mivita/app/Services/Incentive/IncentivePayoutService.php

<?php

namespace App\Services\Incentive;

use App\Models\Incentive;
use App\Models\IncentiveParticipant;
use Illuminate\Support\Collection;

/**
 * Geldpraemie eines Incentives (Recruiting-Challenge, Entwicklungsplan E1).
 *
 * Praemie = Anzahl Neupartner mit Starterpaket x Betrag je Neupartner, dazu der
 * Rang-Bonus, wenn der Teilnehmer qualifiziert ist und innerhalb der Gewinnerplaetze
 * liegt. Grundlage ist der gespeicherte Stand des Teilnehmers (qualified_partners, rank),
 * also derselbe Stand wie in der Rangliste.
 *
 * Gerechnet wird fuer alle Teilnehmer; ausgezahlt wird nur an Teilnehmer mit bestaetigter
 * Teilnahme (Kundenentscheid 25.09.2026). Unbestaetigte haben keinen Rang, also keinen Bonus.
 */
class IncentivePayoutService
{
    /**
     * @return array{partners: int, per_partner: float, partner_amount: float, rank_bonus: float, total: float, confirmed: bool}
     */
    public function forParticipant(Incentive $incentive, IncentiveParticipant $participant): array
    {
        $partners = (int) $participant->qualified_partners;
        $perPartner = (float) $incentive->amount_per_partner;
        $partnerAmount = round($partners * $perPartner, 2);
        $rankBonus = $participant->is_qualified ? $incentive->rankBonus($participant->rank) : 0.0;

        return [
            'partners' => $partners,
            'per_partner' => $perPartner,
            'partner_amount' => $partnerAmount,
            'rank_bonus' => $rankBonus,
            'total' => round($partnerAmount + $rankBonus, 2),
            'confirmed' => $participant->accepted_terms_at !== null,
        ];
    }

    /**
     * Auszahlungszeilen: Teilnehmer mit bestaetigter Teilnahme und Praemie > 0, nach Rang.
     *
     * @return Collection<int, array{participant: IncentiveParticipant, payout: array{partners: int, per_partner: float, partner_amount: float, rank_bonus: float, total: float, confirmed: bool}}>
     */
    public function rows(Incentive $incentive): Collection
    {
        return IncentiveParticipant::query()
            ->where('incentive_id', $incentive->id)
            ->with('user', 'user.account')
            ->orderByRankNullsLast()
            ->orderByDesc('qualified_partners')
            ->get()
            ->map(fn (IncentiveParticipant $participant) => [
                'participant' => $participant,
                'payout' => $this->forParticipant($incentive, $participant),
            ])
            ->filter(fn (array $row) => $row['payout']['confirmed'] && $row['payout']['total'] > 0)
            ->values();
    }

    /**
     * Summen ueber alle Auszahlungszeilen.
     *
     * @param  Collection<int, array{participant: IncentiveParticipant, payout: array{partners: int, per_partner: float, partner_amount: float, rank_bonus: float, total: float, confirmed: bool}}>  $rows
     * @return array{recipients: int, partners: int, partner_amount: float, rank_bonus: float, total: float}
     */
    public function totals(Collection $rows): array
    {
        return [
            'recipients' => $rows->count(),
            'partners' => (int) $rows->sum(fn (array $row) => $row['payout']['partners']),
            'partner_amount' => round((float) $rows->sum(fn (array $row) => $row['payout']['partner_amount']), 2),
            'rank_bonus' => round((float) $rows->sum(fn (array $row) => $row['payout']['rank_bonus']), 2),
            'total' => round((float) $rows->sum(fn (array $row) => $row['payout']['total']), 2),
        ];
    }

    /**
     * Spaltenueberschriften des XLSX-Exports.
     *
     * @return list<string>
     */
    public function exportHeaders(): array
    {
        return [
            __('incentive.rank'),
            __('incentive.export_user_id'),
            __('incentive.consultant'),
            'E-Mail',
            __('incentive.admin_terms_accepted'),
            __('incentive.partners'),
            __('incentive.amount_per_partner'),
            __('incentive.payout_partner_amount'),
            __('incentive.payout_rank_bonus'),
            __('incentive.payout_total'),
            __('incentive.total_points'),
            __('incentive.qualified'),
        ];
    }

    /**
     * Zeilen des XLSX-Exports (Betraege als Zahlen, damit Excel summieren kann).
     *
     * @return list<array<int, string|int|float>>
     */
    public function exportRows(Incentive $incentive): array
    {
        return $this->rows($incentive)->map(function (array $row) {
            $participant = $row['participant'];
            $payout = $row['payout'];
            $user = $participant->user;
            $name = $user?->account
                ? trim($user->account->first_name.' '.$user->account->last_name)
                : ($user?->getFullName() ?: '');

            return [
                $participant->rank ?? '',
                (int) $participant->user_id,
                $name,
                (string) ($user?->email ?? ''),
                $participant->accepted_terms_at
                    ? $participant->accepted_terms_at->format('d.m.Y H:i')
                    : __('incentive.admin_terms_pending'),
                $payout['partners'],
                $payout['per_partner'],
                $payout['partner_amount'],
                $payout['rank_bonus'],
                $payout['total'],
                (int) $participant->total_points,
                $participant->is_qualified ? __('incentive.yes') : __('incentive.no'),
            ];
        })->all();
    }

    public static function formatAmount(float $amount): string
    {
        return number_format($amount, 2, ',', '.').' €';
    }
}