price.lib.php

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<?php
/* Copyright (C) 2002-2006 Rodolphe Quiedeville <rodolphe@quiedeville.org>
 * Copyright (C) 2006-2008 Laurent Destailleur  <eldy@users.sourceforge.net>
 * Copyright (C) 2010-2013 Juanjo Menent        <jmenent@2byte.es>
 * Copyright (C) 2012      Christophe Battarel  <christophe.battarel@altairis.fr>
 * Copyright (C) 2012      Cédric Salvador      <csalvador@gpcsolutions.fr>
 * Copyright (C) 2012-2014 Raphaël Doursenaud   <rdoursenaud@gpcsolutions.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
 * 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
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

function calcul_price_total($qty, $pu, $remise_percent_ligne, $txtva, $uselocaltax1_rate, $uselocaltax2_rate, $remise_percent_global, $price_base_type, $info_bits, $type, $seller = '', $localtaxes_array = '', $progress = 100, $multicurrency_tx = 1, $pu_devise = 0, $multicurrency_code = '')
{
  global $conf, $mysoc, $db;

  $result = array();

  // Clean parameters
  if (empty($info_bits)) $info_bits = 0;
  if (empty($txtva)) $txtva = 0;
  if (empty($seller) || !is_object($seller))
  {
    dol_syslog("Price.lib::calcul_price_total Warning: function is called with parameter seller that is missing", LOG_WARNING);
    if (!is_object($mysoc)) // mysoc may be not defined (during migration process)
    {
      $mysoc = new Societe($db);
      $mysoc->setMysoc($conf);
    }
    $seller = $mysoc; // If sell is done to a customer, $seller is not provided, we use $mysoc
    //var_dump($seller->country_id);exit;
  }
  if (empty($localtaxes_array) || !is_array($localtaxes_array)) {
    dol_syslog("Price.lib::calcul_price_total Warning: function is called with parameter localtaxes_array that is missing or empty", LOG_WARNING);
  }
  if (!is_numeric($txtva)) {
    dol_syslog("Price.lib::calcul_price_total Warning: function was called with a parameter vat rate that is not a real numeric value. There is surely a bug.", LOG_ERR);
  } elseif ($txtva >= 1000) {
    dol_syslog("Price.lib::calcul_price_total Warning: function was called with a bad value for vat rate (should be often < 100, always < 1000). There is surely a bug.", LOG_ERR);
  }
  // Too verbose. Enable for debug only
  //dol_syslog("Price.lib::calcul_price_total qty=".$qty." pu=".$pu." remiserpercent_ligne=".$remise_percent_ligne." txtva=".$txtva." uselocaltax1_rate=".$uselocaltax1_rate." uselocaltax2_rate=".$uselocaltax2_rate.' remise_percent_global='.$remise_percent_global.' price_base_type='.$ice_base_type.' type='.$type.' progress='.$progress);

  $countryid = $seller->country_id;

  if (is_numeric($uselocaltax1_rate)) $uselocaltax1_rate = (float) $uselocaltax1_rate;
  if (is_numeric($uselocaltax2_rate)) $uselocaltax2_rate = (float) $uselocaltax2_rate;

  if ($uselocaltax1_rate < 0) $uselocaltax1_rate = $seller->localtax1_assuj;
  if ($uselocaltax2_rate < 0) $uselocaltax2_rate = $seller->localtax2_assuj;

  //var_dump($uselocaltax1_rate.' - '.$uselocaltax2_rate);
  dol_syslog('Price.lib::calcul_price_total qty='.$qty.' pu='.$pu.' remise_percent_ligne='.$remise_percent_ligne.' txtva='.$txtva.' uselocaltax1_rate='.$uselocaltax1_rate.' uselocaltax2_rate='.$uselocaltax2_rate.' remise_percent_global='.$remise_percent_global.' price_base_type='.$price_base_type.' type='.$type.' progress='.$progress);

  // Now we search localtaxes information ourself (rates and types).
  $localtax1_type = 0;
  $localtax2_type = 0;

  if (is_array($localtaxes_array) && count($localtaxes_array)) {
    $localtax1_type = $localtaxes_array[0];
    $localtax1_rate = $localtaxes_array[1];
    $localtax2_type = $localtaxes_array[2];
    $localtax2_rate = $localtaxes_array[3];
  } else {
    // deprecated method. values and type for localtaxes must be provided by caller and loaded with getLocalTaxesFromRate using the full vat rate (including text code)
    // also, with this method, we may get several possible values (for example with localtax2 in spain), so we take the first one.
    dol_syslog("Price.lib::calcul_price_total search vat information using old deprecated method", LOG_WARNING);

