103 lines
3.0 KiB
PHP
Executable File
103 lines
3.0 KiB
PHP
Executable File
#!/usr/bin/env php
|
|
<?php
|
|
chdir(__DIR__);
|
|
$search = [];
|
|
$replace = [];
|
|
foreach (getenv() as $k => $v) {
|
|
$search[] = "\$$k";
|
|
$replace[] = '"' . addslashes($v) . '"';
|
|
}
|
|
$conf = yaml_parse(
|
|
str_replace($search, $replace, file_get_contents(__DIR__ . "/config.yaml"))
|
|
);
|
|
$c = new \Mosquitto\Client();
|
|
if (isset($conf["mqtt"]["user"])) {
|
|
$c->setCredentials($conf["mqtt"]["user"], $conf["mqtt"]["password"]);
|
|
}
|
|
$c->onMessage(function (\Mosquitto\Message $message) use (
|
|
&$data,
|
|
$conf,
|
|
&$extraDataMapper
|
|
) {
|
|
if (isset($extraDataMapper[$message->topic])) {
|
|
$file = $extraDataMapper[$message->topic];
|
|
file_put_contents("public/$file", $message->payload);
|
|
}
|
|
|
|
if (!isset($data[$message->topic])) {
|
|
return;
|
|
}
|
|
|
|
switch ($data[$message->topic]["cast"]) {
|
|
case "int":
|
|
$data[$message->topic]["value"] = (int) $message->payload;
|
|
break;
|
|
case "float":
|
|
$data[$message->topic]["value"] = (float) $message->payload;
|
|
break;
|
|
case "bool":
|
|
$data[$message->topic]["value"] = (bool) $message->payload;
|
|
break;
|
|
default:
|
|
echo "error, cast type " .
|
|
$data[$message->topic]["cast"] .
|
|
" unknown\n";
|
|
die(1);
|
|
}
|
|
$data[$message->topic]["changed"] = time();
|
|
$out = file_get_contents(__DIR__ . "/template.json");
|
|
$out = preg_replace_callback(
|
|
"/\"{{(?<name>[^#}]+?)(#(?<modifier>[^}]+))?}}\"/",
|
|
function ($m) use ($data, $conf) {
|
|
$value = $data[$conf["variables"][$m["name"]]["topic"]]["value"];
|
|
$modifier = isset($m["modifier"]) ? $m["modifier"] : "noop";
|
|
switch ($modifier) {
|
|
case "timestamp":
|
|
$value =
|
|
$data[$conf["variables"][$m["name"]]["topic"]][
|
|
"changed"
|
|
];
|
|
break;
|
|
case "noop":
|
|
break;
|
|
|
|
default:
|
|
echo "error, modifier " . $m["modifier"] . " unknown\n";
|
|
die(1);
|
|
}
|
|
return json_encode($value);
|
|
},
|
|
$out
|
|
);
|
|
|
|
$out = json_encode(
|
|
json_decode($out),
|
|
JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE
|
|
);
|
|
if (!is_dir("public")) {
|
|
mkdir("public");
|
|
}
|
|
file_put_contents("public/spaceapi.json.new", $out);
|
|
// ensure atomic update
|
|
rename("public/spaceapi.json.new", "public/spaceapi.json");
|
|
});
|
|
$c->connect($conf["mqtt"]["host"]);
|
|
$data = [];
|
|
$extraDataMapper = [];
|
|
foreach ($conf["variables"] as $name => $variable) {
|
|
$data[$variable["topic"]] = [
|
|
"value" => null,
|
|
"cast" => $variable["cast"],
|
|
"name" => $name,
|
|
"changed" => 0,
|
|
];
|
|
$c->subscribe($variable["topic"], 2);
|
|
}
|
|
foreach ($conf["extra_files"] as $fileName => $node) {
|
|
$topic=$node["topic"];
|
|
$c->subscribe($topic, 2);
|
|
$extraDataMapper[$topic] = $fileName;
|
|
}
|
|
$c->loopForever();
|
|
|