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Merge pull request #382 from cbattarel/localtax
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calculate prices with generic local taxes management
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@eldy
eldy committed Sep 10, 2012
2 parents 6159e71 + c6da5b7 commit b623942
Showing 1 changed file with 138 additions and 70 deletions.
208 changes: 138 additions & 70 deletions htdocs/core/lib/price.lib.php
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/* Copyright (C) 2002-2006 Rodolphe Quiedeville <rodolphe@quiedeville.org>
* Copyright (C) 2006-2008 Laurent Destailleur <eldy@users.sourceforge.net>
* Copyright (C) 2010 Juanjo Menent <jmenent@2byte.es>
* Copyright (C) 2012 Christophe Battarel <christophe.battarel@altairis.fr>
*
* 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
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/**
* \file htdocs/core/lib/price.lib.php
* \brief Librairie contenant les fonctions pour calculer un prix.
* \version $Id: price.lib.php,v 1.36 2011/07/31 23:26:01 eldy Exp $
*/


/**
* Calculate totals (net, vat, ...) of a line.
*
* @param int $qty Quantity
* @param float $pu Unit price (HT or TTC selon price_base_type)
* @param float $remise_percent_ligne Discount for line
* @param float $txtva Vat rate
* @param float $txlocaltax1 Localtax1 rate (used for some countries only, like spain)
* @param float $txlocaltax2 Localtax2 rate (used for some countries only, like spain)
* @param int $qty Quantity
* @param float $pu Unit price (HT or TTC selon price_base_type)
* @param float $remise_percent_ligne Discount for line
* @param float $txtva Vat rate
* @param float $localtax1_rate Localtax1 rate
* @param float $localtax2_rate Localtax2 rate
* @param float $remise_percent_global 0
* @param string $price_base_type HT=on calcule sur le HT, TTC=on calcule sur le TTC
* @param int $info_bits Miscellanous informations on line
* @param char $localtax1_type Localtax1 type
* @param char $localtax2_type Localtax2 type
* @return result[0,1,2,3,4,5,6,7,8] (total_ht, total_vat, total_ttc, pu_ht, pu_tva, pu_ttc, total_ht_without_discount, total_vat_without_discount, total_ttc_without_discount)
*/
function calcul_price_total($qty, $pu, $remise_percent_ligne, $txtva, $txlocaltax1=0, $txlocaltax2=0, $remise_percent_global=0, $price_base_type='HT', $info_bits=0)
function calcul_price_total($qty, $pu, $remise_percent_ligne, $txtva, $localtax1_rate=0, $localtax2_rate=0, $remise_percent_global=0, $price_base_type='HT', $info_bits=0, $type=0, $localtax1_type = '0', $localtax2_type = '0')
{
global $conf,$mysoc;

$result=array();

// We work to define prices using the price without tax
// initialize total
$tot_sans_remise = $pu * $qty;
$tot_avec_remise_ligne = $tot_sans_remise * (1 - ($remise_percent_ligne / 100));
$tot_avec_remise = $tot_avec_remise_ligne * (1 - ($remise_percent_global / 100));

// initialize result
for ($i=0; $i <= 15; $i++)
$result[$i] = 0;

// if there's some localtax before vat
$localtaxes = array(0,0,0);
$apply_tax = false;
switch($localtax1_type) {
case '2': // localtax on product or service
$apply_tax = true;
break;
case '4': // localtax on product
if ($type == 0) $apply_tax = true;
break;
case '6': // localtax on service
if ($type == 1) $apply_tax = true;
break;
}
if ($apply_tax) {
$result[14] = price2num(($tot_sans_remise * (1 + ( $localtax1_rate / 100))) - $tot_sans_remise, 'MT');
$localtaxes[0] += $result[14];

$result[9] = price2num(($tot_avec_remise * (1 + ( $localtax1_rate / 100))) - $tot_avec_remise, 'MT');
$localtaxes[1] += $result[9];

$result[11] = price2num(($pu * (1 + ( $localtax1_rate / 100))) - $pu, 'MT');
$localtaxes[2] += $result[11];
}

$apply_tax = false;
switch($localtax2_type) {
case '2': // localtax on product or service
$apply_tax = true;
break;
case '4': // localtax on product
if ($type == 0) $apply_tax = true;
break;
case '6': // localtax on service
if ($type == 1) $apply_tax = true;
break;
}
if ($apply_tax) {
$result[15] = price2num(($tot_sans_remise * (1 + ( $localtax2_rate / 100))) - $tot_sans_remise, 'MT');
$localtaxes[0] += $result[15];

$result[10] = price2num(($tot_avec_remise * (1 + ( $localtax2_rate / 100))) - $tot_avec_remise, 'MT');
$localtaxes[1] += $result[10];

$result[12] = price2num(($pu * (1 + ( $localtax2_rate / 100))) - $pu, 'MT');
$localtaxes[2] += $result[12];
}

