acm_school.module

<?php

/*
 * @file
 *
 * An educational institution. A school within Acadaman can be registered.
 *
 * Drupal implementation of school module
 */

define('COURSE_REGISTERED', TRUE);
define('COURSE_NOT_REGISTERED', FALSE);

/**
 * Implements hook_menu
 */
function acm_school_menu() {
    global $admission_application_info_label;
 
  $modules = array('uni_school', 'nurspri_school', 'high_school', 'college_school');
  
  $items = array();
  // if variable_get(acm_instance, '') == 1, make this menu item available, else return 404
  if(!variable_get('setup_step', 'done') && variable_get('acm_instance', 0)) {
    $items['setup'] = array(
      'title' => t('Setup Acadaman'),
      'description' => t('Setup Acadaman for the first time'),
      'page callback' => 'acm_school_setup',
      'access callback' => TRUE,
      'type' => MENU_CALLBACK,
    );
  }

  // @deprecated. /setup is used.
  $items['schoolsetup'] = array(
    'title' => t('Setup'),
    'description' => t('School setup'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('acm_school_setup_user_form', 1), // function callback
    'access arguments' => array('setup school'), 
    'access callback' => TRUE // user_access('setup school'). any hook_access works here
  );
  $items['setup/user/add'] = array(
    'title' => t('Setup Acadaman - Add User'),
    'description' => t('Add user(s)'),
    'page callback' => 'drupal_get_form',
    'page arguments' => 'acm_school_setup_user_form', // form id
    'access arguments' => array(),
    'type' => MENU_CALLBACK,
  );
  $items['setup/faculty/add'] = array(
    'title' => t('Setup Acadaman - Add Faculty'),
    'description' => t('Add faculty(s)'),
    'page callback' => 'drupal_get_form',
    'page arguments' => 'acm_school_setup_faculty_form', // form id
    'access arguments' => array(),
    'type' => MENU_CALLBACK,
  );
  // General settings for a school
  $items['admin/settings/school'] = array(
    'title' => t('School Settings'),
    'description' => t('Acadaman school settings'),
    'page callback' => 'acm_school_settings_callback',
    //'access callback' => array('administer nodes'), // change to administer settings
    'access arguments' => array('administer school settings'),
    'type' => MENU_CALLBACK
  );
  // Settings for school admission
  $items['admin/settings/school/admission/%'] = array(
    'title' => t('Configure Admission'),
    'description' => t('School admission settings'),
    'page callback' => 'acm_school_settings_admission_callback',
    'page arguments' => array(4),
    'access arguments' => array('administer school settings'),
    'type' => MENU_CALLBACK
  );
  // View current settings of admission
  $items['admission'] = array(
    'title' => t('Admission'),
    'description' => t('Admission'),
    'page callback' => 'acm_school_admission_view_callback',
    'access arguments' => array('view admission'),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  // callback form for a student application
  $items['admission/apply'] = array(
    'title' => t('Application to [School name]'),
    'description' => t('Student application for admission to a school'),
    //'page callback' => 'acm_school_admission_application_callback',
    'page callback' => 'acm_school_admission_form',
    //'page arguments' => array('acm_school_admission_form'),
    'access arguments' => array(), // create admission application - only anon has access
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  // profile edit
  $items['admission/apply/%acm_school_profile/profile/edit'] = array(
    'title' => 'Edit Profile',
    //'title arguments' => 
    'page callback' => 'acm_school_profile_edit',
    'page arguments' => array(2),
    'access callback' => TRUE, //'acm_school_profile_access',
    'access arguments' => array(), //array(1),
    'type' => MENU_CALLBACK,
    //'load arguments' => array('%uid', '%index')
    'load arguments' => array(2)
  );
  // profile edit urls for the rest of application labels as implemented
  // by different modules
  if($admission_application_info_label) {
    foreach($admission_application_info_label as $key => $label) {
      // remove profile. Already handled by admission/apply/%/profile/edit
      if($key == 'profile') {
        unset($label);
      }
      if($key == 'module') {
        $module = $label;
      }
      // construct the rest of the menu items
      //$items["admission/apply/%$module_admission_$key/%acm_school_profile/edit"] = array(
        
      //);
    }
  }
  // menu items for admission application Information
  foreach(module_implements('admission_application_info') as $module) {
      $info = module_invoke($module, 'admission_application_info');
      foreach($info as $key => $value)
      $items["admission/apply/%acm_school_profile/" . $value['title'] . "/edit"] = array(
        'title' => 'Edit ' . $value['title'],
        //'page callback' => "$module_admission_" . $value['title'] . 'edit',
        'page callback' => $module . '_admission_' . $value['title'] . '_edit',
        'page arguments' => array(2),
        'access callback' => TRUE, 
        'access arguments' => array(),
        'type' => MENU_CALLBACK,
        'load arguments' => array(2)
      );
  }
     /* $items["admission/apply/%acm_school_profile/course/edit"] = array(
        'title' => 'Edit Course',
        'page callback' => 'uni_school_admission_course_edit',
        'page arguments' => array(2),
        'access callback' => TRUE, 
        'access arguments' => array(),
        'type' => MENU_CALLBACK,
        'load arguments' => array(2)
    );*/
  
  // callback to the view of admission applications
  $items['admission/applications'] = array(
    'title' => t('Admission applications'),
    'description' => t('List of applicant admission applications'),
    'page callback' => 'acm_school_admission_applications_list_callback',
    'access arguments' => array(''), // view admission applications
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  // Acadaman custom home
  $items['front'] = array(
    'title' => t('Welcome to Acadaman!'),
    'description' => t('Acadaman dashboard'),
    'page callback' => 'acm_school_frontpage_callback', // hook_dashboard
    'access callback' => TRUE,
    'access arguments' => array(), // access content
    'type' => MENU_CALLBACK
  );
  // Details of a student application to a school
  // A student application is her profile
  // for student admission form @see admission/apply
  $items['application'] = array(
    'title' => t('MyApplication'),
    'description' => t('Student application'),
    'page callback' => 'acm_school_student_application_view_callback',
    'access arguments' => array('view student application'),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
);
  //$items['application/profile/edit'] = array(
  
  //);
    $items['courses'] = array(
      'title' => t('Courses'),
      'description' => t('Student course registration'),
      'page callback' => 'acm_school_student_course_callback',
      //'page arguments' => array(1),
      'access arguments' => array('register course'), // see student module in 'student course'
      'access callback' => TRUE,
      //'load arguments' => array('%map'),
      'type' => MENU_CALLBACK
    );
  if(acm_school_module_exists(array('uni_school', 'college_school'))) {
    $items['programme/%acm_school_programme'] = array(
      'title' => t(''),
      'description' => t(''),
      'page callback' => 'acm_school_programme_callback',
      'page arguments' => array(1),
      'access arguments' => array('view programme'),
      'access callback' => TRUE,
      'load arguments' => array('%map'),
      'type' => MENU_CALLBACK
    );
    /*$items['course/%acm_school_course'] = array(
      'title' => t('Course'),
      'description' => t('Course'),
      'page callback' => 'acm_school_course_callback',
      'page arguments' => array(1),
      'access arguments' => array('view course'),
      'access callback' => TRUE,
      'load arguments' => array('%map'),
      'type' => MENU_CALLBACK
    );*/
    // student course register ajax callback
    $items['courses/ajax/register'] = array(
      'page callback' => 'student_course_register_ajax',
      'access callback' => TRUE,
      'type' => MENU_CALLBACK,
    );
    // settings for course
    $items['admin/settings/school/course/%'] = array(
      'title' => t('Configure Course - %'),
      'description' => t('Course settings'),
      'page callback' => 'acm_school_settings_course_callback',
      'page arguments' => array(4),
      'access arguments' => array('administer course settings'),
      'access callback' => TRUE,
      'load arguments' => array('%map'),
      'type' => MENU_CALLBACK
    );
    // settings for course
    /*$items['admin/settings/school/course/configure/%'] = array(
      'title' => t('Configure %'),
      'description' => t('Course settings'),
      'page callback' => 'acm_school_configure_course_callback',
      'page arguments' => array(1),
      'access arguments' => array('administer course settings'),
      'type' => MENU_CALLBACK
    );*/
    // faculty view and features
    $items['faculty/%acm_school_faculty'] = array(
      'title' => t('Faculty'),
      'description' => t('School Faculty'),
      'page callback' => 'acm_school_faculty_view',
      'page arguments' => array(1),
      'access arguments' => array('view faculty'),
      'access callback' => TRUE,
      'load arguments' => array('%map'),
      'type' => MENU_CALLBACK
    );
    // settings for faculty
    $items['admin/settings/school/faculty/%'] = array(
      'title' => t('Configure Faculty'),
      'description' => t('School faculty settings'),
      'page callback' => 'acm_school_settings_faculty_callback',
      'page arguments' => array(4),
      'access arguments' => array('administer faculty settings'),
      'type' => MENU_CALLBACK
    );
    // The department of a student
    $items['department/%'] = array(
      'title' => t('Department'),
      'description' => t('School Department'),
      'page callback' => 'acm_school_department_view',
      'page arguments' => array(1),
      'access arguments' => array('view department'),
      'access callback' => TRUE,
      'type' => MENU_CALLBACK
    );
    // settings for department
    $items['admin/settings/school/department/%'] = array(
      'title' => t('Configure Department'),
      'description' => t('School department settings'),
      'page callback' => 'acm_school_settings_department_callback',
      'page arguments' => array(4),
      'access arguments' => array('administer department settings'),
      'type' => MENU_CALLBACK
    );
  }
  // programme settings
  $items['admin/settings/school/programme/%'] = array(
    'title' => t('Configure Programme'),
    'description' => t('School programme settings'),
    'page callback' => 'acm_school_settings_programme_callback',
    'page arguments' => array(4),
    'access arguments' => array('administer programme settings'),
    'type' => MENU_CALLBACK
);
  // grade view and features
  $items['grade'] = array(
    'title' => t('Grade'),
    'description' => t('School Grade'),
    'page callback' => 'acm_school_grade_view',
    'access arguments' => array('view grade'),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  // General settings for grade
  $items['admin/settings/school/grade/%'] = array(
    'title' => t('Configure Grade'),
    'description' => t('School grade settings'),
    'page callback' => 'acm_school_settings_grade_callback',
    'page arguments' => array(4),
    'access arguments' => array('administer school settings'), // change to administer grade settiings
    'type' => MENU_CALLBACK
  );
  $items['grade/ahah/grade-system/callback'] = array(
    'page callback' => 'grade_system_dropdown_callback',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  // Config to score a student
  $items['admin/settings/school/score/%'] = array(
    'title' => t('Score a student'),
    'description' => t('Student score'),
    'page callback' => 'acm_school_settings_score_callback',
    'page arguments' => array(4),
    'access arguments' => array('score a student'),
    'type' => MENU_CALLBACK
  );
  $items['score/ahah/programme/callback'] = array(
    'page callback' => 'score_programme_dropdown_callback',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
  );
  $items['score/ahah/course/callback'] = array(
    'page callback' => 'score_course_dropdown_callback',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  $items['score/ahah/score/callback'] = array(
    'page callback' => 'acm_school_score_autotextfields_callback',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  // fees view and features
  $items['fees'] = array(
    'title' => t('Fees'),
    'description' => t('School Fees'),
    'page callback' => 'acm_school_fees_view_callback',
    'access arguments' => array('view fees'),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );  
  // settings for fees
  $items['admin/settings/school/fees'] = array(
    'title' => t('Configure Fees'),
    //'title arguments' => '',
    'description' => t('School fees settings'),
    'page callback' => 'acm_school_settings_fees_callback',
    'access arguments' => array('administer fees settings'),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  $items['admin/settings/school/fees/%'] = array(
    'title' => t('Configure Fees'),
    //'title arguments' => '',
    'description' => t('School fees settings'),
    'page callback' => 'acm_school_settings_fees_callback',
    'page arguments' => array(4),
    'access arguments' => array('administer fees settings'),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  $items['admin/settings/school/fees/%/%/setup'] = array(
    'title' => t('Setup Fees'),
    'description' => t('Setup fees for the institution'),
    'page callback' => 'acm_school_settings_fees_setup_callback',
    'page arguments' => array(4,5),
    'access arguments' => array('administer fees settings'),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );
  // General settings for users
  $items['admin/settings/school/users'] = array(
    
