feat: support function calling (#514)

* feat: support function calling

* fix on Windows OS

* implement multi-steps function calling

* fix on Windows OS

* add error for client not support function calling

* refactor message data structure and make claude client supporting function calling

* support reuse previous call results

* improve error handling for function calling

* use prefix `may_`  as indicator for `execute` type fucntions

1 files changed, 3 insertions, 3 deletions

diff --git a/src/client/gemini.rs b/src/client/gemini.rs
index 28fc93e..1ffb9a9 100644
--- a/src/client/gemini.rs
+++ b/src/client/gemini.rs
@@ -1,5 +1,5 @@
 use super::vertexai::gemini_build_body;
-use super::{ExtraConfig, GeminiClient, Model, ModelConfig, PromptAction, PromptKind, SendData};
+use super::{ExtraConfig, GeminiClient, Model, ModelData, PromptAction, PromptKind, SendData};
 
 use anyhow::Result;
 use reqwest::{Client as ReqwestClient, RequestBuilder};
@@ -14,7 +14,7 @@ pub struct GeminiConfig {
     #[serde(rename = "safetySettings")]
     pub safety_settings: Option<serde_json::Value>,
     #[serde(default)]
-    pub models: Vec<ModelConfig>,
+    pub models: Vec<ModelData>,
     pub extra: Option<ExtraConfig>,
 }
 
@@ -34,7 +34,7 @@ impl GeminiClient {
 
         let body = gemini_build_body(data, &self.model, self.config.safety_settings.clone())?;
 
-        let model = &self.model.name;
+        let model = &self.model.name();
 
         let url = format!("{API_BASE}{}:{}?key={}", model, func, api_key);