<?php
/**********************************************************************
    Copyright (C) FrontAccounting, LLC.
	Released under the terms of the GNU General Public License, GPL, 
	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 License here <http://www.gnu.org/licenses/gpl-3.0.html>.
***********************************************************************/

function add_supplier($supp_name, $supp_ref, $address, $supp_address, $phone, $phone2, $fax, $gst_no, $email,
	$website, $contact, $supp_account_no, $bank_account, $credit_limit, $dimension_id, $dimension2_id, 
	$curr_code, $payment_terms, $payable_account, $purchase_account, $payment_discount_account, 
	$notes, $tax_group_id, $rep_lang)
{
	$sql = "INSERT INTO ".TB_PREF."suppliers (supp_name, supp_ref, address, supp_address, phone, phone2, fax, gst_no, email, website,
		contact, supp_account_no, bank_account, credit_limit, dimension_id, dimension2_id, curr_code,
		payment_terms, payable_account, purchase_account, payment_discount_account, notes, tax_group_id, rep_lang)
		VALUES (".db_escape($_POST['supp_name']). ", "
		.db_escape($supp_ref). ", "
		.db_escape($address) . ", "
		.db_escape($supp_address) . ", "
		.db_escape($phone). ", "
		.db_escape($phone2). ", "
		.db_escape($fax). ", "
		.db_escape($gst_no). ", "
		.db_escape($email). ", "
		.db_escape($website). ", "
		.db_escape($contact). ", "
		.db_escape($supp_account_no). ", "
		.db_escape($bank_account). ", "
		.$credit_limit. ", "
		.db_escape($dimension_id). ", "
		.db_escape($dimension2_id). ", "
		.db_escape($curr_code). ", "
		.db_escape($payment_terms). ", "
		.db_escape($payable_account). ", "
		.db_escape($purchase_account). ", "
		.db_escape($payment_discount_account). ", "
		.db_escape($notes). ", "
		.db_escape($tax_group_id). ", "
		.db_escape($rep_lang ? $rep_lang : null, true). ")";

	db_query($sql,"The supplier could not be added");
}

function update_supplier($supplier_id, $supp_name, $supp_ref, $address, $supp_address, $phone, $phone2, $fax, $gst_no, 
	$email,	$website, $contact, $supp_account_no, $bank_account, $credit_limit, $dimension_id, $dimension2_id, 
	$curr_code, $payment_terms, $payable_account, $purchase_account, $payment_discount_account, 
	$notes, $tax_group_id, $rep_lang)
{
	$sql = "UPDATE ".TB_PREF."suppliers SET supp_name=".db_escape($supp_name) . ",
		supp_ref=".db_escape($supp_ref) . ",
		address=".db_escape($address) . ",
		supp_address=".db_escape($supp_address) . ",
		phone=".db_escape($phone) . ",
		phone2=".db_escape($phone2) . ",
		fax=".db_escape($fax) . ",
		gst_no=".db_escape($gst_no) . ",
		email=".db_escape($email) . ",
		website=".db_escape($website) . ",
		contact=".db_escape($contact) . ",
		supp_account_no=".db_escape($supp_account_no) . ",
		bank_account=".db_escape($bank_account) . ",
		credit_limit=".$credit_limit . ",
		dimension_id=".db_escape($dimension_id) . ",
		dimension2_id=".db_escape($dimension2_id) . ",
		curr_code=".db_escape($curr_code).",
		payment_terms=".db_escape($payment_terms) . ",
		payable_account=".db_escape($payable_account) . ",
		purchase_account=".db_escape($purchase_account) . ",
		payment_discount_account=".db_escape($payment_discount_account) . ",
		notes=".db_escape($notes) . ",
		tax_group_id=".db_escape($tax_group_id) . ",
		rep_lang=".db_escape($rep_lang ? $rep_lang : null, true) . " WHERE supplier_id = ".db_escape($supplier_id);

	db_query($sql,"The supplier could not be updated");
}

function delete_supplier($supplier_id)
{
	$sql="DELETE FROM ".TB_PREF."suppliers WHERE supplier_id=".db_escape($supplier_id);
	db_query($sql,"check failed");
}

function get_supplier_details($supplier_id, $to=null)
{

	if ($to == null)
		$todate = date("Y-m-d");
	else
		$todate = date2sql($to);
	$past1 = get_company_pref('past_due_days');
	$past2 = 2 * $past1;
	// removed - supp_trans.alloc from all summations

