<?php namespace Controllers\Admin;

use AdminController;
use Cartalyst\Sentry\Users\LoginRequiredException;
use Cartalyst\Sentry\Users\PasswordRequiredException;
use Cartalyst\Sentry\Users\UserExistsException;
use Cartalyst\Sentry\Users\UserNotFoundException;
use HTML;
use URL;
use Config;
use DB;
use Input;
use User;
use Asset;
use Lang;
use Actionlog;
use Location;
use Setting;
use Redirect;
use Sentry;
use Validator;
use View;
use Chumper\Datatable\Facades\Datatable;
use League\Csv\Reader;
use Mail;

class UsersController extends AdminController
{
    /**
     * Declare the rules for the form validation
     *
     * @var array
     */
    protected $validationRules = array(
        'first_name'       => 'required|alpha_space|min:2',
        'last_name'        => 'required|alpha_space|min:2',
		'location_id'      => 'required',
        'email'            => 'required|email|unique:users,email',
        'password'         => 'required|min:6',
        'password_confirm' => 'required|min:6|same:password',
    );

    /**
     * Show a list of all the users.
     *
     * @return View
     */
    public function getIndex()
    {
        // Grab all the users - depending on the scope to include
        $users = Sentry::getUserProvider()->createModel();

        // Do we want to include the deleted users?
	// the with and onlyTrashed calls currently do not work - returns an
	// inconsistent array which cannot be displayed by the blade output

        if (Input::get('withTrashed')) {

            $users = $users->withTrashed();
            //$users = Sentry::getUserProvider()->createModel()->paginate();

        } elseif (Input::get('onlyTrashed')) {

	// this is a tempoary 'fix' to display NO deleted users.
            //$users = Sentry::getUserProvider()->createModel()->whereNotNull('deleted_at')->paginate();
            //$users = Sentry::findAllUsers();
            //$users = users::deletedUsers()->paginate();
            $users = Sentry::getUserProvider()->createModel()->onlyTrashed();
            //$users = users::whereNotNull('deleted_at')->paginate();
            //$users = $users->onlyTrashed();
            //$users = Users::onlyTrashed()->get();
            //$users = Sentry::getUserProvider()->createModel();
        }


        // Paginate the users
        $users = $users->paginate(100000)
            ->appends(array(
                'withTrashed' => Input::get('withTrashed'),
                'onlyTrashed' => Input::get('onlyTrashed'),
            ));

        // Show the page
        return View::make('backend/users/index', compact('users'));
    }

    /**
     * User create.
     *
     * @return View
     */
    public function getCreate()
    {
        // Get all the available groups
        $groups = Sentry::getGroupProvider()->findAll();

        // Selected groups
        $userGroups = Input::old('groups', array());

        // Get all the available permissions
        $permissions = Config::get('permissions');
        $this->encodeAllPermissions($permissions);

        // Selected permissions
        $userPermissions = Input::old('permissions', array('superuser' => -1));
        $this->encodePermissions($userPermissions);

        $location_list = array('' => '') + Location::lists('name', 'id');
        $manager_list = array('' => '') + DB::table('users')
            ->select(DB::raw('concat(first_name," ",last_name) as full_name, id'))
            ->whereNull('deleted_at','and')
            ->orderBy('last_name', 'asc')
            ->orderBy('first_name', 'asc')
            ->lists('full_name', 'id');

		/*echo '<pre>';
		print_r($userPermissions);
		echo '</pre>';
		exit;
		*/

        // Show the page
        return View::make('backend/users/edit', compact('groups', 'userGroups', 'permissions', 'userPermissions'))
        ->with('location_list',$location_list)
        ->with('manager_list',$manager_list)
        ->with('user',new User);

    }

    /**
     * User create form processing.
     *
     * @return Redirect
     */
    public function postCreate()
    {
        // Create a new validator instance from our validation rules
        $validator = Validator::make(Input::all(), $this->validationRules);
		$permissions = Input::get('permissions', array());
		$this->decodePermissions($permissions);
        app('request')->request->set('permissions', $permissions);

        // If validation fails, we'll exit the operation now.
        if ($validator->fails()) {
            // Ooops.. something went wrong
            return Redirect::back()->withInput()->withErrors($validator)->with('permissions',$permissions);
        }

        try {
            // We need to reverse the UI specific logic for our
            // permissions here before we create the user.

