<?php

/**
 *
 *
 * @ingroup tripal_feature
 */
function tripal_feature_edit_ALL_properties_page($node) {
  $output = '';

  // get the list of properties for this feature
  $values  = array('feature_id' => $node->feature->feature_id);
  $options = array('order_by' => array('type_id' => 'ASC','rank'=>'ASC'));
  $properties = tripal_core_generate_chado_var('featureprop',$values,$options);
  $properties = tripal_core_expand_chado_vars($properties,'field','featureprop.value');
  
  $expand_add = (sizeof($properties)) ? FALSE : TRUE;
  
  // add the appopriate form sections
  $output .= drupal_get_form('tripal_feature_add_ONE_property_form', $node, $expand_add);
  $output .= drupal_get_form('tripal_feature_edit_ALL_properties_form', $node, $properties);
  $output .= drupal_get_form('tripal_feature_implement_back_to_feature_button', $node->nid);

  return $output;
}

/**
 * 
 *
 * @ingroup tripal_feature
 */
function tripal_feature_add_ONE_property_form($form_state, $node, $expand) {
  $form = array();
  $feature_id = $node->feature->feature_id;

  $form['add_properties'] = array(
    '#type' => 'fieldset',
    '#title' => t('Add Property'),
    '#collapsible' => TRUE,
    '#collapsed' => ($expand) ? FALSE : TRUE,
  ); 

  $form['prop_nid'] = array(
    '#type' => 'hidden',
    '#value' => $node->nid
  );
  
  $form['add_properties']['feature_id'] = array(
    '#type' => 'value',
    '#value' => $feature_id,
    '#required' => TRUE
  );
  
  // right now this defaults to the 'feature_property' CV
  // but in the future it should be more flexible
  $form['cv_name'] = array(
    '#type' => 'hidden',
    '#value' => 'feature_property'
  );
	
  // get the list of property types
  $prop_type_options = array();
  $columns = array('cvterm_id','name');
  $values = array(
    'cv_id' => array(
      'name' => $form['cv_name']['#value'],
    )
  );
  $results = tripal_core_chado_select('cvterm',$columns,$values);
  foreach ($results as $r) {
    $prop_type_options[$r->name] = $r->name;
  }

  $form['add_properties']['property'] = array(
    '#type' => 'select',
    '#title' => t('Type of Property'),
    '#options' => $prop_type_options,
  );

  $form['add_properties']['prop_value'] = array(
    '#type' => 'textfield',
    '#title' => t('Value'),
  );

  $form['add_properties']['submit-add'] = array(
    '#type' => 'submit',         
    '#value' => t('Add Property')
  );

  return $form;
}

/**
 * 
 *
 * @ingroup tripal_feature
 */
function tripal_feature_add_ONE_property_form_validate($form, &$form_state) {

   // Only Require if Adding Property
   if ($form_state['clicked_button']['#value'] == t('Add Property') ) {
   
      // Check that there is a feature
      if ( $form_state['values']['feature_id'] <= 0 ) {
         form_set_error('feature_id', 'There is no associated feature.');
      }
		
      // Check that Selected a type
      if ( !$form_state['values']['property']) {
         form_set_error('property', 'Please select a type of property.');
      } 
   } 
}

/**
 * 
 *
 * @ingroup tripal_feature
 */
function tripal_feature_add_ONE_property_form_submit($form, &$form_state) {	
   $feature_id = $form_state['values']['feature_id'];
   $property = $form_state['values']['property'];
   $value = $form_state['values']['prop_value'];       
   $cv_name = $form_state['values']['cv_name'];       
       
   $succes = tripal_feature_insert_property($feature_id,$property,$value,0,$cv_name);
   if($succes){
      drupal_set_message("Successfully Added Property: $property => $value");
   } else {
      drupal_set_message("Failed to Add Property: $property => $value");
   }
}

/**
 * Implements Hook_form()
 * Handles adding of Properties for features
 *
 * @ingroup tripal_feature
 */ 
function tripal_feature_edit_ALL_properties_form($form_state, $node, $properties) {
  $form = array();
  $feature_id = $node->feature->feature_id;
  
  $form['nid'] = array(
    '#type' => 'hidden',
    '#value' => $node->nid
  );
  
  $form['add_properties']['feature_id'] = array(
    '#type' => 'value',
    '#value' => $feature_id,
    '#required' => TRUE
  );
    
  // right now this defaults to the 'feature_property' CV
  // but in the future it should be more flexible
  $form['cv_name'] = array(
    '#type' => 'hidden',
    '#value' => 'feature_property'
  );
  
  if (sizeof($properties)) {
    
    // build the select box options for the property name
    $prop_type_options = array();
    $columns = array('cvterm_id','name');
    $values = array(
       'cv_id' => array(
          'name' => $form['cv_name']['#value']
       )
    );
    $results = tripal_core_chado_select('cvterm',$columns, $values);
    foreach ($results as $r) {
      $prop_type_options[$r->name] = $r->name;
    }
    
