<?php
class Customer extends AppModel {

	var $name = 'Customer';
	var $validate = array(
		'id' => array('numeric'),
		'name' => array('notempty'),
	);

	var $belongsTo = array(
		'PrimaryContact' => array(
			'className' => 'Contact',
		),
	);

	var $hasMany = array(
		'CurrentLease' => array(
			'className' => 'Lease',
			'conditions' => 'CurrentLease.close_date IS NULL',
		),
		'Lease',
		'StatementEntry',
		'ContactsCustomer',

		'Transaction',
	);

	var $hasAndBelongsToMany = array(
		'Contact',
	);


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: accountId
   *  - Returns the account ID for the given customer
   */
  function accountId($id) {
    $this->cacheQueries = true;
    $customer = $this->find('first',
			    array('contain' => false,
				  'fields' => array('account_id'),
				  'conditions' => array(array('Customer.id' => $id))));
    $this->cacheQueries = false;

    return $customer['Customer']['account_id'];
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: leaseIds
   *  - Returns the lease IDs for the given customer
   */
  function leaseIds($id) {
    $this->cacheQueries = true;
    $customer = $this->find('first',
			    array('contain' =>
				  array('Lease' => array('fields' => array('id'))),
				  'fields' => array(),
				  'conditions' => array(array('Customer.id' => $id))));
    $this->cacheQueries = false;

    $ids = array();
    foreach ($customer['Lease'] AS $lease)
      $ids[] = $lease['id'];

    return $ids;
  }

  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: securityDeposits
   *  - Returns an array of security deposit entries
   */
  function securityDeposits($id, $query = null) {
    $this->queryInit($query);

    $A = new Account();

    if (!isset($query['link']['Customer']))
      $query['link']['Customer'] = array();
    if (!isset($query['link']['Customer']['fields']))
      $query['link']['Customer']['fields'] = array();

    $query['conditions'][] = array('Customer.id' => $id);
    $query['conditions'][] = array('StatementEntry.account_id' => $A->securityDepositAccountID());

    $set = $this->StatementEntry->reconciledSet('CHARGE', $query);
    //pr(compact('set'));
    return $set;
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: unreconciledCharges
   *  - Returns charges have not yet been fully paid
   */

  function unreconciledCharges($id, $query = null) {
    $this->queryInit($query);

    if (!isset($query['link']['Customer']))
      $query['link']['Customer'] = array();
    if (!isset($query['link']['Customer']['fields']))
      $query['link']['Customer']['fields'] = array();
/*     if (!isset($query['link']['StatementEntry'])) */
/*       $query['link']['StatementEntry'] = array(); */
/*     if (!isset($query['link']['StatementEntry']['Customer'])) */
/*       $query['link']['StatementEntry']['Customer'] = array(); */
/*     if (!isset($query['link']['StatementEntry']['Customer']['fields'])) */
/*       $query['link']['StatementEntry']['Customer']['fields'] = array(); */

    $query['conditions'][] = array('Customer.id' => $id);

    $set = $this->StatementEntry->reconciledSet('CHARGE', $query, true);
    //pr(compact('set'));
    return $set;
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: excessPayments
   *  - Returns payments which have not yet been fully utilized
   */

  function excessPayments($id, $query = null) {
    $this->queryInit($query);

    if (!isset($query['link']['StatementEntry']))
      $query['link']['StatementEntry'] = array();
/*     if (!isset($query['link']['StatementEntry']['Customer'])) */
/*       $query['link']['StatementEntry']['Customer'] = array(); */
/*     if (!isset($query['link']['StatementEntry']['Customer']['fields'])) */
/*       $query['link']['StatementEntry']['Customer']['fields'] = array(); */

    $query['conditions'][] = array('Customer.id' => $id);

    $set = $this->StatementEntry->reconciledSet('PAYMENT', $query, true);
    //pr(compact('set'));
    return $set;
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: details
   *  - Returns detail information for the customer
   */

  function details($id = null) {
    // Query the DB for need information.
    $customer = $this->find
      ('first', array
       ('contain' => array
	(// Models
	 'Contact' =>
	 array('order'  => array('Contact.display_name'),
	       // Models
	       'ContactPhone',
	       'ContactEmail',
	       'ContactAddress',
	       ),
	 'Lease' =>
	 array('Unit' =>
	       array('order'  => array('sort_order'),
		     'fields' => array('id', 'name'),
		     ),
	       ),
	 ),

	'conditions' => array('Customer.id' => $id),
	));

    // Figure out the outstanding balance for this customer
    $customer['stats'] = $this->stats($id);

