<?php

namespace Tests\Feature;

use App\Models\Reclamation;
use App\Models\Role;
use App\Models\Shortage;
use App\Models\SparePart;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class SparePartInventoryControllerTest extends TestCase
{
    use RefreshDatabase;

    protected $seed = true;

    private User $adminUser;
    private User $managerUser;
    private User $brigadierUser;

    protected function setUp(): void
    {
        parent::setUp();

        $this->adminUser = User::factory()->create(['role' => Role::ADMIN]);
        $this->managerUser = User::factory()->create(['role' => Role::MANAGER]);
        $this->brigadierUser = User::factory()->create(['role' => Role::BRIGADIER]);
    }

    // ==================== Authentication ====================

    public function test_guest_cannot_access_inventory(): void
    {
        $response = $this->get(route('spare_part_inventory.index'));

        $response->assertRedirect(route('login'));
    }

    // ==================== Authorization ====================

    public function test_brigadier_cannot_access_inventory(): void
    {
        $response = $this->actingAs($this->brigadierUser)
            ->get(route('spare_part_inventory.index'));

        $response->assertStatus(403);
    }

    // ==================== Index ====================

    public function test_admin_can_access_inventory_index(): void
    {
        $response = $this->actingAs($this->adminUser)
            ->get(route('spare_part_inventory.index'));

        $response->assertStatus(200);
        $response->assertViewIs('spare_parts.index');
    }

    public function test_manager_can_access_inventory_index(): void
    {
        $response = $this->actingAs($this->managerUser)
            ->get(route('spare_part_inventory.index'));

        $response->assertStatus(200);
        $response->assertViewIs('spare_parts.index');
    }

    public function test_inventory_view_has_required_data(): void
    {
        $response = $this->actingAs($this->adminUser)
            ->get(route('spare_part_inventory.index'));

        $response->assertStatus(200);
        $response->assertViewHas('critical_shortages');
        $response->assertViewHas('below_min_stock');
        $response->assertViewHas('open_shortages');
        $response->assertViewHas('tab');
    }

    public function test_inventory_shows_open_shortages(): void
    {
        $sparePart = SparePart::factory()->create([
            'min_stock' => 5,
        ]);

        $reclamation = Reclamation::factory()->create();

        $shortage = Shortage::factory()->create([
            'spare_part_id' => $sparePart->id,
            'reclamation_id' => $reclamation->id,
            'status' => Shortage::STATUS_OPEN,
            'required_qty' => 3,
            'reserved_qty' => 0,
            'missing_qty' => 3,
        ]);

        $response = $this->actingAs($this->adminUser)
            ->get(route('spare_part_inventory.index'));

        $response->assertStatus(200);
        $openShortages = $response->viewData('open_shortages');
        $this->assertTrue($openShortages->contains('id', $shortage->id));
    }

    public function test_inventory_does_not_show_closed_shortages(): void
    {
        $sparePart = SparePart::factory()->create();
        $reclamation = Reclamation::factory()->create();

        $closedShortage = Shortage::factory()->create([
            'spare_part_id' => $sparePart->id,
            'reclamation_id' => $reclamation->id,
            'status' => Shortage::STATUS_CLOSED,
            'required_qty' => 2,
            'reserved_qty' => 2,
            'missing_qty' => 0,
        ]);

        $response = $this->actingAs($this->adminUser)
            ->get(route('spare_part_inventory.index'));

        $response->assertStatus(200);
        $openShortages = $response->viewData('open_shortages');
        $this->assertFalse($openShortages->contains('id', $closedShortage->id));
    }

    public function test_inventory_shows_below_min_stock_parts(): void
    {
        // SparePart без SparePartOrders в STATUS_IN_STOCK => total_free_stock = 0
        // При min_stock > 0 isBelowMinStock() вернёт true
        $belowMinSparePart = SparePart::factory()->create([
            'min_stock' => 10,
        ]);

        $response = $this->actingAs($this->adminUser)
            ->get(route('spare_part_inventory.index'));

        $response->assertStatus(200);
        $belowMinStock = $response->viewData('below_min_stock');
        $this->assertTrue($belowMinStock->contains('id', $belowMinSparePart->id));
    }

    public function test_inventory_tab_is_set_correctly(): void
    {
        $response = $this->actingAs($this->adminUser)
            ->get(route('spare_part_inventory.index'));

        $response->assertStatus(200);
        $response->assertViewHas('tab', 'inventory');
    }
}