<?php

namespace Tests\Feature;

use App\Models\Dictionary\Area;
use App\Models\Dictionary\District;
use App\Models\Role;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Storage;
use Tests\TestCase;

class AdminDistrictControllerTest 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]);
    }

    // ==================== Authentication & Authorization ====================

    public function test_guest_cannot_access_districts_index(): void
    {
        $response = $this->get(route('admin.district.index'));

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

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

        $response->assertStatus(403);
    }

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

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

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

    public function test_districts_index_displays_districts(): void
    {
        $district = District::factory()->create(['name' => 'Тестовый округ']);

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

        $response->assertStatus(200);
        $response->assertSee('Тестовый округ');
    }

    public function test_districts_index_displays_areas_count(): void
    {
        $district = District::factory()->create();
        Area::factory()->count(3)->create(['district_id' => $district->id]);

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

        $response->assertStatus(200);
        $response->assertSee('3');
    }

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

    public function test_admin_can_view_district_edit_form(): void
    {
        $district = District::factory()->create();

        $response = $this->actingAs($this->adminUser)
            ->get(route('admin.district.show', $district->id));

        $response->assertStatus(200);
        $response->assertViewIs('admin.districts.edit');
        $response->assertSee($district->name);
    }

    public function test_manager_cannot_view_district_edit_form(): void
    {
        $district = District::factory()->create();

        $response = $this->actingAs($this->managerUser)
            ->get(route('admin.district.show', $district->id));

        $response->assertStatus(403);
    }

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

    public function test_admin_can_create_new_district(): void
    {
        $response = $this->actingAs($this->adminUser)
            ->post(route('admin.district.store'), [
                'shortname' => 'ТСТ',
                'name' => 'Тестовый округ',
            ]);

        $response->assertRedirect(route('admin.district.index'));
        $this->assertDatabaseHas('districts', [
            'shortname' => 'ТСТ',
            'name' => 'Тестовый округ',
        ]);
    }

    public function test_admin_can_update_existing_district(): void
    {
        $district = District::factory()->create([
            'shortname' => 'СТР',
            'name' => 'Старое название',
        ]);

        $response = $this->actingAs($this->adminUser)
            ->post(route('admin.district.store'), [
                'id' => $district->id,
                'shortname' => 'НВ',
                'name' => 'Новое название',
            ]);

        $response->assertRedirect(route('admin.district.index'));
        $this->assertDatabaseHas('districts', [
            'id' => $district->id,
            'shortname' => 'НВ',
            'name' => 'Новое название',
        ]);
    }

    public function test_store_district_requires_name(): void
    {
        $response = $this->actingAs($this->adminUser)
            ->post(route('admin.district.store'), [
                'shortname' => 'ТСТ',
            ]);

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

    public function test_store_district_requires_shortname(): void
    {
        $response = $this->actingAs($this->adminUser)
            ->post(route('admin.district.store'), [
                'name' => 'Тестовый округ',
            ]);

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

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

    public function test_admin_can_delete_district_without_areas(): void
    {
        $district = District::factory()->create();

        $response = $this->actingAs($this->adminUser)
            ->delete(route('admin.district.destroy', $district->id));

        $response->assertRedirect(route('admin.district.index'));
        $this->assertSoftDeleted('districts', ['id' => $district->id]);
    }

    public function test_admin_cannot_delete_district_with_areas(): void
    {
        $district = District::factory()->create();
        Area::factory()->create(['district_id' => $district->id]);

        $response = $this->actingAs($this->adminUser)
            ->delete(route('admin.district.destroy', $district->id));

        $response->assertRedirect(route('admin.district.index'));
        $response->assertSessionHas('error');
        $this->assertDatabaseHas('districts', ['id' => $district->id, 'deleted_at' => null]);
    }

    // ==================== Undelete ====================

    public function test_admin_can_restore_deleted_district(): void
    {
        $district = District::factory()->create();
        $district->delete();

        $response = $this->actingAs($this->adminUser)
            ->post(route('admin.district.undelete', $district->id));

        $response->assertRedirect(route('admin.district.index'));
        $this->assertDatabaseHas('districts', [
            'id' => $district->id,
            'deleted_at' => null,
        ]);
    }

    // ==================== Export ====================

    public function test_admin_can_export_districts(): void
    {
        District::factory()->count(3)->create();

        $response = $this->actingAs($this->adminUser)
            ->post(route('admin.district.export'));

        $response->assertRedirect();
    }

    // ==================== Import ====================

    public function test_admin_can_import_districts(): void
    {
        Storage::fake('upload');

        // Создаем тестовый XLSX файл
        $file = $this->createTestDistrictsXlsx();

        $response = $this->actingAs($this->adminUser)
            ->post(route('admin.district.import'), [
                'import_file' => $file,
            ]);

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

    public function test_import_requires_file(): void
    {
        $response = $this->actingAs($this->adminUser)
            ->post(route('admin.district.import'), []);

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

    public function test_import_requires_xlsx_file(): void
    {
        $file = UploadedFile::fake()->create('test.txt', 100, 'text/plain');

        $response = $this->actingAs($this->adminUser)
            ->post(route('admin.district.import'), [
                'import_file' => $file,
            ]);

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

    // ==================== Helper Methods ====================

    private function createTestDistrictsXlsx(): UploadedFile
    {
        $spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();

        $sheet->setCellValue('A1', 'ID');
        $sheet->setCellValue('B1', 'Сокращение');
        $sheet->setCellValue('C1', 'Название');

        $sheet->setCellValue('A2', '');
        $sheet->setCellValue('B2', 'ТСТ');
        $sheet->setCellValue('C2', 'Тестовый округ');

        $tempPath = sys_get_temp_dir() . '/test_districts_' . uniqid() . '.xlsx';
        $writer = new \PhpOffice\PhpSpreadsheet\Writer\Xlsx($spreadsheet);
        $writer->save($tempPath);

        return new UploadedFile(
            $tempPath,
            'test_districts.xlsx',
            'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
            null,
            true
        );
    }
}