  );
  // myapplication
  // course
  // department
  // mygrades
  // fees
  // dorm
  return $items;
}

/**
 * Implements hook_perm 
 *
 * @return array
 */
function acm_school_perm(){
  return array(
    'administer school settings','view admission','view faculty',
    'administer faculty settings','administer department settings',
    'view student application', 'view student applications', 'setup school',
    'administer course settings', 'administer grade settings',
    'administer fees settings', 'administer programme settings', 'register course', 'score a student'
  );
}

/**
 * Implements hook_acm_roles_perm
 * 
 * Assigns permission(s) to role(s) 
 *
 * @return array
 */
function acm_school_acm_roles_perm() {
  return array(
    'Staff' => 'administer school settings',
    'Staff' => 'view admission',
    'Staff' => 'administer faculty settings',
    'Staff' => 'administer department settings',
    'Staff' => 'administer grade settings',
    'Staff' => 'administer course settings',
    'Staff' => 'administer programme settings',
    'Student' => 'view student application',
    'Staff' => 'view student applications', // view all student applications
    'Staff' => 'setup school',
    'Student' => 'register course',
    'Lecturer' => 'score a student'
  );
}

/**
 * Implements hook_acm_roles 
 * 
 * Defines default roles for the school module
 *
 * @return array
 */
function acm_school_acm_roles() {
  // Available default roles for all school types
  return array('Applicant', 'Student', 'Bursar', 'Supervisor', 'Cleaner', 'Student parent', 'Staff');
}

/**
 * Menu callback to setup acadaman for the first time  
 *
 * Handles the setup process to setup a school for the first time.
 * Setup task items are:
 *  - add-user
 */
function acm_school_setup() {
  global $base_url;
  // module_invoke hook_acm_setup_form
  /*foreach(module_implements('acm_setup_form') as $module) {
    // lists = module_invoke('setup_steps_list');
  }*/
  
  // the first hook defines the steps wc contains the form ids
  // and inside it, it also registers another hook, that keeps tab of the implementation of the steps
  
  // setup_steps_list
  // 
  // setup_steps($step) // called inside setup_step_list. Alternatively, we can just get everything done inside setup_steps
  if(!isset($_GET['step']) | empty($_GET['step'])) {
    $step = 'add-user';
    $output = drupal_get_form('acm_school_setup_user_form');
  }
  
  // this is always called
  if(isset($_GET['step']) && !in_array($_GET['step'], acm_school_reserved_steps())) {
    foreach(module_implements('setup_tasks') as $module) { 
      $output = module_invoke($module, 'setup_tasks');
    }
  }
  
  if($_GET['step'] == 'finished') {
    $output = '<p>' . t('Your school has been setup successfully') . '</p>';
    $output .= '<p>' . t('Please visit the @admin to configure other school settings.', array('@admin' => l('school settings page', $base_url . '/admin/settings/school'))) . '</p>';
    $step = 'done';
    variable_set('setup_step', 'done');
    variable_set('acm_instance', 1);
    // @todo remove /setup from menu_router
  }
  
  return $output;
}

/**
 * Form callback to setup user.
 *
 * Adds the Acadaman user and assigns the staff role. This user
 * is the admin user for this Acadaman instance. 
 *
 * The super-user (uid 1) account is kept with Acadaman for remote
 * administration purposes.
 *
 * @todo Add clearer docs
 */ 
function acm_school_setup_user_form(&$form_state) {
  $form['#attributes'] = array('class' => 'form-horizontal');
  $form['username'] = array(
    '#type' => 'textfield',
    '#title' => 'Username',
    //'#required' => TRUE
  );
  $form['password'] = array(
    
  );
  $form['email'] = array();
  $form['role'] = array();
  
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Save and continue'),
    //'#weight' => 15,
  );
  //watchdog('setup', 'url is @url', array('@url' => $url));
  //$form['#action'] = $url;
  //$form['#redirect'] = FALSE;
  
  // Allow the profile to alter this form. $form_state isn't available
  // here, but to conform to the hook_form_alter() signature, we pass
  // an empty array.
  /*$hook_form_alter = $_GET['profile'] .'_form_alter';
  if (function_exists($hook_form_alter)) {
    $hook_form_alter($form, array(), 'install_configure');
  }*/
  return $form;
  
}

/**
 * acm_school_setup_user_form submit callback
 * @param type $form
 * @param type $form_state 
 */
function acm_school_setup_user_form_submit($form, $form_state) {
  // if validation is successful
  
  // make sure this form id is removed from $form['setup']
  drupal_goto('setup', 'step=setup');
}

/**
 * A list of setup steps
 *
 * @deprecated @see acm_school_setup
 */ 
function acm_school_steps_list($active = NULL) {
  $steps = array('setup-user' => t('Add User'));
  
  // Add steps defined by other modules hook_steps_list implementation.
  foreach(module_implements('steps_list') as $module) {
    $result = module_invoke($module, 'steps_list');
  }
  if(is_array($result)) {
    $steps += $result;
  }
  
  // Add finished step as the last task.
  $steps += array('finished');
  
  // Let the theming function know that 'finished' and 'done'
  // include everything, so every step is completed.
  if (in_array($active, array('finished', 'done'))) {
    $active = NULL;
  }
}

/**
 * called in setup() to verify setup
 * if step == finished or done, redirect to dashboard
 *
 * @deprecated @see acm_school_setup
 */ 
function verify_setup() {
  // Read the variable manually using the @ so we don't trigger an error if it fails.
  $result = @db_query("SELECT value FROM {variable} WHERE name = '%s'", 'install_step');
  if ($result) {
    return unserialize(db_result($result));
  }
}

/**
 * The list of reserved tasks to run in the installer.
 */
function acm_school_reserved_steps() {
  //return array('setup', 'setup-user', 'setup-finished', 'finished', 'done');
  return array('finished', 'done');
}


/**
 * Menu callback for /acadaman 
 */
function acm_school_frontpage_callback() {
  if(!user_is_logged_in()) {
    variable_set('site_frontpage', 'user/login');
    drupal_goto();
  }
  foreach(module_implements('acm_dashboard') as $module) {
    variable_set('site_frontpage', 'front');
    return module_invoke($module, 'acm_dashboard'); 
  }
}

/**
 * Implements hook_acm_dashboard 
 * 
 * @todo Implement activity stream for the dashboard in an IFrame
 */
function acm_school_acm_dashboard() {
  global $user;
  drupal_set_title('Welcome to Acadaman!');
  //(array)$user->profile = acm_school_profile_load($user->uid);
  $content = array('name' => 'Dashboard');
  //$content['profile'] = $user->profile;
  //dsm($user->profile);
  $content['profile_card'] = theme('profile_card', $user->profile);
  
  $updates = array(t('Updates'));
  //$content['updates'] = theme('updates', $updates);
  $content['updates'] = t('Updates');
  //$title = 'Dashboard';
  // common dashboard not dependent on role type
  //return theme('item_list', $items, $title);
  return theme('acm_dashboard', $content);
}

/**
 * @see acm_school_theme
 */ 
function theme_profile_card($profile) {
  $picture = theme('profile_picture', $profile['picture']);
  $fullnames = theme('fullnames', $profile);
  $output = "<div>$picture $fullnames</div>";
  return $output;
}

/**
 * Theme user fullnames
 *
 * @see acm_school_theme
 */ 
function theme_fullnames($profile) {
  $firstname = $profile['firstname'];
  $lastname = $profile['lastname'];
  $fullnames = implode(' ', array($firstname, $lastname));
  return "<h3>$fullnames</h3>";
}

/**
 * Theme user profile picture
 *
 * @see acm_school_theme
 */ 
function theme_profile_picture($profile) {
  $picture = $profile['picture'];
  return theme('image', $picture);
}

function theme_updates($updates) {
  
}

/**
 * Implements hook_FORM_ID_alter
 */ 
function acm_school_form_user_login_alter(&$form, $form_state) {
  
  // Ensure a valid submit array.
  $form['#submit'] = is_array($form['#submit']) ? $form['#submit'] : array();

  // Replace core's registration function with custom registration function.
  // Put the custom submit handler first, so other submit handlers have a valid
  // user to work with upon registration.
  $key = array_search('user_login_submit', $form['#submit']);
  if ($key !== FALSE) {
    unset($form['#submit'][$key]);
  }
  array_unshift($form['#submit'], 'acm_school_user_login_submit');
}

/**
 * Submit callback to login a user.
 *
 * @see acm_school_form_user_login_alter
 */ 
function acm_school_user_login_submit($form, &$form_state) {
  global $user;
  // if variable_get('acm_instance', 1) == 1 // set by drush during install
  // redirect to /setup
  // return;
  // else
  //if (variable_get('acm_instance', '') == TRUE && $user->uid) {// the eduerp admin
  if(variable_get('acm_instance', 0) && $user->uid) {
    watchdog('login', 'logged in user has access and logs in successfully');
    $form_state['redirect'] = 'setup';
    return;
  } else {
    if ($user->uid) {
      // set instance variable to 0 after completion of the post-install steps
      variable_set('site_frontpage', 'front');
      //$form_state['redirect'] = 'user/'. $user->uid; // /acadaman (the dashboard)
      $form_state['redirect'] = '';
      return;
    }
  }
} 

/**
 * Implements hook_FORM_ID_alter
 */ 
function acm_school_form_search_theme_form_alter(&$form, $form_state) {
  $form['search_theme_form']['#title'] = '';
  $form['search_theme_form']['#attributes'] = array('class' => 'span3');
  $form['submit']['#attributes'] = array('class' => 'hidden');
}

/**
 * Implements hook_theme 
 */
function acm_school_theme() {
  $template_path = array('path' => drupal_get_path('module', 'acm_school') . '/templates');
  
  $theme = array(
    'course' => array(
      'arguments' => array('node' => NULL, 'course' => NULL),
      //'template' => 'course',
    ),
    'acm_dashboard' => $template_path + array(
      'arguments' => array('content' => NULL),
      'template' => 'acm_dashboard', // acm_dashboard is implemented as template hook. To implement as function, remove this line
    ),
    'school_settings' => $template_path + array(
      'arguments' => array('school_settings' => NULL),
      'template' => 'school_settings',
    ),
    'faculty_view' => $template_path + array(
      'arguments' => array('faculty' => NULL),
      'template' => 'faculty'
    ),
    'department_view' => $template_path + array(
      'arguments' => array('department' => NULL),
      'template' => 'department'
    ),
    'grade_view' => array(
      'arguments' => array('grade' => NULL),
      //'template' => 'grade'
    ),
    'fees_view' => $template_path + array(
      'arguments' => array('fees' => NULL),
      'template' => 'fees'
    ),
    'fees_item_list' => array(
      'arguments' => array('view' => NULL)
    ),
    'admission_view' => $template_path + array(
      'arguments' => array('admission' => NULL),
      'template' => 'admission'
    ),
    'student_application' => array( // student application
      'arguments' => array('student_application' => NULL),
      //'template' => 'student_application'
  ),
  'student_course' => array(
    'arguments' => array('student_course' => NULL)
  ),
    'admission_applications' => array(
      'arguments' => array('admission_applications' => NULL),
    ),
    'profile_picture' => array(
      'arguments' => array('profile' => NULL)
    ),
    'fullnames' => array(
      'arguments' => array('profile' => NULL)
    ),
    'profile_card' => array(
      'arguments' => array('profile' => NULL)
    ),
    'updates' => array(
      'arguments' => array('updates' => NULL)
  ),
  'student_profile_form' => array(
    'arguments' => array('form' => NULL)
  ),
  );
  
  return $theme;
}

/**
 * Implements hook_acm_school_info 
 */
function acm_school_acm_school_info() {
  
