<?php

/**
 * Copyright distrib (2018)
 *
 * contact@opendistrib.net
 *
 * Ce logiciel est un programme informatique servant à aider les producteurs
 * à distribuer leur production en circuits courts.
 *
 * Ce logiciel est régi par la licence CeCILL soumise au droit français et
 * respectant les principes de diffusion des logiciels libres. Vous pouvez
 * utiliser, modifier et/ou redistribuer ce programme sous les conditions
 * de la licence CeCILL telle que diffusée par le CEA, le CNRS et l'INRIA
 * sur le site "http://www.cecill.info".
 *
 * En contrepartie de l'accessibilité au code source et des droits de copie,
 * de modification et de redistribution accordés par cette licence, il n'est
 * offert aux utilisateurs qu'une garantie limitée.  Pour les mêmes raisons,
 * seule une responsabilité restreinte pèse sur l'auteur du programme,  le
 * titulaire des droits patrimoniaux et les concédants successifs.
 *
 * A cet égard  l'attention de l'utilisateur est attirée sur les risques
 * associés au chargement,  à l'utilisation,  à la modification et/ou au
 * développement et à la reproduction du logiciel par l'utilisateur étant
 * donné sa spécificité de logiciel libre, qui peut le rendre complexe à
 * manipuler et qui le réserve donc à des développeurs et des professionnels
 * avertis possédant  des  connaissances  informatiques approfondies.  Les
 * utilisateurs sont donc invités à charger  et  tester  l'adéquation  du
 * logiciel à leurs besoins dans des conditions permettant d'assurer la
 * sécurité de leurs systèmes et ou de leurs données et, plus généralement,
 * à l'utiliser et l'exploiter dans les mêmes conditions de sécurité.
 *
 * Le fait que vous puissiez accéder à cet en-tête signifie que vous avez
 * pris connaissance de la licence CeCILL, et que vous en avez accepté les
 * termes.
 */

namespace common\models;

use common\helpers\GlobalParam;
use kartik\mpdf\Pdf;
use Symfony\Component\Finder\Exception\DirectoryNotFoundException;
use yii\base\ErrorException;

class Document extends ActiveRecordCommon
{
    const STATUS_DRAFT = 'draft';
    const STATUS_VALID = 'valid';

    const TAX_CALCULATION_METHOD_SUM_OF_ROUNDINGS = 'sum-roundings';
    const TAX_CALCULATION_METHOD_ROUNDING_OF_THE_SUM = 'rounding-sum';
    const TAX_CALCULATION_METHOD_DEFAULT = self::TAX_CALCULATION_METHOD_ROUNDING_OF_THE_SUM;

    public static $taxCalculationMethodArray = [
        self::TAX_CALCULATION_METHOD_ROUNDING_OF_THE_SUM => 'Arrondi de la somme des lignes',
        self::TAX_CALCULATION_METHOD_SUM_OF_ROUNDINGS => 'Somme des arrondis de chaque ligne'
    ];

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['name', 'id_user'], 'required'],
            [['date'], 'safe'],
            [['comment', 'address', 'tax_calculation_method'], 'string'],
            [['id_user', 'id_producer'], 'integer'],
            ['is_sent', 'boolean'],
            [['name', 'reference', 'status'], 'string', 'max' => 255],
            [['deliveryNotes'], 'safe']
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'name' => 'Nom',
            'reference' => 'Référence',
            'date' => 'Date',
            'comment' => 'Commentaire',
            'id_user' => 'Utilisateur',
            'address' => 'Adresse',
            'id_producer' => 'Producteur',
            'status' => 'Statut',
            'tax_calculation_method' => 'Méthode de calcul de la TVA',
            'is_sent' => 'Envoyé'
        ];
    }

    /*
     * Relations
     */

    public function getUser()
    {
        return $this->hasOne(User::className(), ['id' => 'id_user']);
    }

    public function getProducer()
    {
        return $this->hasOne(Producer::className(), ['id' => 'id_producer']);
    }

    public function relationOrders($fieldIdDocument)
    {
        $defaultOptionsSearch = Order::defaultOptionsSearch();

        return $this->hasMany(Order::className(), [$fieldIdDocument => 'id'])
            ->with($defaultOptionsSearch['with'])
            ->joinWith($defaultOptionsSearch['join_with'])
            ->orderBy('distribution.date ASC');
    }

