refactor: rename some structs (#457)

17 files changed, 114 insertions, 130 deletions

diff --git a/src/client/bedrock.rs b/src/client/bedrock.rs
index dd94a41..6d9379d 100644
--- a/src/client/bedrock.rs
+++ b/src/client/bedrock.rs
@@ -1,7 +1,7 @@
 use super::claude::{claude_build_body, claude_extract_completion};
 use super::{
-    catch_error, generate_prompt, BedrockClient, Client, CompletionStats, ExtraConfig, Model,
-    ModelConfig, PromptFormat, PromptType, ReplyHandler, SendData, LLAMA2_PROMPT_FORMAT,
+    catch_error, generate_prompt, BedrockClient, Client, CompletionDetails, ExtraConfig, Model,
+    ModelConfig, PromptFormat, PromptType, SendData, SseHandler, LLAMA2_PROMPT_FORMAT,
     LLAMA3_PROMPT_FORMAT,
 };
 
@@ -45,7 +45,7 @@ impl Client for BedrockClient {
         &self,
         client: &ReqwestClient,
         data: SendData,
-    ) -> Result<(String, CompletionStats)> {
+    ) -> Result<(String, CompletionDetails)> {
         let model_category = ModelCategory::from_str(&self.model.name)?;
         let builder = self.request_builder(client, data, &model_category)?;
         send_message(builder, &model_category).await
@@ -54,7 +54,7 @@ impl Client for BedrockClient {
     async fn send_message_streaming_inner(
         &self,
         client: &ReqwestClient,
-        handler: &mut ReplyHandler,
+        handler: &mut SseHandler,
         data: SendData,
     ) -> Result<()> {
         let model_category = ModelCategory::from_str(&self.model.name)?;
@@ -132,7 +132,7 @@ impl BedrockClient {
 async fn send_message(
     builder: RequestBuilder,
     model_category: &ModelCategory,
-) -> Result<(String, CompletionStats)> {
+) -> Result<(String, CompletionDetails)> {
     let res = builder.send().await?;
     let status = res.status();
     let data: Value = res.json().await?;
@@ -150,7 +150,7 @@ async fn send_message(
 
 async fn send_message_streaming(
     builder: RequestBuilder,
-    handler: &mut ReplyHandler,
+    handler: &mut SseHandler,
     model_category: &ModelCategory,
 ) -> Result<()> {
     let res = builder.send().await?;
@@ -275,23 +275,23 @@ fn mistral_build_body(data: SendData, model: &Model) -> Result<Value> {
     Ok(body)
 }
 
-fn llama_extract_completion(data: &Value) -> Result<(String, CompletionStats)> {
+fn llama_extract_completion(data: &Value) -> Result<(String, CompletionDetails)> {
     let text = data["generation"]
         .as_str()
         .ok_or_else(|| anyhow!("Invalid response data: {data}"))?;
-    let stats = CompletionStats {
+    let details = CompletionDetails {
         id: None,
         input_tokens: data["prompt_token_count"].as_u64(),
         output_tokens: data["generation_token_count"].as_u64(),
     };
-    Ok((text.to_string(), stats))
+    Ok((text.to_string(), details))
 }
 
-fn mistral_extrat_completion(data: &Value) -> Result<(String, CompletionStats)> {
+fn mistral_extrat_completion(data: &Value) -> Result<(String, CompletionDetails)> {
     let text = data["outputs"][0]["text"]
         .as_str()
         .ok_or_else(|| anyhow!("Invalid response data: {data}"))?;
-    Ok((text.to_string(), CompletionStats::default()))
+    Ok((text.to_string(), CompletionDetails::default()))
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
diff --git a/src/client/claude.rs b/src/client/claude.rs
index 8bd87ee..2b770dc 100644
--- a/src/client/claude.rs
+++ b/src/client/claude.rs
@@ -1,6 +1,6 @@
 use super::{
-    catch_error, extract_system_message, ClaudeClient, CompletionStats, ExtraConfig, ImageUrl,
-    MessageContent, MessageContentPart, Model, ModelConfig, PromptType, ReplyHandler, SendData,
+    catch_error, extract_system_message, ClaudeClient, CompletionDetails, ExtraConfig, ImageUrl,
+    MessageContent, MessageContentPart, Model, ModelConfig, PromptType, SendData, SseHandler,
 };
 
 use crate::utils::PromptKind;
@@ -54,7 +54,7 @@ impl_client_trait!(
     claude_send_message_streaming
 );
 
