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126 lines
3.6 KiB
PHP
126 lines
3.6 KiB
PHP
<?php
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class Hamqsl_model extends CI_Model {
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public $solarData = null;
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function set_solardata() {
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// Reads solar data from local XML file and sets $this->solarData
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// Returns true if data was read, false if not
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// The XML file shall be updated every 60 minutes by a cron job
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$xmlData = null;
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if (file_exists("./updates/solarxml.xml")) {
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$xmlstr = file_get_contents("./updates/solarxml.xml");
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if ($xmlstr !== false) {
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try {
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$xmlData = new SimpleXMLElement($xmlstr);
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} catch (Exception $e) {
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// Do nothing
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}
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}
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}
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if($xmlData) {
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$this->solarData = $xmlData;
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return true;
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} else {
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$this->solarData = null;
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return false;
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}
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}
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function get_bandconditions(string $name, string $time) {
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// Returns the band condition for a given band name and time of day from the provided XML root
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// If the data is not available, returns null
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// Example: get_band_condition('80m-40m', 'day')
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// Returns: 'Good', 'Fair', 'Poor', or null if not found
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if (!$this->solarData) {
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if (!$this->set_solardata()) {
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return null; // Unable to load data
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}
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}
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// Properly escape values for XPath
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$escapeForXPath = function($value) {
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if (strpos($value, "'") === false) {
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return "'$value'";
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} elseif (strpos($value, '"') === false) {
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return "\"$value\"";
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} else {
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return "concat('" . str_replace("'", "',\"'\",'", $value) . "')";
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}
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};
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$nameEscaped = $escapeForXPath($name);
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$timeEscaped = $escapeForXPath($time);
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$xpathQuery = "/solardata/calculatedconditions/band[@name=$nameEscaped and @time=$timeEscaped]";
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$result = $this->solarData->xpath($xpathQuery);
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if ($result && count($result) > 0) {
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return trim((string)$result[0]);
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} else {
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return null; // Not found
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}
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}
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function get_bandconditions_array() {
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// Returns an associative array of all band conditions from the XML data
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// The array structure is: [band_name][time_of_day] = condition
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// Example: $conditions['80m-40m']['day'] = 'Good'
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// Returns null if data is not available
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if (!$this->solarData) {
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if (!$this->set_solardata()) {
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return null; // Unable to load data
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}
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}
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$conditions = [];
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if (isset($this->solarData->solardata->calculatedconditions->band)) {
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foreach ($this->solarData->solardata->calculatedconditions->band as $band) {
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$name = (string)$band['name'];
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$time = (string)$band['time'];
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$condition = trim((string)$band);
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if (!isset($conditions[$name])) {
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$conditions[$name] = [];
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}
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$conditions[$name][$time] = $condition;
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}
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}
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return $conditions; // Return the associative array
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}
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function get_solarinformation_array() {
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// Returns an associative array of all information from the XML data,
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// including band conditions, without filtering anything out.
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// The 'updated' field is converted to "d M H:i \G\M\T" format.
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// Returns null if data is not available.
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if (!$this->solarData) {
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if (!$this->set_solardata()) {
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return null; // Unable to load data
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}
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}
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// Find the <solardata> node (handle both root and nested)
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$solardata = isset($this->solarData->solardata) ? $this->solarData->solardata : $this->solarData;
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// Convert the entire <solardata> node to an associative array
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$solarinformation = json_decode(json_encode($solardata), true);
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// Format the 'updated' field if it exists
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if (isset($solarinformation['updated'])) {
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$timestamp = strtotime($solarinformation['updated']);
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if ($timestamp !== false) {
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$solarinformation['updated'] = gmdate('d M H:i \G\M\T', $timestamp);
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}
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}
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return $solarinformation; // Return the associative array
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}
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}
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?>
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