<?php
/**
 * $Id: phpquote.class,v 1.10 2003/04/02 12:16:54 courou Exp $
 *
 * Author     : tobozo&#64;madchat.org
 * Modified   : courou&#64;users.sourceforge.net
 * Website    : http://allreponse.ath.cx
 *
 * Support    : http://sourceforge.net/projects/myphpmoney/
 * CVS        : http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/myphpmoney/
 *
 * PHPQUOTE
 *
 * Copyright 2001, Stephen C. Cook and Gear21.Inc.
 * See Standard GNU GPL License for Details.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * The Latest Version of PHPQUOTE can be downloaded from:
 * http://www.gear21.com/phpquote/
 *
 * Contact:  scook&#64;gear21.com
 * TODO: Multiple Quotes Section, More than basic INFO, error & timeout checking.
 */

$BasicPage="http://finance.yahoo.com/q?s=<TICKER_SYMBOLS>&d=v1&o=t";
$DetailedPage="http://finance.yahoo.com/q?s=<TICKER_SYMBOLS>&d=v1&o=t";

########################################################
## Class Definitions                                  ##
########################################################

class php_quote {
  var $Symbol;
  var $Last;
  var $Price;
  var $Change;
  var $PercChange;
  var $Volume;

  // Ajout courou du 27/03/2003
  // Afin d'eviter les WARNING php_hostconnect
  function connect_quote($symb) {
   Global $nb_err,$tools,$_VAR,$_MPM;
    $r='';
    $err = sprintf($_VAR['JS_PHP_HOSTCONNECT'],$_MPM['name'],$_VAR['MESS_CALENDAR_VERIF']);
    if (defined('PHP_HOSTCONNECT') && PHP_HOSTCONNECT == 1) {
      $r = $err;
    $f=false;
    }
    else if (!$tools->verif_connect()) {
      if (defined('PHP_HOSTCONNECT') && PHP_HOSTCONNECT == 1) {
         $r = $err;
      } else {
         $r = $_VAR['JS_PARSER_XML_6'];
      }
    $f=false;
    } else {
    $f=true;
    }
    if ($r != '' && $nb_err++ == '') XHTML_DisplayJs($r);
  return $f;
  }


  function get_single_quote($symb) {
    $nb_err=0;
    $QuotePage="http://finance.yahoo.com/q?s=<TICKER_SYMBOLS>&d=v1&o=t";
    # Prepare Symbol (might break this out into it's own function
    # to add more checking and security.
    $symb=strip_tags($symb);
    $symb=substr($symb,0,10);  #Change to 7 to allow canadian stocks
    $symb=trim($symb);
    #Modification courou du 22/01/2003
    $symb=str_replace("(","",$symb);
    #$symb=urlencode($symb);
    $yf_page=eregi_replace("<TICKER_SYMBOLS>",$symb,$QuotePage);

    #NEED TO CHECK FOR CONNECTION SUCCESS AND THEN VALID SYMBOL
    #If your Warning setting is set to visible, this will display
    # a warning if the file isn't available (404 or 403).
    #Check your php.ini or php3.ini file.

    if ($this->connect_quote($symb)) $f=@file($yf_page); else $f=false;
    if($f) {
      $x=0;
      $f_size=count($f);
      $tsymb=ereg_replace("\^","\\^",$symb);

      #Modification courou du 22/01/2003
      while( !eregi("No Symbol Entered",$f[$x])
         && !eregi(">$tsymb<",$f[$x]) && $x <= $f_size ) {
        $x++;
        }
      $qline=strip_tags($f[$x]);
      $t=explode("Chart",$qline);
      $single_space=ereg_replace(" +"," ",$t[0]);
      # If the above regex doesn't work, try:
      # $single_space=ereg_replace("[[:space:]]+"," ",$t[0]);

      #Modification courou du 22/01/2003
      #Now check for Unknown Symbol
      if(eregi("No Symbol Entered",$single_space) || eregi("No such ticker symbol",$single_space)) {
        $this->Symbol=$symb;
        $this->Last="Unkown Symbol";
        $this->Price="Unkown Symbol";
        $this->Change="N/A";
        $this->PercChange="N/A";
        $this->Volume="N/A";
      return(0);
      }
      else {
        $qa=explode(" ",$single_space);
        $this->Symbol=$qa[0];