-pub async fn claude_send_message(builder: RequestBuilder) -> Result<(String, CompletionStats)> {
+pub async fn claude_send_message(builder: RequestBuilder) -> Result<(String, CompletionDetails)> {
     let res = builder.send().await?;
     let status = res.status();
     let data: Value = res.json().await?;
@@ -66,7 +66,7 @@ pub async fn claude_send_message(builder: RequestBuilder) -> Result<(String, Com
 
 pub async fn claude_send_message_streaming(
     builder: RequestBuilder,
-    handler: &mut ReplyHandler,
+    handler: &mut SseHandler,
 ) -> Result<()> {
     let mut es = builder.eventsource()?;
     while let Some(event) = es.next().await {
@@ -191,15 +191,15 @@ pub fn claude_build_body(data: SendData, model: &Model) -> Result<Value> {
     Ok(body)
 }
 
-pub fn claude_extract_completion(data: &Value) -> Result<(String, CompletionStats)> {
+pub fn claude_extract_completion(data: &Value) -> Result<(String, CompletionDetails)> {
     let text = data["content"][0]["text"]
         .as_str()
         .ok_or_else(|| anyhow!("Invalid response data: {data}"))?;
 
-    let stats = CompletionStats {
+    let details = CompletionDetails {
         id: data["id"].as_str().map(|v| v.to_string()),
         input_tokens: data["usage"]["input_tokens"].as_u64(),
         output_tokens: data["usage"]["output_tokens"].as_u64(),
     };
-    Ok((text.to_string(), stats))
+    Ok((text.to_string(), details))
 }
diff --git a/src/client/cohere.rs b/src/client/cohere.rs
index 6186718..de2a11c 100644
--- a/src/client/cohere.rs
+++ b/src/client/cohere.rs
@@ -1,6 +1,6 @@
 use super::{
-    catch_error, extract_system_message, json_stream, message::*, CohereClient, CompletionStats,
-    ExtraConfig, Model, ModelConfig, PromptType, ReplyHandler, SendData,
+    catch_error, extract_system_message, json_stream, message::*, CohereClient, CompletionDetails,
+    ExtraConfig, Model, ModelConfig, PromptType, SendData, SseHandler,
 };
 
 use crate::utils::PromptKind;
@@ -47,7 +47,7 @@ impl CohereClient {
 
 impl_client_trait!(CohereClient, send_message, send_message_streaming);
 
-async fn send_message(builder: RequestBuilder) -> Result<(String, CompletionStats)> {
+async fn send_message(builder: RequestBuilder) -> Result<(String, CompletionDetails)> {
     let res = builder.send().await?;
     let status = res.status();
     let data: Value = res.json().await?;
@@ -58,7 +58,7 @@ async fn send_message(builder: RequestBuilder) -> Result<(String, CompletionStat
     cohere_extract_completion(&data)
 }
 
-async fn send_message_streaming(builder: RequestBuilder, handler: &mut ReplyHandler) -> Result<()> {
+async fn send_message_streaming(builder: RequestBuilder, handler: &mut SseHandler) -> Result<()> {
     let res = builder.send().await?;
     let status = res.status();
     if status != 200 {
@@ -156,15 +156,15 @@ fn build_body(data: SendData, model: &Model) -> Result<Value> {
     Ok(body)
 }
 
-fn cohere_extract_completion(data: &Value) -> Result<(String, CompletionStats)> {
+fn cohere_extract_completion(data: &Value) -> Result<(String, CompletionDetails)> {
     let text = data["text"]
         .as_str()
         .ok_or_else(|| anyhow!("Invalid response data: {data}"))?;
 
-    let stats = CompletionStats {
+    let details = CompletionDetails {
         id: data["generation_id"].as_str().map(|v| v.to_string()),
         input_tokens: data["meta"]["billed_units"]["input_tokens"].as_u64(),
         output_tokens: data["meta"]["billed_units"]["output_tokens"].as_u64(),
     };
-    Ok((text.to_string(), stats))
+    Ok((text.to_string(), details))
 }
diff --git a/src/client/common.rs b/src/client/common.rs
index a58c962..64e32ff 100644
--- a/src/client/common.rs
+++ b/src/client/common.rs
@@ -1,4 +1,4 @@
-use super::{openai::OpenAIConfig, ClientConfig, ClientModel, Message, Model, ReplyHandler};
+use super::{openai::OpenAIConfig, ClientConfig, ClientModel, Message, Model, SseHandler};
 
 use crate::{
     config::{GlobalConfig, Input},
@@ -260,7 +260,7 @@ macro_rules! impl_client_trait {
                 &self,
                 client: &reqwest::Client,
                 data: $crate::client::SendData,
-            ) -> anyhow::Result<(String, $crate::client::CompletionStats)> {
+            ) -> anyhow::Result<(String, $crate::client::CompletionDetails)> {
                 let builder = self.request_builder(client, data)?;
                 $send_message(builder).await
             }
@@ -268,7 +268,7 @@ macro_rules! impl_client_trait {
             async fn send_message_streaming_inner(
                 &self,
                 client: &reqwest::Client,
-                handler: &mut $crate::client::ReplyHandler,
+                handler: &mut $crate::client::SseHandler,
                 data: $crate::client::SendData,
             ) -> Result<()> {
                 let builder = self.request_builder(client, data)?;
@@ -330,11 +330,11 @@ pub trait Client: Sync + Send {
         Ok(client)
     }
 
