<?php
/* Copyright (C) 2007-2008 Jeremie Ollivier <jeremie.o@laposte.net>
 * Copyright (C) 2008-2010 Laurent Destailleur   <eldy@uers.sourceforge.net>
 * Copyright (C) 2010      Juanjo Menent    <jmenent@2byte.es>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

include_once DOL_DOCUMENT_ROOT.'/core/lib/price.lib.php';


/**
 * Class to manage invoices for pos module (cashdesk)
 */
class Facturation
{
	/**
	 * Attributs "volatiles" : reinitialises apres chaque traitement d'un article
	 * <p>Attributs "volatiles" : reinitialises apres chaque traitement d'un article</p>
	 * int $id			=> 'rowid' du produit dans llx_product
	 * string $ref		=> 'ref' du produit dans llx_product
	 * int $qte			=> Quantite pour le produit en cours de traitement
	 * int $stock		=> Stock theorique pour le produit en cours de traitement
	 * int $remise_percent	=> Remise en pourcent sur le produit en cours
	 * int $montant_remise	=> Remise en pourcent sur le produit en cours
	 * int $prix		=> Prix HT du produit en cours
	 * int $tva			=> 'rowid' du taux de tva dans llx_c_tva
	 */

	/**
	 * @var int ID
	 */
	public $id;

	protected $ref;
	protected $qte;
	protected $stock;
	protected $remise_percent;
	protected $montant_remise;
	protected $prix;
	protected $tva;

	/**
	 * Attributs persistants : utilises pour toute la duree de la vente (jusqu'a validation ou annulation)
	 * string $num_facture	=> Numero de la facture (de la forme FAYYMM-XXXX)
	 * string $mode_reglement	=> Mode de reglement (ESP, CB ou CHQ)
	 * int $montant_encaisse	=> Montant encaisse en cas de reglement en especes
	 * int $montant_rendu	=> Monnaie rendue en cas de reglement en especes
	 * int $paiement_le		=> Date de paiement en cas de paiement differe
	 *
	 * int $prix_total_ht	=> Prix total hors taxes
	 * int $montant_tva		=> Montant total de la TVA, tous taux confondus
	 * int $prix_total_ttc	=> Prix total TTC
	 */
	protected $num_facture;
	protected $mode_reglement;
	protected $montant_encaisse;
	protected $montant_rendu;
	protected $paiement_le;

	protected $prix_total_ht;
	protected $montant_tva;
	protected $prix_total_ttc;


	/**
	 *	Constructor
	 */
	public function __construct()
	{
		$this->raz();
		$this->razPers();
	}


	// Data processing methods


	/**
	 *  Add a product into cart
	 *
	 *  @return	void
	 */
	public function ajoutArticle()
	{
		global $conf, $db, $mysoc;

		$thirdpartyid = $_SESSION['CASHDESK_ID_THIRDPARTY'];

		$societe = new Societe($db);
		$societe->fetch($thirdpartyid);

		$product = new Product($db);
		$product->fetch($this->id);


		$vatrowid = $this->tva();

		$tmp = getTaxesFromId($vatrowid);
		$txtva = $tmp['rate'].(empty($tmp['code']) ? '' : ' ('.$tmp['code'].')');
		$vat_npr = $tmp['npr'];

		$localtaxarray = getLocalTaxesFromRate($vatrowid, 0, $societe, $mysoc, 1);

		// Clean vat code
		$reg = array();
		$vat_src_code = '';
		if (preg_match('/\((.*)\)/', $txtva, $reg)) {
			$vat_src_code = $reg[1];
			$txtva = preg_replace('/\s*\(.*\)/', '', $txtva); // Remove code into vatrate.
		}

		// Define part of HT, VAT, TTC
		$resultarray = calcul_price_total($this->qte, $this->prix(), $this->remisePercent(), $txtva, -1, -1, 0, 'HT', $vat_npr, $product->type, $mysoc, $localtaxarray);