}

/**
 * Implements hook_acm_school_profile 
 */
function acm_school_acm_school_profile() {
  
}

/**
 * Implements hook_acm_school_analytics 
 */
function acm_school_acm_school_analytics() {
  
}

/**
 * Implements hook_acm_studentprofile 
 * 
 * A student profile is contained in student application
 */
function acm_school_acm_studentprofile($profile) {
  return drupal_get_form("acm_school_student_profile_form", $profile, NULL);
}

/**
 * Form callback handler for student profile form
 *
 * @see acm_school_acm_studentprofile
 */ 
function acm_school_student_profile_form(&$form_state, $profile, $steps_order, $hook = 'profile') {
  $edit = (empty($form_state['values'])) ? (array)$profile : $form_state['values'];

  $form['#attributes'] = array('class' => 'form-horizontal');
  $form['basic'] = array(
    '#type' => 'markup',
    '#value' => '<div style="background:#f6f6f2; padding:5px">Basic Information</div>',
    '#weight' => -30
  );
  $form['firstname'] = array(
    '#type' => 'textfield',
    '#title' => t('First name'),
    '#default_value' => $edit['firstname'],
    '#required' => TRUE,
    /*'#prefix' => '<div class="controls">',
    '#suffix' => '</div>'*/
    '#weight' => -29
  );
  $form['lastname'] = array(
    '#type' => 'textfield',
    '#title' => t('Last name'),
    '#default_value' => $edit['lastname'],
    '#required' => TRUE,
    '#weight' => -28
  );
  $form['other'] = array(
    '#type' => 'textfield',
    '#title' => t('Other'),
    '#default_value' => $edit['other'],
    '#weight' => -27
  );
  $form['email'] = array(
    '#type' => 'textfield',
    '#title' => t('Email'),
    '#default_value' => $edit['email'],
    '#required' => TRUE,
    '#weight' => -26
  );
  $gender = array('M' => 'M', 'F' => 'F');
  $form['gender'] = array(
    '#type' => 'select',
    '#title' => t('Gender'),
    '#options' => $gender,
    '#default_value' => $edit['gender'],
    '#required' => TRUE,
    '#weight' => -25
  );
  // add dob here. YYYY-MM-DD
  // stored as timestamp, converted to individual date
  // elements on retrieval @see date()
  
  $form['phone'] = array(
    '#type' => 'textfield',
    '#title' => t('Phone'),
    '#default_value' => $edit['phone'],
    '#weight' => -24
  );
  $form['mobile'] = array(
    '#type' => 'textfield',
    '#title' => t('Mobile'),
    '#default_value' => $edit['mobile'],
  );
  $form['maritalstatus'] = array(
    '#type' => 'select',
    '#title' => t('Marital status'),
    '#options' => MaritalStatus::listMaritalStatus(),
    '#default_value' => $edit['maritalstatus'],
    '#required' => TRUE,
  );
  $form['nationality'] = array(
    '#type' => 'select',
    '#title' => t('Nationality'),
    '#default_value' => $edit['nationality'],
    '#options' => array(0 => 'Other'), // LocationCountry::listLocationCountry()
    //'#required' => TRUE,
  );
  $form['state'] = array(
    '#type' => 'select',
    '#title' => t('State'),
    '#options' => array(0 => 'Other'), // LocationState::listLocationState()
    '#default_value' => $edit['state'],
    '#required' => TRUE,
  );
  $form['city'] = array(
    '#type' => 'textfield',
    '#title' => t('City'),
    '#default_value' => $edit['city'],
  );
  $form['postalcode'] = array(
    '#type' => 'textfield',
    '#title' => t('Postal or zip code'),
    '#default_value' => $edit['postalcode'],
    '#required' => TRUE
  );
  $form['lga'] = array( // Only applicable to British colonized countries
    '#type' => 'select',
    '#title' => t('LGA'),
    '#options' => array(0 => 'Other'), // LocationLga::listLocationLga()
    '#default_value' => $edit['lga'],
  );
  $form['religion'] = array(
    '#type' => 'select',
    '#title' => t('Religion'),
    '#options' => array(0 => 'Other'),
    '#default_value' => $edit['religion'],
  );
  $form['address1'] = array(
    '#type' => 'textfield',
    '#title' => t('Address1'),
    '#default_value' => $edit['address1'],
    '#required' => TRUE,
  );
  $form['address2'] = array(
    '#type' => 'textfield',
    '#title' => t('Address2'),
    '#default_value' => $edit['address2'],
  );
  
  $form['picture'] = array(
    '#type' => 'file',
    '#title' => t('Photo'),
    '#default_value' => $edit['picture'],
    '#description' => t('upload a photo'),
  );
  $form['signature'] = array(
    '#type' => 'file',
    '#title' => t('Signature'),
    '#default_value' => $edit['signature'],
    '#description' => t('upload your signature'),
  );
  if(!isset($profile['profile_state'])) { // change to !isset($edit)
    $form['submit'] = array(
      '#type' => 'submit',
      '#value' => 'Save and continue',
      '#attributes' => array('class' => 'btn'),
    );
  } else {
    $form['submit'] = array(
      '#type' => 'submit',
      '#value' => 'Save',
      '#attributes' => array('class' => 'btn'),
  );
  }
  // use of _ and setting of it's value as a form element automatically
  // places this in form_state['values'] for easy access in submit and
  // validate functions
  $form['_current'] = array('#type' => 'value', '#value' => $hook);
  $form['_steps'] = array('#type' => 'value', '#value' => $steps_order);
  //$form['_profile'] = array('#type' => 'value', '#value' => $profile);
  $form['_profile'] = array('#type' => 'value', '#value' => $edit);
  $form['#theme'] = array('acm_school_student_profile_form', 'student_profile_form');
  return $form;
}

/**
 * Submit callback for adding or updating a profile
 * 
 * @param type $form
 * @param type $form_state 
 */
function acm_school_student_profile_form_submit($form, &$form_state) {
  $profile = $form_state['values']['_profile'];
  $steps = $form_state['values']['_steps'];
  $current = $form_state['values']['_current'];
  $email = $form_state['values']['email'];

  dsm($form_state['values']);
  /*$maritalstatus = Utils::array_value_given_key($form_state['values']['maritalstatus'], MaritalStatus::listMaritalStatus());
  $form_state['values']['maritalstatus'] = $maritalstatus;
  
  $gender = Utils::array_value_given_key($form_state['values']['gender'], array(1 => 'M', 2 => 'F'));
  $form_state['values']['gender'] = $gender;*/
  
  if($current == 'profile') {
      //$next = current($steps);
      $next = current($current);
  }else if(!next($steps)) {
    $next = next($steps);
  }
  
  $success = FALSE;
  // checks using the email address to know if the account exists before or not
  // if it does, returns false and display a message to continue application
  // from a particular url
  // current = variable_get()
  // next = the next array value starting from current
  // on successful insert, insert into student_application.stepindex = current
  $profile_fields = drupal_get_schema('profile');
  $profile_table = 'profile';
  $profile_items = array();
  $result = db_query("SELECT * FROM {profile} WHERE email = '%s'", $email);
  while($profile_object = db_fetch_object($result)) {
    $profile_items['email'] = $profile_object->email;
  }
  $tracker = db_result(db_query("SELECT step FROM {student_application_tracker} WHERE email = '%s'", $email));
  
  if(!empty($profile_items) && $tracker == 'finished') {
    // @Todo Add in a check for application approval to determine if profile
    // is editable
    // it's an edit for a completed profile
    //drupal_write_record($profile_table, $profile, array('uid','email'));
    drupal_write_record($profile_table, $form_state['values'], 'email');
    $success = TRUE;
    if($success) {
        drupal_set_message('Profile updated successfully');
        // redirect to referrer or stay on same page and set status message
      return;
    }
  }
  if((!empty($profile_items) && $profile_items['email'] == $email) && (isset($tracker) && $tracker != 'finished')) { // tracker is not null and is not equal to finished
    // it is an uncompleted application process
    // do an update
    drupal_write_record($profile_table, $form_state['values'], array('email'));
    drupal_set_message(t('Seems you have an uncompleted application. Please continue <a href="/admission/apply?step=' . $tracker. '&c=' . base64_encode($email) . '">here</a>'), 'error');
    return FALSE;
    // load the profile and redirect to next to continue application
    //drupal_goto('admission/apply', 'step=' . $tracker, 301);
  }
  if(empty($profile_items)) {
    drupal_write_record($profile_table, $form_state['values']);
    // also insert into student_application_tracker
    $tracker_data = array('email' => $email, 'step' => $next['title']);
    drupal_write_record('student_application_tracker', $tracker_data);
    
    // insert into student_applications
    $student_application['profileid'] = db_last_insert_id('profile', 'id');
    $student_application['profileemail'] = $email;
    drupal_write_record('student_application', $student_application);
    
    $success = TRUE;
  }
  if($success) {
    drupal_goto('admission/apply', 'step=' . $next['title'] . '&c=' . base64_encode($email), 301); // encode the email into the url
  }
}

/**
 * Save or update profile object 
 */
function acm_school_profile_save($profile, $data) {
  
}

/**
 * Implements hook_acm_faculty 
 */
function acm_school_acm_faculty() {
  
}

/**
 * Implements hook_acm_department 
 */
function acm_school_acm_department() {
  
}

/**
 * Menu callback for course menu 
 */
function acm_school_course_callback($course = null) {
  // get the current user
  global $user;
  
  // validate access privileges
  
  
  return module_invoke_all('acm_course', $course);
}

/**
 * Implements hook_acm_course 
 */
function acm_school_acm_course($course) {
  // course object
  if(is_null($course)) {
    $course = new stdClass();
    $course->title = 'Course';
  }
  
  // node object
  
  // call theme_course for rendering and display
  return theme('course', $course);
}

/**
 * Implements hook_acm_course_register 
 */
function acm_school_acm_course_register() {
  // get user
  
  // call theme
  
  // invoke callback
}

/**
 *
 * @param type $course 
 */
function theme_course($course) {
  return $course->title;
}

/**
 * theme_acm_dashboard implementation
 */
function theme_acm_dashboard($content) {
  $element = '<div class="">Dashboard</div>';
  return '<p><div>'. t('Dashboard.') .'</div></p>';
  //return theme('markup', $element);
}

/**
 * Implements hook_acm_programme 
 */
function acm_school_acm_programme() {
  
}

/**
 * Implements hook_acm_schoolpublication 
 */
function acm_school_schoolpublication() {
  
}

/**
 * Implements hook_acm_activity 
 */
function acm_school_acm_activity() {
  
}

/**
 * Student application menu callback 
 *
 * @see acm_school_menu
 */
function acm_school_student_application_view_callback() {
  
  // call school implementation of acm_student_application
  foreach(module_implements('acm_student_application') as $module) {
    $student_application = module_invoke($module, 'acm_student_application'); 
  }
  //views_get_view_result($student_application->name, 'default');

  $output = views_embed_view($student_application->name, $student_application->display);
  // call admission_application_info_label()
  foreach(module_implements('student_application_items') as $module) {
      $items = module_invoke($module, 'student_application_items');
  }
  return theme('student_application', $output, $items);
  //return views_embed_view($student_application->name, 'default');
  
