<?php

namespace Tests\Feature;

use App\Models\Reservation;
use App\Models\Role;
use App\Models\SparePart;
use App\Models\SparePartOrder;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class SparePartOrderControllerTest extends TestCase
{
    use RefreshDatabase;

    protected $seed = true;

    private User $adminUser;
    private User $managerUser;

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

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

    private function assertRedirectsToShowWithGeneratedNav($response, SparePartOrder $sparePartOrder): void
    {
        $location = $response->headers->get('Location');

        $this->assertNotNull($location);
        $this->assertStringStartsWith(route('spare_part_orders.show', $sparePartOrder), $location);
        $this->assertStringContainsString('nav=', $location);
    }

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

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

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

    public function test_guest_cannot_access_spare_part_order_create(): void
    {
        $response = $this->get(route('spare_part_orders.create'));

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

    public function test_guest_cannot_store_spare_part_order(): void
    {
        $response = $this->post(route('spare_part_orders.store'), []);

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

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

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

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

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

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

    public function test_index_passes_only_ordered_order_numbers_to_view(): void
    {
        SparePartOrder::factory()->ordered()->create([
            'order_number' => 'SP-BULK-001',
        ]);
        SparePartOrder::factory()->ordered()->create([
            'order_number' => 'SP-BULK-001',
        ]);
        SparePartOrder::factory()->ordered()->create([
            'order_number' => 'SP-BULK-002',
        ]);
        SparePartOrder::factory()->inStock()->create([
            'order_number' => 'SP-IN-STOCK-001',
        ]);
        SparePartOrder::factory()->ordered()->create([
            'order_number' => '',
        ]);
        SparePartOrder::factory()->ordered()->create([
            'order_number' => null,
        ]);

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

        $response->assertStatus(200);
        $response->assertViewHas('order_numbers', function ($orderNumbers) {
            return $orderNumbers->values()->all() === ['SP-BULK-001', 'SP-BULK-002'];
        });
    }

    // ==================== Show ====================

    public function test_admin_can_view_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->actingAs($this->adminUser)
            ->get(route('spare_part_orders.show', $sparePartOrder));

        $response->assertStatus(200);
        $response->assertViewIs('spare_part_orders.edit');
    }

    public function test_manager_can_view_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->actingAs($this->managerUser)
            ->get(route('spare_part_orders.show', $sparePartOrder));

        $response->assertStatus(200);
        $response->assertViewIs('spare_part_orders.edit');
    }

    public function test_spare_part_order_show_uses_nav_context_back_url(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $indexResponse = $this->actingAs($this->adminUser)
            ->get(route('spare_part_orders.index', [
                'spare_part_id' => $sparePartOrder->spare_part_id,
            ]));

        $nav = $indexResponse->viewData('nav');

        $response = $this->actingAs($this->adminUser)
            ->get(route('spare_part_orders.show', [
                'sparePartOrder' => $sparePartOrder,
                'nav' => $nav,
            ]));

        $response->assertOk();
        $response->assertViewHas('nav', $nav);
        $response->assertViewHas('back_url', function (string $backUrl) use ($sparePartOrder): bool {
            if (!str_starts_with($backUrl, route('spare_part_orders.index'))) {
                return false;
            }

            $query = parse_url($backUrl, PHP_URL_QUERY);
            parse_str((string) $query, $params);

            return (int) ($params['spare_part_id'] ?? 0) === (int) $sparePartOrder->spare_part_id;
        });
    }

    public function test_ordered_spare_part_order_page_renders_set_in_stock_button_with_separate_form(): void
    {
        $sparePartOrder = SparePartOrder::factory()->ordered()->create();

        $response = $this->actingAs($this->managerUser)
            ->get(route('spare_part_orders.show', $sparePartOrder));

        $response->assertStatus(200);
        $response->assertSee('form="set-in-stock-form"', false);
        $response->assertSee('id="set-in-stock-form"', false);
        $response->assertSee(route('spare_part_orders.set_in_stock', $sparePartOrder), false);
    }

    public function test_guest_cannot_view_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->get(route('spare_part_orders.show', $sparePartOrder));

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

    // ==================== Create ====================

    public function test_admin_can_access_create_form(): void
    {
        $response = $this->actingAs($this->adminUser)
            ->get(route('spare_part_orders.create'));

        $response->assertStatus(200);
        $response->assertViewIs('spare_part_orders.edit');
    }

    public function test_manager_can_access_create_form(): void
    {
        $response = $this->actingAs($this->managerUser)
            ->get(route('spare_part_orders.create'));

        $response->assertStatus(200);
        $response->assertViewIs('spare_part_orders.edit');
    }

