public static function Calculation($users,$projects,$storage,$active_to,$tiers_str,$client_id,$active_from='') {
$css = ClientServiceSettings::model()->findByPk($client_id);
if ($css->CheckMinMax($users,$projects,$storage)) {
$tiers_str_before = $css->Service_Level_ID;
$tiers_arr_before = explode(',',$tiers_str_before);
//we need to divide inputted settings into base and additional
$base_level_settings_before = ClientServiceSettings::getBaseTierValues($tiers_arr_before);
$base_level_settings_after = ClientServiceSettings::getBaseTierValues(explode(',',$tiers_str));
$levels_check_sum_before = ClientServiceSettings::getLevelsCheckSum($tiers_arr_before);
$levels_check_sum_after = ClientServiceSettings::getLevelsCheckSum(explode(',',$tiers_str));
$count_sum_before = $css->Additional_Users + $css->Additional_Projects + $css->Additional_Storage + $base_level_settings_before['Users_Count'] + $base_level_settings_before['Projects_Count'] + $base_level_settings_before['Storage_Count'] + $levels_check_sum_before;
$count_sum_after = $users + $projects + $storage + $levels_check_sum_after;// + $base_level_settings_after['Users_Count'] + $base_level_settings_after['Projects_Count'] + $base_level_settings_after['Storage_Count'];
$service_level_grown =($count_sum_after > $count_sum_before) ? 1 : 0;
$active_to_date_changed = (strtotime($css->Active_To)< strtotime($active_to)) ? 1 : 0;
$service_level_grown = $active_to_date_changed ? 1 : $service_level_grown;
$base_fee_after = ClientServiceSettings::CalculateBaseFee(explode(',',$tiers_str));
//extra(additional)
$add_users = intval($users) - $base_level_settings_after['Users_Count'];//- $css->Additional_Users ;
$add_users = ( $add_users > 0 ) ? $add_users : 0;
$add_projects = $projects - $base_level_settings_after['Projects_Count'];//-$css->Additional_Projects ;
$add_projects = ( $add_projects > 0 ) ? $add_projects : 0;
$add_storage = $storage - $base_level_settings_after['Storage_Count'];//-$css->Additional_Storage ;
$add_storage = ( $add_storage > 0 ) ? $add_storage : 0;
$add_fee = $add_users * $base_level_settings_after['Max_Add_User_Fee'] + $add_projects * $base_level_settings_after['Max_Add_Project_Fee'] + $add_storage * $base_level_settings_after['Max_Add_Storage_Fee'];
$new_monthly_price = $base_fee_after + $add_fee;
$old_add_fee = $css->Additional_Users * $base_level_settings_after['Max_Add_User_Fee'] + $css->Additional_Projects * $base_level_settings_after['Max_Add_Project_Fee'] + $css->Additional_Storage * $base_level_settings_after['Max_Add_Storage_Fee'];
$add_fee_changed = $old_add_fee -$add_fee;
$old_monthly_price = $css->Fee;
//1) If active_to changed, we need to calculate how many months(periods)
$periods_for_current = Helper::calculatePeriodsBetweenDates(date('m/d/Y',strtotime($css->Active_To)),$active_to);
$periods_for_added = Helper::calculatePeriodsBetweenDates(date('m/d/Y'),$active_to);
//2) Multiply changes on the amount of periods
$changed_fee = round(floatval($new_monthly_price) - floatval($old_monthly_price),2)*$periods_for_added;
$changed_fee = ($changed_fee > 0) ? $changed_fee : 0;
//for cases when period changed and additional settings changed
if (!$active_from && $active_to_date_changed) {
$changed_fee = $changed_fee + $new_monthly_price*$periods_for_current;
}
return array(
'new_monthly_price'=>$new_monthly_price,
'changed_fee'=>$changed_fee,
'periods'=>$periods,
'service_level_grown'=>$service_level_grown,
'add_users'=>$add_users,
'add_projects'=>$add_projects,
'add_storage'=>$add_storage,
);
} else {
return false;
}
}