    $value = "(".TB_PREF."supp_trans.ov_amount + ".TB_PREF."supp_trans.ov_gst + ".TB_PREF."supp_trans.ov_discount)";
	$due = "IF (".TB_PREF."supp_trans.type=".ST_SUPPINVOICE." OR ".TB_PREF."supp_trans.type=".ST_SUPPCREDIT.",".TB_PREF."supp_trans.due_date,".TB_PREF."supp_trans.tran_date)";
    $sql = "SELECT ".TB_PREF."suppliers.supp_name, ".TB_PREF."suppliers.curr_code, ".TB_PREF."payment_terms.terms,

		Sum($value) AS Balance,

		Sum(IF ((TO_DAYS('$todate') - TO_DAYS($due)) >= 0,$value,0)) AS Due,
		Sum(IF ((TO_DAYS('$todate') - TO_DAYS($due)) >= $past1,$value,0)) AS Overdue1,
		Sum(IF ((TO_DAYS('$todate') - TO_DAYS($due)) >= $past2,$value,0)) AS Overdue2

		FROM ".TB_PREF."suppliers,
			 ".TB_PREF."payment_terms,
			 ".TB_PREF."supp_trans

		WHERE
			 ".TB_PREF."suppliers.payment_terms = ".TB_PREF."payment_terms.terms_indicator
			 AND ".TB_PREF."suppliers.supplier_id = $supplier_id
			 AND ".TB_PREF."supp_trans.tran_date <= '$todate'
			 AND ".TB_PREF."suppliers.supplier_id = ".TB_PREF."supp_trans.supplier_id

		GROUP BY
			  ".TB_PREF."suppliers.supp_name,
			  ".TB_PREF."payment_terms.terms,
			  ".TB_PREF."payment_terms.days_before_due,
			  ".TB_PREF."payment_terms.day_in_following_month";

    $result = db_query($sql,"The customer details could not be retrieved");

    if (db_num_rows($result) == 0)
    {

    	/*Because there is no balance - so just retrieve the header information about the customer - the choice is do one query to get the balance and transactions for those customers who have a balance and two queries for those who don't have a balance OR always do two queries - I opted for the former */

    	$nil_balance = true;

    	$sql = "SELECT ".TB_PREF."suppliers.supp_name, ".TB_PREF."suppliers.curr_code, ".TB_PREF."suppliers.supplier_id,  ".TB_PREF."payment_terms.terms
			FROM ".TB_PREF."suppliers,
				 ".TB_PREF."payment_terms
			WHERE
				 ".TB_PREF."suppliers.payment_terms = ".TB_PREF."payment_terms.terms_indicator
				 AND ".TB_PREF."suppliers.supplier_id = ".db_escape($supplier_id);

    	$result = db_query($sql,"The customer details could not be retrieved");

    }
    else
    {
    	$nil_balance = false;
    }

    $supp = db_fetch($result);

    if ($nil_balance == true)
    {
    	$supp["Balance"] = 0;
    	$supp["Due"] = 0;
    	$supp["Overdue1"] = 0;
    	$supp["Overdue2"] = 0;
    }

    return $supp;

}

function get_supplier($supplier_id)
{
	$sql = "SELECT * FROM ".TB_PREF."suppliers WHERE supplier_id=".db_escape($supplier_id);

	$result = db_query($sql, "could not get supplier");

	return db_fetch($result);
}

function get_supplier_name($supplier_id)
{
	$sql = "SELECT supp_name AS name FROM ".TB_PREF."suppliers WHERE supplier_id=".db_escape($supplier_id);

	$result = db_query($sql, "could not get supplier");

	$row = db_fetch_row($result);

	return $row[0];
}

function get_supplier_accounts($supplier_id)
{
	$sql = "SELECT payable_account,purchase_account,payment_discount_account FROM ".TB_PREF."suppliers WHERE supplier_id=".db_escape($supplier_id);

	$result = db_query($sql, "could not get supplier");

	return db_fetch($result);
}


?>