    $sql = "SELECT taux, localtax1, localtax2, localtax1_type, localtax2_type";
    $sql .= " FROM ".MAIN_DB_PREFIX."c_tva as cv";
    $sql .= " WHERE cv.taux = ".$txtva;
    $sql .= " AND cv.fk_pays = ".$countryid;
    $resql = $db->query($sql);
    if ($resql)
    {
      $obj = $db->fetch_object($resql);
      if ($obj)
      {
        $localtax1_rate = (float) $obj->localtax1;    // Use float to force to get first numeric value when value is x:y:z
        $localtax2_rate = (float) $obj->localtax2;    // Use float to force to get first numeric value when value is -19:-15:-9
        $localtax1_type = $obj->localtax1_type;
        $localtax2_type = $obj->localtax2_type;
        //var_dump($localtax1_rate.' '.$localtax2_rate.' '.$localtax1_type.' '.$localtax2_type);
      }
    } else dol_print_error($db);
  }

  // pu calculation from pu_devise if pu empty
  if (empty($pu) && !empty($pu_devise)) {
    if (!empty($multicurrency_tx)) $pu = $pu_devise / $multicurrency_tx;
    else {
      dol_syslog('Price.lib::calcul_price_total function called with bad parameters combination (multicurrency_tx empty when pu_devise not) ', LOG_ERR);
      return array();
    }
  }
  if ($pu === '') $pu = 0;
  // pu_devise calculation from pu
  if (empty($pu_devise) && !empty($multicurrency_tx)) {
    if (is_numeric($pu) && is_numeric($multicurrency_tx)) $pu_devise = $pu * $multicurrency_tx;
    else {
      dol_syslog('Price.lib::calcul_price_total function called with bad parameters combination (pu or multicurrency_tx are not numeric)', LOG_ERR);
      return array();
    }
  }

  // initialize total (may be HT or TTC depending on price_base_type)
  $tot_sans_remise = $pu * $qty * $progress / 100;
  $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 array
  for ($i = 0; $i <= 15; $i++) $result[$i] = 0;

  // if there's some localtax including vat, we calculate localtaxes (we will add later)

  // if input unit price is 'HT', we need to have the totals with main VAT for a correct calculation
  if ($price_base_type != 'TTC')
  {
    $tot_sans_remise_wt = price2num($tot_sans_remise * (1 + ($txtva / 100)), 'MU');
    $tot_avec_remise_wt = price2num($tot_avec_remise * (1 + ($txtva / 100)), 'MU');
    $pu_wt = price2num($pu * (1 + ($txtva / 100)), 'MU');
  } else {
    $tot_sans_remise_wt = $tot_sans_remise;
    $tot_avec_remise_wt = $tot_avec_remise;
    $pu_wt = $pu;
  }

  //print 'rr'.$price_base_type.'-'.$txtva.'-'.$tot_sans_remise_wt."-".$pu_wt."-".$uselocaltax1_rate."-".$localtax1_rate."-".$localtax1_type."\n";

  $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 ($uselocaltax1_rate && $apply_tax) {
      $result[14] = price2num(($tot_sans_remise_wt * (1 + ($localtax1_rate / 100))) - $tot_sans_remise_wt, 'MT');
      $localtaxes[0] += $result[14];

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

      $result[11] = price2num(($pu_wt * (1 + ($localtax1_rate / 100))) - $pu_wt, 'MU');
      $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) $apply_tax = true;
      break;
  }
  if ($uselocaltax2_rate && $apply_tax) {
      $result[15] = price2num(($tot_sans_remise_wt * (1 + ($localtax2_rate / 100))) - $tot_sans_remise_wt, 'MT');
      $localtaxes[0] += $result[15];