-    async fn send_message(&self, input: Input) -> Result<(String, CompletionStats)> {
+    async fn send_message(&self, input: Input) -> Result<(String, CompletionDetails)> {
         let global_config = self.config().0;
         if global_config.read().dry_run {
             let content = global_config.read().echo_messages(&input);
-            return Ok((content, CompletionStats::default()));
+            return Ok((content, CompletionDetails::default()));
         }
         let client = self.build_client()?;
         let data = global_config.read().prepare_send_data(&input, false)?;
@@ -343,11 +343,7 @@ pub trait Client: Sync + Send {
             .with_context(|| "Failed to get answer")
     }
 
-    async fn send_message_streaming(
-        &self,
-        input: &Input,
-        handler: &mut ReplyHandler,
-    ) -> Result<()> {
+    async fn send_message_streaming(&self, input: &Input, handler: &mut SseHandler) -> Result<()> {
         async fn watch_abort(abort: AbortSignal) {
             loop {
                 if abort.aborted() {
@@ -388,12 +384,12 @@ pub trait Client: Sync + Send {
         &self,
         client: &ReqwestClient,
         data: SendData,
-    ) -> Result<(String, CompletionStats)>;
+    ) -> Result<(String, CompletionDetails)>;
 
     async fn send_message_streaming_inner(
         &self,
         client: &ReqwestClient,
-        handler: &mut ReplyHandler,
+        handler: &mut SseHandler,
         data: SendData,
     ) -> Result<()>;
 }
@@ -419,7 +415,7 @@ pub struct SendData {
 }
 
 #[derive(Debug, Clone, Default)]
-pub struct CompletionStats {
+pub struct CompletionDetails {
     pub id: Option<String>,
     pub input_tokens: Option<u64>,
     pub output_tokens: Option<u64>,
@@ -459,7 +455,7 @@ pub async fn send_stream(
     abort: AbortSignal,
 ) -> Result<String> {
     let (tx, rx) = unbounded_channel();
-    let mut stream_handler = ReplyHandler::new(tx, abort.clone());
+    let mut stream_handler = SseHandler::new(tx, abort.clone());
 
     let (send_ret, rend_ret) = tokio::join!(
         client.send_message_streaming(input, &mut stream_handler),
@@ -486,7 +482,7 @@ pub async fn send_stream(
 #[allow(unused)]
 pub async fn send_message_as_streaming<F, Fut>(
     builder: RequestBuilder,
-    handler: &mut ReplyHandler,
+    handler: &mut SseHandler,
     f: F,
 ) -> Result<()>
 where
diff --git a/src/client/ernie.rs b/src/client/ernie.rs
index dc00f2f..cbfdf22 100644
--- a/src/client/ernie.rs
+++ b/src/client/ernie.rs
@@ -1,6 +1,6 @@
 use super::{
-    maybe_catch_error, patch_system_message, Client, CompletionStats, ErnieClient, ExtraConfig,
-    Model, ModelConfig, PromptType, ReplyHandler, SendData,
+    maybe_catch_error, patch_system_message, Client, CompletionDetails, ErnieClient, ExtraConfig,
+    Model, ModelConfig, PromptType, SendData, SseHandler,
 };
 
 use crate::utils::PromptKind;
@@ -83,7 +83,7 @@ impl Client for ErnieClient {
         &self,
         client: &ReqwestClient,
         data: SendData,
-    ) -> Result<(String, CompletionStats)> {
+    ) -> Result<(String, CompletionDetails)> {
         self.prepare_access_token().await?;
         let builder = self.request_builder(client, data)?;
         send_message(builder).await
@@ -92,7 +92,7 @@ impl Client for ErnieClient {
     async fn send_message_streaming_inner(
         &self,
         client: &ReqwestClient,
-        handler: &mut ReplyHandler,
+        handler: &mut SseHandler,
         data: SendData,
     ) -> Result<()> {
         self.prepare_access_token().await?;
@@ -101,13 +101,13 @@ impl Client for ErnieClient {
     }
 }
 
