protected function populate(int $price_item_id, &$price_item)
 {
     if ($price_item == null) {
         $price_item = new rental_invoice_price_item(0, $this->db->f('id', true), $this->db->f('invoice_id', true), $this->db->f('title', true), $this->db->f('agresso_id', true), $this->db->f('is_area', true), $this->db->f('price', true), $this->db->f('area', true), $this->db->f('count', true), strtotime($this->db->f('date_start', true)), strtotime($this->db->f('date_end', true)));
         $price_item->set_total_price($this->db->f('total_price', true));
     }
     return $price_item;
 }
 public function get_total_price_current_year()
 {
     /* 1. Get current year
      * 2. Check contract dates to see if the contract is/has:
      * 2.1 ...ended - return 0
      * 2.2 ...active alle year - return total price
      * 2.3 ...ends or starts current year - calculate price
      * 2.3.1
      */
     $date_start = phpgw::get_var('date_start');
     $date_end = phpgw::get_var('date_end');
     if (isset($date_start)) {
         $aDate = explode("/", $date_start);
         $date_start = $aDate[1] . "/" . $aDate[0] . "/" . $aDate[2];
         $timestamp_invoice_start = strtotime($date_start);
     }
     if (isset($date_end)) {
         $aDate = explode("/", $date_end);
         $date_end = $aDate[1] . "/" . $aDate[0] . "/" . $aDate[2];
         $timestamp_invoice_end = strtotime($date_end);
     }
     if (!isset($timestamp_invoice_start) || $timestamp_invoice_start == "" || !isset($timestamp_invoice_end) || $timestamp_invoice_end == "") {
         $current_year = date("Y");
         $timestamp_invoice_start = strtotime("{$current_year}-1-1");
         $timestamp_invoice_end = strtotime("{$current_year}-12-31");
     }
     $contract_dates = $this->get_contract_date();
     if (isset($contract_dates)) {
         $contract_start = $contract_dates->get_start_date();
         $contract_end = $contract_dates->get_end_date();
         if (isset($contract_end) && $contract_end < $timestamp_invoice_start) {
             return 0;
             // The contract ends before start of current year
         } else {
             if ($contract_start > $timestamp_invoice_end) {
                 return 0;
                 // The contract starts after the end of current year
             }
         }
     } else {
         return 0;
         // The contract has no dates
     }
     // The contract is active only parts of the current year, we must calculate the total sum using the billing logic
     $total_sum = 0;
     // Holding the total price of the contract current year
     $contract_price_items = rental_socontract_price_item::get_instance()->get(null, null, null, null, null, null, array('contract_id' => $this->get_id()));
     // Run through the contract price items
     foreach ($contract_price_items as $contract_price_item) {
         // ---- Period calculation ---
         // Determine start date for price item
         $contract_price_item_start = $contract_price_item->get_date_start();
         if ($contract_price_item_start == null || $contract_price_item_start == '') {
             // We just use the invoice date for our calculations
             $contract_price_item_start = $timestamp_invoice_start;
         }
         // Determine end date for price item
         $contract_price_item_end = $contract_price_item->get_date_end();
         if ($contract_price_item_end == null || $contract_price_item_end == '') {
             // We just use the invoice date for our calculations
             $contract_price_item_end = $timestamp_invoice_end;
         }
         // Sanity check - end date should never be before start date
         if ($contract_price_item_end < $contract_price_item_start) {
             continue;
             // We don't add this price item - continue to next
         }
         // Checking the start date against the invoice dates
         if ($contract_price_item_start < $timestamp_invoice_start) {
             $invoice_price_item_start = $timestamp_invoice_start;
             // We use the invoice start
         } else {
             if ($contract_price_item_start > $timestamp_invoice_end) {
                 continue;
                 // We don't add this price item - continue to next
             } else {
                 $invoice_price_item_start = $contract_price_item_start;
                 // We use the price item start
             }
         }
         // Checking the end date against invoice dates
         if ($contract_price_item_end < $timestamp_invoice_start) {
             continue;
             // We don't add this price item - continue to next
         } else {
             if ($contract_price_item_end < $timestamp_invoice_end) {
                 $invoice_price_item_end = $contract_price_item_end;
                 // We use the price item end
             } else {
                 $invoice_price_item_end = $timestamp_invoice_end;
                 // We use the invoice end
             }
         }
         // Checking the contract dates against the temporary price item dates
         if (isset($contract_start) && !$contract_price_item->is_one_time()) {
             if ($contract_start > $timestamp_invoice_end) {
                 continue;
                 //No price items for this contract will be billed
             }
             if ($contract_start > $invoice_price_item_start) {
                 $invoice_price_item_start = $contract_start;
             }
         }
         if (isset($contract_end) && !$contract_price_item->is_one_time()) {
             if ($contract_end < $timestamp_invoice_start) {
                 continue;
                 //No price items for this contract will be billed
             }
             if ($contract_end < $invoice_price_item_end) {
                 $invoice_price_item_end = $contract_end;
             }
         }
         // --- End of period calculation ---
         // Create a new invoice price item
         $invoice_price_item = new rental_invoice_price_item(2, -1, 0, $contract_price_item->get_title(), $contract_price_item->get_agresso_id(), $contract_price_item->is_area(), $contract_price_item->get_price(), $contract_price_item->get_area(), $contract_price_item->get_count(), $invoice_price_item_start, $invoice_price_item_end);
         $total_price_price_item = 0;
         // If the contract price item is of type one-time and it's dates are within the invoice period ...
