<?php
/*
 *   This file is part of PhpCompta.
 *
 *   PhpCompta 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 2 of the License, or
 *   (at your option) any later version.
 *
 *   PhpCompta 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 PhpCompta; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
/* $Revision$ */
// Copyright Author Dany De Bontridder ddebontridder@yahoo.fr
/*! \file
 * \brief Manage the account
 */
/*!
 * \brief Manage the account from the table jrn, jrnx or tmp_pcmn
 */
require_once("class_ihidden.php");
require_once ('class_database.php');
require_once ('class_dossier.php');

class Acc_Account_Ledger
{
    var $db;          /*!< $db database connection */
    var $id;          /*!< $id poste_id (pcm_val)*/
    var $label;       /*!< $label label of the poste */
    var $parent;      /*!< $parent parent account */
    var $row;         /*!< $row double array see get_row */
    var $tot_deb;    /*!< value set by  get_row */
    var $tot_cred;    /*!< value by  get_row */
    function __construct ($p_cn,$p_id)
    {
        $this->db=$p_cn;
        $this->id=$p_id;
    }
    /**
     *@brief get the row thanks the resource
     *@return double array (j_date,deb_montant,cred_montant,description,jrn_name,j_debit,jr_internal)
     *         (tot_deb,tot_credit)
     */
    private function get_row_sql($Res)
    {
        $array=array();
        $tot_cred=0.0;
        $tot_deb=0.0;
        $Max=Database::num_row($Res);
        if ( $Max == 0 ) return null;
        for ($i=0;$i<$Max;$i++)
        {
            $array[]=Database::fetch_array($Res,$i);
            if ($array[$i]['j_debit']=='t')
            {
                $tot_deb+=$array[$i]['deb_montant'] ;
            }
            else
            {
                $tot_cred+=$array[$i]['cred_montant'] ;
            }
        }
        $this->row=$array;
        $this->tot_deb=$tot_deb;
        $this->tot_cred=$tot_cred;
        return array($array,$tot_deb,$tot_cred);

    }
    /*!
     * \brief  Get data for accounting entry between 2 periode
     *
     * \param  $p_from periode from
     * \param  $p_to   end periode
     * \return double array (j_date,deb_montant,cred_montant,description,jrn_name,j_debit,jr_internal)
     *         (tot_deb,tot_credit
     *
     */
    function get_row($p_from,$p_to)
    {
        $periode=sql_filter_per($this->db,$p_from,$p_to,'p_id','jr_tech_per');

        $Res=$this->db->exec_sql("select distinct j_id,jr_id,to_char(j_date,'DD.MM.YYYY') as j_date_fmt,j_date,".
                                 "case when j_debit='t' then j_montant else 0 end as deb_montant,".
                                 "case when j_debit='f' then j_montant else 0 end as cred_montant,".
                                 " jr_comment as description,jrn_def_name as jrn_name,".
                                 "j_debit, jr_internal,jr_pj_number ".
                                 " from jrnx left join jrn_def on jrn_def_id=j_jrn_def ".
                                 " left join jrn on jr_grpt_id=j_grpt".
                                 " where j_poste=".$this->id." and ".$periode.
                                 " order by j_date");
        return $this->get_row_sql($Res);
    }
    /*!
     * \brief  Get data for accounting entry between 2 date
     *
     * \param  $p_from date from
     * \param  $p_to   end date
     *\note the data are filtered by the access of the current user
     * \return double array (j_date,deb_montant,cred_montant,description,jrn_name,j_debit,jr_internal)
     *         (tot_deb,tot_credit
     *
     */
    function get_row_date($p_from,$p_to,$let=0)
    {
        $user=new User($this->db);
        $filter_sql=$user->get_ledger_sql('ALL',3);
        $sql_let='';
        switch ($let)
        {
        case 0:
                break;
        case 1:
            $sql_let=' and j_id in (select j_id from letter_cred union select j_id from letter_deb)';
            break;
        case '2':
            $sql_let=' and j_id not in (select j_id from letter_cred union select j_id from letter_deb) ';
            break;
        }
        $Res=$this->db->exec_sql("select  jr_id,to_char(j_date,'DD.MM.YYYY') as j_date_fmt,j_date,".
                                 "case when j_debit='t' then j_montant else 0 end as deb_montant,".
                                 "case when j_debit='f' then j_montant else 0 end as cred_montant,".
                                 " jr_comment as description,jrn_def_name as jrn_name,".
                                 "j_debit, jr_internal,jr_pj_number,coalesce(comptaproc.get_letter_jnt(j_id),-1) as letter ".
                                 ",pcm_lib ".
                                 " from jrnx left join jrn_def on (jrn_def_id=j_jrn_def )".
                                 " left join jrn on (jr_grpt_id=j_grpt)".
                                 " left join tmp_pcmn on (j_poste=pcm_val)".
                                 " where j_poste=$1 and ".
                                 " ( to_date($2,'DD.MM.YYYY') <= j_date and ".
                                 "   to_date($3,'DD.MM.YYYY') >= j_date )".
                                 " and $filter_sql  $sql_let ".
                                 " order by j_date,substring(jr_pj_number,'\\\\d+$') asc",array($this->id,$p_from,$p_to));
        return $this->get_row_sql($Res);
    }


