From 86d5f832c8452aad2313489b82eb8fd514215b95 Mon Sep 17 00:00:00 2001
From: salmonik <salmonik@tuta.io>
Date: Wed, 28 Oct 2026 22:28:20 +0100
Subject: v0.2.3: add ClientCore and fix the game board rendering

---
 src/client/games/response.rs | 60 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 src/client/games/response.rs

(limited to 'src/client/games/response.rs')

diff --git a/src/client/games/response.rs b/src/client/games/response.rs
new file mode 100644
index 0000000..6948805
--- /dev/null
+++ b/src/client/games/response.rs
@@ -0,0 +1,60 @@
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct SpinResult {
+    pub session_id: String,
+    pub winnings: u64,
+    pub bet_amount: u64,
+    pub balance: i64,
+    pub reels: String,
+    pub win_type: String,
+}
+
+/// Parse one server reply to `PLAY_START`.
+///
+/// `Ok` carries the settled spin; `Err` carries a message that is safe to
+/// show to the player (server errors are reported without the `ERROR ` prefix).
+pub fn parse_spin_response(response: &str) -> Result<SpinResult, String> {
+    let response = response.trim();
+    if response.is_empty() {
+        return Err("No response from server".to_string());
+    }
+
+    if let Some(message) = response.strip_prefix("ERROR") {
+        let message = message.trim();
+        return Err(if message.is_empty() {
+            "Server error".to_string()
+        } else {
+            message.to_string()
+        });
+    }
+
+    let parts: Vec<&str> = response.split_whitespace().collect();
+    if parts.first() != Some(&"GAME_RESULT") {
+        return Err(format!("Unexpected server response: {response}"));
+    }
+    if parts.len() < 7 {
+        return Err("Malformed GAME_RESULT from server".to_string());
+    }
+
+    let winnings = parts[2]
+        .parse::<u64>()
+        .map_err(|_| format!("Invalid winnings from server: {}", parts[2]))?;
+    let bet_amount = parts[3]
+        .parse::<u64>()
+        .map_err(|_| format!("Invalid bet from server: {}", parts[3]))?;
+    let balance = parts[4]
+        .parse::<i64>()
+        .map_err(|_| format!("Invalid balance from server: {}", parts[4]))?;
+
+    if parts[5].chars().count() != 3 {
+        return Err(format!("Invalid reels from server: {}", parts[5]));
+    }
+
+    Ok(SpinResult {
+        session_id: parts[1].to_string(),
+        winnings,
+        bet_amount,
+        balance,
+        reels: parts[5].to_string(),
+        win_type: parts[6].to_string(),
+    })
+}
-- 
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