<?php

namespace Tests\Feature\Catalog;

use App\Domains\Attachable\Enums\AttachmentType;
use App\Domains\Attachable\Models\Attachment;
use App\Domains\Catalog\Enums\InventoryPolicy;
use App\Domains\Catalog\Models\Attribute;
use App\Domains\Catalog\Models\CatalogItem;
use App\Domains\Catalog\Models\Inventory;
use App\Domains\Catalog\Models\ItemAttribute;
use App\Domains\Catalog\Models\Variant;
use App\Domains\Shared\Enums\FieldType;
use App\Domains\Tenant\Models\Tenant;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Storage;
use Tests\TestCase;

class CatalogItemDetailControllerTest extends TestCase
{
    use RefreshDatabase;

    public function test_it_returns_item_images_and_stock_when_the_item_has_no_variants(): void
    {
        Storage::fake('s3');
        $tenant = $this->createTenant('detail-direct');
        $inventory = Inventory::query()->create([
            'real_stock' => 10,
            'reserved_stock' => 3,
        ]);
        $item = $this->createItem($tenant, 'Direct item', $inventory);
        $itemImage = $this->createAttachment('direct-item');
        $item->attachments()->attach($itemImage, ['orden' => 0]);

        $response = $this->getJson(
            "/api/tenants/{$tenant->codigo}/catalog-items/{$item->id}"
        );

        $response
            ->assertOk()
            ->assertJsonPath('data.stock_tecnico', 7)
            ->assertJsonCount(0, 'data.variants')
            ->assertJsonCount(1, 'data.images');
        $response->assertJsonMissingPath('data.selected_variant');
        $this->assertStringContainsString($itemImage->path, $response->json('data.images.0'));
    }

    public function test_it_selects_the_first_variant_and_returns_its_images_by_default(): void
    {
        Storage::fake('s3');
        $tenant = $this->createTenant('detail-default');
        $item = $this->createItem($tenant, 'Variant item');
        $itemImage = $this->createAttachment('item-image');
        $item->attachments()->attach($itemImage, ['orden' => 0]);

        $firstVariant = $this->createVariant($item, 0, 0);
        $secondVariant = $this->createVariant($item, 8, 2);
        $firstImage = $this->createAttachment('first-variant');
        $secondImage = $this->createAttachment('second-variant');
        $firstVariant->attachments()->attach($firstImage, ['orden' => 0]);
        $secondVariant->attachments()->attach($secondImage, ['orden' => 0]);

        $response = $this->getJson(
            "/api/tenants/{$tenant->codigo}/catalog-items/{$item->id}"
        );

        $response
            ->assertOk()
            ->assertJsonPath('data.selected_variant.id', $firstVariant->id)
            ->assertJsonPath('data.selected_variant.stock_tecnico', 0)
            ->assertJsonCount(1, 'data.selected_variant.images');
        $response
            ->assertJsonMissingPath('data.stock_tecnico')
            ->assertJsonMissingPath('data.images');
        $this->assertStringContainsString($firstImage->path, $response->json('data.selected_variant.images.0'));
        $this->assertStringNotContainsString($itemImage->path, $response->json('data.selected_variant.images.0'));
    }

    public function test_it_selects_the_requested_variant_and_lists_variant_values_and_stock(): void
    {
        Storage::fake('s3');
        $tenant = $this->createTenant('detail-requested');
        $item = $this->createItem($tenant, 'Shirt');
        $size = Attribute::query()->create([
            'tenant_codigo' => $tenant->codigo,
            'codigo' => 'size',
            'nombre' => 'Size',
            'type' => FieldType::String,
        ]);
        $itemSize = ItemAttribute::query()->create([
            'catalog_item_id' => $item->id,
            'attribute_id' => $size->id,
        ]);
        $size->options()->createMany([
            ['value' => 'S', 'label' => 'Small', 'sort_order' => 0],
            ['value' => 'M', 'label' => 'Medium', 'sort_order' => 1],
            ['value' => 'L', 'label' => 'Large', 'sort_order' => 2],
        ]);
        $firstVariant = $this->createVariant($item, 5, 1);
        $secondVariant = $this->createVariant($item, 9, 2);
        $firstVariant->definitions()->create([
            'item_attribute_id' => $itemSize->id,
            'value' => 'S',
        ]);
        $secondVariant->definitions()->create([
            'item_attribute_id' => $itemSize->id,
            'value' => 'M',
        ]);
        $secondImage = $this->createAttachment('selected-variant');
        $secondVariant->attachments()->attach($secondImage, ['orden' => 0]);

        $response = $this->getJson(
            "/api/tenants/{$tenant->codigo}/catalog-items/{$item->id}?variant_id={$secondVariant->id}"
        );

