<?php

namespace OCA\Gestion\Service\Devis;

use OCP\Files\IRootFolder;
use OCP\Files\NotPermittedException;

class DevisPdfGenerator
{
    /** @var IRootFolder */
    private $rootFolder;

    /** @var DevisPdfLayoutManager */
    private $layoutManager;

    /** @var DevisPdfTableRenderer */
    private $tableRenderer;

    public const DEFAULT_NEXTCLOUD_ADMIN = 'admin';

    public function __construct(IRootFolder $rootFolder)
    {
        $this->rootFolder = $rootFolder;
        $this->layoutManager = new DevisPdfLayoutManager($rootFolder);
        $this->tableRenderer = new DevisPdfTableRenderer();
    }

    public function generatePdfDocument($storage, $currentConfig, $data_devis, $clientInfo, $month, $year, $montant)
    {
        $configurationAddresses = \OCA\Gestion\Helpers\FileExportHelpers::GetAddressAndCityFromAddress($currentConfig->adresse);
        $configurationAddress = $configurationAddresses["address"];
        $configurationAddressCity = $configurationAddresses["city"];

        $pdf = $this->createPdfInstance();
        $folderPath = $this->createDestinationFolder($storage, $currentConfig, $data_devis[0], $month, $year);

        // Créer le contexte une seule fois
        $context = new PageContext($pdf, $currentConfig, $configurationAddress, $configurationAddressCity, $data_devis, $clientInfo, $year, $montant);

        $this->generatePdfPages($context);

        return $this->savePdfFile($storage, $pdf, $folderPath, $clientInfo, $month, $year);
    }

    public function createPdfInstance()
    {
        $pdf = new \FPDF();
        $pdf->AddFont('Arial', '', 'Comic Sans MS.php');
        $pdf->AddFont('Arial', 'B', 'comic-sans-bold.php');
        return $pdf;
    }

    public function createDestinationFolder($storage, $currentConfig, $firstDevis, $month, $year)
    {
        $date_temp = date("t-m-Y", strtotime($firstDevis['devis_date']));
        $formatter = new \IntlDateFormatter('fr_FR', \IntlDateFormatter::LONG, \IntlDateFormatter::NONE);
        $date_formated = $formatter->format(\DateTime::createFromFormat('d-m-Y', $date_temp));

        $folderPath = html_entity_decode($currentConfig->path) . '/DOCUMENTS RECAPITULATIFS/' . $year . '/' .
                     str_pad($month, 2, '0', STR_PAD_LEFT) . ' ' .
                     strtoupper(\OCA\Gestion\Helpers\FileExportHelpers::ConvertSpecialChar(explode(' ', $date_formated)[1])) . '/';

        try {
            $storage->newFolder($folderPath);
        } catch(NotPermittedException $e) {
            // Le dossier existe déjà
        }

        return $folderPath;
    }

    private function generatePdfPages(PageContext $context)
    {
        $pagination = $this->calculatePagination(count($context->dataDevis));
        $totals = ['ht' => 0, 'tva' => 0, 'ttc' => 0];

        for ($num_page = 1; $num_page <= $pagination['nb_pages']; $num_page++) {
            $this->generateSinglePage($context, $num_page, $pagination, $totals);
        }
    }

    private function calculatePagination($totalItems)
    {
        return [
            'nb_pages' => ceil($totalItems / 26),
            'items_per_page' => 26,
            'current_index' => 0
        ];
    }

    // VOICI LA FONCTION CORRIGÉE - 4 paramètres au lieu de 10
    private function generateSinglePage(PageContext $context, $num_page, &$pagination, &$totals)
    {
        $context->pdf->AddPage();
        $context->pdf->SetAutoPagebreak(false);
        $context->pdf->SetMargins(0, 0, 10);

        $this->layoutManager->addPageHeader($context->pdf, $context->currentConfig, $context->configurationAddress, $context->configurationAddressCity);
        $this->layoutManager->addPageNumber($context->pdf, $num_page, $pagination['nb_pages']);
        $this->layoutManager->addClientInfoSection($context->pdf, $context->clientInfo, $context->dataDevis[0]);
        $this->layoutManager->addDocumentTitle($context->pdf, $context->dataDevis[0], $context->year);

        $itemsToProcess = min($pagination['items_per_page'], count($context->dataDevis) - $pagination['current_index']);

        $config = [
            'pagination' => $pagination,
            'itemsToProcess' => $itemsToProcess,
            'numPage' => $num_page,
            'nbPage' => $pagination['nb_pages'],
            'totals' => &$totals,
            'sansMontant' => $context->montant
        ];

        $this->tableRenderer->createDevisTable(
            $context->pdf,
            $context->dataDevis,
            $config
        );

        $this->layoutManager->addLegalFooter($context->pdf, $context->currentConfig);
        $pagination['current_index'] += $itemsToProcess;
    }

    private function savePdfFile($storage, $pdf, $folderPath, $clientInfo, $month, $year)
    {
        $filename = $this->generateDevisRecapFilename($clientInfo, $month, $year);
        $fullPdfPath = $folderPath . $filename . '.pdf';

        $storage->newFile($fullPdfPath);
        $pdfContent = $pdf->Output('', 'S');
        $file_pdf = $storage->get($fullPdfPath);
        $file_pdf->putContent($pdfContent);

        return $fullPdfPath;
    }

    private function generateDevisRecapFilename($clientInfo, $month, $year)
    {
        $monthName = strtoupper(\OCA\Gestion\Helpers\FileExportHelpers::ConvertSpecialChar(date('F', mktime(0, 0, 0, $month, 10))));
        $clientName = strtoupper(\OCA\Gestion\Helpers\FileExportHelpers::ConvertSpecialChar($clientInfo['name']));

        return $clientName . '_RECAP_DEVIS_' . $monthName . '_' . $year;
    }
}