<?php

declare(strict_types=1);
/**
 * Calendar App
 *
 * @copyright 2021 Anna Larch <anna.larch@gmx.net>
 *
 * @author Anna Larch <anna.larch@gmx.net>
 * @author Richard Steinmetz <richard@steinmetz.cloud>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
 *
 * You should have received a copy of the GNU Affero General Public
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\Gestion\Service\Devis\Pdf;

use DateTime;
use FPDF;
use OCA\Gestion\Helpers\FileExportHelpers;
use OCA\Gestion\Helpers\PriceHelpers;

class DevisPdfHandler extends FPDF
{
    private $multipleDevisData = [];
    private $devisData = [];
    private $logo = null;
    private $logoPath = "/var/www/html/data/admin/files/.gestion/";
    public function Header()
    {
        if ($this->logo != "nothing") {
            $this->Image($this->logoPath . "logo.png", 4, 2, 36, 37);
        } else {
            $this->Cell(55, 30, '');
        }
    }
    public function Footer()
    {
        $this->SetY(-40);
        $this->SetFont('Arial', '', 7);
        $this->MultiCell(0, 5, utf8_decode(html_entity_decode('Tout retard de paiement entraînera de plein droit une pénalité de retard de 3 fois le taux légal ( Loi 2008-776 du 4 août 2008) et une indemnité forfaitaire de 40 EUR pour frais de recouvrement sera appliquée.')));
        $this->Ln(1);
        $this->MultiCell(0, 5, utf8_decode(html_entity_decode('Si les frais de recouvrement sont supérieurs à ce montant forfaitaire, une indemnisation complémentaire sera due sur présentation de justificatifs ( articles L.441-3 et L.441-6 du code de commerce ).
')));

        $this->SetY(-15);
        $this->SetFont('Arial', 'B', 8);
        $this->Cell(0, 10, utf8_decode(html_entity_decode($this->devisData['configuration']->legal_one)), 0, 0, 'C');
    }

    public function SetDevisPdfData(array $devisData, $logo = null)
    {
        $this->devisData = $devisData;
        $this->logo = $logo;
    }

    public function SetMultipleDevisPdfData(array $multipleDevisData, $logo = null)
    {
        $this->multipleDevisData = $multipleDevisData;
        $this->logo = $logo;
    }

    private function DrawDevisCompanyAndClientInfo()
    {
        $this->SetY(40);
        $this->SetFont('Arial', '', 12);
        $this->Cell(0, 7, FileExportHelpers::FormatTextForExport($this->devisData['configuration']->entreprise), 0, 0);
        $this->Cell(0, 7, FileExportHelpers::FormatTextForExport($this->devisData['client_nom']), 0, 1, 'R');
        $this->Cell(0, 7, FileExportHelpers::FormatTextForExport($this->devisData['configuration_adresse']), 0, 0);
        $this->Cell(0, 7, trim(FileExportHelpers::FormatTextForExport($this->devisData['client_real_adress'])), 0, 1, 'R');
        $this->Cell(0, 7, FileExportHelpers::FormatTextForExport($this->devisData['configuration_adresse_city']), 0, 0);
        $this->Cell(0, 7, trim(FileExportHelpers::FormatTextForExport($this->devisData['client_adress_city'])), 0, 1, 'R');
        $this->Cell(0, 7, FileExportHelpers::FormatTextForExport('Tél : ') . FileExportHelpers::FormatTextForExport($this->devisData['configuration']->telephone), 0, 0);
        $this->Cell(0, 7, 'Siret: ' . $this->devisData['siret'], 0, 1, 'R');
        $this->Cell(0, 7, 'Mail : ' . $this->devisData['configuration']->mail, 0, 1);
        $this->Ln(3);
    }

    private function DrawDevisInfoTable()
    {
        $this->SetFont('Arial', 'B', 11);
        $this->Cell(30, 7, 'DATE', 1, 0, 'C');
        $this->Cell(80, 7, 'CLIENT', 1, 0, 'C');
        $this->Cell(40, 7, 'DEVIS', 1, 1, 'C');

        $this->SetFont('Arial', '', 10);
        $this->Cell(30, 7, $this->devisData['devis_date'], 1, 0, 'C');
        $this->Cell(80, 7, utf8_decode(html_entity_decode($this->devisData['client_nom'])), 1, 0, 'C');
        $this->Cell(40, 7, $this->devisData['devis_full_number'], 1, 1, 'C');

        $this->Ln(8);
    }

    private function DrawArticlesTable()
    {
        $this->SetLineWidth(0.1);
        $this->Rect(10, 105, 190, 100, "D");
        // cadre titre des colonnes
        $this->Line(10, 115, 200, 115);
        // les traits verticaux colonnes
        $this->Line(35, 105, 35, 205);
        $this->Line(135, 105, 135, 205);
        $this->Line(155, 105, 155, 205);
        $this->Line(175, 105, 175, 205);
    }

    private function DrawArticlesTableHeader()
    {
        $this->SetFont('Arial', '', 10);
        $this->SetXY(10, 106);
        $this->Cell(20, 8, "Date", 0, 0, 'C');