            // Get the inputs, with some exceptions
            $inputs = Input::except('csrf_token', 'password_confirm', 'groups','email_user');

			// @TODO: Figure out WTF I need to do this.
            if ($inputs['manager_id']=='') {
            	unset($inputs['manager_id']);
            }

            if ($inputs['location_id']=='') {
            	unset($inputs['location_id']);
            }

            // Was the user created?
            if ($user = Sentry::getUserProvider()->create($inputs)) {

                // Assign the selected groups to this user
                foreach (Input::get('groups', array()) as $groupId) {
                    $group = Sentry::getGroupProvider()->findById($groupId);
                    $user->addGroup($group);
                }

                // Prepare the success message
                $success = Lang::get('admin/users/message.success.create');

                // Redirect to the new user page
                //return Redirect::route('update/user', $user->id)->with('success', $success);
                
                if (Input::get('email_user')==1) {
					// Send the credentials through email
					
					$data = array();
					$data['email'] = e(Input::get('email'));
					$data['first_name'] = e(Input::get('first_name'));
					$data['password'] = e(Input::get('password'));
					
		            Mail::send('emails.send-login', $data, function ($m) use ($user) {
		                $m->to($user->email, $user->first_name . ' ' . $user->last_name);
		                $m->subject('Welcome ' . $user->first_name);
		            });
				}
						
						
                return Redirect::route('users')->with('success', $success);
            }


            // Prepare the error message
            $error = Lang::get('admin/users/message.error.create');

            // Redirect to the user creation page
            return Redirect::route('create/user')->with('error', $error);
        } catch (LoginRequiredException $e) {
            $error = Lang::get('admin/users/message.user_login_required');
        } catch (PasswordRequiredException $e) {
            $error = Lang::get('admin/users/message.user_password_required');
        } catch (UserExistsException $e) {
            $error = Lang::get('admin/users/message.user_exists');
        }

        // Redirect to the user creation page
        return Redirect::route('create/user')->withInput()->with('error', $error);
    }

    /**
     * User update.
     *
     * @param  int  $id
     * @return View
     */
    public function getEdit($id = null)
    {
        try {
            // Get the user information
            $user = Sentry::getUserProvider()->findById($id);

            // Get this user groups
            $userGroups = $user->groups()->lists('group_id', 'name');

            // Get this user permissions
            $userPermissions = array_merge(Input::old('permissions', array('superuser' => -1)), $user->getPermissions());
            $this->encodePermissions($userPermissions);

            // Get a list of all the available groups
            $groups = Sentry::getGroupProvider()->findAll();

            // Get all the available permissions
            $permissions = Config::get('permissions');
            $this->encodeAllPermissions($permissions);

            $location_list = array('' => '') + Location::lists('name', 'id');
            $manager_list = array('' => 'Select a User') + DB::table('users')
            ->select(DB::raw('concat(first_name," ",last_name) as full_name, id'))
            ->whereNull('deleted_at')
            ->where('id','!=',$id)
            ->orderBy('last_name', 'asc')
            ->orderBy('first_name', 'asc')
            ->lists('full_name', 'id');

        } catch (UserNotFoundException $e) {
            // Prepare the error message
            $error = Lang::get('admin/users/message.user_not_found', compact('id'));

            // Redirect to the user management page
            return Redirect::route('users')->with('error', $error);
        }

        // Show the page
        return View::make('backend/users/edit', compact('user', 'groups', 'userGroups', 'permissions', 'userPermissions'))
        ->with('location_list',$location_list)
        ->with('manager_list',$manager_list);
    }

    /**
     * User update form processing page.
     *
     * @param  int  $id
     * @return Redirect
     */
    public function postEdit($id = null)
    {
        // We need to reverse the UI specific logic for our
        // permissions here before we update the user.
        $permissions = Input::get('permissions', array());
        $this->decodePermissions($permissions);
        app('request')->request->set('permissions', $permissions);

        try {
            // Get the user information
            $user = Sentry::getUserProvider()->findById($id);
        } catch (UserNotFoundException $e) {
            // Prepare the error message
            $error = Lang::get('admin/users/message.user_not_found', compact('id'));