-async fn send_message(builder: RequestBuilder) -> Result<(String, CompletionStats)> {
+async fn send_message(builder: RequestBuilder) -> Result<(String, CompletionDetails)> {
     let data: Value = builder.send().await?.json().await?;
     maybe_catch_error(&data)?;
     extract_completion_text(&data)
 }
 
-async fn send_message_streaming(builder: RequestBuilder, handler: &mut ReplyHandler) -> Result<()> {
+async fn send_message_streaming(builder: RequestBuilder, handler: &mut SseHandler) -> Result<()> {
     let mut es = builder.eventsource()?;
     while let Some(event) = es.next().await {
         match event {
@@ -184,16 +184,16 @@ fn build_body(data: SendData, model: &Model) -> Value {
     body
 }
 
-fn extract_completion_text(data: &Value) -> Result<(String, CompletionStats)> {
+fn extract_completion_text(data: &Value) -> Result<(String, CompletionDetails)> {
     let text = data["result"]
         .as_str()
         .ok_or_else(|| anyhow!("Invalid response data: {data}"))?;
-    let stats = CompletionStats {
+    let details = CompletionDetails {
         id: data["id"].as_str().map(|v| v.to_string()),
         input_tokens: data["usage"]["prompt_tokens"].as_u64(),
         output_tokens: data["usage"]["completion_tokens"].as_u64(),
     };
-    Ok((text.to_string(), stats))
+    Ok((text.to_string(), details))
 }
 
 async fn fetch_access_token(
diff --git a/src/client/groq.rs b/src/client/groq.rs
index 24abc6e..23ca33d 100644
--- a/src/client/groq.rs
+++ b/src/client/groq.rs
@@ -1,5 +1 @@
-openai_compatible_client!(
-    GroqConfig,
-    GroqClient,
-    "https://api.groq.com/openai/v1",
-);
+openai_compatible_client!(GroqConfig, GroqClient, "https://api.groq.com/openai/v1",);
diff --git a/src/client/mistral.rs b/src/client/mistral.rs
index 7279d2b..351502d 100644
--- a/src/client/mistral.rs
+++ b/src/client/mistral.rs
@@ -1,5 +1 @@
-openai_compatible_client!(
-    MistralConfig,
-    MistralClient,
-    "https://api.mistral.ai/v1",
-);
+openai_compatible_client!(MistralConfig, MistralClient, "https://api.mistral.ai/v1",);
diff --git a/src/client/mod.rs b/src/client/mod.rs
index a5aaab1..0916801 100644
--- a/src/client/mod.rs
+++ b/src/client/mod.rs
@@ -3,13 +3,13 @@ mod common;
 mod message;
 mod model;
 mod prompt_format;
-mod reply_handler;
+mod sse_handler;
 
 pub use common::*;
 pub use message::*;
 pub use model::*;
 pub use prompt_format::*;
-pub use reply_handler::*;
+pub use sse_handler::*;
 
 register_client!(
     (openai, "openai", OpenAIConfig, OpenAIClient),
diff --git a/src/client/moonshot.rs b/src/client/moonshot.rs
index 471b2b1..903d60f 100644
--- a/src/client/moonshot.rs
+++ b/src/client/moonshot.rs
@@ -1,5 +1 @@
-openai_compatible_client!(
-    MoonshotConfig,
-    MoonshotClient,
-    "https://api.moonshot.cn/v1",
-);
+openai_compatible_client!(MoonshotConfig, MoonshotClient, "https://api.moonshot.cn/v1",);
diff --git a/src/client/ollama.rs b/src/client/ollama.rs
index ec83cbd..ca9d05d 100644
--- a/src/client/ollama.rs
+++ b/src/client/ollama.rs
@@ -1,6 +1,6 @@
 use super::{
-    catch_error, message::*, CompletionStats, ExtraConfig, Model, ModelConfig, OllamaClient,
-    PromptType, ReplyHandler, SendData,
+    catch_error, message::*, CompletionDetails, ExtraConfig, Model, ModelConfig, OllamaClient,
+    PromptType, SendData, SseHandler,
 };
 
 use crate::utils::PromptKind;
@@ -59,7 +59,7 @@ impl OllamaClient {
 
 impl_client_trait!(OllamaClient, send_message, send_message_streaming);
 
-async fn send_message(builder: RequestBuilder) -> Result<(String, CompletionStats)> {
+async fn send_message(builder: RequestBuilder) -> Result<(String, CompletionDetails)> {
     let res = builder.send().await?;
     let status = res.status();
     let data = res.json().await?;
@@ -69,10 +69,10 @@ async fn send_message(builder: RequestBuilder) -> Result<(String, CompletionStat
     let text = data["message"]["content"]
         .as_str()
         .ok_or_else(|| anyhow!("Invalid response data: {data}"))?;
-    Ok((text.to_string(), CompletionStats::default()))
+    Ok((text.to_string(), CompletionDetails::default()))
 }
 