        $this->SetXY(35, 106);
        $this->Cell(100, 8, "Description", 0, 0, 'C');

        $this->SetXY(135, 106);
        $this->Cell(20, 8, "Prix Uni. HT", 0, 0, 'C');

        $this->SetXY(155, 106);
        $this->Cell(20, 8, 'TVA', 0, 0, 'C');

        $this->SetXY(175, 106);
        $this->Cell(25, 8, "Prix Uni. TTC", 0, 0, 'C');
    }

    public function DrawArticlesTableValueAndReturnTotalPrice()
    {
        $this->SetFont('Arial', '', 10);

        // Grouper les totaux par taux de TVA
        $totalsByTva = [];
        $products = $this->devisData["products"];
        $yValue = 116;

        foreach ($products as $product) {
            // Récupérer le taux de TVA du produit (défaut à 20% si non défini)
            $tvaValue = isset($product['tva']) ? floatval($product['tva']) : 20.00;

            $valueHt = $product['produit_price'] * $product['quantite'];
            $valueTtc = PriceHelpers::calculPriceWithVatValue($valueHt, $tvaValue);
            $tvaAmount = $valueTtc - $valueHt;

            // Grouper par taux de TVA
            if (!isset($totalsByTva[$tvaValue])) {
                $totalsByTva[$tvaValue] = [
                    'totalHT' => 0,
                    'totalTVA' => 0,
                    'totalTTC' => 0
                ];
            }

            $totalsByTva[$tvaValue]['totalHT'] += $valueHt;
            $totalsByTva[$tvaValue]['totalTVA'] += $tvaAmount;
            $totalsByTva[$tvaValue]['totalTTC'] += $valueTtc;

            // Affichage du produit
            $productDescription = $product["produit_description"];
            $dateValue = "";
            if ($product === end($products)) {
                $dateValue = $this->devisData['devis_date'];
                $productDescription .= " de " . FileExportHelpers::GetSexeLabel($this->devisData['defunt_sexe']) . ' ' . $this->devisData["defunt_nom"];
            }

            $this->SetXY(10, $yValue);
            $this->Cell(20, 6, $dateValue, 0, 0);

            $this->SetXY(35, $yValue);
            $this->MultiAlignCell(100, 6, utf8_decode(html_entity_decode($productDescription)), 0, '0');

            $this->SetXY(135, $yValue);
            $this->Cell(20, 6, number_format($valueHt, 2, '.', '') . chr(128), 0, 0, 'C');

            $this->SetXY(155, $yValue);
            $this->Cell(20, 6, $tvaValue . '%', 0, 0, 'C');

            $this->SetXY(175, $yValue);
            $this->Cell(25, 6, number_format($valueTtc, 2, '.', '') . chr(128), 0, 1, 'C');
            $yValue += 12;
        }

        // Trier par taux de TVA
        ksort($totalsByTva);

        // ⭐ NOUVEAU: Ajouter les lignes de totaux par TVA DANS le tableau
        $this->SetFont('Arial', 'B', 10);

        // Ligne de séparation avant les totaux
        $this->Line(10, $yValue - 2, 200, $yValue - 2);
        $yValue += 2;

        foreach ($totalsByTva as $tva => $totals) {
            $this->SetXY(35, $yValue);
            $this->Cell(100, 6, 'Total TVA ' . number_format($tva, 0) . '%', 0, 0, 'L');

            $this->SetXY(135, $yValue);
            $this->Cell(20, 6, number_format($totals['totalHT'], 2, '.', '') . chr(128), 0, 0, 'C');

            $this->SetXY(155, $yValue);
            $this->Cell(20, 6, number_format($totals['totalTVA'], 2, '.', '') . chr(128), 0, 0, 'C');

            $this->SetXY(175, $yValue);
            $this->Cell(25, 6, number_format($totals['totalTTC'], 2, '.', '') . chr(128), 0, 0, 'C');

            $yValue += 8;
        }

        // Calculer les totaux généraux pour le cadre en bas à droite
        $totalGeneralHT = 0;
        $totalGeneralTVA = 0;
        $totalGeneralTTC = 0;

        foreach ($totalsByTva as $totals) {
            $totalGeneralHT += $totals['totalHT'];
            $totalGeneralTVA += $totals['totalTVA'];
            $totalGeneralTTC += $totals['totalTTC'];
        }