    // ==================== Store ====================

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

        $response = $this->actingAs($this->adminUser)
            ->post(route('spare_part_orders.store'), [
                'spare_part_id' => $sparePart->id,
                'status' => SparePartOrder::STATUS_ORDERED,
                'ordered_quantity' => 10,
                'source_text' => 'Test Supplier',
            ]);

        $response->assertRedirect();
        $response->assertSessionHas('success');
        $this->assertDatabaseHas('spare_part_orders', [
            'spare_part_id' => $sparePart->id,
            'status' => SparePartOrder::STATUS_ORDERED,
            'ordered_quantity' => 10,
        ]);
    }

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

        $response = $this->actingAs($this->adminUser)
            ->withSession([
                'navigation' => [
                    'spare-part-order-nav-token' => [
                        'updated_at' => time(),
                        'stack' => [
                            route('spare_part_orders.index'),
                            route('spare_part_orders.create'),
                        ],
                    ],
                ],
            ])
            ->post(route('spare_part_orders.store'), [
                'nav' => 'spare-part-order-nav-token',
                'spare_part_id' => $sparePart->id,
                'status' => SparePartOrder::STATUS_ORDERED,
                'ordered_quantity' => 10,
                'source_text' => 'Test Supplier',
            ]);

        $response->assertRedirect(route('spare_part_orders.index'));
    }

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

        $response = $this->actingAs($this->managerUser)
            ->post(route('spare_part_orders.store'), [
                'spare_part_id' => $sparePart->id,
                'status' => SparePartOrder::STATUS_ORDERED,
                'ordered_quantity' => 5,
            ]);

        $response->assertRedirect();
        $response->assertSessionHas('success');
    }

    public function test_store_validates_required_spare_part_id(): void
    {
        $response = $this->actingAs($this->adminUser)
            ->post(route('spare_part_orders.store'), [
                'status' => SparePartOrder::STATUS_ORDERED,
                'ordered_quantity' => 10,
            ]);

        $response->assertSessionHasErrors('spare_part_id');
    }

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

        $response = $this->actingAs($this->adminUser)
            ->post(route('spare_part_orders.store'), [
                'spare_part_id' => $sparePart->id,
                'status' => SparePartOrder::STATUS_ORDERED,
            ]);

        $response->assertSessionHasErrors('ordered_quantity');
    }

    // ==================== Update ====================

    public function test_admin_can_update_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->ordered()->create();

        $response = $this->actingAs($this->adminUser)
            ->put(route('spare_part_orders.update', $sparePartOrder), [
                'spare_part_id' => $sparePartOrder->spare_part_id,
                'status' => SparePartOrder::STATUS_ORDERED,
                'ordered_quantity' => 20,
                'order_number' => 'ORD-2024-001',
            ]);

        $response->assertRedirect();
        $response->assertSessionHas('success');
        $this->assertDatabaseHas('spare_part_orders', [
            'id' => $sparePartOrder->id,
            'ordered_quantity' => 20,
            'order_number' => 'ORD-2024-001',
        ]);
    }

    public function test_update_spare_part_order_redirects_to_parent_url_from_nav_context(): void
    {
        $sparePartOrder = SparePartOrder::factory()->ordered()->create();

        $response = $this->actingAs($this->adminUser)
            ->withSession([
                'navigation' => [
                    'spare-part-order-update-token' => [
                        'updated_at' => time(),
                        'stack' => [
                            route('spare_part_orders.index'),
                            route('spare_part_orders.show', $sparePartOrder),
                        ],
                    ],
                ],
            ])
            ->put(route('spare_part_orders.update', $sparePartOrder), [
                'nav' => 'spare-part-order-update-token',
                'spare_part_id' => $sparePartOrder->spare_part_id,
                'status' => SparePartOrder::STATUS_ORDERED,
                'ordered_quantity' => 21,
            ]);

        $response->assertRedirect(route('spare_part_orders.index'));
    }

    public function test_manager_can_update_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->ordered()->create();

        $response = $this->actingAs($this->managerUser)
            ->put(route('spare_part_orders.update', $sparePartOrder), [
                'spare_part_id' => $sparePartOrder->spare_part_id,
                'status' => SparePartOrder::STATUS_ORDERED,
                'ordered_quantity' => 15,
            ]);

        $response->assertRedirect();
        $response->assertSessionHas('success');
    }

    public function test_guest_cannot_update_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->put(route('spare_part_orders.update', $sparePartOrder), []);

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

    // ==================== Destroy ====================

    public function test_admin_can_delete_spare_part_order_without_active_reservations(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->actingAs($this->adminUser)
            ->delete(route('spare_part_orders.destroy', $sparePartOrder));