		// Calculation of total HT without discount
		$total_ht = $resultarray[0];
		$total_vat = $resultarray[1];
		$total_ttc = $resultarray[2];
		$total_localtax1 = $resultarray[9];
		$total_localtax2 = $resultarray[10];

		// Calculation of the discount amount
		if ($this->remisePercent()) {
			$remise_percent = $this->remisePercent();
		} else {
			$remise_percent = 0;
		}
		$montant_remise_ht = ($resultarray[6] - $resultarray[0]);
		$this->amountDiscount($montant_remise_ht);

		$newcartarray = $_SESSION['poscart'];

		$i = 0;
		if (!is_null($newcartarray) && !empty($newcartarray)) {
			$i = count($newcartarray);
		}

		$newcartarray[$i]['id'] = $i;
		$newcartarray[$i]['ref'] = $product->ref;
		$newcartarray[$i]['label'] = $product->label;
		$newcartarray[$i]['price'] = $product->price;
		$newcartarray[$i]['price_ttc'] = $product->price_ttc;

		if (!empty($conf->global->PRODUIT_MULTIPRICES)) {
			if (isset($product->multiprices[$societe->price_level])) {
				$newcartarray[$i]['price'] = $product->multiprices[$societe->price_level];
				$newcartarray[$i]['price_ttc'] = $product->multiprices_ttc[$societe->price_level];
			}
		}

		$newcartarray[$i]['fk_article'] = $this->id;
		$newcartarray[$i]['qte'] = $this->qte();
		$newcartarray[$i]['fk_tva'] = $this->tva(); // Vat rowid
		$newcartarray[$i]['remise_percent'] = $remise_percent;
		$newcartarray[$i]['remise'] = price2num($montant_remise_ht);
		$newcartarray[$i]['total_ht'] = price2num($total_ht, 'MT');
		$newcartarray[$i]['total_ttc'] = price2num($total_ttc, 'MT');
		$newcartarray[$i]['total_vat'] = price2num($total_vat, 'MT');
		$newcartarray[$i]['total_localtax1'] = price2num($total_localtax1, 'MT');
		$newcartarray[$i]['total_localtax2'] = price2num($total_localtax2, 'MT');
		$_SESSION['poscart'] = $newcartarray;

		$this->raz();
	}

	/**
	 *  Remove a product from panel
	 *
	 *  @param  int		$aArticle	Id of line into cart to remove
	 *  @return	void
	 */
	public function supprArticle($aArticle)
	{
		$poscart = $_SESSION['poscart'];

		$j = 0;
		$newposcart = array();
		foreach ($poscart as $key => $val) {
			if ($poscart[$key]['id'] != $aArticle) {
				$newposcart[$j] = $poscart[$key];
				$newposcart[$j]['id'] = $j;
				$j++;
			}
		}
		unset($poscart);
		//var_dump($poscart);exit;
		$_SESSION['poscart'] = $newposcart;
	}

	/**
	 * Calculation of total HT, total TTC and VAT amounts
	 *
	 * @return	int		Total
	 */
	public function calculTotaux()
	{
		global $db;

		$total_ht = 0;
		$total_ttc = 0;
		$total_vat = 0;
		$total_localtax1 = 0;
		$total_localtax2 = 0;

		$tab = (!empty($_SESSION['poscart']) ? $_SESSION['poscart'] : array());

		$tab_size = count($tab);
		for ($i = 0; $i < $tab_size; $i++) {
			// Total HT
			$remise = $tab[$i]['remise'];
			$total_ht += ($tab[$i]['total_ht']);
			$total_vat += ($tab[$i]['total_vat']);
			$total_ttc += ($tab[$i]['total_ttc']);
			$total_localtax1 += ($tab[$i]['total_localtax1']);
			$total_localtax2 += ($tab[$i]['total_localtax2']);
		}

