Continuous function invocation fix

src/client.rs

@@ -224,7 +224,7 @@ impl ChatGPT {
                     role: Role::User,
                     content: message.into(),
                     #[cfg(feature = "functions")]
-                    function_call: None,
+                    function_properties: None,
                 }],
                 stream: false,
                 temperature: self.config.temperature,
@@ -267,7 +267,7 @@ impl ChatGPT {
                     role: Role::User,
                     content: message.into(),
                     #[cfg(feature = "functions")]
-                    function_call: None,
+                    function_properties: None,
                 }],
                 stream: true,
                 temperature: self.config.temperature,
@@ -365,7 +365,7 @@ impl ChatGPT {
                     role: Role::User,
                     content: message.into(),
                     #[cfg(feature = "functions")]
-                    function_call: None,
+                    function_properties: None,
                 }],
                 stream: false,
                 temperature: self.config.temperature,

src/converse.rs

@@ -18,6 +18,7 @@ use crate::{
     client::ChatGPT,
     types::{ChatMessage, CompletionResponse, Role},
 };
+use crate::types::FunctionCallProperties;
 
 /// Stores a single conversation session, and automatically saves message history
 pub struct Conversation {
@@ -44,7 +45,7 @@ impl Conversation {
                 role: Role::System,
                 content: first_message,
                 #[cfg(feature = "functions")]
-                function_call: None,
+                function_properties: None,
             }],
             #[cfg(feature = "functions")]
             functions: HashMap::with_capacity(4),
@@ -103,7 +104,7 @@ impl Conversation {
             role,
             content: message.into(),
             #[cfg(feature = "functions")]
-            function_call: None,
+            function_properties: None,
         });
 
         #[cfg(feature = "functions")]
@@ -149,7 +150,7 @@ impl Conversation {
             role: Role::User,
             content: message.into(),
             #[cfg(feature = "functions")]
-            function_call: None,
+            function_properties: None,
         });
         let resp = self
             .client
@@ -184,7 +185,7 @@ impl Conversation {
             role,
             content: message.into(),
             #[cfg(feature = "functions")]
-            function_call: None,
+            function_properties: None,
         });
         let stream = self.client.send_history_streaming(&self.history).await?;
         Ok(stream)
@@ -244,8 +245,8 @@ impl Conversation {
         &mut self,
         message: &ChatMessage,
     ) -> Option<CompletionResponse> {
-        if let Some(call) = &message.function_call {
-            if let Some(Ok(result)) = self.process_function(call).await {
+        if let Some(FunctionCallProperties { function_call, .. }) = &message.function_properties {
+            if let Some(Ok(result)) = self.process_function(function_call).await {
                 Some(result)
             } else {
                 None

src/types.rs

@@ -29,8 +29,19 @@ pub struct ChatMessage {
     pub content: String,
     /// Function call (if present)
     #[cfg(feature = "functions")]
+    #[serde(skip_serializing_if = "Option::is_none", flatten)]
+    pub function_properties: Option<FunctionCallProperties>,
+}
+
+/// Container for called function info
+#[derive(Debug, Clone, PartialEq, PartialOrd, Serialize, Deserialize)]
+pub struct FunctionCallProperties {
+    /// The actual function call
+    pub function_call: FunctionCall,
+    /// Name of the function called
+    #[serde(rename = "name")]
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub function_call: Option<FunctionCall>,
+    pub function_name: Option<String>
 }
 
 fn deserialize_maybe_null<'de, D>(deserializer: D) -> Result<String, D::Error>
@@ -63,7 +74,7 @@ impl ChatMessage {
                         role,
                         content: String::new(),
                         #[cfg(feature = "functions")]
-                        function_call: None,
+                        function_properties: None,
                     };
                     result.push(msg);
                 }