-async fn send_message_streaming(builder: RequestBuilder, handler: &mut ReplyHandler) -> Result<()> {
+async fn send_message_streaming(builder: RequestBuilder, handler: &mut SseHandler) -> Result<()> {
     let res = builder.send().await?;
     let status = res.status();
     if status != 200 {
diff --git a/src/client/openai.rs b/src/client/openai.rs
index eba0992..4c4eae2 100644
--- a/src/client/openai.rs
+++ b/src/client/openai.rs
@@ -1,6 +1,6 @@
 use super::{
-    catch_error, CompletionStats, ExtraConfig, Model, ModelConfig, OpenAIClient, PromptType,
-    ReplyHandler, SendData,
+    catch_error, CompletionDetails, ExtraConfig, Model, ModelConfig, OpenAIClient, PromptType,
+    SendData, SseHandler,
 };
 
 use crate::utils::PromptKind;
@@ -52,7 +52,7 @@ impl OpenAIClient {
     }
 }
 
-pub async fn openai_send_message(builder: RequestBuilder) -> Result<(String, CompletionStats)> {
+pub async fn openai_send_message(builder: RequestBuilder) -> Result<(String, CompletionDetails)> {
     let res = builder.send().await?;
     let status = res.status();
     let data: Value = res.json().await?;
@@ -65,7 +65,7 @@ pub async fn openai_send_message(builder: RequestBuilder) -> Result<(String, Com
 
 pub async fn openai_send_message_streaming(
     builder: RequestBuilder,
-    handler: &mut ReplyHandler,
+    handler: &mut SseHandler,
 ) -> Result<()> {
     let mut es = builder.eventsource()?;
     while let Some(event) = es.next().await {
@@ -140,16 +140,16 @@ pub fn openai_build_body(data: SendData, model: &Model) -> Value {
     body
 }
 
-pub fn openai_extract_completion(data: &Value) -> Result<(String, CompletionStats)> {
+pub fn openai_extract_completion(data: &Value) -> Result<(String, CompletionDetails)> {
     let text = data["choices"][0]["message"]["content"]
         .as_str()
         .ok_or_else(|| anyhow!("Invalid response data: {data}"))?;
-    let stats = CompletionStats {
+    let details = CompletionDetails {
         id: data["id"].as_str().map(|v| v.to_string()),
         input_tokens: data["usage"]["prompt_tokens"].as_u64(),
         output_tokens: data["usage"]["completion_tokens"].as_u64(),
     };
-    Ok((text.to_string(), stats))
+    Ok((text.to_string(), details))
 }
 
 impl_client_trait!(
diff --git a/src/client/qianwen.rs b/src/client/qianwen.rs
index 8a5a6d5..1f23385 100644
--- a/src/client/qianwen.rs
+++ b/src/client/qianwen.rs
@@ -1,6 +1,6 @@
 use super::{
-    maybe_catch_error, message::*, Client, CompletionStats, ExtraConfig, Model, ModelConfig,
-    PromptType, QianwenClient, ReplyHandler, SendData,
+    maybe_catch_error, message::*, Client, CompletionDetails, ExtraConfig, Model, ModelConfig,
+    PromptType, QianwenClient, SendData, SseHandler,
 };
 
 use crate::utils::{sha256sum, PromptKind};
@@ -77,7 +77,7 @@ impl Client for QianwenClient {
         &self,
         client: &ReqwestClient,
         mut data: SendData,
-    ) -> Result<(String, CompletionStats)> {
+    ) -> Result<(String, CompletionDetails)> {
         let api_key = self.get_api_key()?;
         patch_messages(&self.model.name, &api_key, &mut data.messages).await?;
         let builder = self.request_builder(client, data)?;
@@ -87,7 +87,7 @@ impl Client for QianwenClient {
     async fn send_message_streaming_inner(
         &self,
         client: &ReqwestClient,
-        handler: &mut ReplyHandler,
+        handler: &mut SseHandler,
         mut data: SendData,
     ) -> Result<()> {
         let api_key = self.get_api_key()?;
@@ -97,7 +97,7 @@ impl Client for QianwenClient {
     }
 }
 
-async fn send_message(builder: RequestBuilder, is_vl: bool) -> Result<(String, CompletionStats)> {
+async fn send_message(builder: RequestBuilder, is_vl: bool) -> Result<(String, CompletionDetails)> {
     let data: Value = builder.send().await?.json().await?;
     maybe_catch_error(&data)?;
 