    /*
     * Méthodes
     */

    public function getAmount($type = Order::AMOUNT_TOTAL, $format = false)
    {
        return $this->_getAmountGeneric($type, false, $format);
    }

    public function getAmountWithTax($type = Order::AMOUNT_TOTAL, $format = false)
    {
        return $this->_getAmountGeneric($type, true, $format);
    }

    protected function _getAmountGeneric($type = Order::AMOUNT_TOTAL, $withTax = true, $format = false)
    {
        $amount = 0;
        $totalVat = 0;
        $ordersArray = $this->orders;

        // Méthode de calcul via les commandes liées
        /*foreach ($ordersArray as $order) {
            $order->init($this->tax_calculation_method);
            $amount += $order->getAmount($type);
            $totalVat += $order->getTotalVat($type);
        }*/

        // Méthode de calcul via getProductOrders()
        foreach($this->getProductsOrders() as $productOrderArray) {
            foreach($productOrderArray as $productOrder) {
                $priceLine = $productOrder->getPriceByTypeTotal($type) * $productOrder->quantity;
                $amount += $priceLine;
                $totalVat += Price::getVat($priceLine, $productOrder->taxRate->value, $this->tax_calculation_method);
            }
        }

        if ($this->isTaxCalculationMethodRoundingOfTheSum()) {
            $totalVat = Price::round($totalVat);
        }

        if ($withTax) {
            $amount += $totalVat;
        }

        if ($format) {
            return Price::format($amount);
        } else {
            return $amount;
        }
    }

    public function getTotalVatArray($typeTotal)
    {
        $totalVatArray = [];

        // Méthode de calcul via les commandes liées
        /*$ordersArray = $this->orders;
        foreach ($ordersArray as $order) {
            $order->init($this->tax_calculation_method);
            $fieldNameVat = $order->getFieldNameAmount($typeTotal, 'vat');
            foreach ($order->$fieldNameVat as $idTaxRate => $vat) {
                if (!isset($totalVatArray[$idTaxRate])) {
                    $totalVatArray[$idTaxRate] = 0;
                }
                $totalVatArray[$idTaxRate] += $vat;
            }
        }*/

        // Méthode de calcul via getProductOrders()
        foreach($this->getProductsOrders() as $productOrderArray) {
            foreach ($productOrderArray as $productOrder) {

                $idTaxRate = $productOrder->taxRate->id;
                if (!isset($totalVatArray[$idTaxRate])) {
                    $totalVatArray[$idTaxRate] = 0;
                }

                $totalVatArray[$idTaxRate] += Price::getVat(
                    $productOrder->getPriceByTypeTotal($typeTotal) * $productOrder->quantity,
                    $productOrder->taxRate->value,
                    $this->tax_calculation_method
                );
            }
        }

        return $totalVatArray;
    }

    public function getPointSale()
    {
        if (isset($this->orders) && isset($this->orders[0])) {
            return $this->orders[0]->pointSale;
        } else {
            return '';
        }
    }

    public function getDistribution()
    {
        if (isset($this->orders) && isset($this->orders[0])) {
            return $this->orders[0]->distribution;
        } else {
            return '';
        }
    }

    public function getClass()
    {
        return str_replace('common\models\\', '', get_class($this));
    }

    public function getType()
    {
        $class = $this->getClass();

        if ($class == 'Invoice') {
            $documentType = 'Facture';
        } elseif ($class == 'DeliveryNote') {
            $documentType = 'Bon de livraison';
        } elseif ($class == 'Quotation') {
            $documentType = 'Devis';
        }

        if (isset($documentType)) {
            return $documentType;
        }

        return '';
    }

    public function isValidClass($typeDocument)
    {
        return in_array($typeDocument, ['Invoice', 'DeliveryNote', 'Quotation']);
    }

    public function generateReference()
    {
        $class = $this->getClass();
        $classLower = strtolower($class);
        if ($classLower == 'deliverynote') {
            $classLower = 'delivery_note';
        }

