<?php
class TenderType extends AppModel {

	var $belongsTo = array(
		'Account',
	);

	var $hasMany = array(
		'Tender',
	);


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: accountID
   *  - Returns the intended account ID for receipt of the given tender
   */

  function accountID($id) {
    $this->cacheQueries = true;
    $item = $this->find('first', array
			('contain' => false,
			 'conditions' => array('TenderType.id' => $id),
			 ));
    $this->cacheQueries = false;
    return $item['TenderType']['account_id'];
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: paymentTypes
   *  - Returns an array of types that can be used for payments
   */

  function paymentTypes($query = null) {
    $this->queryInit($query);
    $query['order'][] = 'name';

    $this->cacheQueries = true;
    $types = $this->find('all', $query);
    $this->cacheQueries = false;

    return $types;
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: paymentTypes
   *  - Returns an array of types that can be deposited
   */

  function depositTypes($query = null) {
    $this->queryInit($query);
    $query['order'][] = 'name';
    $query['conditions'][] = array('tillable' => true);

    $this->cacheQueries = true;
    $types = $this->find('all', $query);
    $this->cacheQueries = false;

    // Rearrange to be of the form (id => name)
    $result = array();
    foreach ($types AS $type)
      $result[$type['TenderType']['id']] = $type['TenderType']['name'];

    return $result;
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: defaultPaymentType
   *  - Returns the ID of the default payment type
   */

  function defaultPaymentType() {
    return $this->nameToID('Check');
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: stats
   *  - Returns the stats for the given tender type
   */

  function stats($id = null, $query = null) {
    if (!$id)
      return null;

    $this->queryInit($query);

    if (!isset($query['link']['Tender']))
      $query['link']['Tender'] = array('fields' => array());
    if (!isset($query['link']['Tender']['LedgerEntry']))
      $query['link']['Tender']['LedgerEntry'] = array('fields' => array());

    $query['fields'][] = "SUM(COALESCE(LedgerEntry.amount,0)) AS 'total'";
    $query['fields'][] = "SUM(IF(deposit_transaction_id IS NULL, COALESCE(LedgerEntry.amount,0), 0)) AS 'undeposited'";
    $query['fields'][] = "SUM(IF(deposit_transaction_id IS NULL, 0, COALESCE(LedgerEntry.amount,0))) AS 'deposited'";
    $query['fields'][] = "SUM(IF(nsf_transaction_id IS NULL, 0, COALESCE(LedgerEntry.amount,0))) AS 'nsf'";

    $this->id = $id;
    $stats = $this->find('first', $query);
    return $stats[0];
  }

}