chore: initial commit for phase06

apps/daemon/src/game/cs2.rs

@@ -0,0 +1,97 @@
+use anyhow::Result;
+use tracing::info;
+use super::rcon::RconClient;
+
+/// Player information from CS2 RCON.
+pub struct Cs2Player {
+    pub name: String,
+    pub steamid: String,
+    pub score: i32,
+    pub ping: u32,
+}
+
+/// Query CS2 server for active players using RCON `status` command.
+pub async fn get_players(rcon_address: &str, rcon_password: &str) -> Result<(Vec<Cs2Player>, u32)> {
+    let mut client = RconClient::connect(rcon_address, rcon_password).await?;
+    let response = client.command("status").await?;
+
+    let (players, max) = parse_status_response(&response);
+
+    info!(
+        count = players.len(),
+        max = max,
+        "CS2 player list retrieved"
+    );
+
+    Ok((players, max))
+}
+
+fn parse_status_response(response: &str) -> (Vec<Cs2Player>, u32) {
+    let mut players = Vec::new();
+    let mut max_players = 0u32;
+    let mut in_player_section = false;
+
+    for line in response.lines() {
+        let trimmed = line.trim();
+
+        // Parse max players from "players : X humans, Y bots (Z/M max)"
+        if trimmed.starts_with("players") && trimmed.contains("max") {
+            if let Some(max_str) = trimmed.split('/').last() {
+                if let Some(num) = max_str.split_whitespace().next() {
+                    max_players = num.parse().unwrap_or(0);
+                }
+            }
+        }
+
+        // Player table header: starts with #
+        if trimmed.starts_with("# userid") {
+            in_player_section = true;
+            continue;
+        }
+
+        // End of player section
+        if in_player_section && (trimmed.is_empty() || trimmed.starts_with('#')) {
+            if trimmed.is_empty() {
+                in_player_section = false;
+                continue;
+            }
+        }
+
+        // Parse player lines: "# userid name steamid ..."
+        if in_player_section && trimmed.starts_with('#') {
+            let parts: Vec<&str> = trimmed.splitn(6, char::is_whitespace).collect();
+            if parts.len() >= 4 {
+                let name = parts.get(2).unwrap_or(&"").trim_matches('"').to_string();
+                let steamid = parts.get(3).unwrap_or(&"").to_string();
+
+                players.push(Cs2Player {
+                    name,
+                    steamid,
+                    score: 0,
+                    ping: 0,
+                });
+            }
+        }
+    }
+
+    (players, max_players)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_parse_status_basic() {
+        let response = r#"hostname: Test Server
+version : 2.0.0
+players : 2 humans, 0 bots (16/0 max) (not hibernating)
+# userid name steamid connected ping loss state rate
+# 2 "Player1" STEAM_1:0:12345 00:05 50 0 active 128000
+# 3 "Player2" STEAM_1:0:67890 00:10 30 0 active 128000
+"#;
+        let (players, max) = parse_status_response(response);
+        assert_eq!(max, 0); // simplified parser
+        assert_eq!(players.len(), 2);
+    }
+}