<?php

namespace Tests\Unit\Catalog;

use App\Domains\Attachable\Models\Attachment;
use App\Domains\Catalog\Enums\CatalogItemType;
use App\Domains\Catalog\Enums\InventoryPolicy;
use App\Domains\Catalog\Enums\ProductLayout;
use App\Domains\Catalog\Models\Attribute;
use App\Domains\Catalog\Models\AttributeOption;
use App\Domains\Catalog\Models\Brand;
use App\Domains\Catalog\Models\BundleComponent;
use App\Domains\Catalog\Models\CatalogItem;
use App\Domains\Catalog\Models\Category;
use App\Domains\Catalog\Models\FeaturedGroup;
use App\Domains\Catalog\Models\FeaturedItem;
use App\Domains\Catalog\Models\Inventory;
use App\Domains\Catalog\Models\ItemAttribute;
use App\Domains\Catalog\Models\Variant;
use App\Domains\Catalog\Models\VariantDefinition;
use App\Domains\Shared\Enums\FieldType;
use App\Domains\Tenant\Models\Tenant;
use Illuminate\Database\Eloquent\Collection as EloquentCollection;
use Tests\TestCase;

class CatalogModelsTest extends TestCase
{
    public function test_attribute_maps_its_values_and_relations(): void
    {
        $attribute = new Attribute;
        $attribute->setRawAttributes([
            'is_required' => 1,
            'metadata_schema' => '{"swatch":true}',
            'type' => FieldType::Select->value,
        ]);

        $this->assertSame('attribute', $attribute->getTable());
        $this->assertTrue($attribute->is_required);
        $this->assertSame(['swatch' => true], $attribute->metadata_schema);
        $this->assertSame(FieldType::Select, $attribute->type);
        $this->assertInstanceOf(Tenant::class, $attribute->tenant()->getRelated());
        $this->assertInstanceOf(AttributeOption::class, $attribute->options()->getRelated());
    }

    public function test_catalog_item_is_the_catalog_root(): void
    {
        $item = new CatalogItem;
        $item->setRawAttributes([
            'category_id' => '10',
            'brand_id' => '20',
            'inventory_id' => '30',
            'type' => CatalogItemType::Standard->value,
            'precio' => '12.50',
            'inventory_policy' => InventoryPolicy::Tracked->value,
            'has_tickets' => 1,
        ]);

        $this->assertSame('catalog_items', $item->getTable());
        $this->assertFalse($item->usesTimestamps());
        $this->assertSame(10, $item->category_id);
        $this->assertSame(20, $item->brand_id);
        $this->assertSame(30, $item->inventory_id);
        $this->assertSame(CatalogItemType::Standard, $item->type);
        $this->assertSame('12.50', $item->precio);
        $this->assertSame(InventoryPolicy::Tracked, $item->inventory_policy);
        $this->assertTrue($item->has_tickets);
        $this->assertInstanceOf(Tenant::class, $item->tenant()->getRelated());
        $this->assertInstanceOf(Category::class, $item->category()->getRelated());
        $this->assertInstanceOf(Brand::class, $item->brand()->getRelated());
        $this->assertInstanceOf(Inventory::class, $item->inventory()->getRelated());
        $this->assertInstanceOf(BundleComponent::class, $item->bundleComponents()->getRelated());
        $this->assertInstanceOf(BundleComponent::class, $item->bundleComponentUsages()->getRelated());
        $this->assertInstanceOf(Variant::class, $item->variants()->getRelated());
        $this->assertInstanceOf(Attribute::class, $item->attributes()->getRelated());
        $this->assertInstanceOf(ItemAttribute::class, $item->itemAttributes()->getRelated());
        $this->assertInstanceOf(FeaturedItem::class, $item->featuredItems()->getRelated());
        $this->assertInstanceOf(Attachment::class, $item->attachments()->getRelated());
        $this->assertSame('catalog_items_attachments', $item->attachments()->getTable());
    }

    public function test_featured_models_map_catalog_relations_and_layout(): void
    {
        $group = new FeaturedGroup;
        $group->setRawAttributes([
            'product_layout' => ProductLayout::ColumnWithImage->value,
            'group_order' => '2',
        ]);
        $featuredItem = new FeaturedItem;
        $featuredItem->setRawAttributes([
            'featured_group_id' => '10',
            'catalog_item_id' => '20',
            'order' => '3',
        ]);