//dol_syslog("price.lib::calcul_price_total $qty, $pu, $remise_percent_ligne, $txtva, $price_base_type $info_bits");
if ($price_base_type == 'HT')
{
// We work to define prices using the price without tax
$result[6] = price2num($tot_sans_remise, 'MT');
$result[8] = price2num($tot_sans_remise * (1 + ( (($info_bits & 1)?0:$txtva) / 100)), 'MT'); // Selon TVA NPR ou non
$result8bis= price2num($tot_sans_remise * (1 + ( $txtva / 100)), 'MT'); // Si TVA consideree normale (non NPR)
$result[7] = price2num($result8bis - $result[6], 'MT');
$result[8] = price2num(($tot_sans_remise + $localtaxes[0]) * (1 + ( (($info_bits & 1)?0:$txtva) / 100)), 'MT'); // Selon TVA NPR ou non
$result8bis= price2num(($tot_sans_remise + $localtaxes[0]) * (1 + ( $txtva / 100)), 'MT'); // Si TVA consideree normale (non NPR)
$result[7] = price2num($result8bis - ($result[6] + $localtaxes[0]), 'MT');

$result[0] = price2num($tot_avec_remise, 'MT');
$result[2] = price2num($tot_avec_remise * (1 + ( (($info_bits & 1)?0:$txtva) / 100)), 'MT'); // Selon TVA NPR ou non
$result2bis= price2num($tot_avec_remise * (1 + ( $txtva / 100)), 'MT'); // Si TVA consideree normale (non NPR)
$result[2] = price2num(($tot_avec_remise + $localtaxes[1]) * (1 + ( (($info_bits & 1)?0:$txtva) / 100)), 'MT'); // Selon TVA NPR ou non
$result2bis= price2num(($tot_avec_remise + $localtaxes[1]) * (1 + ( $txtva / 100)), 'MT'); // Si TVA consideree normale (non NPR)

$result[1] = price2num($result2bis - $result[0], 'MT'); // Total VAT = TTC - HT
$result[1] = price2num($result2bis - ($result[0] + $localtaxes[1]), 'MT'); // Total VAT = TTC - (HT + localtax)

$result[3] = price2num($pu, 'MU');
$result[5] = price2num($pu * (1 + ((($info_bits & 1)?0:$txtva) / 100)), 'MU'); // Selon TVA NPR ou non
$result5bis= price2num($pu * (1 + ($txtva / 100)), 'MU'); // Si TVA consideree normale (non NPR)
$result[4] = price2num($result5bis - $result[3], 'MU');
}
else
{
$result[8] = price2num($tot_sans_remise, 'MT');
$result[6] = price2num($tot_sans_remise / (1 + ((($info_bits & 1)?0:$txtva) / 100)), 'MT'); // Selon TVA NPR ou non
$result6bis= price2num($tot_sans_remise / (1 + ($txtva / 100)), 'MT'); // Si TVA consideree normale (non NPR)
$result[7] = price2num($result[8] - $result6bis, 'MT');

$result[2] = price2num($tot_avec_remise, 'MT');
$result[0] = price2num($tot_avec_remise / (1 + ((($info_bits & 1)?0:$txtva) / 100)), 'MT'); // Selon TVA NPR ou non
$result0bis= price2num($tot_avec_remise / (1 + ($txtva / 100)), 'MT'); // Si TVA consideree normale (non NPR)

$result[1] = price2num($result[2] - $result0bis, 'MT'); // Total VAT = TTC - HT

$result[5] = price2num($pu, 'MU');
$result[3] = price2num($pu / (1 + ((($info_bits & 1)?0:$txtva) / 100)), 'MU'); // Selon TVA NPR ou non
$result3bis= price2num($pu / (1 + ($txtva / 100)), 'MU'); // Si TVA consideree normale (non NPR)
$result[4] = price2num($result[5] - $result3bis, 'MU');
}

// Local taxes 1. Local tax1 is a second tax that is added after standard one)
if ($txlocaltax1 > 0)
{
$result[14] = price2num(($result[6] * ( 1 + ( $txlocaltax1 / 100))) - $result[6], 'MT'); // amount tax1 for total_ht_without_discount
$result[9] = price2num(($result[0] * ( 1 + ( $txlocaltax1 / 100))) - $result[0], 'MT'); // amount tax1 for total_ht
$result[11] = price2num(($result[3] * ( 1 + ( $txlocaltax1 / 100))) - $pu, 'MU'); // amount tax1 for pu_ht

