<?php
// +-------------------------------------------------+
// © 2002-2004 PMB Services / www.sigb.net pmb@sigb.net et contributeurs (voir www.sigb.net)
// +-------------------------------------------------+
// $Id: pret.class.php,v 1.35.2.1.2.2 2026/08/05 08:37:37 jparis Exp $

if (stristr($_SERVER['REQUEST_URI'], ".class.php")) die("no access");

global $class_path;
require_once($class_path."/expl.class.php");

// définition de la classe de gestion des 'prêts'

if ( ! defined( 'PRET_CLASS' ) ) {
  define( 'PRET_CLASS', 1 );

class pret {

/*---------------------------------------------------------------
		propriétés de la classe
  ---------------------------------------------------------------

	public $id_empr;				id emprunteur
	public $id_expl;				id exemplaire
	public $pret_date;				timestamp du début du pret
	public $pret_retour;			timestamp du retour prévu
	public $cb_expl;				code barre exemplaire
	public $type_doc;				type de doc de l'exemplaire
	public $owner				propriétaire de l'exemplaire
	public $date_pret_display;			date début du prêt en format affichable
	public $date_retour_display;		date retour prévu du prêt en format affichable
	public $resultat_action;			booléen de résultat de l'action
	public $display;				reste dispo pour l'instant

  ---------------------------------------------------------------
		pret($id_empr, $id_expl, $cb_expl, $pret_date, $pret_retour) : constructeur
			id_empr = id de l'emprunteur
			id_expl = id de l'exemplaire
			cb_expl = code barre de l'exemplaire, au choix avec l'id
			pret_date = date du début du pret
			pret_retour = date du retour prévu
  --------------------------------------------------------------*/
	public $id_empr;
	public $id_expl;
	public $pret_date;
	public $pret_retour;
	public $cb_expl;
	public $type_doc;
	public $statut_doc;
	public $date_pret_display;
	public $date_retour_display;
	public $retard;
	public $etat;
	public $display;
	protected $exemplaire;
	protected $emprunteur;
	public $owner;

	public function __construct( $id_empr, $id_expl, $cb_expl='', $pret_date='', $pret_retour='') {
	    $this->id_empr= intval($id_empr);
		$this->id_expl = intval($id_expl);
		$this->cb_expl = $cb_expl;
		$this->getData();
	}


	//	récupération infos du prêt
	public function getData() {
		global $msg;
		if(($this->id_expl==0) && ($this->cb_expl=="")) {
			// aucun identifiant. on retourne un tableau vide
			$this->id_empr = 0;
			$this->id_expl = 0;
			$this->pret_date = "";
			$this->pret_retour = "";
			$this->cb_expl = "";
			$this->type_doc="";
			$this->statut_doc="";
			$this->owner="";
			$this->date_pret_display="";
			$this->date_retour_display="";
			$this->etat=0;
			$this->display = $msg[4052];	
		} else {
			$sql_dates = " date_format(pret_date, '".$msg["format_date"]."') as aff_pret_date, ";
			$sql_dates .= " date_format(pret_retour, '".$msg["format_date"]."') as aff_pret_retour, ";
			$sql_dates .= " IF(pret_retour>=curdate(),0,1) as retard " ; 
			if ($this->id_expl!=0) $requete = "SELECT pret_idempr, pret_idexpl, pret_date, pret_retour, expl_cb, expl_typdoc, expl_statut, expl_owner, $sql_dates FROM pret, exemplaires WHERE pret_idexpl='".$this->id_expl."' and pret_idexpl=expl_id LIMIT 1 ";
				else $requete = "SELECT pret_idempr, pret_idexpl, pret_date, pret_retour, expl_cb, expl_typdoc, expl_statut, expl_owner, $sql_dates FROM pret, exemplaires WHERE expl_cb='".$this->cb_expl."' and pret_idexpl=expl_id LIMIT 1 ";
			$result = pmb_mysql_query($requete);
			if(pmb_mysql_num_rows($result)) {
				$temp = pmb_mysql_fetch_object($result);
				pmb_mysql_free_result($result);
				$this->id_empr = $temp->pret_idempr;
				$this->id_expl = $temp->pret_idexpl;
				$this->pret_date = $temp->pret_date;
				$this->pret_retour = $temp->pret_retour;
				$this->cb_expl = $temp->expl_cb;
				