        $this->assertSame('featured_groups', $group->getTable());
        $this->assertFalse($group->usesTimestamps());
        $this->assertSame(ProductLayout::ColumnWithImage, $group->product_layout);
        $this->assertSame(2, $group->group_order);
        $this->assertInstanceOf(Tenant::class, $group->tenant()->getRelated());
        $this->assertInstanceOf(FeaturedItem::class, $group->featuredItems()->getRelated());

        $this->assertSame('featured_items', $featuredItem->getTable());
        $this->assertFalse($featuredItem->usesTimestamps());
        $this->assertSame(10, $featuredItem->featured_group_id);
        $this->assertSame(20, $featuredItem->catalog_item_id);
        $this->assertSame(3, $featuredItem->order);
        $this->assertInstanceOf(FeaturedGroup::class, $featuredItem->featuredGroup()->getRelated());
        $this->assertInstanceOf(CatalogItem::class, $featuredItem->catalogItem()->getRelated());
    }

    public function test_variant_has_direct_catalog_and_inventory_relations(): void
    {
        $variant = new Variant;
        $variant->setRawAttributes(['catalog_item_id' => '10', 'inventory_id' => '20']);

        $this->assertSame('variantes', $variant->getTable());
        $this->assertSame(10, $variant->catalog_item_id);
        $this->assertSame(20, $variant->inventory_id);
        $this->assertInstanceOf(CatalogItem::class, $variant->catalogItem()->getRelated());
        $this->assertInstanceOf(Inventory::class, $variant->inventory()->getRelated());
        $this->assertInstanceOf(VariantDefinition::class, $variant->definitions()->getRelated());
        $this->assertInstanceOf(Attachment::class, $variant->attachments()->getRelated());
        $this->assertSame('catalog_items_attachments', $variant->attachments()->getTable());
    }

    public function test_inventory_maps_stock_without_a_polymorphic_owner(): void
    {
        $inventory = $this->trackedInventory(realStock: 10, reservedStock: 3);
        $inventory->sold_units = '2';

        $this->assertSame('inventories', $inventory->getTable());
        $this->assertFalse($inventory->usesTimestamps());
        $this->assertSame(2, $inventory->sold_units);
        $this->assertSame(7, $inventory->availableStock());
        $this->assertInstanceOf(CatalogItem::class, $inventory->catalogItem()->getRelated());
        $this->assertInstanceOf(Variant::class, $inventory->variant()->getRelated());
    }

    public function test_catalog_item_aggregates_variant_inventory(): void
    {
        $first = (new Variant)->setRelation('inventory', $this->trackedInventory(10, 3));
        $second = (new Variant)->setRelation('inventory', $this->trackedInventory(5, 1));
        $item = new CatalogItem;
        $item->inventory_policy = InventoryPolicy::Tracked;
        $item->setRelation('variants', new EloquentCollection([$first, $second]));
        $item->setRelation('inventory', null);

        $this->assertSame(11, $item->availableStock());
        $this->assertTrue($item->isAvailable());
    }

    public function test_catalog_item_prioritizes_its_inventory_over_variants(): void
    {
        $item = new CatalogItem;
        $item->inventory_policy = InventoryPolicy::Tracked;
        $item->setRelation('variants', new EloquentCollection([
            (new Variant)->setRelation('inventory', $this->trackedInventory(100, 0)),
        ]));
        $item->setRelation('inventory', $this->trackedInventory(8, 2));

        $this->assertSame(6, $item->availableStock());
        $this->assertTrue($item->isAvailable());
    }

    public function test_item_attribute_and_variant_definition_use_catalog_keys(): void
    {
        $itemAttribute = new ItemAttribute;
        $definition = new VariantDefinition;

        $this->assertSame('item_attributes', $itemAttribute->getTable());
        $this->assertInstanceOf(CatalogItem::class, $itemAttribute->catalogItem()->getRelated());
        $this->assertInstanceOf(Attribute::class, $itemAttribute->attribute()->getRelated());
        $this->assertInstanceOf(VariantDefinition::class, $itemAttribute->variantDefinitions()->getRelated());
        $this->assertSame('variant_values', $definition->getTable());
        $this->assertInstanceOf(Variant::class, $definition->variant()->getRelated());
        $this->assertInstanceOf(ItemAttribute::class, $definition->itemAttribute()->getRelated());
    }

    private function trackedInventory(int $realStock, int $reservedStock): Inventory
    {
        $inventory = new Inventory;
        $inventory->setRawAttributes([
            'real_stock' => $realStock,
            'reserved_stock' => $reservedStock,
        ]);

        return $inventory;
    }
}