         if ($contract_price_item->is_one_time()) {
             if ($contract_price_item_start >= $timestamp_invoice_start && $contract_price_item_start <= $timestamp_invoice_end) {
                 // ... set the total price of the invoice price item to the total price of the contract price item
                 $total_price_price_item = $contract_price_item->get_total_price();
             }
         } else {
             $total_price_price_item = $invoice_price_item->get_total_price();
         }
         $total_sum += round($total_price_price_item, 2);
     }
     // end of looping through the contract price items
     $total_sum = round($total_sum, 2);
     return $total_sum;
 }
 /**
  * Create invoice
  * 
  * @param int $decimals	the number of decimals on the total sum of the onvoice
  * @param int $billing_id	the billing this invoice is part of
  * @param int $contract_id	the contract
  * @param bool $override	flag to indicate if the invoice start period should be overridden with the billing start date of contract
  * @param int $timestamp_invoice_start	the startdate of the invoice period
  * @param int $timestamp_invoice_end	the enddate of the invoice period
  * @param bool $bill_only_one_time	flag to indicate if the the invoice should only bil one time price elements
  * @return rental_invoice	the newly created invoice
  */
 public static function create_invoice(int $decimals, int $billing_id, int $contract_id, bool $override, int $timestamp_invoice_start, int $timestamp_invoice_end, $bill_only_one_time, $dry_run = false, $billing_term = 0)
 {
     $contract = rental_socontract::get_instance()->get_single($contract_id);
     // If the invoice period should be overriden with the biling start date
     if ($override) {
         $timestamp_invoice_start = $contract->get_billing_start_date();
     }
     // If no account out is specified: check if the contract type defines any data to be used in this field (AGRESSO specific logic)
     $account_out = $contract->get_account_out();
     if (!isset($account_out) || $account_out == '') {
         //If no account out - check the contract type for default
         $account_tmp = rental_socontract::get_instance()->get_contract_type_account($contract->get_contract_type_id());
         if (isset($account_tmp) && $account_tmp != '') {
             $account_out = $account_tmp;
         } else {
             $account_out = rental_socontract::get_instance()->get_default_account($contract->get_location_id(), false);
         }
     }
     // Create invoice ...
     $invoice = new rental_invoice(-1, $billing_id, $contract_id, time(), $timestamp_invoice_start, $timestamp_invoice_end, 0, $contract->get_rented_area(), $contract->get_invoice_header(), $contract->get_account_in(), $account_out, $contract->get_service_id(), $contract->get_responsibility_id());
     // ... and add party identifier, project number and the old contract identifier
     $invoice->set_party_id($contract->get_payer_id());
     $invoice->set_project_id($contract->get_project_id());
     $invoice->set_old_contract_id($contract->get_old_contract_id());
     if (!$dry_run) {
         rental_soinvoice::get_instance()->store($invoice);
         // We must store the invoice at this point to have an id to give to the price item
     }
     // Retrieve the contract price items: only one-time or all
     if ($bill_only_one_time) {
         $filters2 = array('contract_id' => $contract->get_id(), 'contract_ids_one_time' => true, 'billing_term_id' => $billing_term, 'year' => date('Y', $timestamp_invoice_start), 'month' => date('m', $timestamp_invoice_start));
         //$contract_price_items = $socontract_price_item->get($start_index, $num_of_objects, $sort_field, $sort_ascending, $search_for, $search_type, $filters2);
         $contract_price_items = rental_socontract_price_item::get_instance()->get(null, null, null, null, null, null, $filters2);
         //$contract_price_items = rental_socontract_price_item::get_instance()->get(null, null, null, null, null, null, array('contract_id' => $contract->get_id(), 'one_time' => true));
     } else {
         $contract_price_items = rental_socontract_price_item::get_instance()->get(null, null, null, null, null, null, array('contract_id' => $contract->get_id()));
     }
     $total_sum = 0;
     // Holding the total price of the invoice
     $contract_dates = $contract->get_contract_date();
     if (isset($contract_dates)) {
         $contract_start = $contract->get_contract_date()->get_start_date();
         $contract_end = $contract->get_contract_date()->get_end_date();
     }
     // Run through the contract price items
     foreach ($contract_price_items as $contract_price_item) {
         // ---- Period calculation ---
         // Determine start date for price item
         $contract_price_item_start = $contract_price_item->get_date_start();
