<?php

use App\Models\UserAbo;
use App\Models\UserSalesVolume;
use App\Services\Backoffice\BackofficeDashboardService;
use App\Services\Backoffice\BackofficeDrilldownService;
use App\User;
use Carbon\Carbon;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

uses(TestCase::class, RefreshDatabase::class);

beforeEach(function () {
    // September laeuft, August ist abgeschlossen.
    Carbon::setTestNow('2026-09-15 10:00:00');
});

afterEach(fn () => Carbon::setTestNow());

function freezeUser(?int $sponsor = null): User
{
    return User::forceCreate([
        'email' => 'freeze-'.uniqid('', true).'@example.test',
        'password' => bcrypt('secret'),
        'lang' => 'de',
        'm_level' => 1,
        'm_sponsor' => $sponsor,
        'active_date' => '2026-01-01',
        'partner_paid_at' => '2026-01-01',
        'payment_account' => '2027-01-01',
    ]);
}

function freezeVolume(User $user, float $points, int $month = 8): UserSalesVolume
{
    return UserSalesVolume::forceCreate([
        'user_id' => $user->id,
        'month' => $month,
        'year' => 2026,
        'date' => '2026-0'.$month.'-05',
        'points' => $points,
        'total_net' => $points,
        'status' => 1,
        'status_points' => 1,
        'status_turnover' => 1,
    ]);
}

function freezeAbo(User $member, string $isFor = 'ot', string $startDate = '2026-08-05'): UserAbo
{
    return UserAbo::create([
        'user_id' => $member->id,
        'member_id' => $member->id,
        'shopping_user_id' => 0,
        'email' => 'a-'.uniqid('', true).'@example.test',
        'is_for' => $isFor,
        'payone_userid' => 0,
        'clearingtype' => 'cc',
        'amount' => 5000,
        'active' => true,
        'status' => 2,
        'abo_interval' => 5,
        'start_date' => $startDate,
        'next_date' => '2026-10-05',
    ]);
}

it('haelt Punkte eines abgeschlossenen Monats nach einer spaeteren Korrektur fest', function () {
    $root = freezeUser();
    $anna = freezeUser($root->id);
    $volume = freezeVolume($anna, 100);

    app(BackofficeDashboardService::class)->storeSnapshot($root, 8, 2026);

    $volume->update(['points' => 500]);

    $overview = app(BackofficeDashboardService::class)->overview($root, 8, 2026);

    expect($overview['_meta']['source'])->toBe('snapshot')
        ->and((float) $overview['totals']['total_points'])->toBe(100.0);
});

it('haelt auch die Abo-Bestaende und Ranglisten fest', function () {
    $root = freezeUser();
    $anna = freezeUser($root->id);
    $abo = freezeAbo($anna);

    app(BackofficeDashboardService::class)->storeSnapshot($root, 8, 2026);

    // Kuendigung im September darf den August nicht mehr veraendern.
    $abo->update(['active' => false, 'status' => 4, 'cancel_date' => '2026-09-10']);

    $overview = app(BackofficeDashboardService::class)->overview($root, 8, 2026);

    expect((int) $overview['totals']['team_customer_abos'])->toBe(1);
});

it('laesst einen spaeter dazugekommenen Teampartner aus dem abgeschlossenen Monat heraus', function () {
    $root = freezeUser();
    $anna = freezeUser($root->id);
    freezeVolume($anna, 100);

    app(BackofficeDashboardService::class)->storeSnapshot($root, 8, 2026);

    // Neuer Teampartner im September, mit einer Buchung, die im August liegt
    // (z. B. nachtraeglich zugeordnet) — der abgeschlossene Monat bleibt unberuehrt.
    $spaeter = freezeUser($root->id);
    freezeVolume($spaeter, 999);
    app(BackofficeDashboardService::class)->flushLineBucketsMemo($root->id);

    $overview = app(BackofficeDashboardService::class)->overview($root, 8, 2026);
    $details = app(BackofficeDrilldownService::class)->details($root, 0, 'total_points', 8, 2026);

    expect((float) $overview['totals']['total_points'])->toBe(100.0)
        ->and($details['summary']['total_points'])->toBe(100.0)
        ->and($details['rows'])->toHaveCount(1)
        ->and($details['rows'][0]['user_id'])->toBe($anna->id);
});

it('zeigt in der Abo-Detailliste genau die eingefrorenen Abos', function () {
    $root = freezeUser();
    $anna = freezeUser($root->id);
    $abo = freezeAbo($anna);

    app(BackofficeDashboardService::class)->storeSnapshot($root, 8, 2026);