        $prefix = Producer::getConfig('document_' . $classLower . '_prefix');
        $oneDocumentExist = $class::searchOne(['status' => Document::STATUS_VALID], ['orderby' => 'reference DESC']);

        if ($oneDocumentExist) {
            $reference = $oneDocumentExist->reference;
            $pattern = '#([A-Z]+)?([0-9]+)#';
            preg_match($pattern, $reference, $matches, PREG_OFFSET_CAPTURE);
            $sizeNumReference = strlen($matches[2][0]);
            $numReference = ((int)$matches[2][0]) + 1;
            $numReference = str_pad($numReference, $sizeNumReference, '0', STR_PAD_LEFT);

            return $prefix . $numReference;
        } else {
            $firstReference = Producer::getConfig('document_' . $classLower . '_first_reference');

            if (strlen($firstReference) > 0) {
                return $firstReference;
            } else {
                return $prefix . '00001';
            }
        }
    }

    public function downloadPdf()
    {
        $filenameComplete = $this->getFilenameComplete();

        if (!file_exists($filenameComplete)) {
            $this->generatePdf(Pdf::DEST_FILE);
        }

        if (file_exists($filenameComplete)) {
            return Yii::$app->response->sendFile($filenameComplete, $this->getFilename(), ['inline' => true]);
        } else {
            throw new ErrorException('File ' . $filenameComplete . ' not found');
        }
    }

    public function generatePdf($destination)
    {
        $producer = $this->producer;
        $content = Yii::$app->controller->renderPartial('/document/download', [
            'producer' => $producer,
            'document' => $this
        ]);

        $contentFooter = '<div id="footer">';
        $contentFooter .= '<div class="infos-bottom">' . Html::encode($producer->document_infos_bottom) . '</div>';
        if ($this->isStatusValid() || $this->isStatusDraft()) {
            $contentFooter .= '<div class="reference-document">';
            if ($this->isStatusValid()) {
                $contentFooter .= $this->getType() . ' N°' . $this->reference;
            }
            if ($this->isStatusDraft()) {
                $contentFooter .= $this->getType() . ' non validé';
                if ($this->getType() == 'Facture') {
                    $contentFooter .= 'e';
                }
            }
            $contentFooter .= '</div>';
        }
        $contentFooter .= '</div>';

        $marginBottom = 10;
        if (strlen(Producer::getConfig('document_infos_bottom')) > 0) {
            $marginBottom = 40;
        }

        $this->initDirectoryPdf();

        $pdf = new Pdf([
            'mode' => Pdf::MODE_UTF8,
            'format' => Pdf::FORMAT_A4,
            'orientation' => Pdf::ORIENT_PORTRAIT,
            'destination' => $destination,
            'content' => $content,
            'filename' => $this->getFilenameComplete(),
            'cssFile' => Yii::getAlias('@webroot/css/document/download.css'),
            'marginBottom' => $marginBottom,
            'methods' => [
                'SetHTMLFooter' => $contentFooter
            ]
        ]);

        return $pdf->render();
    }

    public function send()
    {
        if (isset($this->user) && strlen($this->user->email) > 0) {
            $producer = GlobalParam::getCurrentProducer();

            $subjectEmail = $this->getType();
            if ($this->isStatusValid()) {
                $subjectEmail .= ' N°' . $this->reference;
            }

            $email = Yii::$app->mailer->compose(
                [
                    'html' => 'sendDocument-html',
                    'text' => 'sendDocument-text'
                ], [
                'document' => $this,
            ])
                ->setTo($this->user->email)
                ->setFrom([$producer->getEmailOpendistrib() => $producer->name])
                ->setSubject('[' . $producer->name . '] ' . $subjectEmail);

