mivita/app/Services/Team/AnnualFeeDueService.php

<?php

namespace App\Services\Team;

use App\Services\Backoffice\BackofficeDashboardService;
use App\User;
use Carbon\Carbon;

/**
 * Jahresgebühr-Nachfassliste für den Team-Bereich (alle Berater, eigenes Team).
 *
 * Sammelt alle Teampartner der Downline, deren Account-Gültigkeit
 * (`users.payment_account` = „bezahlt bis") überfällig ist oder innerhalb der
 * nächsten drei Monate abläuft — gruppiert nach Dringlichkeit (überfällig zuerst,
 * dann fällig in ≤ 1 / ≤ 2 / ≤ 3 Monaten). User ohne `payment_account` werden
 * übersprungen. Wiederverwendet die Linien-Logik aus
 * {@see BackofficeDashboardService} (keine Duplizierung der Baum-Traversierung).
 */
class AnnualFeeDueService
{
    public const GROUP_OVERDUE = 'overdue';

    public const GROUP_DUE_1_MONTH = 'due_1_month';

    public const GROUP_DUE_2_MONTHS = 'due_2_months';

    public const GROUP_DUE_3_MONTHS = 'due_3_months';

    /**
     * @var list<string> Gruppen in Anzeige-Reihenfolge (dringlichste zuerst)
     */
    public const GROUP_ORDER = [
        self::GROUP_OVERDUE,
        self::GROUP_DUE_1_MONTH,
        self::GROUP_DUE_2_MONTHS,
        self::GROUP_DUE_3_MONTHS,
    ];

    public function __construct(private BackofficeDashboardService $dashboardService) {}

    /**
     * Liefert die Teampartner mit (bald) fälliger Jahresgebühr, gruppiert nach
     * Dringlichkeit und innerhalb jeder Gruppe nach Fälligkeitsdatum aufsteigend.
     *
     * @return array<string, list<array{
     *     user_id: int,
     *     first_name: string,
     *     last_name: string,
     *     email: string,
     *     phone: string,
     *     mobil: string,
     *     line: int,
     *     level_name: string,
     *     due_date: Carbon
     * }>>
     */
    public function dueGroups(int $rootUserId, ?Carbon $reference = null): array
    {
        $now = ($reference ?? now())->copy();

        $groups = array_fill_keys(self::GROUP_ORDER, []);

        foreach ($this->dashboardService->lineBuckets($rootUserId) as $line => $users) {
            foreach ($users as $user) {
                if (! $user->payment_account) {
                    continue;
                }

                $dueDate = Carbon::parse($user->payment_account);
                $groupKey = $this->groupKeyFor($dueDate, $now);

                if ($groupKey === null) {
                    continue;
                }

                $groups[$groupKey][] = $this->buildRow($user, (int) $line, $dueDate);
            }
        }

        foreach ($groups as $groupKey => $rows) {
            usort($rows, fn (array $a, array $b): int => $a['due_date'] <=> $b['due_date']);
            $groups[$groupKey] = $rows;
        }

        return $groups;
    }

    private function groupKeyFor(Carbon $dueDate, Carbon $now): ?string
    {
        return match (true) {
            $dueDate->lte($now) => self::GROUP_OVERDUE,
            $dueDate->lte($now->copy()->addMonth()) => self::GROUP_DUE_1_MONTH,
            $dueDate->lte($now->copy()->addMonths(2)) => self::GROUP_DUE_2_MONTHS,
            $dueDate->lte($now->copy()->addMonths(3)) => self::GROUP_DUE_3_MONTHS,
            default => null,
        };
    }

    /**
     * @return array{
     *     user_id: int,
     *     first_name: string,
     *     last_name: string,
     *     email: string,
     *     phone: string,
     *     mobil: string,
     *     line: int,
     *     level_name: string,
     *     due_date: Carbon
     * }
     */
    private function buildRow(User $user, int $line, Carbon $dueDate): array
    {
        return [
            'user_id' => (int) $user->id,
            'first_name' => (string) ($user->account->first_name ?? ''),
            'last_name' => (string) ($user->account->last_name ?? ''),
            'email' => (string) $user->email,
            'phone' => (string) ($user->account->phone ?? ''),
            'mobil' => (string) ($user->account->mobil ?? ''),
            'line' => $line,
            'level_name' => (string) ($user->user_level?->getLang('name') ?? ''),
            'due_date' => $dueDate,
        ];
    }
}