$result[8] = price2num($result[8] + $result[14], 'MT'); // total_ttc_without_discount + tax1
$result[2] = price2num($result[2] + $result[9], 'MT'); // total_ttc + tax1
$result[5] = price2num($result[5] + $result[11], 'MU'); // pu_ht + tax1
$result[5] = price2num(($pu + $localtaxes[2]) * (1 + ((($info_bits & 1)?0:$txtva) / 100)), 'MU'); // Selon TVA NPR ou non
$result5bis= price2num(($pu + $localtaxes[2]) * (1 + ($txtva / 100)), 'MU'); // Si TVA consideree normale (non NPR)
$result[4] = price2num($result5bis - ($result[3] + $localtaxes[2]), 'MU');
}
else
{
$result[14] = 0;
$result[9] = 0;
$result[11] = 0;
// We work to define prices using the price with tax
$result[8] = price2num($tot_sans_remise + $localtaxes[0], 'MT');
$result[6] = price2num(($tot_sans_remise + $localtaxes[0]) / (1 + ((($info_bits & 1)?0:$txtva) / 100)), 'MT'); // Selon TVA NPR ou non
$result6bis= price2num(($tot_sans_remise + $localtaxes[0]) / (1 + ($txtva / 100)), 'MT'); // Si TVA consideree normale (non NPR)
$result[7] = price2num($result[8] - ($result6bis + $localtaxes[0]), 'MT');

$result[2] = price2num($tot_avec_remise + $localtaxes[1], 'MT');
$result[0] = price2num(($tot_avec_remise + $localtaxes[1]) / (1 + ((($info_bits & 1)?0:$txtva) / 100)), 'MT'); // Selon TVA NPR ou non
$result0bis= price2num(($tot_avec_remise + $localtaxes[1]) / (1 + ($txtva / 100)), 'MT'); // Si TVA consideree normale (non NPR)

$result[1] = price2num($result[2] - ($result0bis + $localtaxes[1]), 'MT'); // Total VAT = TTC - HT

$result[5] = price2num(($pu + $localtaxes[2]) , 'MU');
$result[3] = price2num(($pu + $localtaxes[2]) / (1 + ((($info_bits & 1)?0:$txtva) / 100)), 'MU'); // Selon TVA NPR ou non
$result3bis= price2num(($pu + $localtaxes[2]) / (1 + ($txtva / 100)), 'MU'); // Si TVA consideree normale (non NPR)
$result[4] = price2num($result[5] - ($result3bis + $localtaxes[2]), 'MU');
}

// Local taxes 2. Local tax2 is a second tax that is substracted after standard one)
// Example: Country = Spain, localtax2 is IRPF
if ($txlocaltax2 > 0)
{
$result[15] = price2num(($result[6] * ( 1 + ( $txlocaltax2 / 100))) - $result[6], 'MT'); // amount tax2 for total_ht_without_discount
$result[10] = price2num(($result[0] * ( 1 + ( $txlocaltax2 / 100))) - $result[0], 'MT'); // amount tax2 for total_ht
$result[12] = price2num(($result[3] * ( 1 + ( $txlocaltax2 / 100))) - $pu, 'MU'); // amount tax2 for pu_ht

$result[8] = price2num($result[8] - $result[15], 'MT'); // total_ttc_without_discount + tax2
$result[2] = price2num($result[2] - $result[10], 'MT'); // total_ttc + tax2
$result[5] = price2num($result[5] - $result[12], 'MU'); // pu_ttc + tax2
}
else
{
$result[15] = 0;
$result[10] = 0;
$result[12] = 0;
}
// if there's some localtax without vat
$apply_tax = false;
switch($localtax1_type) {
case '1': // localtax on product or service
$apply_tax = true;
break;
case '3': // localtax on product
if ($type == 0) $apply_tax = true;
break;
case '5': // localtax on service
if ($type == 1) $apply_tax = true;
break;
}
if ($apply_tax) {
$result[14] = price2num(($tot_sans_remise * (1 + ( $localtax1_rate / 100))) - $tot_sans_remise, 'MT');
$result[8] += $result[14];

$result[9] = price2num(($tot_avec_remise * (1 + ( $localtax1_rate / 100))) - $tot_avec_remise, 'MT');
$result[2] += $result[9];

$result[11] = price2num(($pu * (1 + ( $localtax1_rate / 100))) - $pu, 'MU');
$result[5] += $result[11];
}

$apply_tax = false;
switch($localtax2_type) {
case '1': // localtax on product or service
$apply_tax = true;
break;
case '3': // localtax on product
if ($type == 0) $apply_tax = true;
break;
case '5': // localtax on service
if ($type == 1) $apply_tax = true;
break;
}
if ($apply_tax) {
$result[15] = price2num(($tot_sans_remise * (1 + ( $localtax2_rate / 100))) - $tot_sans_remise, 'MT');
$result[8] += $result[15];

$result[10] = price2num(($tot_avec_remise * (1 + ( $localtax2_rate / 100))) - $tot_avec_remise, 'MT');
$result[2] += $result[10];

$result[12] = price2num(($pu * (1 + ( $localtax2_rate / 100))) - $pu, 'MU');
$result[5] += $result[12];
}

// If rounding is not using base 10 (rare)
if (! empty($conf->global->MAIN_ROUNDING_RULE_TOT))
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