		$this->prix_total_ttc = $total_ttc;
		$this->prix_total_ht = $total_ht;
		$this->prix_total_vat = $total_vat;
		$this->prix_total_localtax1 = $total_localtax1;
		$this->prix_total_localtax2 = $total_localtax2;

		$this->montant_tva = $total_ttc - $total_ht;
		//print 'total: '.$this->prix_total_ttc; exit;
	}

	/**
	 * Reset attributes
	 *
	 * @return	void
	 */
	public function raz()
	{
		$this->id('RESET');
		$this->ref('RESET');
		$this->qte('RESET');
		$this->stock('RESET');
		$this->remisePercent('RESET');
		$this->amountDiscount('RESET');
		$this->prix('RESET');
		$this->tva('RESET');
	}

	/**
	 * Resetting persistent attributes
	 *
	 *  @return	void
	 */
	private function razPers()
	{
		$this->numInvoice('RESET');
		$this->getSetPaymentMode('RESET');
		$this->amountCollected('RESET');
		$this->amountReturned('RESET');
		$this->paiementLe('RESET');

		$this->amountWithoutTax('RESET');
		$this->amountVat('RESET');
		$this->amountWithTax('RESET');
	}


	// Methods for modifying protected attributes

	/**
	 * Getter for id
	 *
	 * @param	int		$aId	Id
	 * @return  int             Id
	 */
	public function id($aId = null)
	{

		if (!$aId) {
			return $this->id;
		} elseif ($aId == 'RESET') {
			$this->id = null;
		} else {
			$this->id = $aId;
		}
	}

	/**
	 * Getter for ref
	 *
	 * @param	string	$aRef	Ref
	 * @return	string			Ref
	 */
	public function ref($aRef = null)
	{

		if (is_null($aRef)) {
			return $this->ref;
		} elseif ($aRef == 'RESET') {
			$this->ref = null;
		} else {
			$this->ref = $aRef;
		}
	}

	/**
	 * Getter for qte
	 *
	 * @param	int		$aQte		Qty
	 * @return	int					Qty
	 */
	public function qte($aQte = null)
	{
		if (is_null($aQte)) {
			return $this->qte;
		} elseif ($aQte == 'RESET') {
			$this->qte = null;
		} else {
			$this->qte = $aQte;
		}
	}

	/**
	 * Getter for stock
	 *
	 * @param   string	$aStock		Stock
	 * @return	string				Stock
	 */
	public function stock($aStock = null)
	{

		if (is_null($aStock)) {
			return $this->stock;
		} elseif ($aStock == 'RESET') {
			$this->stock = null;
		} else {
			$this->stock = $aStock;
		}
	}

	/**
	 * Getter for remise_percent
	 *
	 * @param	string	$aRemisePercent		Discount
	 * @return	string						Discount
	 */
	public function remisePercent($aRemisePercent = null)
	{

		if (is_null($aRemisePercent)) {
			return $this->remise_percent;
		} elseif ($aRemisePercent == 'RESET') {
			$this->remise_percent = null;
		} else {
			$this->remise_percent = $aRemisePercent;
		}
	}

	/**
	 * Getter for montant_remise
	 *
	 * @param	int		$aMontantRemise		Amount
	 * @return	string						Amount
	 */
	public function amountDiscount($aMontantRemise = null)
	{

		if (is_null($aMontantRemise)) {
			return $this->montant_remise;
		} elseif ($aMontantRemise == 'RESET') {
			$this->montant_remise = null;
		} else {
			$this->montant_remise = $aMontantRemise;
		}
	}

	/**
	 * Getter for prix
	 *
	 * @param	int		$aPrix		Price
	 * @return	string				Stock
	 */
	public function prix($aPrix = null)
	{

		if (is_null($aPrix)) {
			return $this->prix;
		} elseif ($aPrix == 'RESET') {
			$this->prix = null;
		} else {
			$this->prix = $aPrix;
		}
	}