@@ -106,7 +106,7 @@ async fn send_message(builder: RequestBuilder, is_vl: bool) -> Result<(String, C
 
 async fn send_message_streaming(
     builder: RequestBuilder,
-    handler: &mut ReplyHandler,
+    handler: &mut SseHandler,
     is_vl: bool,
 ) -> Result<()> {
     let mut es = builder.eventsource()?;
@@ -210,7 +210,7 @@ fn build_body(data: SendData, model: &Model, is_vl: bool) -> Result<(Value, bool
     Ok((body, has_upload))
 }
 
-fn extract_completion_text(data: &Value, is_vl: bool) -> Result<(String, CompletionStats)> {
+fn extract_completion_text(data: &Value, is_vl: bool) -> Result<(String, CompletionDetails)> {
     let err = || anyhow!("Invalid response data: {data}");
     let text = if is_vl {
         data["output"]["choices"][0]["message"]["content"][0]["text"]
@@ -219,13 +219,13 @@ fn extract_completion_text(data: &Value, is_vl: bool) -> Result<(String, Complet
     } else {
         data["output"]["text"].as_str().ok_or_else(err)?
     };
-    let stats = CompletionStats {
+    let details = CompletionDetails {
         id: data["request_id"].as_str().map(|v| v.to_string()),
         input_tokens: data["usage"]["input_tokens"].as_u64(),
         output_tokens: data["usage"]["output_tokens"].as_u64(),
     };
 
-    Ok((text.to_string(), stats))
+    Ok((text.to_string(), details))
 }
 
 /// Patch messsages, upload embedded images to oss
diff --git a/src/client/reply_handler.rs b/src/client/sse_handler.rs
index e024685..dbf78c2 100644
--- a/src/client/reply_handler.rs
+++ b/src/client/sse_handler.rs
@@ -3,14 +3,14 @@ use crate::utils::AbortSignal;
 use anyhow::{Context, Result};
 use tokio::sync::mpsc::UnboundedSender;
 
-pub struct ReplyHandler {
-    sender: UnboundedSender<ReplyEvent>,
+pub struct SseHandler {
+    sender: UnboundedSender<SseEvent>,
     buffer: String,
     abort: AbortSignal,
 }
 
-impl ReplyHandler {
-    pub fn new(sender: UnboundedSender<ReplyEvent>, abort: AbortSignal) -> Self {
+impl SseHandler {
+    pub fn new(sender: UnboundedSender<SseEvent>, abort: AbortSignal) -> Self {
         Self {
             sender,
             abort,
@@ -26,7 +26,7 @@ impl ReplyHandler {
         self.buffer.push_str(text);
         let ret = self
             .sender
-            .send(ReplyEvent::Text(text.to_string()))
+            .send(SseEvent::Text(text.to_string()))
             .with_context(|| "Failed to send ReplyEvent:Text");
         self.safe_ret(ret)?;
         Ok(())
@@ -36,7 +36,7 @@ impl ReplyHandler {
         // debug!("ReplyDone");
         let ret = self
             .sender
-            .send(ReplyEvent::Done)
+            .send(SseEvent::Done)
             .with_context(|| "Failed to send ReplyEvent::Done");
         self.safe_ret(ret)?;
         Ok(())
@@ -59,7 +59,7 @@ impl ReplyHandler {
 }
 
 #[derive(Debug)]
-pub enum ReplyEvent {
+pub enum SseEvent {
     Text(String),
     Done,
 }
diff --git a/src/client/vertexai.rs b/src/client/vertexai.rs
index f4079f0..529c822 100644
--- a/src/client/vertexai.rs
+++ b/src/client/vertexai.rs
@@ -1,7 +1,7 @@
 use super::claude::{claude_build_body, claude_send_message, claude_send_message_streaming};
 use super::{
-    catch_error, json_stream, message::*, patch_system_message, Client, CompletionStats,
-    ExtraConfig, Model, ModelConfig, PromptType, ReplyHandler, SendData, VertexAIClient,
+    catch_error, json_stream, message::*, patch_system_message, Client, CompletionDetails,
+    ExtraConfig, Model, ModelConfig, PromptType, SendData, SseHandler, VertexAIClient,
 };
 
 use crate::utils::PromptKind;
@@ -85,7 +85,7 @@ impl Client for VertexAIClient {
         &self,
         client: &ReqwestClient,
         data: SendData,
-    ) -> Result<(String, CompletionStats)> {
+    ) -> Result<(String, CompletionDetails)> {
         let model_category = ModelCategory::from_str(&self.model.name)?;
         self.prepare_access_token().await?;
         let builder = self.request_builder(client, data, &model_category)?;
@@ -98,7 +98,7 @@ impl Client for VertexAIClient {
     async fn send_message_streaming_inner(
         &self,
         client: &ReqwestClient,
-        handler: &mut ReplyHandler,
+        handler: &mut SseHandler,
         data: SendData,
     ) -> Result<()> {
         let model_category = ModelCategory::from_str(&self.model.name)?;
@@ -111,7 +111,7 @@ impl Client for VertexAIClient {
     }
 }
 