				$requete = "select tdoc_libelle from docs_type where idtyp_doc='".$temp->expl_typdoc."' ";
				$result = pmb_mysql_query($requete);
				$typdoc = pmb_mysql_fetch_object($result);
				pmb_mysql_free_result($result);
				$this->type_doc = $typdoc->tdoc_libelle;
				
				$requete = "select statut_libelle from docs_statut where idstatut='".$temp->expl_statut."' ";
				$result = pmb_mysql_query($requete);
				$statdoc = pmb_mysql_fetch_object($result);
				pmb_mysql_free_result($result);
				$this->statut_doc = $statdoc->statut_libelle;
						
				$requete = "select lender_libelle from lenders where idlender='".$temp->expl_owner."' ";
				$result = pmb_mysql_query($requete);
				$lender = pmb_mysql_fetch_object($result);
				pmb_mysql_free_result($result);
				$this->owner = $lender->lender_libelle;
				
				$this->date_pret_display=$temp->aff_pret_date;
				$this->date_retour_display=$temp->aff_pret_retour;
				$this->retard=$temp->retard;
				$this->etat=1;
				$this->display = "Prêt existant";
			} else {
				// pas de prêt avec cette clé : on va aller chercher le expl_cb avec l'id ou l'inverse
				$long_maxi_cb_expl = pmb_mysql_field_len(pmb_mysql_query("SELECT expl_cb FROM exemplaires limit 1"),0);
				$this->cb_expl = rtrim(substr(pmb_preg_replace('/\[|\]/', '', rtrim(ltrim($this->cb_expl))),0,$long_maxi_cb_expl));
	
				if ($this->id_expl==0) {
					/* ici la recherche de l'id_expl */
					$query = "SELECT expl_id, expl_cb FROM exemplaires WHERE expl_cb='{$key_cb_expl}' LIMIT 1 ";
				} else {
					/* ici la recherche du cb à partir de l'id */
					$query = "SELECT expl_id, expl_cb FROM exemplaires WHERE expl_id='".$this->id_expl."' LIMIT 1 ";
				}
				$result = pmb_mysql_query($query) or die("can't SELECT exemplaires ".$query);
				if (pmb_mysql_num_rows($result)==0) { /* on n'a trouvé aucun exemplaire */
					$this->id_empr = 0;
					$this->id_expl = 0;
					$this->pret_date = "";
					$this->pret_retour = "";
					$this->cb_expl = "";
					$this->type_doc="";
					$this->statut_doc="";
					$this->owner = "";
					$this->date_pret_display="";
					$this->date_retour_display="";
					$this->etat=3;
					$this->display = "Exemplaire introuvable";	
				} else {
					$expl  = pmb_mysql_fetch_object($result);
					$this->id_expl = $expl->expl_id;
					$this->cb_expl = $expl->expl_cb;
					$this->pret_retour = "";
					$this->type_doc="";
					$this->statut_doc="";
					$this->owner = "";
					$this->date_pret_display="";
					$this->date_retour_display="";
					$this->etat=2;
					$this->display = "Prêt possible, inexistant avec cette clé";	
				}
			}
		}
	}

	// retour prêt
	public function retour($retour_effectif) {
		// check sur le type de  la variable passée en paramètre
		if ($retour_effectif=="") $retour_effectif=time();         
		
