<?php namespace ProcessWire;

/**
 * ProcessWire Self Profile
 *
 * ProcessWire 3.x (development), Copyright 2015 by Ryan Cramer
 * https://processwire.com
 *
 * 
 * @property array $profileFields Names of fields user is allowed to edit in their profile
 *
 */

class ProcessProfile extends Process implements ConfigurableModule, WirePageEditor {

	public static function getModuleInfo() {
		return array(
			'title' => __('User Profile', __FILE__), // getModuleInfo title          
			'summary' => __('Enables user to change their password, email address and other settings that you define.', __FILE__), // getModuleInfo summary 
			'version' => 101, 
			'permanent' => true, 
			'permission' => 'profile-edit',
			);
	}

	protected $user; 

	public function __construct() {
		$this->set('profileFields', array()); 
	}

	public function init() {
		return parent::init();
	}

	public function ___execute() {
		
		$this->user = $this->wire('user'); 
		$this->headline($this->_("Profile:") . ' ' . $this->user->name); // Primary Headline (precedes the username)
		$form = $this->buildForm();
		
		if($this->input->post->submit_save_profile) {
			$this->processInput($form); 
			$this->session->redirect("./"); 
		} else { 
			return $form->render();
		}
	}	

	/**
	 * Build the form fields for adding a page
	 *
	 */
	protected function buildForm() {

		$form = $this->modules->get('InputfieldForm');

		$form->attr('id', 'ProcessProfile'); 
		$form->attr('action', './'); 
		$form->attr('method', 'post'); 
		$form->attr('enctype', 'multipart/form-data');
		$form->attr('autocomplete', 'off'); 
		$form->addClass('InputfieldFormConfirm');

		foreach($this->user->fields as $field) {
			if($field->name == 'roles' || !in_array($field->name, $this->profileFields)) continue;
			$field = $this->user->fields->getFieldContext($field);
			$inputfield = $field->getInputfield($this->user);
			$inputfield->value = $this->user->get($field->name);
			if($field->name == 'admin_theme' && !$inputfield->value) $inputfield->value = 'AdminThemeDefault';
			if($field->type instanceof FieldtypeFile) $inputfield->noAjax = true; 
			if($field->type instanceof FieldtypeImage) $inputfield->useImageEditor = false;
			if($field->type instanceof FieldtypePassword && $field->name == 'pass') $inputfield->attr('autocomplete', 'off');
			$form->add($inputfield); 
		}

		$field = $this->modules->get('InputfieldSubmit');
		$field->attr('id+name', 'submit_save_profile'); 
		$field->addClass('head_button_clone'); 
		$form->add($field); 
	
		return $form; 
	}

	/**
	 * Save the submitted page add form
	 *
	 */
	protected function processInput(Inputfield $form) {

		$user = $this->user; 
		$form->processInput($this->input->post);

		if(count($form->getErrors())) {
			$this->error($this->_("Profile not saved")); 
			return;
		}

		$user->of(false);
		$user->setTrackChanges(true);

		foreach($user->fields as $field) {

			if($field->name == 'roles' || !in_array($field->name, $this->profileFields)) continue;
			$field = $this->user->fields->getFieldContext($field);
		
			$inputfield = $form->get($field->name); 	
			$value = $inputfield->attr('value'); 
			
			if($field->name == 'email' && strlen($value)) {
				if(count($this->users->find("id!={$user->id}, email=" . $this->sanitizer->selectorValue($value)))) {
					$this->error(sprintf($this->_('Email address "%s" already in use by another user.'), $value));
					continue; 
				}
			}

			if($field->name == 'pass' && empty($value)) continue; 
	
			if($user->get($field->name) !== $value) {	
				$user->set($field->name, $value); 
			}
			
		}

		if($user->isChanged()) {
			$changes = implode(', ', array_unique($user->getChanges())); 
			$message = $this->_('Profile saved') . ' - ' . $changes; 
			$this->message($message);
			$this->wire('log')->message($message); 
			$this->wire('users')->save($user);
		}

		$user->of(true); 

	}

	public function getModuleConfigInputfields(array $data) {

		$profileFields = isset($data['profileFields']) ? $data['profileFields'] : array();
		$fieldOptions = array();
		
		foreach($this->wire('users')->getTemplates() as $template) {
			foreach($template->fieldgroup as $field) {
				$fieldOptions[$field->name] = $field->name;
			}
		}
		
		sort($fieldOptions);

		$inputfields = $this->wire(new InputfieldWrapper());
		$f = $this->wire('modules')->get('InputfieldCheckboxes');
		$f->label = $this->_("What fields can a user edit in their own profile?");
		$f->attr('id+name', 'profileFields');
		
		foreach($fieldOptions as $name) {
			if($name == 'roles') continue;
			$f->addOption($name); 
		}
		
		$f->attr('value', $profileFields);
		$inputfields->add($f);

		return $inputfields;
	}

	/**
	 * For WirePageEditor interface
	 * 
	 * @return Page
	 * 
	 */
	public function getPage() {
		return $this->wire('user');
	}


}