        $response
            ->assertOk()
            ->assertJsonPath('data.variants.0.id', $firstVariant->id)
            ->assertJsonPath('data.variants.0.stock_tecnico', 4)
            ->assertJsonPath('data.variants.0.values.size', 'S')
            ->assertJsonPath('data.variants.1.id', $secondVariant->id)
            ->assertJsonPath('data.variants.1.stock_tecnico', 7)
            ->assertJsonPath('data.variants.1.values.size', 'M')
            ->assertJsonPath('data.attributes.0.codigo', 'size')
            ->assertJsonPath('data.attributes.0.options.0.value', 'S')
            ->assertJsonPath('data.attributes.0.options.1.value', 'M')
            ->assertJsonCount(2, 'data.attributes.0.options')
            ->assertJsonPath('data.selected_variant.id', $secondVariant->id)
            ->assertJsonPath('data.selected_variant.stock_tecnico', 7)
            ->assertJsonPath('data.selected_variant.values.size', 'M')
            ->assertJsonCount(1, 'data.selected_variant.images');
        $response
            ->assertJsonMissingPath('data.stock_tecnico')
            ->assertJsonMissingPath('data.images')
            ->assertJsonMissingPath('data.variants.0.images')
            ->assertJsonMissingPath('data.variants.1.images');
        $this->assertStringContainsString(
            $secondImage->path,
            $response->json('data.selected_variant.images.0'),
        );
    }

    public function test_it_rejects_an_invalid_or_foreign_variant(): void
    {
        $tenant = $this->createTenant('detail-invalid');
        $item = $this->createItem($tenant, 'Requested item');
        $otherItem = $this->createItem($tenant, 'Other item');
        $foreignVariant = $this->createVariant($otherItem, 5, 0);

        $this->getJson(
            "/api/tenants/{$tenant->codigo}/catalog-items/{$item->id}?variant_id=abc"
        )->assertUnprocessable()->assertJsonValidationErrors('variant_id');

        $this->getJson(
            "/api/tenants/{$tenant->codigo}/catalog-items/{$item->id}?variant_id={$foreignVariant->id}"
        )->assertNotFound();
    }

    public function test_it_returns_null_technical_stock_for_unlimited_variants(): void
    {
        $tenant = $this->createTenant('detail-unlimited');
        $item = $this->createItem($tenant, 'Unlimited item', policy: InventoryPolicy::Unlimited);
        $variant = $this->createVariant($item, 0, 20);

        $this->getJson("/api/tenants/{$tenant->codigo}/catalog-items/{$item->id}")
            ->assertOk()
            ->assertJsonPath('data.selected_variant.id', $variant->id)
            ->assertJsonPath('data.selected_variant.stock_tecnico', null)
            ->assertJsonMissingPath('data.stock_tecnico')
            ->assertJsonPath('data.variants.0.stock_tecnico', null);
    }

    private function createItem(
        Tenant $tenant,
        string $name,
        ?Inventory $inventory = null,
        InventoryPolicy $policy = InventoryPolicy::Tracked,
    ): CatalogItem {
        return CatalogItem::query()->create([
            'tenant_code' => $tenant->codigo,
            'inventory_id' => $inventory?->id,
            'slug' => str($name)->slug()->toString(),
            'nombre' => $name,
            'descripcion' => "{$name} description",
            'precio' => 100,
            'inventory_policy' => $policy,
        ]);
    }

    private function createVariant(CatalogItem $item, int $realStock, int $reservedStock): Variant
    {
        $inventory = Inventory::query()->create([
            'real_stock' => $realStock,
            'reserved_stock' => $reservedStock,
        ]);

        return $item->variants()->create(['inventory_id' => $inventory->id]);
    }

    private function createTenant(string $code): Tenant
    {
        $headerLogo = $this->createAttachment("{$code}-header");
        $footerLogo = $this->createAttachment("{$code}-footer");

        return Tenant::query()->create([
            'codigo' => $code,
            'nombre' => ucfirst($code),
            'dominio' => "{$code}.local",
            'primary_color' => '#000000',
            'secondary_color' => '#000000',
            'danger_color' => '#000000',
            'success_color' => '#000000',
            'header_bg_color' => '#000000',
            'footer_bg_color' => '#000000',
            'header_logo_id' => $headerLogo->id,
            'footer_logo_id' => $footerLogo->id,
        ]);
    }

    private function createAttachment(string $name): Attachment
    {
        return Attachment::query()->create([
            'path' => "test/{$name}.png",
            'filename' => "{$name}.png",
            'type' => AttachmentType::Image,
            'mime_type' => 'image/png',
        ]);
    }
}