  //return theme('student_application', $student_application);
}

/**
 * Implements hook_student_application_items
 * @see acm_school_student_application_view_callback
 */ 
function acm_school_student_application_items() {
  $items = array();
  return $items;
}

/**
 * theme_student_application implementation
 * @see acm_school_theme()
 * 
 * @param type $view
 * @param type $items
 * @return type 
 */
function theme_student_application($view, $items) {
    global $user;
  $output = "<div class='span9'>$view</div>";
  $output .= "<div id='app-menu' class='span3 pull-right'>";
  /*foreach($items as $key => $item) {
    $output .= $item['theme'];
  }*/
  $element = array(
      '#button_type' => 'button',
    '#name' => '',
    '#value' => 'Update'
  );
  //$output .= theme('button', $element);
  // admission/apply/$user->uid/$item[name]/edit
  $output .= '<div style="text-align:right; margin-bottom: 20px">' . l(t('Update'), 'admission/apply/' . $user->uid . '/edit', array('attributes' => array('class' => 'btn acm-link'))) . '</div>';
  if(!empty($items)) {
      $output .= theme('item_list', $items);
  }
  //$output .= "<div class='span3 pull-right'>$items</div>";
  $output .= "</div>";
  return $output;
}

/**
 * Theme function for student course listing page.
 *
 * @see acm_school_menu
 */ 
function theme_student_course($view, $items) {

  $output = "<div class='span9'>$view</div>";
  $output .= "<div id='app-menu' class='span3 pull-right'>";

  //dsm($view);
  // add here js code that adds checkboxes and submit button to the view.
  // drupal_add_js
  drupal_add_js(drupal_get_path('module', 'acm_school') .'/acm_school.js');
  //drupal_add_js("Drupal.behaviors.studentCourse.apply('this, [" + $output + "]')", 'inline', 'footer');
  //drupal_add_js("Drupal.behaviors.studentCourse.apply(this, ['<p>hello</p>'])", 'inline', 'footer');
  $output .= "</div>";
  return $output;
}

/**
 * Implements hook_acm_student_application 
 */
function acm_school_acm_student_application() {
  
}

/**
 * Menu callback for admission/apply 
 *
 * @see acm_school_menu
 */
function acm_school_admission_application_callback() {
  // @Todo
  // Replace with module_invoke of admission_application_info hook
  // parse keys for what isset
  //static $steps_order = array();
  /*foreach(module_implements('admission_application_info') as $module) {
    $admission_form = module_invoke($module, 'admission_application_info');
  }*/
  
  $admission_form = module_invoke_all('admission_application_info');
  
  if(!isset($steps_order)) {
    /*if(isset($admission_form['profile'])){
      $steps_order['profile'] = $admission_form['profile'];
    }*/

    if(isset($admission_form['course'])) {
      $steps_order['course'] = $admission_form['course'];
    }

    if(isset($admission_form['sponsor'])) {
      $steps_order['sponsor'] = $admission_form['sponsor'];
    }

    if(isset($admission_form['nextofkin'])) {
      $steps_order['nextofkin'] = $admission_form['nextofkin'];
    }

    if(isset($admission_form['health'])) {
      $steps_order['health'] = $admission_form['health'];
    }

    if(isset($admission_form['examresults'])) {
      $steps_order['examresults'] = $admission_form['examresults'];
    }
  }
  
  //admission_application_info_label($steps_order);
  
  // all application forms will have implementation in acm_school
  // steps_order only tells us which one to go to next based on what is implemented at admission_application_info
  // in submit, we can simply do $steps_order.next();
  // 
  //drupal_get_form('acm_school_admission_form', $steps_order); 
  call_user_func_array('acm_school_admission_form', $steps_order);
  /*foreach(module_implements('admission_form_id') as $module) {
    $admission_form = module_invoke($module, 'admission_form_id'); 
  }*/
  
  /*$form = drupal_get_form('acm_school_student_profile_form', $edit);
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => 'Save and continue',
    '#attributes' => array('class' => 'btn')
  );
  return $form;*/
  //return drupal_get_form($admission_form, NULL);
}

/**
 * Menu callback for student application
 *
 * @see acm_school_menu
 */
function acm_school_admission_form() {
  global $base_url, $admission_application_info_label;
  
  foreach(module_implements('admission_application_info') as $module) {
    $admission_form = module_invoke($module, 'admission_application_info');
  }
  
  if(!isset($steps_order)) {
    if(isset($admission_form['course'])) {
      $steps_order['course'] = $admission_form['course'];
    }
    if(isset($admission_form['sponsor'])) {
      $steps_order['sponsor'] = $admission_form['sponsor'];
    }
    if(isset($admission_form['nextofkin'])) {
      $steps_order['nextofkin'] = $admission_form['nextofkin'];
    }
    if(isset($admission_form['health'])) {
      $steps_order['health'] = $admission_form['health'];
    }
    if(isset($admission_form['examresults'])) {
      $steps_order['examresults'] = $admission_form['examresults'];
    }
  }
  
  $admission_application_info_label = $steps_order;
  $admission_application_info_label['module'] = $module;
  
  if(!isset($_GET['step']) | empty($_GET['step']) | $_GET['step'] == 'profile') {
    $form = drupal_get_form('acm_school_student_profile_form', NULL, $steps_order);
  }
  if(isset($_GET['step']) && isset($steps_order[$_GET['step']])) {
    $form = drupal_get_form($steps_order[$_GET['step']]['form_id'], NULL, $steps_order, $_GET['step']);
  }
  if($_GET['step'] == 'finished') {
    // update into student_application
    $student_application['status'] = 'Application';
    drupal_write_record('student_application', $student_application, 'id');
    
    $form = t("Thank you. Your application has been submitted successfully. " . '<a href="' . $base_url . '">Continue</a>');
  }
  return $form;
}

/**
 * Menu callback for admission/applications 
 */
function acm_school_admission_applications_list_callback() {
  // module_implements admission_applications_list or admission_applications_report
  foreach(module_implements('admission_applications_list') as $module) {
    $applications = module_invoke($module, 'admission_applications_list'); 
  }
  
  $output = views_embed_view($applications->name);
   
  return theme('admission_applications', $output);
}

/**
 * Renders admission applications view
 *
 * @see acm_school_admission_applications_list_callback
 */ 
function theme_admission_applications($view) {
  return $view;
}

/**
 * Implements hook_acm_admission 
 */
function acm_school_acm_admission() {
  
}

/**
 * Implements hook_acm_grade 
 */
function acm_school_acm_grade() {
  
}

/**
 * Implements hook_acm_grade_reports 
 */
function acm_school_acm_grade_reports() {
  
}

/**
 * Implements hook_acm_attendance 
 */
function acm_school_acm_attendance() {
  
}

function acm_school_preprocess_page(&$vars) {
  global $user;
  // exclude backend pages to avoid core js not working anymore
  // you could also just use a backend theme to avoid this
//  if (arg(0) != 'admin' || !(arg(1) == 'add' && arg(2) == 'edit') || arg(0) != 'panels' || arg(0) != 'ctools') {
//    $scripts = drupal_add_js();
//    $new_jquery = array(drupal_get_path('theme', 'acadaman_bootstrap') . '/js/jquery-1.7.min.js' => $scripts['core']['misc/jquery.js']);
//    $scripts['core'] = array_merge($new_jquery, $scripts['core']);
//    unset($scripts['core']['misc/jquery.js']);
//    $vars['scripts'] = drupal_get_js('header', $scripts);
//  }

  if(user_is_logged_in() && drupal_is_front_page()) {
    variable_set('site_frontpage', 'front');
    $vars['template_file'] = 'page';
  }
  if(!$user->uid && !drupal_is_front_page()) {
  }
}

/**
 * Implements hook_jqmulti_files
 *
 * Define javascript files that should be processed by jqmulti
 */
function acm_school_jqmulti_files() {
  $files = array(
    drupal_get_path('module', 'acm_school') .'/acm_school.js',
    drupal_get_path('module', 'acm_school') .'/course_materials_edit.js',
    drupal_get_path('module', 'acm_school') .'/scripts/libs/underscore.js',
    drupal_get_path('module', 'acm_school') .'/scripts/lib/jiverscripts/src/oo/class.js',
    drupal_get_path('module', 'acm_school') .'/scripts/lib/jiverscripts/src/conc/next_tick.js',
    drupal_get_path('module', 'acm_school') .'/scripts/lib/jiverscripts/src/conc/observable.js',
    drupal_get_path('module', 'acm_school') .'/scripts/lib/jiverscripts/src/conc/promise.js',
    drupal_get_path('module', 'acm_school') . '/scripts/jive/namespace.js',
    drupal_get_path('module', 'acm_school') . '/scripts/jive/dispatcher.js',
    drupal_get_path('module', 'acm_school') . '/scripts/jive/drupal_rest.js',
    drupal_get_path('module', 'acm_school') . '/scripts/apps/shared/models/drupal_rest_service.js',
    drupal_get_path('module', 'acm_school') . '/scripts/jquery/jquery.define.js',
    drupal_get_path('module', 'acm_school') . '/scripts/jquery/jquery.message.js',
    drupal_get_path('module', 'acm_school') . '/scripts/shared/display_utils.js',
    drupal_get_path('theme', 'acadaman_bootstrap') . '/js/bootstrap.min.js',
  );
  return $files;
}

/**
 * Only called if implementation is via a template and not a theme
 * function
 * 
 * @param type $vars 
 */
function template_preprocess_acm_dashboard(&$vars) {
  $vars['template_files'][] = 'acm_dashboard';
  $hooks = theme_get_registry();
}

function template_preprocess_school_settings(&$vars) {
  $vars['template_files'][] = 'school_settings';
  if($vars['school_settings']['type'] === 'configure') {
    //$vars['semester_settings_form'] = drupal_get_form('uni_school_semester_settings_form'); 
  }
  
  if($vars['school_settings']['type'] === 'admission') {
    //$vars['admission_settings_form'] = drupal_get_form('uni_school_admission_settings_form');
    //$vars['admission_settings_form'] = $x;
  }
}

/**
 * The hook here is student_application
 * @param type $vars 
 */
function template_preprocess_student_application(&$vars) {
}

/**
 * Add or Modify default template variables in a particular hook
 * @param type $variables
 * @param type $hook 
 */
function acm_school_preprocess(&$variables, $hook) {
}

/**
 * Implements hook_FORM_ID_alter
 */ 
function acm_school_form_course_content_node_form_alter($form, &$form_state) {
  if($form['#node']->title == 'Course materials') {
    if(arg(2) == 'edit') {
      // add course_materials_edit.js
      drupal_add_js(drupal_get_path('module', 'acm_school') . '/course_materials_edit.js');
      // remove preview and delete buttons
      unset($form['buttons']['preview']);
      unset($form['buttons']['delete']);

      // Convert all uploaded files to image thumbnail
      $form['buttons']['submit']['#submit'][] = 'acm_school_convert_files_to_image_submit';
      //array_unshift($form['buttons']['submit']['#submit'], 'acm_school_convert_files_to_image_submit');
    }
    
  }
}

/**
 * Converts files to image after successful upload
 *
 * @deprecated
 */
function acm_school_convert_files_to_image_submit($form, &$form_state) {
  // for each newly added files, execute drush command that converts files to imagecache
  // field_file_load(fid) to check if file exists already.
  // If it exist, it must have been converted. So proceed to only files that dont exist
  // use imagecache to create image thumbnail 
  
  // get the nid
  // load the node based on the nid
  // get the current files attached to this node.
  // search for all non-pdf files
  $field_course_materials = $form_state['node']['field_course_materials'];
  $file_properties = array();
  foreach($field_course_materials as $key => $file_widget_settings) {
    if(is_array($file_widget_settings)) {
      $file_properties[] = $file_widget_settings;
    }
  }
  $filepaths = array();
  foreach($file_properties as $uploaded_file) {
    if(isset($uploaded_file['filepath'])) {
      // give me the items that don't end in .pdf
      preg_match("/^(\w*\/)+(.*[^\.pdf])$/i", $uploaded_file['filepath'], $matches);
      $filepaths[] = $matches[0];
    }
  }
  if(!empty($filepaths)) {
    // convert all to pdf
    array_walk(array_filter($filepaths), '_convert_to_pdf');
  }
}

/**
 * @deprecated
 */ 
function _convert_to_pdf($filepath, $index) {
  $file_directory_path = file_directory_path();
  //shell_exec("export HOME=/tmp; libreoffice --headless --invisible --norestore --convert-to pdf --outdir $file_directory_path $filepath");
  // if conversion is successful, replace the original file with the newly
  // converted one

}

/**
 * @todo Replace this with hook_node_$op in Drupal 8
 */ 
function acm_school_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
  
  if($node->type == 'course_content') {
    switch($op) {
      case 'view':
        $node->content['body']['#value'] = views_embed_view('course_materials', 'file_thumbnail_pane');
        return $node;
      // presave:
      // get the non-pdf files

      // insert
      // invoke hook_file_insert to replace the recent saved file(using fid) with the converted one
      // and remove the non-pdf file from the file system.

