<?php

declare(strict_types=1);

namespace Tests\Feature\Api\Admin\IpPool;

use App\Models\IpPool;
use App\Models\ModuleIpAddress;
use App\Models\ModuleNetwork;
use App\Models\User;
use App\Services\IpPool\IpPoolSheetImporter;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Http\UploadedFile;
use PhpOffice\PhpSpreadsheet\Shared\Date as ExcelDate;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
use Spatie\Permission\Models\Permission;
use Spatie\Permission\Models\Role;
use Tests\TestCase;

class IpPoolSheetImportTest extends TestCase
{
    use RefreshDatabase;

    private const HEADER = [
        'TEN_MANG', 'CIDR', 'OWNER_TYPE', 'IP_ADDRESS', 'IP_ROLE', 'PARENT_IP', 'SUBNET_MASK', 'GATEWAY',
        'TEN_KHACH_HANG', 'TEN_DICH_VU', 'NGAY_CAP_PHAT', 'NGAY_THU_HOI', 'TRANG_THAI', 'CONTACT_EMAIL',
        'CONTACT_CC', 'CONTACT_PHONE', 'MONTHLY_COST', 'SELLING_PRICE', 'THONG_TIN_BO_SUNG',
        'LAST_EMAIL_TYPE', 'LAST_EMAIL_AT', 'UPDATED_AT', 'UPDATED_BY', 'GHI_CHU', 'NOTE',
    ];

    private function admin(): User
    {
        $role = Role::create(['name' => 'role-' . uniqid(), 'guard_name' => 'admin']);
        $role->givePermissionTo(Permission::firstOrCreate(['name' => 'module-vcenter.manager', 'guard_name' => 'admin']));
        $admin = User::factory()->create();
        $admin->assignRole($role);

        return $admin;
    }

    private function row(array $values): array
    {
        return array_map(fn ($header) => $values[$header] ?? null, self::HEADER);
    }

    private function xlsx(array $rows): UploadedFile
    {
        $spreadsheet = new Spreadsheet();
        $spreadsheet->getActiveSheet()->setTitle('CONFIG');
        $sheet = $spreadsheet->createSheet()->setTitle('IP_POOL');
        $sheet->fromArray([self::HEADER, ...$rows]);
        $sheet->setCellValue('Y2', '=XLOOKUP(D2,CONFIG!A:A,CONFIG!B:B)');

        $path = tempnam(sys_get_temp_dir(), 'ip') . '.xlsx';
        (new Xlsx($spreadsheet))->setPreCalculateFormulas(false)->save($path);

        return new UploadedFile($path, 'ip.xlsx', null, null, true);
    }

    public function test_status_follows_sheet_unless_the_system_owns_the_ip(): void
    {
        $this->assertSame('assigned', IpPoolSheetImporter::resolveStatus(null, false, 'ALLOCATED'));
        $this->assertSame('assigned', IpPoolSheetImporter::resolveStatus('free', false, 'ALLOCATED'));
        $this->assertSame('free', IpPoolSheetImporter::resolveStatus('assigned', false, 'FREE'));
        $this->assertSame('assigned', IpPoolSheetImporter::resolveStatus('assigned', true, 'FREE'));
        $this->assertSame('reserved', IpPoolSheetImporter::resolveStatus('reserved', true, 'ALLOCATED'));
        $this->assertSame('free', IpPoolSheetImporter::resolveStatus(null, false, null));
    }

    public function test_preview_reports_changes_without_writing_and_import_applies_them(): void
    {
        $network = ModuleNetwork::create(['name' => 'VM Network 56']);
        IpPool::create([
            'ip_address' => '10.0.0.5', 'module_network_id' => $network->id, 'cidr' => 24,
            'gateway' => '10.0.0.1', 'status' => 'free',
        ]);
        IpPool::create([
            'ip_address' => '10.0.0.6', 'module_network_id' => $network->id, 'cidr' => 24, 'status' => 'free',
        ]);
        ModuleIpAddress::create(['ip' => '10.0.0.6', 'module_network_id' => $network->id, 'status' => 1]);

        $file = $this->xlsx([
            $this->row([
                'TEN_MANG' => "THEGIOISO-VN\t\t", 'CIDR' => '/22', 'OWNER_TYPE' => 'thế giới số',
                'IP_ADDRESS' => '10.0.0.5', 'TEN_KHACH_HANG' => 'Khách A', 'TRANG_THAI' => 'ALLOCATED',
                'NGAY_CAP_PHAT' => ExcelDate::PHPToExcel(new \DateTime('2026-04-15')),
                'CONTACT_EMAIL' => "\ta@example.com; b@example.com", 'CONTACT_PHONE' => 835123959,
                'MONTHLY_COST' => 60000,
            ]),
            $this->row(['TEN_MANG' => 'THEGIOISO-VN', 'IP_ADDRESS' => '10.0.0.6', 'TRANG_THAI' => 'FREE']),
            $this->row(['TEN_MANG' => 'HOITUSO-VN', 'IP_ADDRESS' => '10.0.1.9', 'TRANG_THAI' => 'ALLOCATED']),
            $this->row(['CONTACT_CC' => 'kythuat@tgs.com.vn']),
            $this->row(['TEN_MANG' => 'HOITUSO-VN', 'IP_ADDRESS' => '10.0.1.10', 'CONTACT_EMAIL' => 'not-an-email']),
        ]);

        $admin = $this->admin();

        $this->actingAs($admin, 'admin')
            ->post('/api/v1/administrator/ip-pool/import/preview', ['file' => $file], ['Accept' => 'application/json'])
            ->assertOk()
            ->assertJsonPath('data.valid', 3)
            ->assertJsonPath('data.skipped_blank', 1)
            ->assertJsonPath('data.error_count', 1)
            ->assertJsonPath('data.errors.0.row', 6)
            ->assertJsonPath('data.create', 1)
            ->assertJsonPath('data.update', 2)
            ->assertJsonPath('data.to_assigned', 2)
            ->assertJsonPath('data.kept_by_system', 1);

        $this->assertSame(2, IpPool::count());

        $this->actingAs($admin, 'admin')
            ->post('/api/v1/administrator/ip-pool/import', ['file' => $file], ['Accept' => 'application/json'])
            ->assertOk();

        $updated = IpPool::where('ip_address', '10.0.0.5')->sole();
        $this->assertSame($network->id, $updated->module_network_id);
        $this->assertSame('assigned', $updated->status);
        $this->assertSame('THEGIOISO-VN', $updated->ip_block);
        $this->assertSame('THẾ GIỚI SỐ', $updated->owner_type);
        $this->assertSame(22, $updated->cidr);
        $this->assertSame('10.0.0.1', $updated->gateway);
        $this->assertSame('a@example.com, b@example.com', $updated->contact_email);
        $this->assertSame('0835123959', $updated->contact_phone);
        $this->assertSame('2026-04-15', $updated->allocated_at->toDateString());
        $this->assertSame('60000.00', $updated->monthly_cost);

        $this->assertSame('free', IpPool::where('ip_address', '10.0.0.6')->value('status'));

        $created = IpPool::where('ip_address', '10.0.1.9')->sole();
        $this->assertNull($created->module_network_id);
        $this->assertSame('assigned', $created->status);
        $this->assertFalse(IpPool::where('ip_address', '10.0.1.10')->exists());
    }
}