return $definitions === '' ? $name : "{$name} ({$definitions})";
+    }
+}