      // view
    }
  }

}

/**
 * Implementation of hook_theme_registry_alter().
 *
 * Adds support for preprocessors for each defined view.
 * A module with the name myModule can implement a preprocessor for a view
 * called 'myView' by implementing the following preprocessor
 * (note the double underscore):
 *
 * myModule_preprocess_views_view__myView(&$vars) { ... }
 *
 * @param array $theme_registry
 *   The theme registry array passed by reference.
 *
 * @return void
 */
function acm_school_theme_registry_alter(&$theme_registry) {
  // get a list of modules
  $modules = module_list();

  $views = views_get_all_views();

  foreach($modules as $module) {
    foreach($views as $view_name => $view) {
      $theme_registry_key = 'views_view__' . $view_name;
      $function = $module . '_preprocess_' . $theme_registry_key;
      if (!function_exists($function)) {
        continue;
      }

      if (!isset($theme_registry[$theme_registry_key])) {
        $theme_registry[$theme_registry_key] = array();
      }

      // add in the defaults
      $theme_registry[$theme_registry_key] += $theme_registry['views_view'];

      // add the preprocessor function
      $theme_registry[$theme_registry_key]['preprocess functions'][] = $function;
    }
  }
}

function acm_school_preprocess_views_view__course_materials(&$variables) {
  //dsm($variables);
  //dsm(views_get_view('course_materials'));
  //dsm(content_fields('field_course_materials'));
}

/**
 * Implements hook_views_pre_render
 */ 
function acm_school_views_pre_render(&$view) {
  //dsm($view);
}

/**
 * Implements template_process_content_field
 */
function acm_school_preprocess_content_field(&$variables) {
  dsm($variables);
}

/**
 * School settings callback
 * 
 * @todo Move to acm_school.admin.inc 
 */
function acm_school_settings_callback() {
  
  foreach(module_implements('school_settings') as $module) {
    $school_settings = module_invoke($module, 'school_settings');
  }
  
  if(!empty($school_settings)) {
    foreach($school_settings['configure'] as $key => $setting){
      if(isset($setting['callback url'])){
        $school_settings['configure'][$key]['theme'] = l($setting['title'], $setting['callback url']);
      }
    }
  }
  return theme('school_settings', $school_settings);
}

/**
 * Admission settings menu callback at admin/settings/school/admission
 */
function acm_school_settings_admission_callback($type) {
  if(isset($type)){
    foreach(module_implements('admission_settings') as $module) {
      $admission_settings = module_invoke($module, 'admission_settings', $type);
    }
  }
  
  if(!empty($admission_settings)) {
    foreach($admission_settings['admission'] as $key => $setting){
      if(isset($setting['callback url'])){
        $admission_settings['admission'][$key]['theme'] = l($setting['title'], $setting['callback url']);
      }
    }
  }
  
  return theme('school_settings', $admission_settings);
}

/**
 * Admission view menu callback.
 *
 * @todo This callback needs a clear definition.
 *
 * @see acm_school_menu
 */ 
function acm_school_admission_view_callback() {
  
  foreach(module_implements('admission') as $module) {
    $admission_view = module_invoke($module, 'admission');
  }
  $output = views_embed_view($admission_view->name, 'default');
  $items = array('Configure', 'View applications');
  
  return theme('admission_view', $output, $items);
}

/**
 * Theme function to render admission view landing page
 * 
 * @param type $view
 * @param type $items 
 */
function theme_admission_view($view, $items = NULL) {
  $output = "<div class='span9'>$view</div>";
  $output .= "<div class='span3 pull-right'>$items</div>";
  return $output;
}

/**
 * View faculty menu callback 
 */
function acm_school_faculty_view($faculty) {
  foreach(module_implements('faculty') as $module) {
    $faculty_view = module_invoke($module, 'faculty');
  }
  
  // faculty info content
  
  // 
  $output = views_embed_view($faculty_view->name, 'default');
  $items = array();
  
  //return theme('faculty_view', $output, $items);
  return theme('faculty', $output, $items);
}

function theme_faculty_view($view, $items = NULL) {
  $output = "<div class='span9'>$view</div>";
  $output .= "<div class='span3 pull-right'>$items</div>";
  return $output;
}

/**
 * View department menu callback
 */
function acm_school_department_view() {
  foreach(module_implements('department') as $module) {
    $department_view = module_invoke($module, 'department');
  }
  $output = views_embed_view($department_view->name, 'default');
  $items = array();
  
  return theme('department_view', $faculty);
}

/**
 * Renders department views display
 */ 
function theme_department_view($view, $items = NULL) {
  $output = "<div class='span9'>$view</div>";
  $output .= "<div class='span3 pull-right'>$items</div>";
  return $output;
}

/**
 * View grade menu callback
 */
function acm_school_grade_view() {
  foreach(module_implements('grade') as $module) {
    $grade_view = module_invoke($module, 'grade');
  }
  $output = views_embed_view($grade_view->name, 'default');
  $items = array();
  
  return theme('grade_view', $output, $items);
}

/**
 * Renders grade views display
 */ 
function theme_grade_view($view, $items = NULL) {
  $output = "<div class='span9'>$view</div>";
  $output .= "<div class='span3 pull-right'>$items</div>";
  return $output;
}

/**
 * View fees menu callback
 */
function acm_school_fees_view_callback() {
  foreach(module_implements('fees') as $module) {
    $fees = module_invoke($module, 'fees');
  }
  
  return theme('fees_view', $fees);
}

/**
 * faculty settings admin menu callback
 * @return type 
 */
function acm_school_settings_faculty_callback($type) {
  if(isset($type)) {
    foreach(module_implements('faculty_settings') as $module) {
      $faculty_settings = module_invoke($module, 'faculty_settings', $type);
    }
  }
  
  if(!empty($faculty_settings)) {
    foreach($faculty_settings['faculty'] as $key => $setting){
      if(isset($setting['callback url'])){
        $faculty_settings['faculty'][$key]['theme'] = l($setting['title'], $setting['callback url']);
      }
    }
  }
  
  return theme('school_settings', $faculty_settings);
}

function acm_school_settings_department_callback($type) {
  if(isset($type)) {
    foreach(module_implements('department_settings') as $module) {
      $department_settings = module_invoke($module, 'department_settings', $type);
    }
  }
  
  if(!empty($department_settings)) {
    foreach($department_settings['dept'] as $key => $setting){
      if(isset($setting['callback url'])){
        $department_settings['dept'][$key]['theme'] = l($setting['title'], $setting['callback url']);
      }
    }
  }
  
  return theme('school_settings', $department_settings);
}

/**
 * Menu callback for programme settings
 *
 * @see hook_menu
 */
function acm_school_settings_programme_callback($type) {
  if(isset($type)) {
    foreach(module_implements('programme_settings') as $module) {
      $programme_settings = module_invoke($module, 'programme_settings', $type);
    }
  }
  
  if(!empty($programme_settings)) {
    foreach($programme_settings['prog'] as $key => $setting){
      if(isset($setting['callback url'])){
        $programme_settings['prog'][$key]['theme'] = l($setting['title'], $setting['callback url']);
      }
    }
  }
  
  return theme('school_settings', $programme_settings);
}

/**
 * Menu callback to configure course such as add course to a
 * programme 
 * 
 * @deprecated Adding courses is handled within department settings
 * @see acm_school_settings_department_callback
 */
function acm_school_configure_course_callback($type) {
  if(isset($type)) {
    foreach(module_implements('') as $module) {
      $course_configure = module_invoke($module, 'course_configure', $type);
    }
  }
  return theme('school_settings', $course_configure);
}

/**
 * Menu callback to configure a single course. E.g configure CA, marks,
 * maximum exam marks
 * 
 * @param type $course
 * @return type 
 */
function acm_school_settings_course_callback($course) {
  if(isset($course)) {
    foreach(module_implements('course_settings') as $module) {
      $course_settings = module_invoke($module, 'course_settings', $course);
    }
  }
  
  return theme('school_settings', $course_settings);
}

function acm_school_settings_grade_callback($type) {
  if(isset($type)) {
    foreach(module_implements('grade_settings') as $module) {
      $grade_settings = module_invoke($module, 'grade_settings', $type);
    }
  }
  
  if(!empty($grade_settings)) {
    foreach($grade_settings['grade'] as $key => $setting){
      if(isset($setting['callback url'])){
        $grade_settings['grade'][$key]['theme'] = l($setting['title'], $setting['callback url']);
      }
    }
  }
  
  return theme('school_settings', $grade_settings);
}

/**
 *
 * @return theme_fees_settings
 */
function acm_school_settings_fees_callback($type = NULL) {
  if(!isset($type)) {
    $view = views_embed_view('fees_item_list');
    $fees_settings = theme('fees_item_list', $view);
    return $fees_settings;
  }
  foreach(module_implements('fees_settings') as $module) {
    $fees_settings = module_invoke($module, 'fees_settings', $type);
  }
  
  if(!empty($fees_settings)) {
    foreach($fees_settings['fees'] as $key => $setting){
      if(isset($setting['callback url'])){
        $fees_settings['fees'][$key]['theme'] = l($setting['title'], $setting['callback url']);
      }
    }
  }
  
  return theme('school_settings', $fees_settings);
}

/**
 * Menu callback to add/edit/configure Student score
 *
 */
function acm_school_settings_score_callback($type) {
  if(!isset($type)) {
    //$view = views_embed_view('fees_item_list');
    //$fees_settings = theme('fees_item_list', $view);
    //return $fees_settings;
  }
  foreach(module_implements('score_settings') as $module) {
    $score_settings = module_invoke($module, 'score_settings', $type);
  }

  if(!empty($score_settings)) {
    if(isset($score_settings['score'])) {
      foreach($score_settings['score'] as $key => $setting){
        if(isset($setting['callback url'])){
          $score_settings['score'][$key]['theme'] = l($setting['title'], $setting['callback url']);
        }
      }
    }
  }
  
  return theme('school_settings', $score_settings);

}

/**
 * Displays a list of configured fees in the system.
 */ 
function theme_fees_item_list($view) {
  $output = '<div>No fees setup exist. ' . l("Add", "admin/settings/school/fees/add") . '</div>';
  return $output;
}

