<?php

use App\Enums\InvoiceStatus;
use App\Enums\UserPaymentOptionStatus;
use App\Models\Invoice;
use App\Models\InvoiceBillingAddress;
use App\Models\PaymentOption;
use App\Models\User;
use App\Models\UserPaymentOption;
use App\Services\Billing\ManualInvoicePdfRenderer;
use Database\Seeders\RolesAndPermissionsSeeder;
use Tests\TestCase;

beforeEach(function (): void {
    /** @var TestCase $this */
    $this->seed(RolesAndPermissionsSeeder::class);
});

function manualPdfInvoice(array $overrides = []): Invoice
{
    $user = User::factory()->create();
    $agreement = UserPaymentOption::factory()->create([
        'user_id' => $user->id,
        'payment_option_id' => PaymentOption::factory()->create(['interval' => 'yearly'])->id,
        'status' => UserPaymentOptionStatus::Grandfathered->value,
        'stripe_subscription_id' => null,
        'current_period_start' => '2026-08-07',
        'current_period_end' => '2027-08-07',
        'legacy_conditions' => ['name' => 'Unbegrenzte PMs', 'legacy_portal' => 'businessportal24', 'interval' => 'yearly', 'net_cents' => 16723],
    ]);

    return Invoice::factory()->create([
        'user_id' => $user->id,
        'user_payment_id' => null,
        'user_payment_option_id' => $agreement->id,
        'invoice_billing_address_id' => InvoiceBillingAddress::factory()->create([
            'company' => 'Muster GmbH',
            'name' => 'Erika Muster',
            'salutation_key' => 'mrs',
            'address1' => 'Beispielweg 1',
            'postal_code' => '33739',
            'city' => 'Bielefeld',
            'country_code' => 'DE',
            'vat_id' => 'DE123456789',
        ])->id,
        'number' => 'MAN-00042',
        'status' => InvoiceStatus::Open->value,
        'amount_cents' => 16723,
        'tax_cents' => 3177,
        'total_cents' => 19900,
        'is_netto' => false,
        'tax_note' => null,
        'invoice_date' => '2026-09-16',
        'due_date' => '2026-09-30',
        'stripe_invoice_id' => null,
        'replaces_legacy_invoice_number' => '42489-10',
        ...$overrides,
    ]);
}

/**
 * Textläufe aus dem PDF-Stream (nur zum Prüfen des Inhalts).
 */
function pdfTextRuns(string $pdf): string
{
    preg_match_all('/\((.*?)\) Tj/', $pdf, $matches);

    return implode("\n", array_map(fn (string $run): string => mb_convert_encoding($run, 'UTF-8', 'Windows-1252'), $matches[1]));
}

test('the MAN invoice pdf carries issuer, recipient, service period, amounts, due date and bank details', function () {
    $invoice = manualPdfInvoice();

    $pdf = app(ManualInvoicePdfRenderer::class)->render($invoice);
    $text = pdfTextRuns($pdf);

    expect($pdf)->toStartWith('%PDF-1.4');
    expect($text)
        ->toContain('adametz.media')
        ->toContain('Muster GmbH')
        ->toContain('Frau Erika Muster')
        ->toContain('USt-ID: DE123456789')
        ->toContain('Unbegrenzte PMs auf Businessportal24')
        ->toContain('Leistungszeitraum: 07.08.2026 - 06.08.2027')
        ->toContain('Rechnungsnummer: MAN-00042')
        ->toContain('Ersetzt die Rechnung Nr. 42489-10')
        ->toContain('167,23')
        ->toContain('MwSt. 19%:')
        ->toContain('199,00')
        ->toContain('bis zum 30.09.2026')
        ->toContain('IBAN: DE96 4805 0161 0065 0356 02')
        ->toContain('Rechnungsnummer MAN-00042');
});

test('a tax exempt invoice omits the VAT row and prints the tax note', function () {
    $invoice = manualPdfInvoice([
        'tax_cents' => 0,
        'total_cents' => 16723,
        'is_netto' => true,
        'tax_note' => 'Steuerschuldnerschaft des Leistungsempfängers (Reverse Charge, Art. 196 MwStSystRL).',
    ]);

    $text = pdfTextRuns(app(ManualInvoicePdfRenderer::class)->render($invoice));

    expect($text)->not->toContain('MwSt.')
        ->toContain('Reverse Charge');
});

test('the customer downloads the own MAN pdf, not foreign or stripe invoices', function () {
    /** @var TestCase $this */
    $invoice = manualPdfInvoice();
    $invoice->user->assignRole('customer');
    $stranger = User::factory()->create(['is_active' => true]);
    $stranger->assignRole('customer');

    $this->actingAs($invoice->user)
        ->get(route('me.invoices.manual-pdf', $invoice))
        ->assertOk()
        ->assertHeader('Content-Type', 'application/pdf');

    $this->actingAs($stranger)
        ->get(route('me.invoices.manual-pdf', $invoice))
        ->assertForbidden();

    $stripeInvoice = manualPdfInvoice(['stripe_invoice_id' => 'in_test_123', 'number' => 'STR-00001']);
    $stripeInvoice->user->assignRole('customer');
    $this->actingAs($stripeInvoice->user)
        ->get(route('me.invoices.manual-pdf', $stripeInvoice))
        ->assertNotFound();
});

test('billing admins download any MAN pdf via the admin route', function () {
    /** @var TestCase $this */
    $invoice = manualPdfInvoice();
    $admin = User::factory()->create(['is_active' => true]);
    $admin->assignRole('admin');

    $this->actingAs($admin)
        ->get(route('admin.invoices.pdf', $invoice))
        ->assertOk()
        ->assertHeader('Content-Type', 'application/pdf');
});