<?php

class Message extends Controller {

  function Message()
  {
    parent::Controller();

    $this->load->helper(array('form', 'url', 'content_render'));
    $this->load->library('form_validation');

    $this->load->model('message_dal');

    if (!$this->sauth->is_logged_in()) {
      redirect('/');
    }
  }



  function index(){}

  function load($message_id)
  {
    $user_id = (int)$this->session->userdata('user_id');
    $message = $this->message_dal->get_message($user_id, $message_id);

    // data is only returned if the user requesting is the recipient or the sender
    if ($message != FALSE) {

      $message = $message->row();

      // if the recipient is reading the message
      if ((int)$message->to_id == $user_id) {
        // if a read receipt was requested
        if ($message->read_receipt == '1' && $message->read == '0') {
          $receipt = array(
            'sender' => $user_id, // reader of the original message
            'recipient' => $message->sender_id, // user who sent the original message
            'subject' => 'Receipt for: '. $message->subject,
            'content' => 'Your message has been read.'
          );

          // new message in the database
          $receipt['id'] = $this->message_dal->new_message(array(
            'subject' => $message->subject,
            'content' => $message->content
          ));

          // send the receipt to the inbox of the original sender
          $this->message_dal->new_inbox($receipt['recipient'], $receipt, '');

          // and put an outbox notification in the outbox of the original recipient
          $this->message_dal->new_outbox($receipt['recipient'], $receipt);
        }

        // if this message is unread, change that
        if ($message->read == '0') {
          $this->message_dal->set_read($user_id, $message_id);
        }

      }

      $this->load->view('shared/header');
      $this->load->view('messages/message', array('message' => $message));
      $this->load->view('shared/footer');

    } else {
      show_404('/message/' . $message_id);
    }
  }

  function send($to = '')
  {
    $user_id = (int)$this->session->userdata('user_id');

    $data = array(
      'to' => str_replace('-', ' ', $to),
      // this is only used by /reply but we're using the same view to make things easier
      'message' => array(
        'recipients' => str_replace('-', ' ', $to),
        'subject' => '',
        'content' => ''
      )
    );

    $this->form_validation->set_message('required', "%s is required");
    $this->form_validation->set_error_delimiters('<li>', '</li>');

    $this->form_validation->set_rules('recipients', 'At least one recipient', 'trim|required|xss_clean');
    $this->form_validation->set_rules('subject', 'Subject', 'trim|required|xss_clean');
    $this->form_validation->set_rules('save_sent', 'Save sent');
    $this->form_validation->set_rules('read_receipt', 'Read receipt');
    $this->form_validation->set_rules('content', 'Content', 'trim|required|xss_clean');

    // process the error checking on the form
    if ($this->form_validation->run()) {

      // array of user names
      $usernames = explode(',', $this->form_validation->set_value('recipients'));

      // TODO: remember why I limited it to 10.
      if (count($usernames) < 11) {


        // translated into user ids
        $user_ids = $this->user_dal->get_user_ids_from_array($this->session->userdata('user_id'), $usernames);

        // make sure the amount of users returned by the database
        // matches how many users we want to message
        if (count($usernames) === $user_ids->num_rows) {
          $recipient_ids = array();
          $have_me_enemied = array();

          // loop through the results to pull out user ids and see if anyone
          // has me enemied
          foreach($user_ids->result() as $row) {
            $recipient_ids[] = (int)$row->id;
            if ($row->type == '2') { // this user has me as their enemy
              $have_me_enemied[] = $row->username;
            }
          }

          // if no one has me enemied
          if (count($have_me_enemied) === 0) {
            // put together the data for a new pm
            $message = array(
              'sender' => (int)$this->session->userdata('user_id'),
              'recipients' => $recipient_ids,
              'subject' => $this->form_validation->set_value('subject'),
              'content' => $this->form_validation->set_value('content')
            );

            // insert a new PM into the database
            $message['id'] = $this->message_dal->new_message($message);

            // loop through all recipients
            foreach($message['recipients'] as $recipient) {

              // send the message and increment the message counter
              $receipt = $this->form_validation->set_value('read_receipt');
              $this->message_dal->new_inbox($recipient, $message, $receipt);

              // if we want to save a message to our outbox
              if ($this->form_validation->set_value('save_sent') == 'save') {
                $this->message_dal->new_outbox($recipient, $message);
              }
            }

            // redirect them to the inbox
            redirect('/messages/inbox');
          }
          // if there was 1 recipient and that 1 person has me enemied
          elseif (count($have_me_enemied) === 1 && count($recipient_ids) === 1) {
            $data['errors'] = "<li>That user has you enemied.</li>";
          }
          // if there were multiple recipients and 1 or more of them have me enemied
          else {
            $data['errors'] = "<li>The following users have you enemied:<ul>";
            foreach($have_me_enemied as $jerk) {
              $data['errors'] .= '<li>'. $jerk .'</li>';
            }
            $data['errors'] .= '</ul></li>';
          }
        }
        // the amount of usernames returned by the database does not
        // match the amount of users we put in the 'to' field
        else {
          $data['errors'] = "<li>One or more of the recipients does not exist</li>";
        }
      } else {
        $data['errors'] = validation_errors();
      }
    }

    $this->load->view('shared/header');
    $this->load->view('messages/send', $data);
    $this->load->view('shared/footer');
  }

  function reply($message_id = 0)
  {
    $user_id = (int)$this->session->userdata('user_id');

    if ($message = $this->message_dal->get_message($user_id, $message_id)) {

      $message = $message->row();
      $subject = $message->subject;

      if (!preg_match('/^RE:/', $subject)) {
        $subject = "RE: " . $subject;
      }

      $data['message'] = array(
        'recipients' => $message->username,
        'subject' => $subject,
        'content' => "\n\n\n-----------------------------\n\n". $message->content
      );
    } else {
      show_404('/message/reply/' . $message_id);
    }

    $this->load->view('shared/header');
    $this->load->view('messages/send', $data);
    $this->load->view('shared/footer');
  }
}

/* End of file message.php */
/* Location: ./application/controllers/message.php */