    /*!\brief Return the name of a account
     *        it doesn't change any data member
     * \return string with the pcm_lib
     */
    function get_name()
    {
        $ret=$this->db->exec_sql(
                 "select pcm_lib from tmp_pcmn where
                 pcm_val=$1",array($this->id));
        if ( Database::num_row($ret) != 0)
        {
            $r=Database::fetch_array($ret);
            $this->name=$r['pcm_lib'];
        }
        else
        {
            $this->name="Poste inconnu";
        }
        return $this->name;
    }
    /*!\brief check if the poste exist in the tmp_pcmn
     *\return the number of line (normally 1 or 0)
     */
    function do_exist()
    {
        $sql="select pcm_val from tmp_pcmn where pcm_val= $1";
        $ret=$this->db->exec_sql($sql,array($this->id));
        return Database::num_row($ret) ;
    }
    /*!\brief Get all the value for this object from the database
     *        the data member are set
     * \return false if this account doesn't exist otherwise true
     */
    function load()
    {
        $ret=$this->db->exec_sql("select pcm_lib,pcm_val_parent from
                                 tmp_pcmn where pcm_val=$1",array($this->id));
        $r=Database::fetch_all($ret);

        if ( ! $r ) return false;
        $this->label=$r[0]['pcm_lib'];
        $this->parent=$r[0]['pcm_val_parent'];
        return true;

    }
    /*!\brief Get all the value for this object from the database
     *        the data member are set
     * \return false if this account doesn't exist otherwise true
     */
    function get()
    {
        echo "OBSOLETE Acc_Account_Ledger->get(), a remplacer par Acc_Account_Ledger->load()";
        return $this->load();
    }

    /*!
     * \brief  give the balance of an account
     *
     * \return
     *      balance of the account
     *
     */
    function get_solde($p_cond=" true ")
    {
        $Res=$this->db->exec_sql("select sum(deb) as sum_deb, sum(cred) as sum_cred from
                                 ( select j_poste,
                                 case when j_debit='t' then j_montant else 0 end as deb,
                                 case when j_debit='f' then j_montant else 0 end as cred
                                 from jrnx join tmp_pcmn on j_poste=pcm_val
                                 where
                                 j_poste::text like ('$this->id'::text) and
                                 $p_cond
                                 ) as m  ");
        $Max=Database::num_row($Res);
        if ($Max==0) return 0;
        $r=Database::fetch_array($Res,0);

        return abs($r['sum_deb']-$r['sum_cred']);
    }
    /*!
     * \brief   give the balance of an account
     * \return
     *      balance of the account
     *
     */
    function get_solde_detail($p_cond="")
    {

        if ( $p_cond != "") $p_cond=" and ".$p_cond;
        $sql="select sum(deb) as sum_deb, sum(cred) as sum_cred from
             ( select j_poste,
             case when j_debit='t' then j_montant else 0 end as deb,
             case when j_debit='f' then j_montant else 0 end as cred
             from jrnx
             where
             j_poste::text like ('$this->id'::text)
             $p_cond
             ) as m  ";

        $Res=$this->db->exec_sql($sql);
        $Max=Database::num_row($Res);

        if ($Max==0)
        {
            return array('debit'=>0,
                         'credit'=>0,
                         'solde'=>0)     ;
        }
        $r=Database::fetch_array($Res,0);
// if p_start is < p_end the query returns null to avoid any problem
// we set it to 0
        if ($r['sum_deb']=='')
            $r['sum_deb']=0.0;
        if ($r['sum_cred']=='')
            $r['sum_cred']=0.0;

        return array('debit'=>$r['sum_deb'],
                     'credit'=>$r['sum_cred'],
                     'solde'=>abs($r['sum_deb']-$r['sum_cred']));
    }
    /*!
     * \brief isTva tell is a poste is used for VAT
     * \param none
     *
     *
     * \return 1 is Yes otherwise 0
     */
    function isTVA()
    {
        // Load TVA array
        $a_TVA=$this->db->get_array('select tva_poste
                                    from tva_rate');
        foreach ( $a_TVA as $line_tva)
        {
            if ( $line_tva['tva_poste']  == '' )
                continue;
            list($tva_deb,$tva_cred)=explode(',',$line_tva['tva_poste']);
            if ( $this->id == $tva_deb ||
                    $this->id == $tva_cred )
            {
                return 1;
            }
        }
        return 0;