         if ($contract_price_item_start == null || $contract_price_item_start == '') {
             // We just use the invoice date for our calculations
             $contract_price_item_start = $timestamp_invoice_start;
         }
         // Determine end date for price item
         $contract_price_item_end = $contract_price_item->get_date_end();
         if ($contract_price_item_end == null || $contract_price_item_end == '') {
             // We just use the invoice date for our calculations
             $contract_price_item_end = $timestamp_invoice_end;
         }
         // Sanity check - end date should never be before start date
         if ($contract_price_item_end < $contract_price_item_start) {
             continue;
             // We don't add this price item - continue to next
         }
         // Checking the start date against the invoice dates
         if ($contract_price_item_start < $timestamp_invoice_start) {
             $invoice_price_item_start = $timestamp_invoice_start;
             // We use the invoice start
         } else {
             if ($contract_price_item_start > $timestamp_invoice_end) {
                 continue;
                 // We don't add this price item - continue to next
             } else {
                 $invoice_price_item_start = $contract_price_item_start;
                 // We use the price item start
             }
         }
         // Checking the end date against invoice dates
         if ($contract_price_item_end < $timestamp_invoice_start) {
             continue;
             // We don't add this price item - continue to next
         } else {
             if ($contract_price_item_end < $timestamp_invoice_end) {
                 $invoice_price_item_end = $contract_price_item_end;
                 // We use the price item end
             } else {
                 $invoice_price_item_end = $timestamp_invoice_end;
                 // We use the invoice end
             }
         }
         // Checking the contract dates against the temporary price item dates
         if (isset($contract_start) && !$contract_price_item->is_one_time()) {
             if ($contract_start > $timestamp_invoice_end) {
                 continue;
                 //No price items for this contract will be billed
             }
             if ($contract_start > $invoice_price_item_start) {
                 $invoice_price_item_start = $contract_start;
             }
         }
         if (isset($contract_end) && !$contract_price_item->is_one_time()) {
             if ($contract_end < $timestamp_invoice_start) {
                 continue;
                 //No price items for this contract will be billed
             }
             if ($contract_end < $invoice_price_item_end) {
                 $invoice_price_item_end = $contract_end;
             }
         }
         // --- End of period calculation ---
         // Create a new invoice price item
         $invoice_price_item = new rental_invoice_price_item($decimals, -1, $invoice->get_id(), $contract_price_item->get_title(), $contract_price_item->get_agresso_id(), $contract_price_item->is_area(), $contract_price_item->get_price(), $contract_price_item->get_area(), $contract_price_item->get_count(), $invoice_price_item_start, $invoice_price_item_end);
         // If the contract price item is of type one-time and it's dates are within the invoice period ...
         if ($contract_price_item->is_one_time()) {
             if ($contract_price_item_start >= $timestamp_invoice_start && $contract_price_item_start <= $timestamp_invoice_end) {
                 // ... set the total price of the invoice price item to the total price of the contract price item
                 $invoice_price_item->set_total_price($contract_price_item->get_total_price());
                 // ... and set the contract price item as billed
                 $contract_price_item->set_is_billed(true);
                 if (!$dry_run) {
                     rental_socontract_price_item::get_instance()->store($contract_price_item);
                 }
             }
         }
         if (!$dry_run) {
             // Store the invoice price item
             rental_soinvoice_price_item::get_instance()->store($invoice_price_item);
         }
         // Add the price item to the invoice
         $invoice->add_invoice_price_item($invoice_price_item);
         // Add this price item's total sum to the tota sum of the invoice
         $total_sum += $invoice_price_item->get_total_price();
     }
     // end of looping through the contract price items
     // Set the total sum of the invoice rounded to the specified number of decimals
     $invoice->set_total_sum(round($total_sum, $decimals));
     if (!$dry_run) {
         // ... and store the invoice
         rental_soinvoice::get_instance()->store($invoice);
     }
     return $invoice;
 }