-pub async fn gemini_send_message(builder: RequestBuilder) -> Result<(String, CompletionStats)> {
+pub async fn gemini_send_message(builder: RequestBuilder) -> Result<(String, CompletionDetails)> {
     let res = builder.send().await?;
     let status = res.status();
     let data: Value = res.json().await?;
@@ -123,7 +123,7 @@ pub async fn gemini_send_message(builder: RequestBuilder) -> Result<(String, Com
 
 pub async fn gemini_send_message_streaming(
     builder: RequestBuilder,
-    handler: &mut ReplyHandler,
+    handler: &mut SseHandler,
 ) -> Result<()> {
     let res = builder.send().await?;
     let status = res.status();
@@ -141,14 +141,14 @@ pub async fn gemini_send_message_streaming(
     Ok(())
 }
 
-fn gemini_extract_completion_text(data: &Value) -> Result<(String, CompletionStats)> {
+fn gemini_extract_completion_text(data: &Value) -> Result<(String, CompletionDetails)> {
     let text = gemini_extract_text(data)?;
-    let stats = CompletionStats {
+    let details = CompletionDetails {
         id: None,
         input_tokens: data["usageMetadata"]["promptTokenCount"].as_u64(),
         output_tokens: data["usageMetadata"]["candidatesTokenCount"].as_u64(),
     };
-    Ok((text.to_string(), stats))
+    Ok((text.to_string(), details))
 }
 
 fn gemini_extract_text(data: &Value) -> Result<&str> {
diff --git a/src/render/mod.rs b/src/render/mod.rs
index 146577b..9487d69 100644
--- a/src/render/mod.rs
+++ b/src/render/mod.rs
@@ -5,7 +5,7 @@ pub use self::markdown::{MarkdownRender, RenderOptions};
 use self::stream::{markdown_stream, raw_stream};
 
 use crate::utils::AbortSignal;
-use crate::{client::ReplyEvent, config::GlobalConfig};
+use crate::{client::SseEvent, config::GlobalConfig};
 
 use anyhow::Result;
 use is_terminal::IsTerminal;
@@ -14,7 +14,7 @@ use std::io::stdout;
 use tokio::sync::mpsc::UnboundedReceiver;
 
 pub async fn render_stream(
-    rx: UnboundedReceiver<ReplyEvent>,
+    rx: UnboundedReceiver<SseEvent>,
     config: &GlobalConfig,
     abort: AbortSignal,
 ) -> Result<()> {
diff --git a/src/render/stream.rs b/src/render/stream.rs
index 6007690..f35831c 100644
--- a/src/render/stream.rs
+++ b/src/render/stream.rs
@@ -1,4 +1,4 @@
-use super::{MarkdownRender, ReplyEvent};
+use super::{MarkdownRender, SseEvent};
 
 use crate::utils::{run_spinner, AbortSignal};
 
@@ -17,7 +17,7 @@ use textwrap::core::display_width;
 use tokio::sync::{mpsc::UnboundedReceiver, oneshot};
 
 pub async fn markdown_stream(
-    rx: UnboundedReceiver<ReplyEvent>,
+    rx: UnboundedReceiver<SseEvent>,
     render: &mut MarkdownRender,
     abort: &AbortSignal,
 ) -> Result<()> {
@@ -31,18 +31,18 @@ pub async fn markdown_stream(
     ret
 }
 
-pub async fn raw_stream(mut rx: UnboundedReceiver<ReplyEvent>, abort: &AbortSignal) -> Result<()> {
+pub async fn raw_stream(mut rx: UnboundedReceiver<SseEvent>, abort: &AbortSignal) -> Result<()> {
     loop {
         if abort.aborted() {
             return Ok(());
         }
         if let Some(evt) = rx.recv().await {
             match evt {
-                ReplyEvent::Text(text) => {
+                SseEvent::Text(text) => {
                     print!("{}", text);
                     stdout().flush()?;
                 }
-                ReplyEvent::Done => {
+                SseEvent::Done => {
                     break;
                 }
             }
@@ -52,7 +52,7 @@ pub async fn raw_stream(mut rx: UnboundedReceiver<ReplyEvent>, abort: &AbortSign
 }
 
 async fn markdown_stream_inner(
-    mut rx: UnboundedReceiver<ReplyEvent>,
+    mut rx: UnboundedReceiver<SseEvent>,
     render: &mut MarkdownRender,
     abort: &AbortSignal,
     writer: &mut Stdout,
@@ -76,7 +76,7 @@ async fn markdown_stream_inner(
             }
 
             match reply_event {
-                ReplyEvent::Text(mut text) => {
+                SseEvent::Text(mut text) => {
                     // tab width hacking
                     text = text.replace('\t', "    ");
 