    // iterate through all of the properties and create a set of form elements 
    foreach ($properties as $i => $property) {
       $form["num-$i"] = array(
          '#type' => 'fieldset',
          '#value' => "Property $i"
       );      
       $form["num-$i"]["id-$i"] = array(
          '#type' => 'hidden',
          '#value' => $property->featureprop_id
       );      
       $default = array_search($property->type, $prop_type_options);  
       $form["num-$i"]["type-$i"] = array(
          '#type' => 'select',
          '#options' => $prop_type_options,
          '#default_value' => $property->type_id->name
       );     
       $form["num-$i"]["value-$i"] = array(
          '#type' => 'textfield',
          '#default_value' => $property->value
       );      
       $form["num-$i"]["delete-$i"] = array(
          '#type' => 'submit',
          '#value' => t("Delete"),
         '#name' => "delete-$i",
       );
    } //end of foreach property
  
    $form['num_properties'] = array(
      '#type' => 'hidden',
      '#value' => $i
    );
  
    $form["submit-edits"] = array(
      '#type' => 'submit',
      '#value' => t('Update All Properties')
    );
  }
  
  return $form;
}

/**
 * 
 *
 * @ingroup tripal_feature
 */
function tripal_feature_edit_ALL_properties_form_submit($form, &$form_state) {

  $cv_name = $form_state['values']['cv_name'];  
  $feature_id = $form_state['values']["feature_id"];
  $all_good = 1;

  // if the update button was clicked then do the update
  if ($form_state['clicked_button']['#value'] == t('Update All Properties') ) {
     // iterate through each of the properties and set each one               
     for ($i=1; $i<=$form_state['values']['num_properties']; $i++) {
       $featureprop_id = $form_state['values']["id-$i"];
       $property = $form_state['values']["type-$i"];
       $value = $form_state['values']["value-$i"];
       $success = tripal_feature_update_property_by_id($featureprop_id,$property,$value,$cv_name);       
       if(!$success){
          drupal_set_message("Failed to Update Property: $property => $value");
          $all_good = 0;
       }
     }
     if($all_good){
        drupal_set_message("Updated all Properties");
     }
     drupal_goto('node/'.$form_state['values']['nid']);
  } 
  // if the delete button was clicked then remove the property
  elseif (preg_match('/delete-(\d+)/', $form_state['clicked_button']['#name'], $matches) ) {
     $i = $matches[1];
     $featureprop_id = $form_state['values']["id-$i"];
     $property = $form_state['values']["type-$i"];
     $value = $form_state['values']["value-$i"];
     $success = tripal_feature_delete_property_by_id($featureprop_id);
     if($success){
        drupal_set_message("Deleted Property");
     } else {
        drupal_set_message("Unable to Delete Property");
     }
  } else {
    drupal_set_message("Unrecognized Button Pressed",'error');
  }
}
/**
 * 
 *
 * @ingroup tripal_feature
 */
function theme_tripal_feature_edit_ALL_properties_form ($form) {
  $output = '';
  
  $output .= '<br><fieldset>';
  $output .= '<legend>Edit Already Existing Properties<span class="form-optional" title="This field is optional">(optional)</span></legend>';
  $output .= '<p>Below is a list of already existing properties for this feature, one property per line. The type refers to the type of '
  	     .'property and the value is the value for that property. </p>';
  $output .= '<table>';
  $output .= '<tr><th>#</th><th>Type</th><th>Value</th><th></th></tr>';

  for ($i=0; $i<=$form['num_properties']['#value']; $i++) {
    if (isset($form["num-$i"])) {
      $output .= '<tr><td>'.($i+1).'</td><td>'.drupal_render($form["num-$i"]["type-$i"]).'</td><td>'.drupal_render($form["num-$i"]["value-$i"]).'</td><td>'.drupal_render($form["num-$i"]["delete-$i"]).'</td></tr>';
      unset($form["num-$i"]);
    }
  }

  $output .= '</table><br>';
  $output .= drupal_render($form);
  $output .= '</fieldset>';

  return $output;
}

/**
 * 
 *
 * @ingroup tripal_feature
 */
function tripal_feature_list_properties_for_node($properties) {

  if (!empty($properties)) {
    $output = '<table>';
    $output .= '<tr><th>Type</th><th>Value</th></tr>';


    if (!empty($properties) ) {
      foreach ($properties as $p) {
        $output .= '<tr><td>'.$p->type.'</td><td>'.$p->value.'</td></tr>';
      } // end of foreach property
    }

    $output .= '</table>';

  } else {
    $output = 'No properties exist for the current feature';
  }

  return $output;
}