/**
 * Implements hook_fees_settings 
 */
function acm_school_fees_settings($type) {
  $settings['type'] = 'fees';
  $settings['fees']['add'] = array(
    'title' => 'Add fee item',
    'callback url' => 'admin/settings/school/fees/add'
  );
  $settings['fees']['settings'] = array(
    'title' => 'Global fees settings',
    'callback url' => 'admin/settings/school/fees/settings'
  );
  if($type == 'add') {
    drupal_set_title('Add fee item');
    $settings['fees']['add_fees_form'] = drupal_get_form('acm_school_fees_add_form'); 
  }
  // Global fees settings.
  if($type == 'settings') {
    drupal_set_title('Global fees settings');
    $settings['fees']['fees_settings_form'] = drupal_get_form('acm_school_fees_settings_form');
  }
  return $settings;
}

/**
 * Form callback to add/edit a fee item
 *
 * @see acm_school_fees_settings
 */ 
function acm_school_fees_add_form(&$form_state) {
  $form['#attributes'] = array('class' => 'form-horizontal');
  $form['fee_item_name'] = array(
    '#type' => 'textfield', // generate machine name - make sure it is unique
    '#title' => t('Name'),
    '#description' => t('Human readable name. For example, Tuition'),
    '#default_value' => variable_get('fee_item_name', '')
  );
  $form['fee_item_type'] = array(
    '#type' => 'select',
    '#title' => t('Fee type'),
    '#description' => t('Fee type'),
    '#options' => module_invoke_all('fees_type'), // hook_fees_type - based on fees_type implemented by submodules. FeesType::type
    '#default_value' => variable_get('fee_item_type', '')
  );
  $form['fee_item_description'] = array(
    '#type' => 'textfield',
    '#title' => t('Description'),
    '#description' => t('Describe this fee item'),
    '#default_value' => variable_get('fee_item_description', '')
  );
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => 'Save',
    '#attributes' => array('class' => 'btn'),
  );
  return $form;
}

/**
 * Form submit callback to add fees form.
 *
 * @see acm_school_fees_add_form
 */ 
function acm_school_fees_add_form_submit($form, &$form_state) {
  
}

/**
 * Form callback to configure global fees settings
 *
 * @see acm_school_fees_settings
 */
function acm_school_fees_settings_form(&$form_state) {

  $form['#attributes'] = array('class' => 'form-horizontal');
  $form['activate_second_instalment'] = array(
    '#type' => 'select',
    '#title' => t('Activate second instalment'),
    '#default_value' => variable_get('activate_second_instalment', ''),
    '#options' => array('No', 'Yes'),
    '#description' => t('Whether to activate second instalment for fees payment'),
  );
  $form['late_registration_amount'] = array(
    '#type' => 'textfield',
    '#title' => t('Late registration amount'),
    '#default_value' => variable_get('late_registration_amount', ''),
    '#description' => t('Amount a student should pay for registering late')
  );
  // @todo Introduce a date picker.
  $form['late_registration_start_date'] = array(
    '#type' => 'textfield',
    '#title' => t('Late registration start date'),
    '#default_value' => variable_get('late_registration_start_date', ''),
    '#description' => t('The start date for late registration.')
  );
  return system_settings_form($form);
}

/**
 * Menu callback for admin/settings/school/fees/%/setup
 * 
 * @see acm_school_menu
 * @param type $fee_item 
 *  Is the machine readable name of Fee item name
 * @param String $type
 *  General or Program Specific. By not passing a value signifies General
 *  Fee type
 */
function acm_school_settings_fees_setup_callback($fee_item, $type = NULL) {
  // make sure $fee_item is a machine name represented in the url. Look for the
  // passed $fee_item in FeeItem table. return FALSE if it's not there.
  
  if(isset($type)) {
    // hook_fee_item_setup
  }
  foreach(module_implements('fee_item_setup') as $module) {
    $fees_settings = module_invoke($module, 'fee_item_setup', $fee_item, $type);
  }
  
  return theme('school_settings', $fees_settings);
}

function acm_school_fee_item_setup($fee_item, $type = NULL) {
  $form[''] = array(
    
  );
  return $form;
}

/**
 * Form handler to setup general fee item 
 */
function acm_school_fee_item_setup_form(&$form_state) {
  $form[''] = array(
    
  );
  return $form;
}

/**
 * Form handler to setup program specific fee item
 */
function acm_school_fee_item_program_setup_form(&$form_state) {

  // @todo Add a setting to allow or disallow student course registration prior to fees Payment
}

/**
 * Implements hook_fee_catalog_info 
 * 
 * A group that a particular fee belong to. Acadaman has the following built-in Fee catalog:
 * 
 * - Freshman 
 * - Freshman local 
 * - Freshman international 
 * - Returning student (& spillover) 
 * - Returning student local (& spillover) 
 * - Returning student international (& spillover) 
 * - Local 
 * - Non-local (i.e from another state in the country) 
 * - International
 * 
 * For each fee item, it must belong to at least one catalog 
 * 
 * @see FeeCatalog
 */
function acm_school_fee_catalog_info() {
  
}

/**
 * Implements hook_fee_instalment_type 
 */
function acm_school_fee_instalment_type() {
  
}

/**
 * Menu callback for student course registration page.
 *
 * @see acm_school_menu
 */
function acm_school_student_course_callback() {

  // call school implementation of student_course
  foreach(module_implements('student_course') as $module) {
    $student_courses = module_invoke($module, 'student_course'); 
  }
  //views_get_view_result($student_application->name, 'default');
  $output = views_embed_view($student_courses->name, $student_courses->display);
  //dsm($output);
  drupal_add_js(drupal_get_path('module', 'acm_school') . '/scripts/apps/school/studentcourse/studentcourse_source.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') . '/scripts/apps/school/studentcourse/main.js');
  return theme('student_course', $output, NULL);
  //return views_embed_view($student_application->name, 'default');
}

/**
 * Load a profile per user role 
 */
function acm_school_profile_load($uid) {
  global $user;
  
  if(!is_numeric($uid)) {
    return FALSE;
  }
  // load the user object
  $account = $user;
  $account->uid = $uid;
  
  // load the profile based on uid
  $result = db_query("SELECT * FROM {profile} WHERE uid = %d", $uid);
  while($items = db_fetch_object($result)) { // simply unserialize(items);
    $profile['uid'] = $items->uid;
    $profile['firstname'] = $items->firstname;
    $profile['lastname'] = $items->lastname;
    $profile['email'] = $items->email;
    $profile['address1'] = $items->address1;
    $profile['address2'] = $items->address2;
    $profile['gender'] = $items->gender;
    $profile['dob'] = $items->dob;
    $profile['nationality'] = $items->nationality;
    $profile['state'] = $items->state;
    $profile['city'] = $items->city;
    $profile['lga'] = $items->lga;
    $profile['postalcode'] = $items->postalcode;
    $profile['maritalstatus'] = $items->maritalstatus;
    $profile['phone'] = $items->phone;
    $profile['religion'] = $items->religion;
    $profile['picture'] = $items->picture;
    $profile['signature'] = $items->signature;
    $profile['acadamanid'] = $items->acadamanid;
  }
  
  // add the profile object as a key in $user
  if(!isset($account->profile)) {
    $account->profile = $profile;
  }
  return $account;
}

/**
 * $profile is gotten from uri due to the call of acm_school_profile_load
 * @param type $profile 
 */
function acm_school_profile_edit($profile) {
  $profile->profile['profile_state'] = 'edit';
  return acm_school_acm_studentprofile($profile->profile);
  // return acm_school_acm_{role}profile($profile);
}

/**
 * Determines if more than one module is enabled and installed
 * 
 * @param type $modules
 * @return boolean 
 */
function acm_school_module_exists($modules) {
  $exists = FALSE;
  foreach($modules as $module) {
    if(module_exists($module)) {
      $exists = TRUE;
    }
  }
  return $exists;
}

function acm_school_faculty_load($fid) {
  $faculty = new Faculty();
  // load the profile based on uid
  $result = db_query("SELECT * FROM {faculty} WHERE id = %d", $fid);
  while($items = db_fetch_object($result)) {
    //$faculty->id = $items->id;
    $faculty->setName($items->name);
    //$faculty->machine_name = $items->machine_name;
    $faculty->setDescription($items->description);
    $faculty->setFacultyCode($items->facultycode);
    $faculty->setEmailSubdomain($items->emailsubdomain);
  }
  $fact['id'] = $fid;
  $fact['name'] = $faculty->getName();
  $fact['description'] = $faculty->getDescription();
  $fact['facultycode'] = $faculty->getFacultyCode();
  $fact['emailsubdomain'] = $faculty->getEmailSubdomain();
  return $fact;
}

/**
 * Load a programme from db
 */
function acm_school_programme_load($pid) {
    $programme = new Programme();
    $result = db_query("SELECT * FROM {academic_programme} WHERE id = %d", $pid);
  while($items = db_fetch_object($result)) { // simply unserialize(items);
    $programme->setName($items->name);
    $programme->setDescription($items->description);
    $programme->setAbbr($items->abbr);
    $programme->setDepartment($items->academic_departmentid);
    $programme->setDuration($items->duration);
    $programme->setMaximumDuration($items->maximum_duration);
    $programme->setType($items->type);
    $programme->setMinimumCreditLoad($items->minimum_credit_load);
  }
    $prog['id'] = $pid;
    $prog['name'] = $programme->getName();
    $prog['abbr'] = $programme->getAbbr();
    $prog['description'] = $programme->getDescription();
    $prog['academic_departmentid'] = $programme->getDepartment();
    $prog['duration'] = $programme->getDuration();
    $prog['maximum_duration'] = $programme->getMaximumDuration();
    $prog['type'] = $programme->getType();
    $prog['minimum_credit_load'] = $programme->getMinimumCreditLoad();
  return $prog;
}

/**
 * Load a programme from db
 */
function acm_school_department_load($did) {
    $department = new Department();
    $result = db_query("SELECT * FROM {academic_department} WHERE id = %d", $did);
  while($items = db_fetch_object($result)) { // simply unserialize(items);
    $department->setName($items->name);
    $department->setCode($items->code);
    $department->setFaculty($items->facultyid);
  }
    $dept['id'] = $did;
    $dept['name'] = $department->getName();
    $dept['code'] = $department->getCode();
    $dept['facultyid'] = $department->getFaculty();
    
    return $dept;
}

/**
 * Load a course from db
 */
function acm_school_course_load($cid) {
    $course = new Course();
    $result = db_query("SELECT * FROM {academic_course} WHERE id = %d", $cid);
  while($items = db_fetch_object($result)) { // simply unserialize(items);
    $course->setTitle($items->title);
    $course->setProgramme($items->programme);
    $course->setDepartment($items->department);
    $course->setCode($items->code);
    $course->setDescription($items->description);
    $course->setType($items->type);
    $course->setCreditPoint($items->creditpoint);
    $course->setPrerequisiteCodes($items->prerequisitecodes);
    $course->setPrerequisites($items->prerequisites);
    $course->setLevel($items->level);
    $course->setSemester($items->semester);
    $course->setSession($items->session);
    $course->setLecturerInCharge($items->lecturerincharge);
    $course->setNumberOfCAs($items->numberofcas);
    $course->setCaApprovalMethod($items->caapprovalmethod);
    $course->setTestScore($items->testscore);
    $course->setMaxTestMark($items->maxtestmark);
    $course->setExamScore($items->examscore);
    $course->setMaxExamMark($items->maxexammark);
  }
    $course_arr['id'] = $cid;
    $course_arr['title'] = $course->getTitle();
    $course_arr['programme'] = $course->getProgramme();
    $course_arr['code'] = $course->getCode();
    $course_arr['description'] = $course->getDescription();
    $course_arr['type'] = $course->getType();
    $course_arr['creditpoint'] = $course->getCreditPoint();
    $course_arr['prerequisitecodes'] = $course->getPrerequisiteCodes();
    $course_arr['prerequisites'] = $course->getPrerequisites();
    $course_arr['level'] = $course->getLevel();
    $course_arr['semester'] = $course->getSemester();
    $course_arr['session'] = $course->getSession();
    $course_arr['lecturerincharge'] = $course->getLecturerInCharge();
    $course_arr['numberofcas'] = $course->getNumberOfCAs();
    $course_arr['caapprovalmethod'] = $course->isCaApprovalMethod();
    $course_arr['testscore'] = $course->getTestScore();
    $course_arr['maxtestmark'] = $course->getMaxTestMark();
    $course_arr['examscore'] = $course->getExamScore();
    $course_arr['maxexammark'] = $course->getMaxExamMark();

    return $course_arr;
}    

function acm_school_score_load($sid) {
  $score = new Score();
  $result = db_query("SELECT * FROM {score} WHERE id = %d", $sid);
  while($items = db_fetch_object($result)) { // simply unserialize(items);
    $score->setUid($items->uid);
    $score->setProgramme($items->programme);
    $score->setCourse($items->course);
    $score->setType($items->type);
    $score->setIsLocked($items->islocked);
    $score->setSemester($items->semester);
    $score->setAcademicSession($items->academicsession);
    $score->setOverall($items->overall);
    $score->setScore($items->score);
    $score->setCaScore($items->cascore);
  }
    // TODO: Relocate into a function.
    $uid = $score->getUid();
    $profile = acm_school_profile_load($uid);
    $firstname = $profile->profile['firstname'];
    $lastname = $profile->profile['lastname'];
    $fullnames = array($uid => implode("  ", array($firstname, $lastname)));