        $response->assertRedirect(route('spare_part_orders.index'));
        $response->assertSessionHas('success');
        $this->assertSoftDeleted('spare_part_orders', ['id' => $sparePartOrder->id]);
    }

    public function test_admin_cannot_delete_spare_part_order_with_active_reservations(): void
    {
        $sparePartOrder = SparePartOrder::factory()->inStock()->create();
        Reservation::factory()->create([
            'spare_part_order_id' => $sparePartOrder->id,
            'spare_part_id' => $sparePartOrder->spare_part_id,
            'status' => Reservation::STATUS_ACTIVE,
        ]);

        $response = $this->actingAs($this->adminUser)
            ->delete(route('spare_part_orders.destroy', $sparePartOrder));

        $this->assertRedirectsToShowWithGeneratedNav($response, $sparePartOrder);
        $response->assertSessionHas('error');
        $this->assertDatabaseHas('spare_part_orders', ['id' => $sparePartOrder->id, 'deleted_at' => null]);
    }

    public function test_manager_cannot_delete_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->actingAs($this->managerUser)
            ->delete(route('spare_part_orders.destroy', $sparePartOrder));

        $response->assertStatus(403);
    }

    public function test_guest_cannot_delete_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->delete(route('spare_part_orders.destroy', $sparePartOrder));

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

    // ==================== SetInStock ====================

    public function test_admin_can_set_order_in_stock(): void
    {
        $sparePartOrder = SparePartOrder::factory()->ordered()->create();

        $response = $this->actingAs($this->adminUser)
            ->withSession([
                'navigation' => [
                    'set-in-stock-nav-token' => [
                        'updated_at' => time(),
                        'stack' => [
                            route('spare_part_orders.index'),
                            route('spare_part_orders.show', $sparePartOrder),
                        ],
                    ],
                ],
            ])
            ->post(route('spare_part_orders.set_in_stock', [
                'sparePartOrder' => $sparePartOrder,
                'nav' => 'set-in-stock-nav-token',
            ]));

        $response->assertRedirect(route('spare_part_orders.show', [
            'sparePartOrder' => $sparePartOrder,
            'nav' => 'set-in-stock-nav-token',
        ]));
        $response->assertSessionHas('success');
        $this->assertDatabaseHas('spare_part_orders', [
            'id' => $sparePartOrder->id,
            'status' => SparePartOrder::STATUS_IN_STOCK,
        ]);
    }

    public function test_manager_can_set_order_in_stock(): void
    {
        $sparePartOrder = SparePartOrder::factory()->ordered()->create();

        $response = $this->actingAs($this->managerUser)
            ->withSession([
                'navigation' => [
                    'set-in-stock-manager-token' => [
                        'updated_at' => time(),
                        'stack' => [
                            route('spare_part_orders.index'),
                            route('spare_part_orders.show', $sparePartOrder),
                        ],
                    ],
                ],
            ])
            ->post(route('spare_part_orders.set_in_stock', [
                'sparePartOrder' => $sparePartOrder,
                'nav' => 'set-in-stock-manager-token',
            ]));

        $response->assertRedirect(route('spare_part_orders.show', [
            'sparePartOrder' => $sparePartOrder,
            'nav' => 'set-in-stock-manager-token',
        ]));
        $response->assertSessionHas('success');
    }

    public function test_guest_cannot_set_order_in_stock(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->post(route('spare_part_orders.set_in_stock', $sparePartOrder));

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

    public function test_admin_can_set_whole_order_in_stock_by_order_number(): void
    {
        $first = SparePartOrder::factory()->ordered()->create([
            'order_number' => 'SP-BULK-100',
        ]);
        $second = SparePartOrder::factory()->ordered()->create([
            'order_number' => 'SP-BULK-100',
        ]);
        $sameNumberInStock = SparePartOrder::factory()->inStock()->create([
            'order_number' => 'SP-BULK-100',
        ]);
        $other = SparePartOrder::factory()->ordered()->create([
            'order_number' => 'SP-BULK-200',
        ]);

        $response = $this->actingAs($this->adminUser)
            ->post(route('spare_part_orders.set_order_in_stock'), [
                'bulk_order_number' => 'SP-BULK-100',
            ]);

        $response->assertRedirect(route('spare_part_orders.index'));
        $response->assertSessionHas('success');
        $this->assertDatabaseHas('spare_part_orders', [
            'id' => $first->id,
            'status' => SparePartOrder::STATUS_IN_STOCK,
        ]);
        $this->assertDatabaseHas('spare_part_orders', [
            'id' => $second->id,
            'status' => SparePartOrder::STATUS_IN_STOCK,
        ]);
        $this->assertDatabaseHas('spare_part_orders', [
            'id' => $sameNumberInStock->id,
            'status' => SparePartOrder::STATUS_IN_STOCK,
        ]);
        $this->assertDatabaseHas('spare_part_orders', [
            'id' => $other->id,
            'status' => SparePartOrder::STATUS_ORDERED,
        ]);
    }

    public function test_bulk_set_order_in_stock_validates_selected_number_has_ordered_rows(): void
    {
        SparePartOrder::factory()->inStock()->create([
            'order_number' => 'SP-NOT-ORDERED',
        ]);

