<?php

class AccountsController extends AppController {

  var $uses = array('Account', 'LedgerEntry');

  var $sidemenu_links =
    array(array('name' => 'Accounts',        'header' => true),
	  array('name' => 'All',             'url' => array('controller' => 'accounts', 'action' => 'all')),
	  array('name' => 'Asset',           'url' => array('controller' => 'accounts', 'action' => 'asset')),
	  array('name' => 'Liability',       'url' => array('controller' => 'accounts', 'action' => 'liability')),
	  array('name' => 'Equity',          'url' => array('controller' => 'accounts', 'action' => 'equity')),
	  array('name' => 'Income',          'url' => array('controller' => 'accounts', 'action' => 'income')),
	  array('name' => 'Expense',         'url' => array('controller' => 'accounts', 'action' => 'expense')),
	  );


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * override: sideMenuLinks
   *  - Generates controller specific links for the side menu
   */
  function sideMenuLinks() {
    return array_merge(parent::sideMenuLinks(), $this->sidemenu_links);
  }

  
  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * action: index / asset / liability / equity / income / expense / all
   *  - Generate a chart of accounts
   */

  function index()     { $this->all(); }
  function asset()     { $this->gridView('Asset Accounts'); }
  function liability() { $this->gridView('Liability Accounts'); }
  function equity()    { $this->gridView('Equity Accounts'); }
  function income()    { $this->gridView('Income Accounts'); }
  function expense()   { $this->gridView('Expense Accounts'); }
  function all()       { $this->gridView('All Accounts',       'all'); }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * virtuals: gridData
   *  - With the application controller handling the gridData action,
   *    these virtual functions ensure that the correct data is passed
   *    to jqGrid.
   */

  function gridDataSetup(&$params) {
    parent::gridDataSetup($params);
    if (!isset($params['action']))
      $params['action'] = 'all';
  }

  function gridDataCountTables(&$params, &$model) {
    // Our count should NOT include anything extra,
    // so we need the virtual function to prevent
    // the base class from just calling our
    // gridDataTables function
    return parent::gridDataTables($params, $model);
  }

  function gridDataTables(&$params, &$model) {
    return array
      ('link' =>
       array(// Models
	     'CurrentLedger' => array
	     (// Models
	      'LedgerEntry'
	      ),
	     ),
       );
  }

  function gridDataFields(&$params, &$model) {
    $fields = parent::gridDataFields($params, $model);
    return array_merge($fields,
		       $this->Account->Ledger->LedgerEntry->debitCreditFields(true));
  }

  function gridDataConditions(&$params, &$model) {
    $conditions = parent::gridDataConditions($params, $model);

    if (in_array($params['action'], array('asset', 'liability', 'equity', 'income', 'expense'))) {
      $conditions[] = array('Account.type' => strtoupper($params['action']));
    }

    // REVISIT <AP>: 20090811
    //  No security issues have been worked out yet
    $conditions[] = array('Account.level >=' => 10);

    return $conditions;
  }

  function gridDataPostProcessLinks(&$params, &$model, &$records, $links) {
    $links['Account'] = array('name');
    return parent::gridDataPostProcessLinks($params, $model, $records, $links);
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * action: newledger
   *  - Close the current account ledger and create a new one,
   *    carrying forward any balance if necessary.
   */

  function newledger($id = null) {
    $result = $this->Account->closeCurrentLedgers($id);

    if ($result['error']) {
      pr(compact('result'));
      die("Unable to create new ledger.");
      $this->Session->setFlash(__('Unable to create new Ledger.', true));
    }
    if ($id)
      $this->redirect(array('action'=>'view', $id));
    else
      $this->redirect(array('action'=>'index'));
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * action: collected
   *  - Displays the items actually collected for the period
   *    e.g. How much was collected in rent from 4/1/09 - 5/1/09
   */
  function collected($id = null) {
    if (!$id) {
      $this->Session->setFlash(__('Invalid Item.', true));
      $this->redirect(array('action'=>'index'));
    }

    $this->Account->recursive = -1;
    $account = $this->Account->read(null, $id);
    $account = $account['Account'];

    $payment_accounts = $this->Account->collectableAccounts();
    //$payment_accounts[$this->Account->nameToID('Closing')] = 'Closing';
    //$payment_accounts[$this->Account->nameToID('Equity')] = 'Equity';
    //$payment_accounts[$id] = 'Reversals';
    $default_accounts = array_diff_key($this->Account->receiptAccounts(),
				       array($this->Account->concessionAccountID() => 1));
    $this->set(compact('payment_accounts', 'default_accounts'));

    $title = ($account['name'] . ': Collected Report');
    $this->set(compact('account', 'title'));
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * action: view
   *  - Displays information about a specific account
   */

  function view($id = null) {
    $account = $this->Account->find
      ('first',
       array('contain' =>
	     array(// Models
		   'CurrentLedger' =>
		   array('fields' => array('id', 'sequence', 'name')),

		   'Ledger' =>
		   array('CloseTransaction' => array
			 ('order' => array('CloseTransaction.stamp' => 'DESC'))),
		   ),
	     'conditions' => array(array('Account.id' => $id),
				   // REVISIT <AP>: 20090811
				   //  No security issues have been worked out yet
				   array('Account.level >=' => 10),
				   ),
	     )
       );

    if (empty($account)) {
      $this->Session->setFlash(__('Invalid Item.', true));
      $this->redirect(array('action'=>'index'));
    }

    // Obtain stats across ALL ledgers for the summary infobox
    $stats = $this->Account->stats($id, true);
    $stats = $stats['Ledger'];

    $this->sidemenu_links[] =
      array('name' => 'Operations',       'header' => true);
    $this->sidemenu_links[] =
      array('name' => 'New Ledger',       'url' => array('action' => 'newledger', $id));
    $this->sidemenu_links[] =
      array('name' => 'Collected',        'url' => array('action' => 'collected', $id));

    // Prepare to render
    $title = 'Account: ' . $account['Account']['name'];
    $this->set(compact('account', 'title', 'stats'));
  }

}