        // Retourner uniquement les totaux généraux
        return [
            'totalHT' => $totalGeneralHT,
            'totalTVA' => $totalGeneralTVA,
            'totalTTC' => $totalGeneralTTC
        ];
    }

    private function DrawBankAndTotalPriceInfo($totalPriceArray)
    {
        $this->SetY(210);
        $this->SetFont('Arial', '', 9);
        $this->MultiCell(0, 5, utf8_decode(html_entity_decode("Paiement à votre convenance par chèque à l'ordre de " . $this->devisData['configuration']->entreprise)));
        $this->MultiCell(0, 5, utf8_decode(html_entity_decode("en indiquant le numéro de facture, ou par virement :")));

        $this->Ln(1);

        //Table IBAN
        $this->SetFont('Arial', '', 11);
        $ibanWidth = 90;
        $ibanCursorY = $this->GetY();
        $this->Cell($ibanWidth, 7, 'IBAN : FR76 1080 7004 4952 4211 5185 411', 1, 1, 'C');
        $ibanCursorX = $this->GetX();
        $this->Cell($ibanWidth, 7, 'Code SWIFT : AGRI FR PP 836', 1, 1, 'C');

        //TABLE DES TOTAUX GÉNÉRAUX UNIQUEMENT (3 lignes)
        $ibanLastPositionX = $ibanCursorX + $ibanWidth + 20;
        $startOfArrayX = $ibanLastPositionX;
        $startOfArrayY = $ibanCursorY;

        // Afficher les 3 totaux généraux
        $this->SetFont('Arial', 'B', 11);

        $this->SetXY($startOfArrayX, $startOfArrayY);
        $this->Cell(40, 7, 'TOTAL HT', 1, 0, 'C');
        $this->Cell(40, 7, number_format($totalPriceArray['totalHT'], 2, '.', '') . chr(128), 1, 1, 'C');
        $startOfArrayY += 7;

        $this->SetXY($startOfArrayX, $startOfArrayY);
        $this->Cell(40, 7, 'TOTAL TVA', 1, 0, 'C');
        $this->Cell(40, 7, number_format($totalPriceArray['totalTVA'], 2, '.', '') . chr(128), 1, 1, 'C');
        $startOfArrayY += 7;

        $this->SetXY($startOfArrayX, $startOfArrayY);
        $this->Cell(40, 7, 'TOTAL TTC', 1, 0, 'C');
        $this->Cell(40, 7, number_format($totalPriceArray['totalTTC'], 2, '.', '') . chr(128), 1, 1, 'C');
    }

    public function SetMultipleDevisContent()
    {
        foreach ($this->multipleDevisData as $devisData) {
            $this->devisData = $devisData;
            $this->SetDevisContent();
        }
    }

    public function SetDevisContent()
    {
        $this->AddPage();
        $this->SetMargins(10, 0, 10);
        $this->DrawDevisCompanyAndClientInfo();
        $this->DrawDevisInfoTable();
        $this->DrawArticlesTable();
        $this->DrawArticlesTableHeader();
        $totalPriceValue = $this->DrawArticlesTableValueAndReturnTotalPrice();
        $this->DrawBankAndTotalPriceInfo($totalPriceValue);
    }

    public function MultiAlignCell($w, $h, $text, $border = 0, $ln = 0, $align = 'L', $fill = false)
    {
        // Store reset values for (x,y) positions
        $x = $this->GetX() + $w;
        $y = $this->GetY();

        // Make a call to FPDF's MultiCell
        $this->MultiCell($w, $h, $text, $border, $align, $fill);

        // Reset the line position to the right, like in Cell
        if ($ln == 0) {
            $this->SetXY($x, $y);
        }
    }

    public function NbLines($w, $txt)
    {
        // Compute the number of lines a MultiCell of width w will take
        if (!isset($this->CurrentFont)) {
            $this->Error('No font has been set');
        }
        $cw = $this->CurrentFont['cw'];
        if ($w == 0) {
            $w = $this->w - $this->rMargin - $this->x;
        }
        $wmax = ($w - 2 * $this->cMargin) * 1000 / $this->FontSize;
        $s = str_replace("\r", '', (string) $txt);
        $nb = strlen($s);
        if ($nb > 0 && $s[$nb - 1] == "\n") {
            $nb--;
        }
        $sep = -1;
        $i = 0;
        $j = 0;
        $l = 0;
        $nl = 1;
        while ($i < $nb) {
            $c = $s[$i];
            if ($c == "\n") {
                $i++;
                $sep = -1;
                $j = $i;
                $l = 0;
                $nl++;
                continue;
            }
            if ($c == ' ') {
                $sep = $i;
            }
            $l += $cw[$c];
            if ($l > $wmax) {
                if ($sep == -1) {
                    if ($i == $j) {
                        $i++;
                    }
                } else {
                    $i = $sep + 1;
                }
                $sep = -1;
                $j = $i;
                $l = 0;
                $nl++;
            } else {
                $i++;
            }
        }
        return $nl;
    }
}