            // Redirect to the user management page
            return Redirect::route('users')->with('error', $error);
        }

        //
        $this->validationRules['email'] = "required|email|unique:users,email,{$user->email},email";

        // Do we want to update the user password?
        if ( ! $password = Input::get('password')) {
            unset($this->validationRules['password']);
            unset($this->validationRules['password_confirm']);
            #$this->validationRules['password']         = 'required|between:3,32';
            #$this->validationRules['password_confirm'] = 'required|between:3,32|same:password';
        }

        // Create a new validator instance from our validation rules
        $validator = Validator::make(Input::all(), $this->validationRules);


        // If validation fails, we'll exit the operation now.
        if ($validator->fails()) {
            // Ooops.. something went wrong
            return Redirect::back()->withInput()->withErrors($validator);
        }

        try {
            // Update the user
            $user->first_name  		= Input::get('first_name');
            $user->last_name   		= Input::get('last_name');
            $user->email       		= Input::get('email');
            $user->employee_num		= Input::get('employee_num');
            $user->activated   		= Input::get('activated', $user->activated);
            $user->permissions 		= Input::get('permissions');
            $user->jobtitle 		= Input::get('jobtitle');
            $user->phone 			= Input::get('phone');
            $user->location_id 		= Input::get('location_id');
            $user->manager_id 		= Input::get('manager_id');

            if ($user->manager_id == "") {
                $user->manager_id = NULL;
            }

            if ($user->location_id == "") {
                    $user->location_id = NULL;
            }


            // Do we want to update the user password?
            if ($password) {
                $user->password = $password;
            }

            // Get the current user groups
            $userGroups = $user->groups()->lists('group_id', 'group_id');

            // Get the selected groups
            $selectedGroups = Input::get('groups', array());

            // Groups comparison between the groups the user currently
            // have and the groups the user wish to have.
            $groupsToAdd    = array_diff($selectedGroups, $userGroups);
            $groupsToRemove = array_diff($userGroups, $selectedGroups);

            // Assign the user to groups
            foreach ($groupsToAdd as $groupId) {
                $group = Sentry::getGroupProvider()->findById($groupId);

                $user->addGroup($group);
            }

            // Remove the user from groups
            foreach ($groupsToRemove as $groupId) {
                $group = Sentry::getGroupProvider()->findById($groupId);

                $user->removeGroup($group);
            }

            // Was the user updated?
            if ($user->save()) {
                // Prepare the success message
                $success = Lang::get('admin/users/message.success.update');

                // Redirect to the user page
                return Redirect::route('view/user', $id)->with('success', $success);
            }

            // Prepare the error message
            $error = Lang::get('admin/users/message.error.update');
        } catch (LoginRequiredException $e) {
            $error = Lang::get('admin/users/message.user_login_required');
        }

        // Redirect to the user page
        return Redirect::route('update/user', $id)->withInput()->with('error', $error);
    }

    /**
     * Delete the given user.
     *
     * @param  int  $id
     * @return Redirect
     */
    public function getDelete($id = null)
    {
        try {
            // Get user information
            $user = Sentry::getUserProvider()->findById($id);

            // Check if we are not trying to delete ourselves
            if ($user->id === Sentry::getId()) {
                // Prepare the error message
                $error = Lang::get('admin/users/message.error.delete');

                // Redirect to the user management page
                return Redirect::route('users')->with('error', $error);
            }


            // Do we have permission to delete this user?
            if ($user->isSuperUser() and ! Sentry::getUser()->isSuperUser()) {
                // Redirect to the user management page
                return Redirect::route('users')->with('error', 'Insufficient permissions!');
            }

            if (count($user->assets) > 0) {

                // Redirect to the user management page
                return Redirect::route('users')->with('error', 'This user still has '.count($user->assets).' assets associated with them.');
            }

            if (count($user->licenses) > 0) {

                // Redirect to the user management page
                return Redirect::route('users')->with('error', 'This user still has '.count($user->licenses).' licenses associated with them.');
            }

            // Delete the user
            $user->delete();

            // Prepare the success message
            $success = Lang::get('admin/users/message.success.delete');

            // Redirect to the user management page
            return Redirect::route('users')->with('success', $success);
        } catch (UserNotFoundException $e) {
            // Prepare the error message
            $error = Lang::get('admin/users/message.user_not_found', compact('id' ));