    // Figure out the total security deposit for the current lease.
    $customer['deposits'] = $this->securityDeposits($id);

    return $customer;
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: saveCustomer
   *  - Saves the customer and related data
   */

  function saveCustomer($id, $data, $primary_contact_entry) {

    // Go through each contact, and create new ones as needed
    foreach ($data['Contact'] AS &$contact) {
      if (isset($contact['id']))
	continue;

      $I = new Contact();
      $I->create();
      if (!$I->save($contact, false)) {
	return false;
      }
      $contact['id'] = $I->id;
    }

    // Set the primary contact ID based on caller selection
    $data['Customer']['primary_contact_id']
      = $data['Contact'][$primary_contact_entry]['id'];

    // Provide a default customer name if not specified
    if (!$data['Customer']['name']) {
      $this->Contact->recursive = -1;
      $pcontact = $this->Contact->read(null, $data['Customer']['primary_contact_id']);
      $data['Customer']['name'] = $pcontact['Contact']['display_name'];
    }

    // Save the customer data
    $this->create();
    if ($id)
      $this->id = $id;
    if (!$this->save($data, false)) {
      return false;
    }
    $id = $this->id;

    // Remove all associated Customer Contacts, as it ensures
    // any entries deleted by the user actually get deleted
    // in the system.  We'll recreate the needed ones anyway.
    // REVISIT <AP>: 20090706
    //  Appears that $this->save() is already doing the
    //  delete.  I would have thought this would only happen
    //  on a saveAll??
/*     $this->ContactsCustomer->deleteAll */
/*       (array('customer_id' => $id), false); */

    // At this point, since we've saved data to customer,
    // we'll proceed forward as much as possible, even
    // if we encounter an error.  For now, we'll assume
    // the operation will succeed.
    $ret = true;

    // Go through each entry of this customer method
    foreach ($data['Contact'] AS &$contact) {
      // Update the ContactsCustomer to reflect the appropriate IDs
      $contact['ContactsCustomer']['customer_id'] = $id;
      $contact['ContactsCustomer']['contact_id'] = $contact['id'];

      // Save the relationship between customer and contact
      $CM = new ContactsCustomer();
      if (!$CM->save($contact['ContactsCustomer'], false)) {
	$ret = false;
      }
    }

    // Return the result
    return $ret;
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: stats
   *  - Returns summary data from the requested customer.
   */

  function stats($id = null, $query = null) {
    if (!$id)
      return null;

    $this->queryInit($query);

    // REVISIT <AP>: 20090725
    //   We'll need to go directly to the statement entries if
    //   transactions are not always associated with the customer.
    //   This could happen if either we remove the customer_id
    //   field from Transaction, or we allow multiple customers
    //   to be part of the same transaction (essentially making
    //   the Transaction.customer_id meaningless).

/*     $stats = $this->StatementEntry->find */
/*       ('first', array */
/*        ('contain' => false, */
/* 	'fields' => $this->StatementEntry->chargePaymentFields(true), */
/* 	'conditions' => array('StatementEntry.customer_id' => $id), */
/* 	)); */

    $find_stats = $this->StatementEntry->find
      ('first', array
       ('contain' => false,
	'fields' => $this->StatementEntry->chargePaymentFields(true),
	'conditions' => array('StatementEntry.customer_id' => $id),
	));
    $find_stats = $find_stats[0];
/*     pr(compact('find_stats')); */

    $tquery = $query;
    $tquery['conditions'][] = array('StatementEntry.customer_id' => $id);
    $statement_stats = $this->StatementEntry->stats(null, $tquery);
    $statement_stats['balance'] = $statement_stats['Charge']['balance'];
/*     pr(compact('statement_stats')); */

    $tquery = $query;
    //$tquery['conditions'][] = array('StatementEntry.customer_id' => $id);
    $tquery['conditions'][] = array('Transaction.customer_id' => $id);
    $transaction_stats = $this->Transaction->stats(null, $tquery);
    $transaction_stats += $transaction_stats['StatementEntry'];
/*     pr(compact('transaction_stats')); */

    $tquery = $query;
    //$tquery['conditions'][] = array('StatementEntry.customer_id' => $id);
    $tquery['conditions'][] = array('Transaction.customer_id' => $id);
    $ar_transaction_stats = $this->Transaction->stats(null, $tquery,
						     $this->Transaction->Account->accountReceivableAccountID());
    $ar_transaction_stats += $ar_transaction_stats['LedgerEntry'];
/*     pr(compact('ar_transaction_stats')); */

    //$stats = $ar_transaction_stats;
    $stats = $find_stats;
    return $stats;
  }

}
?>