		/* on a tout ce qu'il faut, on peut supprimer le prêt */
		
		/* on va d'abord transférer tout ce que l'on connait dans la table des archives pour les stats */
		$query = "SELECT pret_date as debut, cpt_prolongation, empr_cp, empr_ville, empr_prof, empr_year, empr_categ, empr_codestat, empr_sexe, empr_statut, empr_location, type_abt, ";
		$query.= "expl_typdoc, expl_cote, expl_statut, expl_location, expl_codestat, expl_section, expl_owner FROM pret, empr, exemplaires WHERE pret_idexpl='".$this->id_expl."' and id_empr=pret_idempr and expl_id=pret_idexpl ";
		$res_stat = pmb_mysql_query($query) or die(pmb_mysql_error()."<br />can't SELECT pret & co for stats <br />".$query."<br />");
		$temp = pmb_mysql_fetch_object($res_stat);
		$query = "insert into pret_archive set ";
		$query.="arc_debut          ='".$temp->debut         ."', ";
		$query.="arc_fin            ='".date("Y-m-d",$retour_effectif) ."', ";
		$query.="arc_empr_cp        ='".addslashes($temp->empr_cp       )."', ";
		$query.="arc_empr_ville     ='".addslashes($temp->empr_ville    )."', ";
		$query.="arc_empr_prof      ='".addslashes($temp->empr_prof     )."', ";
		$query.="arc_empr_year      ='".$temp->empr_year     			."', ";
		$query.="arc_empr_categ     ='".$temp->empr_categ    			."', ";
		$query.="arc_empr_codestat  ='".$temp->empr_codestat 			."', ";
		$query.="arc_empr_sexe      ='".$temp->empr_sexe     			."', ";
		$query.= "arc_empr_statut	='".$temp->empr_statut   			."', ";
		$query.= "arc_empr_location	='".$temp->empr_location     		."', ";
		$query.= "arc_type_abt		='".$temp->type_abt     			."', ";
		$query.="arc_expl_typdoc    ='".$temp->expl_typdoc   			."', ";
		$query.="arc_expl_cote      ='".addslashes($temp->expl_cote     )."', ";
		$query.="arc_expl_statut    ='".$temp->expl_statut   			."', ";
		$query.="arc_expl_location  ='".$temp->expl_location 			."', ";
		$query.="arc_expl_section  ='".$temp->expl_section 				."', ";
		$query.="arc_expl_codestat  ='".$temp->expl_codestat 			."', ";
		$query.="arc_expl_owner     ='".$temp->expl_owner    			."', ";		
		$query.="arc_niveau_relance='".	$temp->niveau_relance 			."', ";
		$query.="arc_date_relance='".	$temp->date_relance				."', ";
		$query.="arc_printed='".		$temp->printed    				."', ";
		$query.="arc_cpt_prolongation='".$temp->cpt_prolongation		."' ";
		pmb_mysql_query($query) or die(pmb_mysql_error()."<br />can't insert in pret_archive <br />".$query."<br />");
		
		$query = "delete from pret where pret_idexpl = '".$this->id_expl."' ";
		pmb_mysql_query($query) or die("can't delete from pret ".$query."<br />".pmb_mysql_error());
		return 0;
	}

	// ---------------------------------------------------------------
	//		annulation() : annulation violente d'un prêt
	// ---------------------------------------------------------------
	public function annulation() {
		$query = "delete from pret where ";
		$query .= "pret_idexpl = '".$this->id_expl."' ";
		pmb_mysql_query($query) or die("can't delete from pret ".$query."<br />".pmb_mysql_error());
		return 0;
	}
	
	// ---------------------------------------------------------------
	//		prolongation() : prolongation d'un prêt
	// ---------------------------------------------------------------
	public function prolongation($nouvelle_date) {
		$query = "update pret set pret_retour = '".$nouvelle_date."', ";
		$query .= "niveau_relance = 0, date_relance = '0000-00-00', printed=0 ";
		$query .= "where pret_idexpl = '".$this->id_expl."' ";
		pmb_mysql_query($query) or die("can't update pret ".$query."<br />".pmb_mysql_error());
		return 0;
	}
	
	public function get_exemplaire() {
		if(!isset($this->exemplaire)) {
			$this->exemplaire = new exemplaire($this->cb_expl, $this->id_expl);
		}
		return $this->exemplaire;
	}
	
	public function get_emprunteur() {
	    if(!isset($this->emprunteur)) {
	        $this->emprunteur = new emprunteur($this->id_empr);
	    }
	    return $this->emprunteur;
	}
	