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

      $result[12] = price2num(($pu_wt * (1 + ($localtax2_rate / 100))) - $pu_wt, 'MU');
      $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)) + $localtaxes[0], 'MT'); // Selon TVA NPR ou non
    $result8bis = price2num($tot_sans_remise * (1 + ($txtva / 100)) + $localtaxes[0], '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)) + $localtaxes[1], 'MT'); // Selon TVA NPR ou non
    $result2bis = price2num($tot_avec_remise * (1 + ($txtva / 100)) + $localtaxes[1], 'MT'); // Si TVA consideree normale (non NPR)
    $result[1] = price2num($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)) + $localtaxes[2], 'MU'); // Selon TVA NPR ou non
    $result5bis = price2num($pu * (1 + ($txtva / 100)) + $localtaxes[2], 'MU'); // Si TVA consideree normale (non NPR)
    $result[4] = price2num($result5bis - ($result[3] + $localtaxes[2]), 'MU');
  } else {
    // 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 / (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 + $localtaxes[0]), 'MT');

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

    $result[5] = price2num($pu + $localtaxes[2], '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 + $localtaxes[2]), 'MU');
  }

  // if there's some localtax without vat, we calculate localtaxes (we will add them at end)

  //If input unit price is 'TTC', we need to have the totals without main VAT for a correct calculation
  if ($price_base_type == 'TTC')
  {
    $tot_sans_remise = price2num($tot_sans_remise / (1 + ($txtva / 100)), 'MU');
    $tot_avec_remise = price2num($tot_avec_remise / (1 + ($txtva / 100)), 'MU');
    $pu = price2num($pu / (1 + ($txtva / 100)), 'MU');
  }

  $apply_tax = false;
  switch ($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) $apply_tax = true;
      break;
  }
  if ($uselocaltax1_rate && $apply_tax) {
      $result[14] = price2num(($tot_sans_remise * (1 + ($localtax1_rate / 100))) - $tot_sans_remise, 'MT'); // amount tax1 for total_ht_without_discount
      $result[8] += $result[14]; // total_ttc_without_discount + tax1

      $result[9] = price2num(($tot_avec_remise * (1 + ($localtax1_rate / 100))) - $tot_avec_remise, 'MT'); // amount tax1 for total_ht
      $result[2] += $result[9]; // total_ttc + tax1

      $result[11] = price2num(($pu * (1 + ($localtax1_rate / 100))) - $pu, 'MU'); // amount tax1 for pu_ht
      $result[5] += $result[11]; // pu_ht + tax1
  }

  $apply_tax = false;
  switch ($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) $apply_tax = true;
      break;
  }
  if ($uselocaltax2_rate && $apply_tax) {
      $result[15] = price2num(($tot_sans_remise * (1 + ($localtax2_rate / 100))) - $tot_sans_remise, 'MT'); // amount tax2 for total_ht_without_discount
      $result[8] += $result[15]; // total_ttc_without_discount + tax2

      $result[10] = price2num(($tot_avec_remise * (1 + ($localtax2_rate / 100))) - $tot_avec_remise, 'MT'); // amount tax2 for total_ht
      $result[2] += $result[10]; // total_ttc + tax2

      $result[12] = price2num(($pu * (1 + ($localtax2_rate / 100))) - $pu, 'MU'); // amount tax2 for pu_ht
      $result[5] += $result[12]; // pu_ht + tax2
  }

  // If rounding is not using base 10 (rare)
  if (!empty($conf->global->MAIN_ROUNDING_RULE_TOT))
  {
    if ($price_base_type == 'HT')
    {
      $result[0] = round($result[0] / $conf->global->MAIN_ROUNDING_RULE_TOT, 0) * $conf->global->MAIN_ROUNDING_RULE_TOT;
      $result[1] = round($result[1] / $conf->global->MAIN_ROUNDING_RULE_TOT, 0) * $conf->global->MAIN_ROUNDING_RULE_TOT;
      $result[9] = round($result[9] / $conf->global->MAIN_ROUNDING_RULE_TOT, 0) * $conf->global->MAIN_ROUNDING_RULE_TOT;
      $result[10] = round($result[10] / $conf->global->MAIN_ROUNDING_RULE_TOT, 0) * $conf->global->MAIN_ROUNDING_RULE_TOT;
      $result[2] = price2num($result[0] + $result[1] + $result[9] + $result[10], 'MT');
    } else {
      $result[1] = round($result[1] / $conf->global->MAIN_ROUNDING_RULE_TOT, 0) * $conf->global->MAIN_ROUNDING_RULE_TOT;
      $result[2] = round($result[2] / $conf->global->MAIN_ROUNDING_RULE_TOT, 0) * $conf->global->MAIN_ROUNDING_RULE_TOT;
      $result[9] = round($result[9] / $conf->global->MAIN_ROUNDING_RULE_TOT, 0) * $conf->global->MAIN_ROUNDING_RULE_TOT;
      $result[10] = round($result[10] / $conf->global->MAIN_ROUNDING_RULE_TOT, 0) * $conf->global->MAIN_ROUNDING_RULE_TOT;
      $result[0] = price2num($result[2] - $result[1] - $result[9] - $result[10], 'MT');
    }
  }

