Config serialization/deserialization for PostFlopGame

src/game/base.rs

@@ -1460,4 +1460,49 @@ impl PostFlopGame {
     pub fn get_state(&self) -> &State {
         &self.state
     }
+
+    /// This is a temporary function that is _not_ guaranteed to be supported in
+    /// future versions. It returns a JSON object with a game's `TreeConfig` and
+    /// `CardConfig`.
+    pub fn configs_as_json(&self) -> Result<serde_json::Value, String> {
+        let tree_config = serde_json::to_value(self.tree_config());
+        let tree_config = tree_config.map_err(|e| {
+            format!(
+                "Couldn't serialize TreeConfig {:?} to JSON:\n{}",
+                self.tree_config(),
+                e
+            )
+        })?;
+        let card_config = serde_json::to_value(self.card_config());
+        let card_config = card_config.map_err(|e| {
+            format!(
+                "Couldn't serialize CardConfig {:?} to JSON:\n{}",
+                self.card_config(),
+                e
+            )
+        })?;
+        let mut map = serde_json::Map::new();
+        map.insert("tree_config".to_string(), tree_config);
+        map.insert("card_config".to_string(), card_config);
+        let json_config = serde_json::Value::Object(map);
+        Ok(json_config)
+    }
+
+    pub fn game_from_configs_json(configs_json: serde_json::Value) -> Result<PostFlopGame, String> {
+        let map = configs_json.as_object().ok_or({
+            "Config JSON must be a JSON object with keys \"tree_config\" and \"card_config\""
+        })?;
+        let tree_config = map
+            .get("tree_config")
+            .ok_or("Config JSON must contain key \"tree_config\"")?;
+        let card_config = map
+            .get("card_config")
+            .ok_or("Config JSON must contain key \"card_config\"")?;
+        let tree_config: TreeConfig = serde_json::from_value(tree_config.clone())
+            .map_err(|_| "Error deserializing tree_config")?;
+        let card_config: CardConfig = serde_json::from_value(card_config.clone())
+            .map_err(|_| "Error deserializing card_config")?;
+        let action_tree = ActionTree::new(tree_config)?;
+        PostFlopGame::with_config(card_config, action_tree)
+    }
 }