	public static function get_display_info($title='', $content='') {
		static::add_alert_sound_list('information');
		return "
			<hr />
			<div class='row'>
				<div class='colonne10'>
					<img src='".get_url_icon('info.png')."' />
				</div>
				<div class='colonne-suite'>
					".($title ? $title." :" : "")."
					<span class='erreur'>".$content."</span>
				</div>
			</div><br />";
	}
	
	public static function get_display_error($title='', $content='', $show_cancel=0, $show_loan=0, $suffix_link_loan='') {
		global $msg, $charset;
		global $id_empr;
		
		if(!$title && !$content) { 
		    return "<hr />
			<div class='row'>
			<div class='colonne10'></div>
			<div class='colonne-suite'><span class='erreur'></span></div>
			</div><br />";
		}
		static::add_alert_sound_list('critique');
		$display = "
			<hr />
			<div class='row'>
				<div class='colonne10'>
					<img src='".get_url_icon('error.png')."' />
				</div>
				<div class='colonne-suite'>
					".($title ? $title." :" : "")."
					<span class='erreur'>".$content."</span>";
		if($show_cancel) {
			$display .= "<input type='button' class='bouton' value='".htmlentities($msg[76], ENT_QUOTES, $charset)."' onClick=\"document.location='./circ.php?categ=pret&id_empr=$id_empr'\" />";
		}
		if($show_loan) {
			$display .= "&nbsp;<input type='button' class='bouton' value='".htmlentities($msg[389], ENT_QUOTES, $charset)."' onClick=\"document.location='./circ.php?categ=pret&id_empr=".$id_empr.$suffix_link_loan."'\" />";
		}
		$display .= "</div>
			</div><br />";
		return $display;
	}

	public static function get_display_custom_fields($id_empr,$id_expl) {
		$p_perso=new pret_parametres_perso("pret");
		if(!$p_perso->no_special_fields) {
			$query_custom = "select pret_arc_id from pret
				where pret_idempr='".$id_empr."' and pret_idexpl='".$id_expl."'";
			$result_custom = pmb_mysql_query($query_custom);
			if ($result_custom && pmb_mysql_result($result_custom,0,0)) {
				$pret_arc_id = pmb_mysql_result($result_custom,0,0);
				$perso_ = $p_perso->show_fields($pret_arc_id);
				$perso="";
				if (count($perso_["FIELDS"])) {
					for ($i=0; $i<count($perso_["FIELDS"]); $i++) {
						$perso .= "<div class='row'>".$perso_["FIELDS"][$i]["TITRE"];
						$perso .= $perso_["FIELDS"][$i]["AFF"]."</div>";
					}
					$perso."<br />";
				}
				return $perso;
			}
		}
	}
	
	public static function get_display_antivol($id_expl) {
		global $pmb_antivol;
		
		$script_magnetique="
		<script language='javascript' type='text/javascript'>
		var requete = null;
		function creerRequette(){
			if(window.XMLHttpRequest) // Firefox
				requete = new XMLHttpRequest();
			else if(window.ActiveXObject) // Internet Explorer
		  		requete = new ActiveXObject('Microsoft.XMLHTTP');
			else { // XMLHttpRequest non supporté par le navigateur
		   		alert('Votre navigateur ne supporte pas les objets XMLHTTPRequest...');
		    	return;
			}
		}
		function magnetise(commande){
			creerRequette();
			if(typeof netscape !== 'undefined') {
				if(netscape.security.PrivilegeManager)netscape.security.PrivilegeManager.enablePrivilege('UniversalBrowserRead');
			}
			requete.open('GET', 'http://localhost:30000/?send_value='+commande+'&command=Send', false);
			requete.send(null);
			if(requete.readyState != 4) alert('Requête antivol non effectuée !');
		}";
		
		if($pmb_antivol>0) {
			$rqt = "SELECT type_antivol FROM exemplaires WHERE expl_id='".$id_expl."' ";
			$result = pmb_mysql_query($rqt);
			$expl = pmb_mysql_fetch_object($result);
			$type_antivol =$expl->type_antivol;
			if($type_antivol ==1)// c'est un support non magnétique (livre, revue...)
				return "$script_magnetique"."magnetise('DDD');</script>";
			if($type_antivol ==2)//c'est un support magnétique (cassette)
				return "$script_magnetique"."magnetise('SSS');</script>";
		}
		return "";
	}
	
	public static function add_alert_sound_list($sound) {
		global $pmb_play_pret_sound, $alert_sound_list;

