<?php

	class Radio extends CI_Controller {

	public function index()
	{
		// Check Auth
		$this->load->model('user_model');

		// Check if users logged in

		if($this->user_model->validate_session() == 0) {
			// user is not logged in
			redirect('user/login');
		}
		// load the view
		$data['page_title'] = "Hardware Interfaces";

		$this->load->view('interface_assets/header', $data);
		$this->load->view('radio/index');
		$this->load->view('interface_assets/footer');
	}

	function status() {

		// Check Auth
		$this->load->model('user_model');

		// Check if users logged in

		if($this->user_model->validate_session() == 0) {
			// user is not logged in
			redirect('user/login');
		}

		$this->load->model('cat');
		$query = $this->cat->status();
		if ($query->num_rows() > 0)
		{
			echo "<tr class=\"titles\">";
				echo "<td>Radio</td>";
				echo "<td>Frequency</td>";
				echo "<td>Mode</td>";
				echo "<td>Timestamp</td>" ;
				echo "<td>Options</td>";
			echo "</tr>";
			foreach ($query->result() as $row)
			{
				echo "<tr>";
				echo "<td>".$row->radio."</td>";

				if (empty($row->frequency) || $row->frequency == "0") {
					echo "<td>- / -</td>";
				} elseif (empty($row->frequency_rx) || $row->frequency_rx == "0") {
					echo "<td>".$this->frequency->hz_to_mhz($row->frequency)."</td>";
				} else {
					echo "<td>".$this->frequency->hz_to_mhz($row->frequency_rx)." / ".$this->frequency->hz_to_mhz($row->frequency)."</td>";
				}

				if (empty($row->mode) || $row->mode == "non") {
					echo "<td>N/A</td>";
				} elseif (empty($row->mode_rx) || $row->mode_rx == "non") {
					echo "<td>".$row->mode."</td>";
				} else {
					echo "<td>".$row->mode_rx." / ".$row->mode."</td>";
				}

				$phpdate = strtotime($row->timestamp);
				echo "<td>".date('H:i:s d-m-y', $phpdate)."</td>" ;
				echo "<td><a href=\"".site_url('radio/delete')."/".$row->id."\" class=\"btn btn-danger\"> <i class=\"fas fa-trash-alt\"></i> Delete</a></td>" ;
				echo "</tr>";
			}
		} else {
			echo "<tr>";
				echo "<td colspan=\"4\">No CAT Interfaced radios found.</td>";
			echo "</tr>";
		}

	}

	function json($id) {
		$this->output->set_header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
		$this->output->set_header('Cache-Control: post-check=0, pre-check=0', false);
		$this->output->set_header('Pragma: no-cache');
		$this->output->set_header('Expires: Sat, 01 Jan 2000 00:00:00 GMT');

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

		// Check if users logged in

		if($this->user_model->validate_session() == 0) {
			// user is not logged in
			// Return Json data
			header('Content-Type: application/json');
			echo json_encode(array(
				"error" => "not_logged_in"
			), JSON_PRETTY_PRINT);
		} else {

			header('Content-Type: application/json');

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

			$query = $this->cat->radio_status($id);

			if ($query->num_rows() > 0)
			{
				foreach ($query->result() as $row)
				{

					$frequency = $row->frequency;

					$frequency_rx = $row->frequency_rx;

					$power = $row->power;

					$prop_mode = $row->prop_mode;

					// Check Mode
					if (isset($row->mode) && ($row->mode != null)) {
						$mode = strtoupper($row->mode);
						if ($mode == "FMN") {
							$mode = "FM";
						}
					} else {
						$mode=null;
					}

					if ($row->prop_mode == "SAT") {
						// Get Satellite Name
						if ($row->sat_name == "AO-07") {
							$sat_name = "AO-7";
						} elseif ($row->sat_name == "LILACSAT") {
							$sat_name = "CAS-3H";
						} else {
							$sat_name =  strtoupper($row->sat_name);
						}

						// Get Satellite Mode
						$sat_mode_uplink = $this->get_mode_designator($row->frequency);
						$sat_mode_downlink = $this->get_mode_designator($row->frequency_rx);

						if (empty($sat_mode_uplink)) {
							$sat_mode = "";
						} elseif ($sat_mode_uplink !== $sat_mode_downlink) {
							$sat_mode = $sat_mode_uplink."/".$sat_mode_downlink;
						} else {
							$sat_mode = $sat_mode_uplink;
						}
					} else {
						$sat_name = "";
						$sat_mode = "";
					}

					// Calculate how old the data is in minutes
					$datetime1 = new DateTime("now", new DateTimeZone('UTC')); // Today's Date/Time
					$datetime2 = new DateTime($row->timestamp, new DateTimeZone('UTC'));
					$interval = $datetime1->diff($datetime2);

					$minutes = $interval->days * 24 * 60;
					$minutes += $interval->h * 60;
					$minutes += $interval->i;

					$updated_at = $minutes;

					// Return Json data
					$a_ret['frequency']=$frequency;
					if (isset($frequency_rx) && ($frequency_rx != null)) { $a_ret['frequency_rx']=$frequency_rx; }
 					if (isset($mode) && ($mode != null)) { $a_ret['mode']=$mode; }
					if (isset($sat_mode) && ($sat_mode != null)) { $a_ret['satmode']=$sat_mode; }
					if (isset($sat_name) && ($sat_name != null)) { $a_ret['satname']=$sat_name; }
					if (isset($power) && ($power != null)) { $a_ret['power']=$power; }
					if (isset($prop_mode) && ($prop_mode != null)) { $a_ret['prop_mode']=$prop_mode; }
					$a_ret['update_minutes_ago']=$updated_at;
					echo json_encode($a_ret, JSON_PRETTY_PRINT);
				}
			}
		}
	}

	function get_mode_designator($frequency)
	{
		if ($frequency > 21000000 && $frequency < 22000000)
			return "H";
		if ($frequency > 28000000 && $frequency < 30000000)
			return "A";
		if ($frequency > 144000000 && $frequency < 147000000)
			return "V";
		if ($frequency > 432000000 && $frequency < 438000000)
			return "U";
		if ($frequency > 1240000000 && $frequency < 1300000000)
			return "L";
		if ($frequency > 2320000000 && $frequency < 2450000000)
			return "S";
		if ($frequency > 3400000000 && $frequency < 3475000000)
			return "S2";
		if ($frequency > 5650000000 && $frequency < 5850000000)
			return "C";
		if ($frequency > 10000000000 && $frequency < 10500000000)
			return "X";
		if ($frequency > 24000000000 && $frequency < 24250000000)
			return "K";
		if ($frequency > 47000000000 && $frequency < 47200000000)
			return "R";

		return "";
	}

	function delete($id) {
		// Check Auth
		$this->load->model('user_model');
		if(!$this->user_model->authorize(3)) { $this->session->set_flashdata('notice', 'You\'re not allowed to do that!'); redirect('dashboard'); }

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

		$this->cat->delete($id);

		$this->session->set_flashdata('message', 'Radio Profile Deleted');

		redirect('radio');

	}
}


?>