    }
    /*!
     * \brief HtmlTable, display a HTML of a poste for the asked period
     * \param $p_array array for filter 
     * \param $let lettering of operation 0
     * \return -1 if nothing is found otherwise 0
     */
    function HtmlTable($p_array=null,$let=0 )
    {
        if ( $p_array==null)$p_array=$_REQUEST;
        $this->get_name();
        list($array,$tot_deb,$tot_cred)=$this->get_row_date( $p_array['from_periode'],
                                        $p_array['to_periode'],$let
                                                           );

        if ( count($this->row ) == 0 )
            return -1;

        $rep="";

        echo '<h2 class="info">'.$this->id." ".$this->name.'</h2>';
        echo "<TABLE class=\"resultfooter\" style=\"border-collapse:separate;width:100%;border-spacing:5px\">";
        echo '<tbody>';
        echo "<TR>".
        "<TH> Date</TH>".
        "<TH> n° de pièce </TH>".
        "<TH> Code interne </TH>".
        "<TH> Description </TH>".
        "<TH style=\"text-align:right\"> D&eacute;bit  </TH>".
        "<TH style=\"text-align:right\"> Cr&eacute;dit </TH>".
        th('Prog.','style="text-align:right"').
        th('Let.','style="text-align:right"');
        "</TR>"
        ;
        $progress=0;
	bcscale(2);
        foreach ( $this->row as $op )
        {
            $vw_operation=sprintf('<A class="detail" style="text-decoration:underline" HREF="javascript:modifyOperation(\'%s\',\'%s\')" >%s</A>',
                                  $op['jr_id'], dossier::id(), $op['jr_internal']);
            $let='';
            if ( $op['letter'] !=-1) $let=$op['letter'];
	    $tmp_diff=bcsub($op['deb_montant'],$op['cred_montant']);
            $progress=bcadd($progress,$tmp_diff);

            echo "<TR>".
            "<TD>".format_date($op['j_date'])."</TD>".
	      td(h($op['jr_pj_number'])).
            "<TD>".$vw_operation."</TD>".
            "<TD>".h($op['description'])."</TD>".
            "<TD style=\"text-align:right\">".nbm($op['deb_montant'])."</TD>".
	      "<TD style=\"text-align:right\">".nbm($op['cred_montant'])."</TD>".
	      td(nbm(abs($progress)),'style="text-align:right"').

            td($let,' style="color:red;text-align:right"').
            "</TR>";

        }
        echo '<tfoot>';
        $solde_type=($tot_deb>$tot_cred)?"solde débiteur":"solde créditeur";
        $diff=round(abs($tot_deb-$tot_cred),2);
        echo "<TR style=\"font-weight:bold\">".
        "<TD >Totaux</TD><td></td>".
        "<TD ></TD>".
        "<TD></TD>".
	  "<TD  style=\"text-align:right\">".nbm($tot_deb)."</TD>".
	  "<TD  style=\"text-align:right\">".nbm($tot_cred)."</TD>".
        "</TR>";
	echo   "<tr><TD>$solde_type</TD><td></td>".
	  "<TD style=\"text-align:right\">".nbm($diff)."</TD>".
        "</TR>";
        echo '</tfoot>';
        echo '</tbody>';

        echo "</table>";

        return;
    }

    /*!
     * \brief Display HTML Table Header (button)
     *
     * \return none
     */
    static function HtmlTableHeader($actiontarget="poste")
    {
        $hid=new IHidden();
        echo '<div class="noprint">';
        echo "<table >";
        echo '<TR>';
        $str_ople=(isset($_REQUEST['ople']))?HtmlInput::hidden('ople',$_REQUEST['ople']):'';
        echo '<TD><form method="GET" ACTION="">'.
        dossier::hidden().
        HtmlInput::submit('bt_other',"Autre poste").
        $hid->input("type","poste").$hid->input('p_action','impress')."</form></TD>";

