<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Register extends CI_Controller
{
    public function __construct()
    {
         parent::__construct();
         $this->load->model('user_model', 'user');
    }

    public function index()
    {
        // Check to see if user is allowed to register.
        if ($this->config->item('allow_registration', 'site_configs') == FALSE)
        {
            // Registration is disabled.
            show_404();
        }
        else
        {
            $this->template
                ->title('Project Manager', 'Register')
                ->set_layout('usermanagement_layout_view')
                ->set_partial('header', 'partials/header_view')
                ->set_partial('footer', 'partials/footer_view')
                ->build('register_view');
        }
    }

    public function process()
    {
        // Get defaults for output
        $output_array = $this->general_functions->get_default_output();

        // Load the validation rules from the user model to protect the backend of the system.
        $this->form_validation->set_rules($this->user->rules);

        // Check to see if validation is properly met.
        if ($this->form_validation->run() == FALSE)
    {
            // Form validation did not pass successfully. Report back to the user there was error(s) on the form.
            $output_array['message'] = 'The following form did not validate successfully. Please fix the form errors and try again.';
            $output_array['errors'] = $this->form_validation->error_array();
    }
    else
    {
            // Form validation passed successfully.
            // Set up variables from post data.
            $post_username = $this->input->post('username');
            $post_email_address = $this->input->post('email_address');
            $post_password = $this->input->post('password');

            // Develop a password array from the $post_password variable for hashing.
            $hashed_password = $this->general_functions->generate_password_hash($post_password);

            // Find out if an account already exists with the user's email address. Should return TRUE/FALSE depending on if record is found.
            if ($this->user->is_email_address_available($post_email_address) == FALSE)
            {
                // Retrieve the user data.
                $user_data = $this->user->get_user_data($post_email_address);


                // TODO: Add confirmation inside of status message 1 to ask if user wants message sent to him again.
                $status_messages = array(
                    '1' => 'You have already registered for an account but have not verified your account. Do you need us to send your verification email so you can verify your account? '.anchor('send-again', 'Yes').' or '.anchor('login', 'No'),
                    '2' => 'You have already registered for an account. You may proceed to the login page.'.anchor('login', 'Login'),
                    '3' => 'Your account has been suspended.',
                    '4' => 'You have been banned.',
                    '5' => 'Your account has been deleted.'
                );

                if(array_key_exists($user_data->status_id, $status_messages))
                {
                    $output_array['message'] = $status_messages[$user_data->status_id];
                }
                else
                {
                    $output_array['message'] = 'Oops something happened that we are unaware of so please email the site administrator and we will look into it immediately.';
                }
            }
            else
            {
                // Email Address has not yet registered.

                // Check to see if username is available. Should return TRUE/FALSE depending on if record is found.
                if ($this->user->is_username_available($post_username) == FALSE)
                {
                    // Username already exists.
                    $output_array['message'] = 'The username is not available. Please choose another and try again.';
                }
                else
                {
                    $registration_date = gmdate('Y-m-d H:i:s', time());
                    $registration_key = sha1($registration_date.';;'.$post_email_address.';;'.$hashed_password[0]);

                    // Develop the array of post data for sending to the model.
                    $data = array(
                        'username' => $post_username,
                        'email_address' => $post_email_address,
                        'password' => $hashed_password[0],
                        'password_hash' => $hashed_password[1],
                        'registration_date' => $registration_date,
                        'registration_key' => $registration_key,
                    );

                    // Try to create the user.
                    if ($this->user->create_user($data) == FALSE)
                    {
                        // User was not created successfully.
                        // Report back to the user that was not created succesfully.
                        $output_array['message'] = 'The user was not created successfully.';
                    }
                    else
                    {
                        // User was successfully created and the user needs to verify their account.

                        // Add data to the data array to send in the email.
                        $data['company_name'] = $this->config->item('company_name', 'site_configs');
                        $data['company_email'] = $this->config->item('company_email', 'site_configs');
                        $data['password'] = $post_password;

                        // Send email to user who registered with registry information.
                        $this->general_functions->send_email($this->config->item('company_email', 'site_configs'), $post_email_address, 'Registration for '.$this->config->item('company_name', 'site_configs'), $this->load->view('emails/registration_view', $data, TRUE));

                        // TODO: Send an email to the site administrator letting them know of a new registration.

                        // Report back to the user that the registration was a success.
                        $output_array['status'] = 'success';
                        $output_array['message'] = 'The user was created successfully. Please check your email for the link to activate your account.';
                    }
                }
            }
    }
        echo json_encode($output_array);
    }
}