            // Redirect to the user management page
            return Redirect::route('users')->with('error', $error);
        }
    }

    /**
     * Restore a deleted user.
     *
     * @param  int  $id
     * @return Redirect
     */
    public function getRestore($id = null)
    {
        try {
            // Get user information
            $user = Sentry::getUserProvider()->createModel()->withTrashed()->find($id);

            // Restore the user
            $user->restore();

            // Prepare the success message
            $success = Lang::get('admin/users/message.success.restored');

            // Redirect to the user management page
            return Redirect::route('users')->with('success', $success);
        } catch (UserNotFoundException $e) {
            // Prepare the error message
            $error = Lang::get('admin/users/message.user_not_found', compact('id'));

            // Redirect to the user management page
            return Redirect::route('users')->with('error', $error);
        }
    }


    /**
     * Get user info for user view
     *
     * @param  int  $userId
     * @return View
     */
    public function getView($userId = null)
    {

        $user = Sentry::getUserProvider()->createModel()->find($userId);

            if (isset($user->id)) {
                return View::make('backend/users/view', compact('user'));
            } else {
                // Prepare the error message
                $error = Lang::get('admin/users/message.user_not_found', compact('id' ));

                // Redirect to the user management page
                return Redirect::route('users')->with('error', $error);
            }

    }

    public function getDatatable()
    {
        return Datatable::collection(User::all())
        ->addColumn('name',function ($model) {
                $name = HTML::image($model->gravatar(), $model->first_name, array('class'=>'img-circle avatar hidden-phone', 'style'=>'max-width: 45px'));
                $name .= HTML::link(URL::action('Controllers\Admin\UsersController@getView', $model->id), $model->first_name . ' ' . $model->last_name, array('class' => 'name'));
                return $name;
            }
        )
        ->showColumns('email')
        ->addColumn('assets', function ($model) {
                $assets = $model->assets->count();
                return $assets;
            }
        )
        ->addColumn('licenses', function ($model) {
                $licenses = $model->licenses->count();
                return $licenses;
            }
        )
        ->addColumn('activated', function ($model) {
                $activated = $model->isActivated() ? '<i class="icon-ok"></i>' : '';
                return $activated;
            }
        )
        ->make();
    }

    /**
     * Unsuspend the given user.
     *
     * @param  int      $id
     * @return Redirect
     */
    public function getUnsuspend($id = null)
    {
        try {
            // Get user information
            $user = Sentry::getUserProvider()->findById($id);

            // Check if we are not trying to unsuspend ourselves
            if ($user->id === Sentry::getId()) {
                // Prepare the error message
                $error = Lang::get('admin/users/message.error.unsuspend');

                // Redirect to the user management page
                return Redirect::route('users')->with('error', $error);
            }

            // Do we have permission to unsuspend this user?
            if ($user->isSuperUser() and ! Sentry::getUser()->isSuperUser()) {
                // Redirect to the user management page
                return Redirect::route('users')->with('error', 'Insufficient permissions!');
            }

            // Unsuspend the user
            $throttle = Sentry::findThrottlerByUserId($id);
            $throttle->unsuspend();

            // Prepare the success message
            $success = Lang::get('admin/users/message.success.unsuspend');

            // Redirect to the user management page
            return Redirect::route('users')->with('success', $success);
        } catch (UserNotFoundException $e) {
            // Prepare the error message
            $error = Lang::get('admin/users/message.user_not_found', compact('id' ));

            // Redirect to the user management page
            return Redirect::route('users')->with('error', $error);
        }
    }

    public function getClone($id = null)
    {
        // We need to reverse the UI specific logic for our
        // permissions here before we update the user.
        $permissions = Input::get('permissions', array());
        $this->decodePermissions($permissions);
        app('request')->request->set('permissions', $permissions);


        try {
            // Get the user information
            $user_to_clone = Sentry::getUserProvider()->findById($id);
            $user = clone $user_to_clone;
            $user->first_name = '';
            $user->last_name = '';
            $user->email = substr($user->email, ($pos = strpos($user->email, '@')) !== false ? $pos  : 0);;
            $user->id = null;

            // Get this user groups
            $userGroups = $user_to_clone->groups()->lists('group_id', 'name');