		// 2 : seuls les niveaux d'erreur/alerte sonnent
		if($pmb_play_pret_sound == 2 && $sound == 'information') {
			return;
		}
		if($pmb_play_pret_sound) {
			$alert_sound_list[] = $sound;
		}
	}
	
	public static function extendLoan($id_empr, $expl_id, $date_retour){
        global $msg;
	    
	    $query = "SELECT cpt_prolongation FROM pret WHERE pret_idempr = $id_empr AND pret_idexpl = $expl_id";
	    $r = pmb_mysql_query($query);
	    if (!pmb_mysql_num_rows($r)){
	        return ["status"=>false, "message"=>$msg["pnb_extend_loan_fail"], "infos"=>"infos"];
	    }
	    
	    $result = pmb_mysql_fetch_array($r);
	    $new_cpt_prolongation = intval($result['cpt_prolongation']) + 1;
	    
	    $query = "UPDATE pret SET pret_retour = '$date_retour', cpt_prolongation = $new_cpt_prolongation WHERE pret_idempr = $id_empr AND pret_idexpl = $expl_id";
	    pmb_mysql_query($query);
	    
	    return true;
	}
	
	public static function is_last_late($id_empr, $expl_id) {
		$id_empr = intval($id_empr);
		$is_last_loan_late = false;
		$loans_late = emprunteur::get_loans_late($id_empr);
		if(!empty($loans_late[$expl_id])) {
			unset($loans_late[$expl_id]);
		}
		if(empty($loans_late)) {
			$is_last_loan_late = true;
		}
		return $is_last_loan_late;
	}
	
	public static function update_blocage($id_empr, $id_expl, $ndays, $loc_calendar = 0) {
		global $msg;
		global $pmb_blocage_max, $selfservice_retour_blocage_msg;
		
		$id_empr = intval($id_empr);
		$id_expl = intval($id_expl);
		$ndays = intval($ndays);
		
		$informations = array();
		//Le lecteur est-il déjà bloqué ?
		$date_fin_blocage_empr = pmb_mysql_result(pmb_mysql_query("select date_fin_blocage from empr where id_empr='".$id_empr."'"),0,0);
		//Calcul de la date de fin
		if ($pmb_blocage_max!=-1) {
			$date_fin=calendar::add_days(date("d"),date("m"),date("Y"),$ndays,$loc_calendar);
		} else {
			$date_fin=calendar::add_days(date("d"),date("m"),date("Y"),0,$loc_calendar);
		}
		if ($pmb_blocage_max==-1 && static::is_last_late($id_empr, $id_expl)) {
			if($date_fin_blocage_empr != '0000-00-00') {
				//on lève le blocage
				//Mise à jour
			    emprunteur::update_date_fin_blocage($id_empr, '0000-00-00');
				$informations['message'] = $msg["blocage_retard_pret_is_up"];
				static::add_alert_sound_list('information');
			} else {
				//on ne bloque pas car il s'agit du dernier retard
				$informations['message'] = $msg["blocage_retard_pret_last_late"];
				static::add_alert_sound_list('information');
			}
		} else {
			if ($date_fin > $date_fin_blocage_empr) {
				//Mise à jour
			    emprunteur::update_date_fin_blocage($id_empr, $date_fin);
				$informations['message'] = sprintf($msg["blocage_retard_pret"],formatdate($date_fin));
				$informations['custom_message'] = sprintf($selfservice_retour_blocage_msg,formatdate($date_fin));
				static::add_alert_sound_list('critique');
			} else {
				$informations['message'] = sprintf($msg["blocage_already_retard_pret"],formatdate($date_fin_blocage_empr));
				$informations['custom_message'] = sprintf($selfservice_retour_blocage_msg,formatdate($date_fin_blocage_empr));
				static::add_alert_sound_list('critique');
			}
		}
		return $informations;
	}
	
	public function get_id() {
	    return $this->id_expl;
	}
} # fin de définition de la classe pret

} # fin de délaration