    $abo->update(['active' => false, 'status' => 4, 'cancel_date' => '2026-09-10']);
    $abo->delete();

    $details = app(BackofficeDrilldownService::class)->details($root, 0, 'team_customer_abos', 8, 2026);

    expect($details['summary']['abo_count'])->toBe(1);
});

it('haelt Kachel und verlinkte Liste der neuen Abos zusammen', function () {
    $root = freezeUser();
    $anna = freezeUser($root->id);
    $abo = freezeAbo($anna, 'ot', '2026-08-20'); // neu im August

    app(BackofficeDashboardService::class)->storeSnapshot($root, 8, 2026);

    $abo->update(['active' => false, 'status' => 4, 'cancel_date' => '2026-09-08']);

    $overview = app(BackofficeDashboardService::class)->overview($root, 8, 2026);
    $details = app(BackofficeDrilldownService::class)->details($root, 0, 'team_customer_abos', 8, 2026, true);

    expect((int) $overview['totals']['team_customer_abos_new'])->toBe(1)
        ->and($details['summary']['abo_count'])->toBe(1);
});

it('haelt Neupartner-Kachel und verlinkte Liste zusammen, auch nach spaeter nachgetragenem Zahlungsdatum (Audit F2)', function () {
    $root = freezeUser();
    // Registriert und bezahlt im August: Neupartner August.
    $anna = User::forceCreate([
        'email' => 'freeze-anna-'.uniqid('', true).'@example.test', 'password' => bcrypt('secret'), 'lang' => 'de',
        'm_level' => 1, 'm_sponsor' => $root->id, 'active_date' => '2026-08-28', 'partner_paid_at' => '2026-08-28', 'payment_account' => '2027-08-28',
    ]);

    app(BackofficeDashboardService::class)->storeSnapshot($root, 8, 2026);

    // Nachtraeglich korrigiert: Zahlung war erst im September.
    User::whereKey($anna->id)->toBase()->update(['partner_paid_at' => '2026-09-01 06:49:00']);

    $overview = app(BackofficeDashboardService::class)->overview($root, 8, 2026);
    $details = app(BackofficeDrilldownService::class)->details($root, 0, 'new_partners', 8, 2026);

    expect((int) $overview['totals']['new_partners'])->toBe(1)
        ->and($details['rows'])->toHaveCount(1)
        ->and($details['rows'][0]['user_id'])->toBe($anna->id);
});

it('rechnet fuer Snapshots ohne Neupartner-IDs mit der damaligen Regel (Registrierungsmonat)', function () {
    $root = freezeUser();
    // Vor dem 16.09. gezaehlt: registriert im August, bezahlt erst im September.
    $anna = User::forceCreate([
        'email' => 'freeze-anna-'.uniqid('', true).'@example.test', 'password' => bcrypt('secret'), 'lang' => 'de',
        'm_level' => 1, 'm_sponsor' => $root->id, 'active_date' => '2026-08-28', 'partner_paid_at' => '2026-09-01 06:49:00', 'payment_account' => '2027-09-01',
    ]);

    $snapshot = app(BackofficeDashboardService::class)->storeSnapshot($root, 8, 2026);

    // Alten Snapshot nachstellen: Kachel nach alter Regel = 1, keine gespeicherten IDs.
    $payload = $snapshot->payload;
    foreach ($payload['lines'] as &$line) {
        unset($line['new_partner_ids']);
        $line['new_partners'] = 1;
    }
    unset($line);
    $payload['totals']['new_partners'] = 1;
    $snapshot->update(['payload' => $payload]);

    $overview = app(BackofficeDashboardService::class)->overview($root, 8, 2026);
    $details = app(BackofficeDrilldownService::class)->details($root, 0, 'new_partners', 8, 2026);

    expect((int) $overview['totals']['new_partners'])->toBe(1)
        ->and($details['rows'])->toHaveCount(1)
        ->and($details['rows'][0]['user_id'])->toBe($anna->id);
});

it('rechnet den laufenden Monat weiterhin live', function () {
    $root = freezeUser();
    $anna = freezeUser($root->id);
    $volume = freezeVolume($anna, 100, 9);

    $volume->update(['points' => 500]);

    $overview = app(BackofficeDashboardService::class)->overview($root, 9, 2026);

    expect($overview['_meta']['source'])->toBe('live')
        ->and((float) $overview['totals']['total_points'])->toBe(500.0);
});