  // Multicurrency
  if ($multicurrency_tx != 1)
  {
    if ($multicurrency_code) {
      $savMAIN_MAX_DECIMALS_UNIT = $conf->global->MAIN_MAX_DECIMALS_UNIT;
      $savMAIN_MAX_DECIMALS_TOT = $conf->global->MAIN_MAX_DECIMALS_TOT;
      $savMAIN_ROUNDING_RULE_TOT = $conf->global->MAIN_ROUNDING_RULE_TOT;

      // Set parameter for currency accurency according to the value of $multicurrency_code (this is because a foreign currency may have different rounding rules)
      $keyforforeignMAIN_MAX_DECIMALS_UNIT = 'MAIN_MAX_DECIMALS_UNIT_'.$multicurrency_code;
      $keyforforeignMAIN_MAX_DECIMALS_TOT = 'MAIN_MAX_DECIMALS_TOT_'.$multicurrency_code;
      $keyforforeignMAIN_ROUNDING_RULE_TOT = 'MAIN_ROUNDING_RULE_TOT_'.$multicurrency_code;
      if (!empty($conf->global->$keyforforeignMAIN_ROUNDING_RULE_TOT)) {
        $conf->global->MAIN_MAX_DECIMALS_UNIT = $conf->global->$keyforforeignMAIN_MAX_DECIMALS_UNIT;
        $conf->global->MAIN_MAX_DECIMALS_TOT = $conf->global->$keyforforeignMAIN_MAX_DECIMALS_TOT;
        $conf->global->MAIN_ROUNDING_RULE_TOT = $conf->global->$keyforforeignMAIN_ROUNDING_RULE_TOT;
      }
    }

    // Recal function using the multicurrency price as reference price. We must set param $multicurrency_tx to 1 to avoid infinite loop.
    $newresult = calcul_price_total($qty, $pu_devise, $remise_percent_ligne, $txtva, $uselocaltax1_rate, $uselocaltax2_rate, $remise_percent_global, $price_base_type, $info_bits, $type, $seller, $localtaxes_array, $progress, 1, 0, '');

    if ($multicurrency_code) {
      // Restore setup of currency accurency
      $conf->global->MAIN_MAX_DECIMALS_UNIT = $savMAIN_MAX_DECIMALS_UNIT;
      $conf->global->MAIN_MAX_DECIMALS_TOT = $savMAIN_MAX_DECIMALS_TOT;
      $conf->global->MAIN_ROUNDING_RULE_TOT = $savMAIN_ROUNDING_RULE_TOT;
    }

    $result[16] = $newresult[0];
    $result[17] = $newresult[1];
    $result[18] = $newresult[2];
    $result[19] = $newresult[3];
    $result[20] = $newresult[4];
    $result[21] = $newresult[5];
    $result[22] = $newresult[6];
    $result[23] = $newresult[7];
    $result[24] = $newresult[8];
    $result[25] = $newresult[9];
    $result[26] = $newresult[10];
  } else {
    $result[16] = $result[0];
    $result[17] = $result[1];
    $result[18] = $result[2];
    $result[19] = $result[3];
    $result[20] = $result[4];
    $result[21] = $result[5];
    $result[22] = $result[6];
    $result[23] = $result[7];
    $result[24] = $result[8];
    $result[25] = $result[9];
    $result[26] = $result[10];
  }

  //var_dump($result);
  // initialize result array
  //for ($i=0; $i <= 18; $i++) $result[$i] = (float) $result[$i];

  dol_syslog('Price.lib::calcul_price_total MAIN_ROUNDING_RULE_TOT='.(empty($conf->global->MAIN_ROUNDING_RULE_TOT)?'':$conf->global->MAIN_ROUNDING_RULE_TOT).' pu='.$pu.' qty='.$qty.' price_base_type='.$price_base_type.' total_ht='.$result[0].'-total_vat='.$result[1].'-total_ttc='.$result[2]);

  return $result;
}