@@ -127,7 +127,7 @@ async fn markdown_stream_inner(
 
                     writer.flush()?;
                 }
-                ReplyEvent::Done => {
+                SseEvent::Done => {
                     break 'outer;
                 }
             }
@@ -156,15 +156,15 @@ async fn markdown_stream_inner(
     Ok(())
 }
 
-async fn gather_events(rx: &mut UnboundedReceiver<ReplyEvent>) -> Vec<ReplyEvent> {
+async fn gather_events(rx: &mut UnboundedReceiver<SseEvent>) -> Vec<SseEvent> {
     let mut texts = vec![];
     let mut done = false;
     tokio::select! {
         _ = async {
             while let Some(reply_event) = rx.recv().await {
                 match reply_event {
-                    ReplyEvent::Text(v) => texts.push(v),
-                    ReplyEvent::Done => {
+                    SseEvent::Text(v) => texts.push(v),
+                    SseEvent::Done => {
                         done = true;
                         break;
                     }
@@ -175,10 +175,10 @@ async fn gather_events(rx: &mut UnboundedReceiver<ReplyEvent>) -> Vec<ReplyEvent
     };
     let mut events = vec![];
     if !texts.is_empty() {
-        events.push(ReplyEvent::Text(texts.join("")))
+        events.push(SseEvent::Text(texts.join("")))
     }
     if done {
-        events.push(ReplyEvent::Done)
+        events.push(SseEvent::Done)
     }
     events
 }
diff --git a/src/serve.rs b/src/serve.rs
index 3d8b1a3..c5f8fd3 100644
--- a/src/serve.rs
+++ b/src/serve.rs
@@ -1,7 +1,7 @@
 use crate::{
     client::{
-        init_client, ClientConfig, CompletionStats, Message, Model, ReplyEvent, ReplyHandler,
-        SendData,
+        init_client, ClientConfig, CompletionDetails, Message, Model, SendData, SseEvent,
+        SseHandler,
     },
     config::{Config, GlobalConfig},
     utils::create_abort_signal,
@@ -184,9 +184,9 @@ impl Server {
             tokio::spawn(async move {
                 let mut is_first = true;
                 let (tx2, rx2) = unbounded_channel();
-                let mut handler = ReplyHandler::new(tx2, abort);
+                let mut handler = SseHandler::new(tx2, abort);
                 async fn map_event(
-                    mut rx: UnboundedReceiver<ReplyEvent>,
+                    mut rx: UnboundedReceiver<SseEvent>,
                     tx: &UnboundedSender<ResEvent>,
                     is_first: &mut bool,
                 ) {
@@ -196,10 +196,10 @@ impl Server {
                             *is_first = false;
                         }
                         match reply_event {
-                            ReplyEvent::Text(text) => {
+                            SseEvent::Text(text) => {
                                 let _ = tx.send(ResEvent::Text(text));
                             }
-                            ReplyEvent::Done => {
+                            SseEvent::Done => {
                                 let _ = tx.send(ResEvent::Done);
                             }
                         }
@@ -251,7 +251,7 @@ impl Server {
                 .body(BodyExt::boxed(StreamBody::new(stream)))?;
             Ok(res)
         } else {
-            let (content, stats) = client.send_message_inner(&http_client, send_data).await?;
+            let (content, details) = client.send_message_inner(&http_client, send_data).await?;
             let res = Response::builder()
                 .header("Content-Type", "application/json")
                 .body(
@@ -260,7 +260,7 @@ impl Server {
                         &model_name,
                         created,
                         &content,
-                        &stats,
+                        &details,
                     ))
                     .boxed(),
                 )?;
@@ -357,11 +357,11 @@ fn ret_non_stream(
     model: &str,
     created: i64,
     content: &str,
-    stats: &CompletionStats,
+    details: &CompletionDetails,
 ) -> Bytes {
-    let id = stats.id.as_deref().unwrap_or(id);
-    let input_tokens = stats.input_tokens.unwrap_or_default();
-    let output_tokens = stats.output_tokens.unwrap_or_default();
+    let id = details.id.as_deref().unwrap_or(id);
+    let input_tokens = details.input_tokens.unwrap_or_default();
+    let output_tokens = details.output_tokens.unwrap_or_default();
     let total_tokens = input_tokens + output_tokens;
     let res_body = json!({
         "id": id,