        #Now, because they use a date after hours, we have to determine
        #If it's a time, or a date...
        $tc=substr($qa[1],0,1);
           if (ereg("[0-9]",$tc)) {
             $this->Last=$qa[1];
             $x=2;
           } else {
             $this->Last="$qa[1] $qa[2]";
             $x=3;
           }
        $this->Price=$qa[$x]; $x++;
        $this->Change=$qa[$x]; $x++;
        $this->PercChange=$qa[$x]; $x++;
        $this->Volume=$qa[$x]; $x++;
       return(1);
       }
    }
    else {
      $this->Symbol=$symb;
      $this->Last="Unavailable";
      $this->Price="Unavailable";
      $this->Change="N/A";
      $this->PercChange="N/A";
      $this->Volume="N/A";
      return(0);
      }
    }
  } ## end class


// class mpm_quote by tobozo (extended cache possibility and db handle)
class MPM_quote extends php_quote {

  var $Date;
  var $Delay = 1200; ## 20 minutes

  function MPM_quote() {
   global $_MPM,$db;
    $this->db= & $db;
    if(!is_object($db)) die ("no connexion");
    ## purger la base des entres obsoletes
  $this->db->query("DELETE FROM ".$_MPM['table'][7]." WHERE (TIME + $this->Delay)<".time());
  }

  function get_quote($symb) {
    if(empty($symb)) die ("no symbol");
    if($this->load($symb)) { // is in the db
      if($this->is_up_to_date($symb)) { // is up to date
        ## echo "is up to date ";
        return 1;
      }
      else { ## is not up to date, needs reload and update
        ## echo " is not up to date, needs reload and update ";
        $this->load_quote_from_yahoo($symb);
        $this->update_quote();
        return 0;
      }
    }
    else { ## is not in the db, needs insert
      ## echo " is not in the db, needs insert ";
      $this->load_quote_from_yahoo($symb);
      $this->insert_quote();
      return -1;
      }
    }

  function load($symb) {
   Global $_MPM;
    $query = "SELECT * FROM ".$_MPM['table'][7]." WHERE QUOTENAME=\"".trim($symb)."\"";
    $this->db->query($query);
      if($this->db->num_rows()>0) {
         ## echo " is in the db, load it up ";
         $this->db->next_record();
         $this->load_quote_from_sql();
         $this->Symbol = $symb;
      return 1;
      }
      else {
         ## echo " is not in the db, get it from yahoo ";
      return 0;
      }
   }

  function load_quote_from_sql() {
    $quote_ary = explode(";", $this->db->f('CACHE'));
    $this->Last       = $quote_ary[0];
    $this->Price      = $quote_ary[1];
    $this->Change     = $quote_ary[2];
    $this->PercChange = $quote_ary[3];
    $this->Volume     = $quote_ary[4];
    $this->Date       = $this->db->f("TIME");
  return 1;
  }

  function load_quote_from_yahoo($symb) {
    $this->Date = time();
  return $this->get_single_quote($symb);
  }

  function is_up_to_date($symb) {
    return (($this->Date + $this->Delay) > time()) ;
  }

  function update_quote() {
   Global $_MPM;
     $query = "UPDATE ".$_MPM['table'][7]." SET CACHE = '$this->Last;$this->Price;$this->Change;$this->PercChange;$this->Volume'
               WHERE QUOTENAME = '$this->Symbol'";
  $this->db->query($query);
  }

  function insert_quote() {
   Global $_MPM;
     if(ltrim(chop($this->Symbol!=""))) {
       $query = "INSERT INTO ".$_MPM['table'][7]." (QUOTENAME, TIME, CACHE)
                 VALUES ('$this->Symbol',".time().",'$this->Last;$this->Price;$this->Change;$this->PercChange;$this->Volume')";
     $this->db->query($query);
     }
  }
} ## end extended class