        echo '<TD><form method="GET" ACTION="'.$actiontarget.'_pdf.php">'.
        dossier::hidden().
        HtmlInput::submit('bt_pdf',"Export PDF").
        $hid->input("type","poste").$str_ople.
        $hid->input('p_action','impress').
        $hid->input("from_periode",$_REQUEST['from_periode']).
        $hid->input("to_periode",$_REQUEST['to_periode']);

        if (isset($_REQUEST['poste_id'])) echo $hid->input("poste_id",$_REQUEST['poste_id']);

        if (isset($_REQUEST['poste_fille']))
            echo $hid->input('poste_fille','on');
        if (isset($_REQUEST['oper_detail']))
            echo $hid->input('oper_detail','on');

        echo "</form></TD>";

        echo '<TD><form method="GET" ACTION="'.$actiontarget.'_csv.php">'.
        dossier::hidden().
        HtmlInput::submit('bt_csv',"Export CSV").
        $hid->input("type","poste").$str_ople.
        $hid->input('p_action','impress').
        $hid->input("from_periode",$_REQUEST['from_periode']).
        $hid->input("to_periode",$_REQUEST['to_periode']);
        if (isset($_REQUEST['poste_fille']))
            echo $hid->input('poste_fille','on');
        if (isset($_REQUEST['oper_detail']))
            echo $hid->input('oper_detail','on');
        if (isset($_REQUEST['poste_id'])) echo $hid->input("poste_id",$_REQUEST['poste_id']);

        echo "</form></TD>";
        echo "</table>";
        echo '</div>';

    }
    /*!
     * \brief verify that the poste belong to a ledger
     *
     * \return 0 ok,  -1 no
     */
    function belong_ledger($p_jrn)
    {
        $filter=$this->db->get_value("select jrn_def_class_cred from jrn_def where jrn_def_id=$p_jrn");
        if ( trim ($filter) == '')
            return 0;

        $valid_cred=explode(" ",$filter);
        $sql="select count(*) as poste from tmp_pcmn where ";
        // Creation query
        $or="";
        $SqlFilter="";
        foreach ( $valid_cred as $item_cred)
        {
            if ( strlen (trim($item_cred)))
            {
                if ( strstr($item_cred,"*") == true )
                {
                    $item_cred=strtr($item_cred,"*","%");
                    $SqlItem="$or pcm_val::text like '$item_cred'";
                    $or="  or ";
                }
                else
                {
                    $SqlItem="$or pcm_val::text = '$item_cred' ";
                    $or="  or ";
                }
                $SqlFilter=$SqlFilter.$SqlItem;
            }
        }//foreach
        $sql.=$SqlFilter.' and pcm_val='.$this->id;
        $max=$this->db->get_value($sql);
        if ($max > 0 )
            return 0;
        else
            return -1;
    }
    /*!\brief With the id of the ledger, get the col jrn_def_class_deb
     *\param $p_jrn jrn_id
     *\return array of value, or an empty array if nothing is found
     *\note
     *\see
     */
    function get_account_ledger($p_jrn)
    {
        $l=new Acc_Ledger($this->db,$p_jrn);
        $row=$l->get_propertie();
        if ( strlen(trim($row['jrn_def_class_deb'])) == 0 ) return array();
        $valid_account=explode(" ",$row['jrn_def_class_deb']);
        return $valid_account;
    }
    /*!\brief build a sql statement thanks a array found with get_account_ledger
     *
     *\param $p_jrn jrn_id
     *\return an emty string if nothing is found or a valid SQL statement like
    \code
    pcm_val like ... or pcm_val like ...
    \endcode
     *\note
     *\see get_account_ledger
     */
    function build_sql_account($p_jrn)
    {
        $array=$this->get_account_ledger($p_jrn);
        if ( empty($array) ) return "";
        $sql="";
        foreach ( $array as $item_cred)
        {
            if ( strlen (trim($item_cred))>0 )
            {
                if ( strstr($item_cred,"*") == true )
                {
                    $item_cred=strtr($item_cred,"*","%");
                    $sql_tmp=" pcm_val::text like '$item_cred' or";
                }
                else
                {
                    $sql_tmp=" pcm_val::text = '$item_cred' or";
                }
                $sql.=$sql_tmp;
            }
        }//foreach
        /* remove the last or */
        $sql=substr($sql,0,strlen($sql)-2);
        return $sql;
    }
    static function test_me()
    {
        $cn=new Database(dossier::id());
        $a=new Acc_Account_Ledger($cn,550);
        echo ' Journal 4 '.$a->belong_ledger(4);

    }
}