<?php

class PaymentMethodMapper
{
    /**
     * =====================================================
     * MASTER MAPPING (WINPAY)
     * =====================================================
     */
    private static $map = [

        // ================= QRIS =================
        'qris' => [
            'type'     => 'qris',
            'channel'  => 'QRIS',
            'endpoint' => '/v1.0/qr/qr-mpm-generate'
        ],

        // ================= VA =================
        'va_bri' => ['type' => 'va', 'channel' => 'BRI'],
        'va_bni' => ['type' => 'va', 'channel' => 'BNI'],
        'va_bca' => ['type' => 'va', 'channel' => 'BCA'],
        'va_cimb' => ['type' => 'va', 'channel' => 'CIMB'],
        'va_mandiri' => ['type' => 'va', 'channel' => 'MANDIRI'],
        'va_permata' => ['type' => 'va', 'channel' => 'PERMATA'],
        'va_bsi' => ['type' => 'va', 'channel' => 'BSI'],
        'va_muamalat' => ['type' => 'va', 'channel' => 'MUAMALAT'],
        'va_indomaret' => ['type' => 'va', 'channel' => 'INDOMARET'],
        'va_alfamart' => ['type' => 'va', 'channel' => 'ALFAMART'],

        // ================= EWALLET =================
        'ewallet_dana' => ['type' => 'ewallet', 'channel' => 'DANA'],
        'ewallet_ovo'  => ['type' => 'ewallet', 'channel' => 'OVO'],
        'ewallet_sc'   => ['type' => 'ewallet', 'channel' => 'SC'],
        'ewallet_spay' => ['type' => 'ewallet', 'channel' => 'SPAY'],
    ];

    /**
     * =====================================================
     * PUBLIC FUNCTION
     * =====================================================
     */
    public static function map($method)
    {
        if (!isset(self::$map[$method])) {
            throw new Exception("Metode tidak dikenali: " . $method);
        }

        $data = self::$map[$method];

        return [
            'type'     => $data['type'],
            'channel'  => $data['channel'],
            'endpoint' => $data['endpoint'] ?? self::getDefaultEndpoint($data['type'])
        ];
    }

    /**
     * =====================================================
     * DEFAULT ENDPOINT PER TYPE
     * =====================================================
     */
    private static function getDefaultEndpoint($type)
    {
        switch ($type) {

            case 'va':
                return '/v1.0/transfer-va/create-va';

            case 'qris':
                return '/v1.0/qr/qr-mpm-generate';

            case 'ewallet':
                return '/v1.0/debit/payment-host-to-host';

            default:
                throw new Exception("Type tidak dikenali");
        }
    }
}