improve query support

simple string MOTDs; optional player sample

src/status.rs

@@ -19,7 +19,7 @@ pub struct MinecraftPlayer {
 pub struct MinecraftPlayers {
     pub online: u32,
     pub max: u32,
-    pub sample: Vec<MinecraftPlayer>,
+    pub sample: Option<Vec<MinecraftPlayer>>,
 }
 
 #[derive(serde::Serialize, serde::Deserialize)]
@@ -30,7 +30,14 @@ enum MinecraftDescriptionExtra {
 }
 
 #[derive(serde::Serialize, serde::Deserialize)]
-pub struct MinecraftDescription {
+#[serde(untagged)]
+pub enum MinecraftDescription {
+    Rich(MinecraftRichDescription),
+    Plain(String)
+}
+
+#[derive(serde::Serialize, serde::Deserialize)]
+pub struct MinecraftRichDescription {
     text: String,
     extra: Option<Vec<MinecraftDescriptionExtra>>,
     bold: Option<bool>,
@@ -103,7 +110,6 @@ impl MinecraftStatus {
         }
         let msg = std::str::from_utf8(&data[offset..]).unwrap().trim();
         let sanitised: String = msg.chars().filter(|&c| c >= '\u{20}' || c == '\n' || c == '\r' || c == '\t').collect();
-        // println!("{sanitised}");
         let status: MinecraftStatus = serde_json::from_slice(sanitised.as_bytes()).unwrap();
 
         Ok(status)
@@ -119,6 +125,8 @@ impl MinecraftStatus {
 }
 
 fn _description(description: &MinecraftDescription) -> String {
+    match description {
+        MinecraftDescription::Rich(description) => {
             if description.extra.is_some() {
                 let mut extras = String::new();
                 for extra in description.extra.as_ref().unwrap() {
@@ -134,6 +142,11 @@ fn _description(description: &MinecraftDescription) -> String {
                 return description.text.clone() + &extras;
             }
             description.text.clone()
+        }
+        MinecraftDescription::Plain(description) => {
+            description.clone()
+        }
+    }
 }
 
 fn send_packet(stream: &mut TcpStream, data: &[u8]) -> Result<()> {