    $score_arr['id'] = $sid;
    $score_arr['programme'] = $score->getProgramme();
    $score_arr['course'] = $score->getCourse();
    $score_arr['uid'] = $score->getUid();// turn into an array of key value
    $score_arr['type'] = $score->getType();
    $score_arr['islocked'] = $score->isIsLocked();
    $score_arr['semester'] = $score->getSemester();
    $score_arr['academicsession'] = $score->getAcademicSession();
    $score_arr['overall'] = $score->getOverall();
    $score_arr['exam_score'] = $score->getScore();
    $score_arr['ca_score'] = $score->getCaScore();
    
    return $score_arr;
  
}

/**
 * Load a student grade from db
 */
function acm_school_grade() {

}

function acm_school_create_role($role) {
  module_load_include('inc', 'user', 'user.admin');

  if(!isset($role)) {
    return FALSE;
  }

  $q = $_GET['q'];
  $_GET['q'] = "";
  $form_id = "user_admin_role";
  $form_values = array();
  $form_values['op'] = t('Add role');
  $form_state = array();

  if(is_array($role)) {
    foreach($role as $key => $name) {
      $form_values['name'] = $name;
      $form_state['values'] = $form_values;
      drupal_execute($form_id, $form_state);
      $_GET['q'] = $q; 
    }
    return;
  }
  
  $form_values["name"] = $role;
  $form_state["values"] = $form_values;

  drupal_execute($form_id, $form_state);
  $_GET['q'] = $q; 
}

function acm_school_init() {
  drupal_add_css(drupal_get_path('module', 'acm_school') .'/acm_school.css');
  drupal_add_js(drupal_get_path('module', 'acm_school') .'/acm_school.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') .'/scripts/libs/underscore.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') .'/scripts/lib/jiverscripts/src/oo/class.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') .'/scripts/lib/jiverscripts/src/conc/next_tick.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') .'/scripts/lib/jiverscripts/src/conc/observable.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') .'/scripts/lib/jiverscripts/src/conc/promise.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') . '/scripts/jive/namespace.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') . '/scripts/jive/dispatcher.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') . '/scripts/jive/drupal_rest.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') . '/scripts/apps/shared/models/drupal_rest_service.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') . '/scripts/jquery/jquery.define.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') . '/scripts/jquery/jquery.message.js');
  drupal_add_js(drupal_get_path('module', 'acm_school') . '/scripts/shared/display_utils.js');
  //dsm(views_get_view('uni_grade_view'));

//  module_load_include('inc', 'node', 'node.pages'); // required
//    $node = array('type' => 'mytype');
//    $form_state = array();
//    $form_state['values']['title'] = 'someText2'; // node's title
//    $form_state['values']['field_user']['uid']['uid'] = 955; // user reference. (Example: 1)
//    $form_state['values']['field_value'][0]['value'] = 'someText'; // regular text field
//    $form_state['values']['field_number'][0]['value'] = 10; // regular integer field
//    $form_state['values']['field_checkbox']['value'] = 1; // on/off checkbox field
//    $form_state['values']['op'] = t('Save'); // required value
//    drupal_execute('mytype_node_form', $form_state, (object)$node);
//    // you can probably configure the node-author in $form_state or $node,
//    // but i'm doing it this way to demonstrate the use of $form_state['nid'].
//    // the following lines aren't required, but otherwise the node-author will be "Anonymous" in this case.
//    $node = node_load($form_state['nid']); // nid from the node that gets created is set in $form_state['nid'] after drupal_execute()
//    $node->uid = 1; // set author to admin
//    node_save($node); 
}
/**
 * Process callback to add dependency to form items.
 *
 * Usage:
 *
 * On any form item, add
 * - @code '#process' => 'acm_school_process_dependency' @endcode
 * - @code '#dependency' => array('id-of-form-without-the-#' => array(list, of, values, that, make, this, gadget, visible)); @endcode
 */
function acm_school_process_dependency($element, $edit, &$form_state, &$form) {
  return $element;
}

function acm_school_settings_validate_field($element, &$form_state) {
  switch ($element['#name']) {
    case 'faculty_name':
      if (!preg_match('!^[a-z0-9_]+$!', $element['#value'])) {
        form_error($element, t('The machine-readable name must contain only lowercase letters, numbers, and underscores.'));
      }
      break;
    case 'dept_name':
      if (!preg_match('!^[a-z0-9_]+$!', $element['#value'])) {
        form_error($element, t('The machine-readable name must contain only lowercase letters, numbers, and underscores.'));
      }
      // If user is filling out the feature name for the first time and uses
      // the name of an existing module throw an error.
#      else if (empty($element['#default_value']) && features_get_info('module', $element['#value'])) {
#        form_error($element, t('A module by the name @name already exists on your site. Please choose a different name.', array('@name' => $element['#value'])));
#      }
        break;
    case 'programme_name':
      if (!preg_match('!^[a-z0-9_]+$!', $element['#value'])) {
        form_error($element, t('The machine-readable name must contain only lowercase letters, numbers, and underscores.'));
      }
      break;
  }
}

function acm_school_get_users_in_a_role($rid) {
    // user_roles

    $result = db_query("SELECT uid FROM {users_roles} WHERE rid = %d", $rid);
    $uids = array();
    while($rid = db_fetch_object($result)) {
        $uids[$rid->uid] = $rid->uid;
    }
    //return $rids;
    // select name from users where uid

    $role_uids = implode(', ', $uids);
    $result = db_query("SELECT uid, firstname, lastname FROM {profile} WHERE uid IN ($role_uids)");
    $profile = array();
    while($item = db_fetch_object($result)) {
        $profile[$item->uid] = $item->firstname . ' '. $item->lastname;
    }
    return $profile;
}

/**
 * theme callback for student profile form add and edit
 */ 
function theme_student_profile_form($form) {
    //$output = drupal_render($form['firstname']);
    $output = drupal_render($form);
    return $output;
}

/**
 * Does the very standard things that must be done in any normal callback.
 * Used by each callback in this example module.
 */
function acm_school_callback_helper() {
  $form_state = array('storage' => NULL, 'submitted' => FALSE);
  //$form_state = array('storage' => NULL, 'rebuild' => TRUE);
  $form_build_id = $_POST['form_build_id'];
  $form = form_get_cache($form_build_id, $form_state);
  $args = $form['#parameters'];
  $form_id = array_shift($args);
  $form_state['post'] = $form['#post'] = $_POST;
  // Enable the submit/validate handlers to determine whether AHAH-submittted.
  $form_state['ahah_submission'] = TRUE;
  $form['#programmed'] = $form['#redirect'] = FALSE;
  drupal_process_form($form_id, $form, $form_state);
  $form = drupal_rebuild_form($form_id, $form_state, $args, $form_build_id);
  return $form;
}

/**
 * Callback handler to handle programme selection in score form
 *
 * @see uni_school_score_form for example
 */
function score_programme_dropdown_callback() {

	$form = acm_school_callback_helper();

  $changed_elements = $form['programme_holder'];

  // Prevent duplicate wrappers.
  unset($changed_elements['#prefix'], $changed_elements['#suffix']);

  //$output = theme('status_messages') . drupal_render($changed_elements);

  $output = drupal_render($changed_elements);

  drupal_json(array(
    'status'   => TRUE,
    'data'     => $output,
  ));
  exit();
}

/**
 * Callback handler to handle programme selection in score form
 *
 * @see uni_school_score_form for example
 */
function score_course_dropdown_callback() {

	$form = acm_school_callback_helper();

  $changed_elements = $form['course_holder'];

  // Prevent duplicate wrappers.
  unset($changed_elements['#prefix'], $changed_elements['#suffix']);

  //$output = theme('status_messages') . drupal_render($changed_elements);

  $output = drupal_render($changed_elements);

  drupal_json(array(
    'status'   => TRUE,
    'data'     => $output,
  ));
}

/**
 * Callback handler to handle programme selection in score form
 *
 * @see uni_school_score_form for example
 */
function grade_system_dropdown_callback() {

	$form = acm_school_callback_helper();
  $changed_elements = $form['grade_system_holder'];
  // Prevent duplicate wrappers.
  unset($changed_elements['#prefix'], $changed_elements['#suffix']);
  $output = drupal_render($changed_elements);

  drupal_json(array(
    'status'   => TRUE,
    'data'     => $output,
  ));
  exit();
}

function acm_school_score_autotextfields_callback() {
  
	$form = acm_school_callback_helper();

  $changed_elements = $form['score'];

  // Prevent duplicate wrappers.
  unset($changed_elements['#prefix'], $changed_elements['#suffix']);

  //$output = theme('status_messages') . drupal_render($changed_elements);

  $output = drupal_render($changed_elements);

  drupal_json(array(
    'status'   => TRUE,
    'data'     => $output,
  ));
  exit();
}

/**
 * Ajax callback to student course register
 *
 * @see acm_school_menu
 */
function student_course_register_ajax() {
  global $user;

  // Check if the user is a student.
  if (!in_array('Student', $user->roles)) {
      //
      return FALSE;
  }
  $uid = $user->uid;
  
  // @todo Validate that user has role of Student.

