<?php

namespace App\Http\Controllers\Fo;

use App\Http\Controllers\Controller;
use App\Http\Requests\Fo\MesBr\PrintCouponsRequest;
use App\Models\Customer;
use Illuminate\Support\Arr;

class DiscountController extends Controller
{
    /**
     * Fetch PDF BR.
     *
     * @return \Symfony\Component\HttpFoundation\StreamedResponse
     */
    public function fetchBrPdf(): \Symfony\Component\HttpFoundation\StreamedResponse
    {
        /** @var \App\Models\Customer $customer */
        $customer = auth('frontend')->user();

        $pdf = $this->fetchBrPdfFromMesBr($customer);

        if ($pdf === null) {
            \back()->withErrors([
                'coupon' => trans('Impossible de récupérer le fichier pdf')
            ])->throwResponse();
        }

        return response()->streamDownload(function () use ($pdf) {
            echo $pdf;
        }, trans('mes-bons-de-reduction-:date.pdf', [
            'date' => now()->isoFormat('DD-MM-Y-HH\hmm')
        ]), [
            'Cache-Control'       => 'public, must-revalidate, max-age=0',
            'Content-Description' => 'File Transfer',
            'Content-Type'        => 'application/pdf',
            'Expires'             => 'Sat, 26 Jul 1997 05:00:00 GMT',
            'Last-Modified'       => gmdate('D, d M Y H:i:s') . ' GMT',
            'X-Generator'         => 'mPDF'
        ]);
    }

    /**
     * Fetch coupons PDF.
     *
     * @param \App\Models\Customer $customer
     * @return string|null
     * @phpcs:disable Generic.Metrics.CyclomaticComplexity.TooHigh
     */
    private function fetchBrPdfFromMesBr(Customer $customer): ?string
    {
        // phpcs:enable
        // * Phase - 1 Recupération des informations CRM
        /** @var \App\Models\Customer $customer */
        $customer = auth('frontend')->user();
        /** @var \LDC\LDCCRM\Models\Customer $crmCustomer */
        $crmCustomer = $customer->api_data;

        try {
            /** @var \LDC\MESBR\MesBr */
            $mesBr  = app('mesBrAPI');
            $result = $mesBr->printBasketCustomer($crmCustomer->hashcode);
            $result = \is_object($result) ? (array) $result : $result;

            if (Arr::get($result, 'status') !== "OK") {
                report(new \RuntimeException(
                    \sprintf(
                        'MESBR : Une erreur est survenue. Code : %s Message : %s',
                        Arr::get($result, 'code') ?? 'Undefined',
                        Arr::get($result, 'message') ?? 'Undefined',
                    )
                ));
                return null;
            }

            // * La réponse est conforme ?
            $needed_fields = ['pdf'];
            if (!Arr::has($result, $needed_fields)) {
                report(new \RuntimeException(sprintf(
                    'MESBR : Il manques des champs dans la réponse, attendu => %s, donné => %s',
                    json_encode($needed_fields),
                    json_encode($result),
                )));
                return null;
            }

            // * Tout est OK
            return \base64_decode(Arr::get($result, 'pdf')) ?: null;
        } catch (\RuntimeException $e) {
            report($e);
            // * Retenter ?
            return null;
        } //end try
    }
}