            $this->generatePdf(Pdf::DEST_FILE);
            $email->attach($this->getFilenameComplete());

            return $email->send();
        }

        return false;
    }

    public function changeStatus($status)
    {
        if ($status == Document::STATUS_VALID) {
            $this->status = $status;
            $this->reference = $this->generateReference();
        }
    }

    public function getStatusWording()
    {
        return ($this->status == self::STATUS_DRAFT) ? 'Brouillon' : 'Validé';
    }

    public function getStatusCssClass()
    {
        return ($this->status == self::STATUS_DRAFT) ? 'default' : 'success';
    }

    public function getHtmlLabel()
    {
        $label = $this->getStatusWording();
        $classLabel = $this->getStatusCssClass();
        return '<span class="label label-' . $classLabel . '">' . $label . '</span>';
    }

    public function isStatus($status)
    {
        return $this->status == $status;
    }

    public function isStatusDraft()
    {
        return $this->isStatus(self::STATUS_DRAFT);
    }

    public function isStatusValid()
    {
        return $this->isStatus(self::STATUS_VALID);
    }

    public function getProductsOrders()
    {
        $productsOrdersArray = [];
        $ordersArray = $this->orders;
        if ($ordersArray && count($ordersArray)) {
            foreach ($ordersArray as $order) {
                foreach ($order->productOrder as $productOrder) {
                    if ($productOrder->product) {
                        $indexProductOrder = $productOrder->product->order;
                        $newProductOrder = clone $productOrder;

                        if (!isset($productsOrdersArray[$indexProductOrder])) {
                            $productsOrdersArray[$indexProductOrder] = [$newProductOrder];
                        } else {
                            $productOrderMatch = false;
                            foreach ($productsOrdersArray[$indexProductOrder] as &$theProductOrder) {
                                if ($theProductOrder->unit == $productOrder->unit
                                        && $theProductOrder->price == $productOrder->price
                                        && $theProductOrder->invoice_price == $productOrder->invoice_price) {

                                    $theProductOrder->quantity += $productOrder->quantity;
                                    $productOrderMatch = true;
                                }
                            }
                            if (!$productOrderMatch) {
                                $productsOrdersArray[$indexProductOrder][] = $newProductOrder;
                            }
                        }
                    }
                }
            }
        }

        // tri des orderProduct par product.order
        ksort($productsOrdersArray);

        return $productsOrdersArray;
    }

    public function isDisplayOrders()
    {
        $displayOrders = ($this->getClass() == 'Invoice') ?
            Producer::getConfig('document_display_orders_invoice') :
            Producer::getConfig('document_display_orders_delivery_note');

        return $displayOrders;
    }

    public function getAliasDirectoryBase()
    {
        return '@app/web/pdf/' . $this->id_producer . '/';
    }

    public function initDirectoryPdf()
    {
        $aliasDirectoryBase = $this->getAliasDirectoryBase();
        $directoryPdf = Yii::getAlias($aliasDirectoryBase);
        if (!file_exists($directoryPdf)) {
            mkdir($directoryPdf, 0755);
        }
    }

    public function getFilename()
    {
        $filename = $this->getType() . '-';

        if($this->isStatusValid()) {
            $filename .= $this->reference;
        }
        elseif($this->isStatusDraft()) {
            $filename .= 'Brouillon-'.$this->id;
        }

        $filename .= '.pdf';

        return $filename;
    }

    public function getFilenameComplete()
    {
        return Yii::getAlias($this->getAliasDirectoryBase() . $this->getFilename());
    }

    public function isInvoicePrice()
    {
        return $this->getClass() == 'Invoice' || $this->getClass() == 'DeliveryNote';
    }

    public function isTaxCalculationMethodSumOfRoundings()
    {
        return $this->tax_calculation_method == self::TAX_CALCULATION_METHOD_SUM_OF_ROUNDINGS;
    }

    public function isTaxCalculationMethodRoundingOfTheSum()
    {
        return $this->tax_calculation_method == self::TAX_CALCULATION_METHOD_ROUNDING_OF_THE_SUM;
    }

    public function initTaxCalculationMethod()
    {
        $producerTaxCalculationMethod = Producer::getConfig('option_tax_calculation_method');

        if ($producerTaxCalculationMethod) {
            $this->tax_calculation_method = $producerTaxCalculationMethod;
        } else {
            $this->tax_calculation_method = self::TAX_CALCULATION_METHOD_DEFAULT;
        }
    }
}