  // as a prerequisite, use the filters to get the student_course

  // get the post data and the query params (which are the filters)
  //save or update into student_course
  // for each of the courses, if course is registered, gray it out.
  // the save or update request invokes a rest service, passing session, level
  // and uid as filters and course id as data.
  // Based on the filters, the service first checks if the user has a course
  // registered that matches the filters. If yes, an update is made else, an
  // insert is made.
  //$filters = http_get_params;
  //$student_courses = StudentCourse::get_student_courses($filters); 
  //print drupal_json($HTTP_RAW_POST_DATA);
  $posted_data = file_get_contents('php://input');
  watchdog('student_course', file_get_contents('php://input'));
  
  if(!isset($posted_data)) {
    watchdog('student_course', 'No data is posted');
    return;
  }
  $posted_data_arr = json_decode($posted_data, true);

  //watchdog('student_course', json_decode($_POST, true));
  // given the courseid, get the totalcreditload from Courses.
  //$courses = Course::getFilteredCourses($posted_student_courses); 
  foreach($posted_data_arr as $key => $course) {
    watchdog('student_course', 'Title is %title', $course['title']);
    db_query("UPDATE {student_course} SET registered = %d, totalcreditload = %d, uid = %d WHERE academic_courseid = %d", COURSE_REGISTERED, $course['creditpoint'], $uid, $course['id']);
  }
  drupal_json($_POST);

  // update the hidden div to give a feedback to the client
  // drupal_add_js(); 
  exit();
}

function acm_school_create_batch_course_content($course_id) {
  watchdog('batch_course_create', 'Course id is %course_id', $course_id);
  $batch = array(
    'operations' => array(
      //array('acm_school_batch_create_course_process', array(t('Course Introduction'), $course_id)),
      //array('acm_school_batch_create_course_process', array(t('Course materials'), $course_id)),
      //array('acm_school_batch_create_course_process', array(t('Course references'), $course_id)),
      array('acm_school_batch_create_course_process', array())
      ),
    'finished' => 'acm_school_batch_create_course_finished',
    'title' => t('Creating new course'),
    'init_message' => t('Course content batch is starting.'),
    'progress_message' => t('Processed @current out of @total.'),
    'error_message' => t('Course content Batch has encountered an error.'),
    //'file' => drupal_get_path('module', 'batch_example') . '/batch_example.inc',
  );
  batch_set($batch);   
}

function acm_school_batch_create_course_process(&$context) {
  $context['sandbox']['progress'] = 0;
  $context['sandbox']['max'] = 3;
  module_load_include('inc', 'node', 'node.pages');
  $results = db_fetch_object(db_query("SELECT MAX(id) as id FROM {academic_course}"));
  //watchdog('batch_course_process', 'Field value is', $field);

  /*$node = array('type' => 'course_content');
  $node_form_state = array();
  $node_form_state['values']['title'] = $options['title'];
  $node_form_state['values']['field_course_ref_id'][0]['value'] = $options['field_course_ref_id'];
  $node_form_state['values']['op'] = t('Save');
  drupal_execute('course_content_node_form', $node_form_state, (object)$node);
  $nid = $node_form_state['nid'];
  $node = node_load($nid);
  $node->uid = 1;
  node_save($node);
  $context['results'][] = check_plain($options['title']);
  if($options['title'] == 'Course Introduction') {
    $context['sandbox']['progress'] = 1;
  }
  if($options['title'] == 'Course materials') {
    $context['sandbox']['progress'] = 2;
  }
  if($options['title'] == 'Course references') {
    $context['sandbox']['progress'] = 3;
  }*/

  $node = array('type' => 'course_content');
  $node_form_state = array();
  $node_form_state['values']['title'] = t('Course Introduction');
  $node_form_state['values']['field_course_ref_id'][0]['value'] = $results->id;
  $node_form_state['values']['op'] = t('Save');
  drupal_execute('course_content_node_form', $node_form_state, (object)$node);
  $nid = $node_form_state['nid'];
  $node = node_load($nid);
  $node->uid = 1;
  node_save($node);
  $context['results'][] = check_plain(t('Course Introduction'));
    
  $node = array('type' => 'course_content');
  $node_form_state = array();
  $node_form_state['values']['title'] = t('Course materials');
  $node_form_state['values']['field_course_ref_id'][0]['value'] = $results->id;
  $node_form_state['values']['op'] = t('Save');
  drupal_execute('course_content_node_form', $node_form_state, (object)$node);
  $nid = $node_form_state['nid'];
  $node = node_load($nid);
  $node->uid = 1;
  node_save($node);
  $context['results'][] = check_plain(t('Course materials'));
  $context['message'] = t('Now processing %node', array('%node' => t('Course materials')));
  
  $node = array('type' => 'course_content');
  $node_form_state = array();
  $node_form_state['values']['title'] = t('Course references');
  $node_form_state['values']['field_course_ref_id'][0]['value'] = $results->id;
  $node_form_state['values']['op'] = t('Save');
  drupal_execute('course_content_node_form', $node_form_state, (object)$node);
  $nid = $node_form_state['nid'];
  $node = node_load($nid);
  $node->uid = 1;
  node_save($node);
  $context['results'][] = check_plain(t('Course references'));

  $context['message'] = t('Now processing %node', array('%node' => t('Course references')));

  // Until $context['finished'] returns true, this will continue to iterate
  /*if ($context['sandbox']['progress'] != $context['sandbox']['max']) {
    $context['finished'] = $context['sandbox']['progress'] / $context['sandbox']['max'];
  }*/
  $context['finished'] = 1;
}

function acm_school_batch_create_course_finished($success, $results, $operations) {
  if ($success) {
    $message = count($results) .' processed.';
    $message .= theme('item_list', $results);
    drupal_set_message($message);
  }
  else {
    // An error occurred.
    // $operations contains the operations that remained unprocessed.
    $error_operation = reset($operations);
    $message = t('An error occurred while processing %error_operation with arguments: @arguments', array('%error_operation' => $error_operation[0], '@arguments' => print_r($error_operation[1], TRUE)));
    drupal_set_message($message, 'error');
  }
}

/**
 * Implements hook_grade_update_score
 *
 * Invoked when a score is updated.
 */
function acm_school_grade_update_score($score) {
  // TODO: Recompute totalscore
  $cascore = $score['ca_score'];
  $examscore = $score['exam_score'];
  $totalscore = $cascore + $examscore;
  // load the grade by score uid and course
  $result = db_query("SELECT * FROM {grade} WHERE uid = %d AND course = %d", $score['uid'], $score['course']);
  $grade = array();
  while($lgrade = db_fetch_object($result)) {
    $grade['studentnumber'] = $lgrade->studentnumber;
    $grade['creditload'] = $lgrade->creditload;
    $grade['dropped'] = $lgrade->dropped;
    $grade['approved'] = $lgrade->approved;
    $grade['submitted'] = $lgrade->submitted;
  }   
  $grade_system_type = variable_get('grade_system_type', '');
  // TODO: If score has changed, recompute grade & gradepoint before updating db.
  switch($grade_system_type) {
    case 'Local country':
      $country = variable_get('country_grade_system', '');
      // include file
      module_load_include('inc', 'acm_school', 'acm_school.grade');
      // invoke function
      $grade = grade_grade_by_country($totalscore, $country);
      $gradepoint = grade_gpe_by_country($grade);
      $dropped = FALSE;
      $creditload = $grade['creditload'];
      $submittedby = $score['submittedby'];
      // Update grade using the loaded score
      db_query("UPDATE {grade} SET exam_score_id = %d, test_score_id = %d, uid = %d, course = %d, studentnumber = '%s', currentgpa = %d, totalscore = %d, grade = '%s', gradepoint = %d, dropped = %d, creditload = %d, approved = %d, submittedby = %d, submitted = %d WHERE uid = %d AND course = %d", $score['exam_score'], $score['ca_score'], $score['uid'], $score['course'], $score['studentnumber'], NULL, $totalscore, $grade, $gradepoint,$grade['dropped'], $creditload,
        $grade['approved'], $score['submittedby'], $grade['submitted'], $score['uid'], $score['course']);
  }
}

/**
 * Implements hook_grade_new_score
 *
 * Invoked when a new score is added.
 */
function acm_school_grade_new_score($score) {
  $cascore = !isset($score['ca_score']) ? 0 : $score['ca_score'];
  $examscore = !isset($score['exam_score']) ? 0 : $score['exam_score'];
  $totalscore = $cascore + $examscore;
  $grade_system_type = variable_get('grade_system_type', '');
  foreach(module_implements('student_number') as $module) { 
    $student_number = module_invoke($module, 'student_number');
  }
  $course = acm_school_course_load($score['course']);
  switch($grade_system_type) {
    case 'Local country':
      $country = variable_get('country_grade_system', '');
      //$func = "grade_system_$country";
      //$grade_system = $func();
      // include file
      module_load_include('inc', 'acm_school', 'acm_school.grade');
      // invoke function
      $grade =  grade_grade_by_country($score, $country);
      $gradepoint = grade_gpe_by_country($grade);
      // $dropped = isCourseDropped(uid, course);
      $dropped = FALSE;
      $creditload = $course['creditpoint'];
      $submittedby = $score['submittedby'];
      // Create new grade
      db_query("INSERT INTO {grade} (exam_score_id, test_score_id, uid, course, matriculationnumber, currentgpa, totalscore, grade, gradepoint, dropped, creditload, approved, submittedby, submitted) VALUES (%d, %d, %d, %d, '%s', %d, %d, '%s', %d, %d, %d, %d, %d, %d)", $score['exam_score'], $score['ca_score'], $score['uid'], $score['course'], $student_number, NULL, $totalscore, $grade, $gradepoint, $dropped, $creditload, FALSE, $submittedby, FALSE); // approved and submitted is FALSE on creation
      // select grade from {grade_system_country} where country = variable_get('', '');
      break;
    case 'WES':
      // return grade_grade($score);
      break;
  }
  //$cascore = !isset($score['ca_score']) ? 0 : $score['ca_score'];
  //$examscore = !isset($score['exam_score']) ? 0 : $score['exam_score'];
  //$totalscore = $cascore + $examscore;
  // $grade = getGrade($totalscore);
  //$currentgpa = ''; // Grade::computeGpa($uid); Not relevant
  //$student_number = ''; // TODO: use hook_student_number instead of matric number
  // $gradepoint = computeGradePoint($grade, $creditload);
  // $dropped = isCourseDropped(uid, course);
  // $creditload = getCreditLoadByCourse(course)
  //$submittedby = $score['submittedby'];
  // Create new grade
  //db_query("INSERT INTO {grade} (exam_score_id, test_score_id, uid, course, matriculationnumber, currentgpa, totalscore, grade, gradepoint, dropped, creditload, approved, submittedby, submitted) VALUES (%d, %d, %d, %d, '%s', %d, %d, '%s', %d, %d, %d, %d, %d, %d)", $score['exam_score'], $score['ca_score'], $score['uid'], $score['course'], $student_number, NULL, $totalscore, $grade, $gradepoint, $dropped, $creditload, FALSE, $submittedby, FALSE); // approved and submitted is FALSE on creation
}

function acm_school_grade_letter($score) {
  $grade_system_type = module_invoke('', 'grade_system_type');
  switch($grade_system_type) {
    case 'Local country':
      $country = variable_get('country_grade_system', '');
      //$func = "grade_system_$country";
      //$grade_system = $func();
      // include file
      // invoke function
      // return grade_grade_by_country($score, $country);
      // select grade from {grade_system_country} where country = variable_get('', '');
      break;
    case 'WES':
      // return grade_grade($score);
      break;
  }
}

/**
 * Implements hook_student_number
 *
 * This is called matric number in high school
 */
function acm_school_student_number() {

}

/**
 * Implements hook_cron
 */
function acm_school_cron() {
  // TODO Automatically create a grade for scores created.
}

/**
 * Implementation of hook_views_api(), register view API information so include files can be loaded
 */
function acm_school_views_api() {
  return array(
    'api' => 2,
    //'path' => drupal_get_path('module', 'acm_school') . '/views',
    'path' => drupal_get_path('module', 'acm_school') . '/includes',
    'template path' => drupal_get_path('module', 'acm_school') . '/templates/views',
  );
}

/**
 * Implements hook_views_pre_view
 */
function acm_school_views_pre_view(&$view, &$display_id, &$args) {
}

/**
 * Implements hook_views_post_render
 */
function acm_school_views_post_render(&$view) {
  if($view->name == "course") {
    $args = $view->args;
    // Load the current course
    $course = acm_school_course_load($args[0]);
    $view->build_info['title'] = $course['title'];
  }
}