<?php

namespace App\Services\Payment\Payone;

use InvalidArgumentException;

class PaymentMethodResolver
{
    /**
     * Resolves a payment method string into PAYONE method parameters.
     *
     * Supported formats:
     *   Simple:   'cc' | 'elv' | 'vor'
     *   Compound: 'wlt#PPE' | 'wlt#PDT' | 'sb#GPY' | 'sb#PNT' | 'fnc#MIV'
     *
     * @param  array<string, mixed>  $context  Extra data required for specific methods (e.g. cc.pseudocardpan, elv.iban).
     *
     * @throws InvalidArgumentException for unknown method strings.
     */
    public static function resolve(string $paymentMethod, array $context = []): PayoneMethodConfig
    {
        if (str_contains($paymentMethod, '#')) {
            [$type, $subtype] = explode('#', $paymentMethod, 2);

            return match ($type) {
                'wlt' => new PayoneMethodConfig([
                    'clearingtype' => 'wlt',
                    'wallettype' => $subtype,
                    'onlinebanktransfertype' => '',
                    'request' => 'authorization',
                ]),
                'sb' => new PayoneMethodConfig([
                    'clearingtype' => 'sb',
                    'wallettype' => '',
                    'onlinebanktransfertype' => $subtype,
                    'bankcountry' => 'DE',
                    'request' => 'authorization',
                ]),
                'fnc' => match ($subtype) {
                    'MIV' => new PayoneMethodConfig([
                        'clearingtype' => 'fnc',
                        'wallettype' => '',
                        'onlinebanktransfertype' => 'MIV',
                        'request' => 'authorization',
                    ]),
                    default => throw new InvalidArgumentException("Unknown fnc subtype: {$subtype}"),
                },
                default => throw new InvalidArgumentException("Unknown compound payment method type: {$type}"),
            };
        }

        return match ($paymentMethod) {
            'cc' => new PayoneMethodConfig([
                'clearingtype' => 'cc',
                'wallettype' => '',
                'onlinebanktransfertype' => '',
                'request' => 'authorization',
                'pseudocardpan' => $context['cc']['pseudocardpan'] ?? '',
            ]),
            'elv' => new PayoneMethodConfig([
                'clearingtype' => 'elv',
                'wallettype' => '',
                'onlinebanktransfertype' => '',
                'request' => 'authorization',
                'mandate_identification' => $context['elv']['mandate_identification'] ?? '',
                'iban' => $context['elv']['iban'] ?? '',
                'bic' => $context['elv']['bic'] ?? '',
                'bankaccountholder' => $context['elv']['bankaccountholder'] ?? '',
            ]),
            'vor' => new PayoneMethodConfig([
                'clearingtype' => 'vor',
                'wallettype' => '',
                'onlinebanktransfertype' => '',
                'request' => 'authorization',
            ]),
            default => throw new InvalidArgumentException("Unknown payment method: {$paymentMethod}"),
        };
    }
}