            // Get this user permissions
            $userPermissions = array_merge(Input::old('permissions', array('superuser' => -1)), $user_to_clone->getPermissions());
            $this->encodePermissions($userPermissions);

            // Get a list of all the available groups
            $groups = Sentry::getGroupProvider()->findAll();

            // Get all the available permissions
            $permissions = Config::get('permissions');
            $this->encodeAllPermissions($permissions);

            $location_list = array('' => '') + Location::lists('name', 'id');
            $manager_list = array('' => 'Select a User') + DB::table('users')
            ->select(DB::raw('concat(first_name," ",last_name) as full_name, id'))
            ->whereNull('deleted_at')
            ->where('id','!=',$id)
            ->orderBy('last_name', 'asc')
            ->orderBy('first_name', 'asc')
            ->lists('full_name', 'id');

                // Show the page
            return View::make('backend/users/edit', compact('groups', 'userGroups', 'permissions', 'userPermissions'))
                ->with('location_list',$location_list)
                ->with('manager_list',$manager_list)
                ->with('user',$user)
                ->with('clone_user',$user_to_clone);

        } catch (UserNotFoundException $e) {
            // Prepare the error message
            $error = Lang::get('admin/users/message.user_not_found', compact('id'));

            // Redirect to the user management page
            return Redirect::route('users')->with('error', $error);
        }
    }
    
    /**
	 * User import.
	 *
	 * @return View
	 */
	public function getImport()
	{
		// Get all the available groups
		$groups = Sentry::getGroupProvider()->findAll();
		// Selected groups
		$selectedGroups = Input::old('groups', array());
		// Get all the available permissions
		$permissions = Config::get('permissions');
		$this->encodeAllPermissions($permissions);
		// Selected permissions
		$selectedPermissions = Input::old('permissions', array('superuser' => -1));
		$this->encodePermissions($selectedPermissions);
		// Show the page
		return View::make('backend/users/import', compact('groups', 'selectedGroups', 'permissions', 'selectedPermissions'));
	}
	
	
	/**
	 * User import form processing.
	 *
	 * @return Redirect
	 */
	public function postImport()
	{
		
		if (! ini_get("auto_detect_line_endings")) {
			ini_set("auto_detect_line_endings", '1');
		}
		
		$csv = Reader::createFromPath(Input::file('user_import_csv'));	
		$csv->setNewline("\r\n");
		
		if (Input::get('has_header')==1) {
			$csv->setOffset(1); 
		}
		
		$duplicates = '';	
		
		$nbInsert = $csv->each(function ($row) use ($duplicates) {
			
			if (Input::get('activate')==1) {
				$activated = '1'; 
			} else {
				$activated = ''; 
			}


			if (Input::get('generate_password')==1) {
				$pass = substr(str_shuffle("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, 10);
			} else {
				$pass = '';
			}
					
					
			try {	
					// Check if this email already exists in the system
					$user = DB::table('users')->where('email', $row[2])->first();
					if ($user) {					
						$duplicates .= $row[2].', ';
					} else {
						
						$newuser = array(
							'first_name' => $row[0],
							'last_name' => $row[1],
							'email' => $row[2],
							'password' => $pass,
							'activated' => $activated,
							'permissions'	=> '{"user":1}'
						);
							
						DB::table('users')->insert($newuser);
						
						$udpateuser = Sentry::findUserByLogin($row[2]);

					    // Update the user details
					    $udpateuser->password = $pass;
					
					    // Update the user
					    $udpateuser->save();
    
						
						if (Input::get('email_user')==1) {
							// Send the credentials through email
							
							$data = array();
							$data['email'] = $row[2];
							$data['first_name'] = $row[0];
							$data['password'] = $pass;
							
				            Mail::send('emails.send-login', $data, function ($m) use ($newuser) {
				                $m->to($newuser['email'], $newuser['first_name'] . ' ' . $newuser['last_name']);
				                $m->subject('Welcome ' . $newuser['first_name']);
				            });
						}
					}
							
				
			} catch (Exception $e) {
				echo 'Caught exception: ',  $e->getMessage(), "\n";
			}
			return true;
			
			
		});	
		
		return Redirect::route('users')->with('duplicates',$duplicates)->with('success', 'Success');
		
	}

    
}