        $response = $this->from(route('spare_part_orders.index'))
            ->actingAs($this->adminUser)
            ->post(route('spare_part_orders.set_order_in_stock'), [
                'bulk_order_number' => 'SP-NOT-ORDERED',
            ]);

        $response->assertRedirect(route('spare_part_orders.index'));
        $response->assertSessionHasErrors('bulk_order_number');
    }

    // ==================== Ship ====================

    public function test_admin_can_ship_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->inStock()->withQuantity(20)->create();

        $response = $this->actingAs($this->adminUser)
            ->post(route('spare_part_orders.ship', $sparePartOrder), [
                'quantity' => 5,
                'note' => 'Тестовая отгрузка',
            ]);

        $this->assertRedirectsToShowWithGeneratedNav($response, $sparePartOrder);
        $response->assertSessionHas('success');
        $this->assertDatabaseHas('spare_part_orders', [
            'id' => $sparePartOrder->id,
            'available_qty' => 15,
        ]);
    }

    public function test_ship_fails_if_quantity_exceeds_available(): void
    {
        $sparePartOrder = SparePartOrder::factory()->inStock()->withQuantity(3)->create();

        $response = $this->actingAs($this->adminUser)
            ->post(route('spare_part_orders.ship', $sparePartOrder), [
                'quantity' => 10,
                'note' => 'Попытка отгрузить больше чем есть',
            ]);

        $this->assertRedirectsToShowWithGeneratedNav($response, $sparePartOrder);
        $response->assertSessionHas('error');
        $this->assertDatabaseHas('spare_part_orders', [
            'id' => $sparePartOrder->id,
            'available_qty' => 3,
        ]);
    }

    public function test_ship_validates_required_quantity(): void
    {
        $sparePartOrder = SparePartOrder::factory()->inStock()->create();

        $response = $this->actingAs($this->adminUser)
            ->post(route('spare_part_orders.ship', $sparePartOrder), [
                'note' => 'Без количества',
            ]);

        $response->assertSessionHasErrors('quantity');
    }

    public function test_manager_can_ship_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->inStock()->withQuantity(10)->create();

        $response = $this->actingAs($this->managerUser)
            ->post(route('spare_part_orders.ship', $sparePartOrder), [
                'quantity' => 2,
                'note' => 'Отгрузка менеджером',
            ]);

        $this->assertRedirectsToShowWithGeneratedNav($response, $sparePartOrder);
        $response->assertSessionHas('success');
    }

    public function test_guest_cannot_ship_spare_part_order(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->post(route('spare_part_orders.ship', $sparePartOrder), [
            'quantity' => 1,
            'note' => 'Test',
        ]);

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

    // ==================== Correct (Inventory) ====================

    public function test_admin_can_correct_inventory(): void
    {
        $sparePartOrder = SparePartOrder::factory()->inStock()->withQuantity(10)->create();

        $response = $this->actingAs($this->adminUser)
            ->post(route('spare_part_orders.correct', $sparePartOrder), [
                'new_quantity' => 8,
                'reason' => 'Инвентаризация — обнаружена недостача',
            ]);

        $this->assertRedirectsToShowWithGeneratedNav($response, $sparePartOrder);
        $response->assertSessionHas('success');
        $this->assertDatabaseHas('spare_part_orders', [
            'id' => $sparePartOrder->id,
            'available_qty' => 8,
        ]);
    }

    public function test_correct_fails_if_quantity_unchanged(): void
    {
        $sparePartOrder = SparePartOrder::factory()->inStock()->withQuantity(10)->create();

        $response = $this->actingAs($this->adminUser)
            ->post(route('spare_part_orders.correct', $sparePartOrder), [
                'new_quantity' => 10,
                'reason' => 'Без изменений',
            ]);

        $this->assertRedirectsToShowWithGeneratedNav($response, $sparePartOrder);
        $response->assertSessionHas('error');
    }

    public function test_manager_cannot_correct_inventory(): void
    {
        $sparePartOrder = SparePartOrder::factory()->inStock()->create();

        $response = $this->actingAs($this->managerUser)
            ->post(route('spare_part_orders.correct', $sparePartOrder), [
                'new_quantity' => 5,
                'reason' => 'Test',
            ]);

        $response->assertStatus(403);
    }

    public function test_guest_cannot_correct_inventory(): void
    {
        $sparePartOrder = SparePartOrder::factory()->create();

        $response = $this->post(route('spare_part_orders.correct', $sparePartOrder), [
            'new_quantity' => 5,
            'reason' => 'Test',
        ]);

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