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Add On-air widget logic
This commit is contained in:
Filip Melík
@@ -72,4 +72,207 @@ class Widgets extends CI_Controller {
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$data['user_callsign'] = strtoupper($this->security->xss_clean($user_callsign));
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$this->load->view('widgets/oqrs', $data);
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}
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/**
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* On-Air widget handler
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*
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* @param string $user_callsign
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* @return void
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*/
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public function on_air($user_callsign = "") {
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if (empty($user_callsign)) {
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show_404(__("User callsign not specified"));
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return;
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}
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// TODO caching?
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// it will defeat purpose of having fresh value, so we might cache max for the time of "cat timeout"
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try {
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$user_id = $this->get_user_id_by_callsign($user_callsign);
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} catch (\Exception $e) {
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show_404($e->getMessage());
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return;
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}
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$this->load->model('cat');
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// TODO
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// following call raises question of privacy - only the users that want to use this widget
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// should be able to do that (probably needs new widget settings in account preferences?)
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// otherwise you could query any user that is known to be part of concrete wavelog instance
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// and he might not want to be "seen"
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$query = $this->cat->status_for_user_id($user_id);
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if ($query->num_rows() > 0) {
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$radio_timeout_seconds = $this->get_radio_timeout_seconds();
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$cat_timeout_interval_minutes = floor($radio_timeout_seconds / 60);
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$radios_online = [];
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$last_seen_days_ago = 999;
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foreach ($query->result() as $radio_data) {
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// There can be multiple radios online, we need to take into account all of them
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$radio_updated_ago_minutes = $this->calculate_radio_updated_ago_minutes($radio_data->timestamp);
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if ($radio_updated_ago_minutes > $cat_timeout_interval_minutes) {
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// Radio was updated too long ago - calculate user's "last seen X days ago" value
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$mins_per_day = 1440;
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$radio_last_seen_days_ago = (int)floor($radio_updated_ago_minutes / $mins_per_day);
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$last_seen_days_ago = min($last_seen_days_ago, $radio_last_seen_days_ago);
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} else {
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// Radio is available - add it to the array of available radios to be presented in UI
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$radio_obj = new \stdClass;
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$radio_obj->frequency_string = $this->prepare_frequency_string_for_widget($radio_data);
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$radios_online[] = $radio_obj;
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}
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}
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// determine theme
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$theme = $this->input->get('theme', true) ?? $this->config->item('option_theme');
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$data['theme'] = $theme;
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// determine text size
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$text_size = $this->input->get('text_size', true) ?? 1;
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$data['text_size_class'] = $this->prepare_text_size_css_class($text_size);
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// prepare rest of the data for UI
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$data['user_callsign'] = strtoupper($this->security->xss_clean($user_callsign));
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$data['is_on_air'] = count($radios_online) > 0;
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$data['radios_online'] = $radios_online;
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$data['last_seen_days_ago_string'] = $this->prepare_last_seen_text($last_seen_days_ago);
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$this->load->view('widgets/on_air', $data);
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} else {
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show_404(__("No CAT interfaced radios found"));
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return;
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}
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}
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/**
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* Get radio timout value. In case user set value in GET parameter, this value is used.
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* Otherwise global radio timeout value is used.
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*
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* @return int
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*/
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private function get_radio_timeout_seconds() {
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$query_param_value = $this->input->get('radio_timeout_seconds', true);
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if (is_numeric($query_param_value) === false || empty($query_param_value)) {
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return intval($this->config->item('radio_timeout_seconds'));
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}
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$radio_timeout_seconds = intval($query_param_value);
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$min_value = 60;
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if ($radio_timeout_seconds < $min_value) {
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$radio_timeout_seconds = $min_value;
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}
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return $radio_timeout_seconds;
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}
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/**
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* Fetch user ID by user callsign
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*
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* @param string $user_callsign
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* @return string
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*/
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private function get_user_id_by_callsign($user_callsign) {
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$this->load->model('user_model');
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$user_result = $this->user_model->get_by_callsign($user_callsign);
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if ($user_result->num_rows() == 0) {
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throw new \Exception(__("User not found by callsign"));
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}
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if ($user_result->num_rows() > 1) {
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throw new \Exception(__("Multiple users found by callsign"));
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}
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$user_row = $user_result->result();
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$user_data = current($user_row);
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return $user_data->user_id;
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}
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/**
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* Prepare Boostrap CSS font size class for text in the widget
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*
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* @param integer $selected_size Use values in range 1-6
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* @return string Prepared Bootstrap font-size CSS class
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*/
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private function prepare_text_size_css_class($selected_size = 1) {
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if ($selected_size < 1 || $selected_size > 6) {
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$selected_size = 1;
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}
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$base_size_number = 7;
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$calculated_size_number = $base_size_number - $selected_size;
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return sprintf("fs-%s", $calculated_size_number);
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}
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/**
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* Prepare text "last seen" text
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*
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* @param int $last_seen_days_ago
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* @return void
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*/
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private function prepare_last_seen_text($last_seen_days_ago) {
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if ($last_seen_days_ago === 0) {
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return "Last seen less than a day ago";
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}
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if ($last_seen_days_ago === 1) {
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return "Last seen yesterday";
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}
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return sprintf("Last seen %d days ago", $last_seen_days_ago);
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}
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/**
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* Calculate "radio last updated at" value
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*
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* @param string $radio_last_updated_timestamp How many minutes ago was radio CAT data updated
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* @return int
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*/
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private function calculate_radio_updated_ago_minutes($radio_last_updated_timestamp) {
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$datetime1 = new DateTime("now", new DateTimeZone('UTC')); // Today's Date/Time
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$datetime2 = new DateTime($radio_last_updated_timestamp, new DateTimeZone('UTC'));
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$interval = $datetime1->diff($datetime2);
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$minutes_ago = $interval->days * 24 * 60;
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$minutes_ago += $interval->h * 60;
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$minutes_ago += $interval->i;
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return (int)$minutes_ago;
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}
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/**
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* Prepare formatted frequency string based on given CAT data
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*
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* @param object $cat_data
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* @return string
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*/
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private function prepare_frequency_string_for_widget($cat_data) {
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$r_option = 1;
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$source_unit = "Hz";
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$target_unit = "MHz";
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if (empty($cat_data->frequency) || $cat_data->frequency == "0") {
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return "- / -";
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} elseif (empty($cat_data->frequency_rx) || $cat_data->frequency_rx == "0") {
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$tx_frequency = $this->frequency->qrg_conversion(
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$cat_data->frequency, $r_option, $source_unit, $target_unit
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);
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$mode_string = empty($cat_data->mode) ? "" : $cat_data->mode;
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return trim(sprintf("%s %s", $tx_frequency, $mode_string));
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} else {
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$rx_frequency = $this->frequency->qrg_conversion(
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$cat_data->frequency_rx, $r_option, $source_unit, $target_unit
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);
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$tx_frequency = $this->frequency->qrg_conversion(
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$cat_data->frequency, $r_option, $source_unit, $target_unit
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);
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$mode_string = empty($cat_data->mode) ? "" : $cat_data->mode;
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return trim(sprintf("%s / %s %s", $rx_frequency, $tx_frequency, $mode_string));
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}
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}
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}
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