	/**
	 * Getter for tva
	 *
	 * @param	int		$aTva		Vat
	 * @return	int					Vat
	 */
	public function tva($aTva = null)
	{
		if (is_null($aTva)) {
			return $this->tva;
		} elseif ($aTva == 'RESET') {
			$this->tva = null;
		} else {
			$this->tva = $aTva;
		}
	}

	/**
	 * Get num invoice
	 *
	 * @param string	$aNumFacture		Invoice ref
	 * @return	string						Invoice ref
	 */
	public function numInvoice($aNumFacture = null)
	{
		if (is_null($aNumFacture)) {
			return $this->num_facture;
		} elseif ($aNumFacture == 'RESET') {
			$this->num_facture = null;
		} else {
			$this->num_facture = $aNumFacture;
		}
	}

	/**
	 * Get payment mode
	 *
	 * @param	int		$aModeReglement		Payment mode
	 * @return	int							Payment mode
	 */
	public function getSetPaymentMode($aModeReglement = null)
	{

		if (is_null($aModeReglement)) {
			return $this->mode_reglement;
		} elseif ($aModeReglement == 'RESET') {
			$this->mode_reglement = null;
		} else {
			$this->mode_reglement = $aModeReglement;
		}
	}

	/**
	 * Get amount
	 *
	 * @param	int		$aMontantEncaisse		Amount
	 * @return	int								Amount
	 */
	public function amountCollected($aMontantEncaisse = null)
	{

		if (is_null($aMontantEncaisse)) {
			return $this->montant_encaisse;
		} elseif ($aMontantEncaisse == 'RESET') {
			$this->montant_encaisse = null;
		} else {
			$this->montant_encaisse = $aMontantEncaisse;
		}
	}

	/**
	 * Get amount
	 *
	 * @param	int			$aMontantRendu		Amount
	 * @return	int								Amount
	 */
	public function amountReturned($aMontantRendu = null)
	{

		if (is_null($aMontantRendu)) {
			return $this->montant_rendu;
		} elseif ($aMontantRendu == 'RESET') {
			$this->montant_rendu = null;
		} else {
			$this->montant_rendu = $aMontantRendu;
		}
	}

	/**
	 * Get payment date
	 *
	 * @param	integer		$aPaiementLe		Date
	 * @return	integer							Date
	 */
	public function paiementLe($aPaiementLe = null)
	{
		if (is_null($aPaiementLe)) {
			return $this->paiement_le;
		} elseif ($aPaiementLe == 'RESET') {
			$this->paiement_le = null;
		} else {
			$this->paiement_le = $aPaiementLe;
		}
	}

	/**
	 * Get total HT
	 *
	 * @param	int		$aTotalHt		Total amount
	 * @return	int						Total amount
	 */
	public function amountWithoutTax($aTotalHt = null)
	{
		if (is_null($aTotalHt)) {
			return $this->prix_total_ht;
		} elseif ($aTotalHt == 'RESET') {
			$this->prix_total_ht = null;
		} else {
			$this->prix_total_ht = $aTotalHt;
		}
	}

	/**
	 * Get amount vat
	 *
	 * @param	int		$aMontantTva	Amount vat
	 * @return	int						Amount vat
	 */
	public function amountVat($aMontantTva = null)
	{
		if (is_null($aMontantTva)) {
			return $this->montant_tva;
		} elseif ($aMontantTva == 'RESET') {
			$this->montant_tva = null;
		} else {
			$this->montant_tva = $aMontantTva;
		}
	}

	/**
	 * Get total TTC
	 *
	 * @param	int		$aTotalTtc		Amount ttc
	 * @return	int						Amount ttc
	 */
	public function amountWithTax($aTotalTtc = null)
	{
		if (is_null($aTotalTtc)) {
			return $this->prix_total_ttc;
		} elseif ($aTotalTtc == 'RESET') {
			$this->prix_total_ttc = null;
		} else {
			$this->prix_total_ttc = $aTotalTtc;
		}
	}
}