- Added ToolEmbeddingDyn trait for McpToolAdaptor to enable dynamic loading of McpTool - Enhanced logging to record details Co-authored-by: byeblack <byeblack@misaki.red>
124 lines
4.4 KiB
Rust
124 lines
4.4 KiB
Rust
use futures::StreamExt;
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use rig::{
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agent::Agent,
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message::Message,
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streaming::{StreamingChat, StreamingChoice, StreamingCompletionModel},
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};
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use tokio::io::{AsyncBufReadExt, AsyncWriteExt, BufReader, BufWriter};
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pub async fn cli_chatbot<M: StreamingCompletionModel>(chatbot: Agent<M>) -> anyhow::Result<()> {
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let mut chat_log = vec![];
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let mut output = BufWriter::new(tokio::io::stdout());
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let mut input = BufReader::new(tokio::io::stdin());
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output.write_all(b"Enter :q to quit\n").await?;
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loop {
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output.write_all(b"\x1b[32muser>\x1b[0m ").await?;
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// Flush stdout to ensure the prompt appears before input
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output.flush().await?;
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let mut input_buf = String::new();
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input.read_line(&mut input_buf).await?;
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// Remove the newline character from the input
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let input = input_buf.trim();
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// Check for a command to exit
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if input == ":q" {
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break;
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}
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match chatbot.stream_chat(input, chat_log.clone()).await {
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Ok(mut response) => {
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tracing::info!(%input);
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chat_log.push(Message::user(input));
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stream_output_agent_start(&mut output).await?;
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let mut message_buf = String::new();
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while let Some(message) = response.next().await {
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match message {
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Ok(StreamingChoice::Message(text)) => {
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message_buf.push_str(&text);
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output_agent(text, &mut output).await?;
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}
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Ok(StreamingChoice::ToolCall(name, _, param)) => {
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chat_log.push(Message::assistant(format!(
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"Calling tool: {name} with args: {param}"
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)));
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let result = chatbot.tools.call(&name, param.to_string()).await;
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match result {
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Ok(tool_call_result) => {
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stream_output_agent_finished(&mut output).await?;
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stream_output_toolcall(&tool_call_result, &mut output).await?;
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stream_output_agent_start(&mut output).await?;
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chat_log.push(Message::user(tool_call_result));
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}
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Err(e) => {
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output_error(e, &mut output).await?;
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}
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}
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}
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Err(error) => {
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output_error(error, &mut output).await?;
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}
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}
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}
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chat_log.push(Message::assistant(message_buf));
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stream_output_agent_finished(&mut output).await?;
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}
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Err(error) => {
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output_error(error, &mut output).await?;
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}
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}
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}
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Ok(())
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}
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pub async fn output_error(
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e: impl std::fmt::Display,
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output: &mut BufWriter<tokio::io::Stdout>,
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) -> std::io::Result<()> {
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output
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.write_all(b"\x1b[1;31m\xE2\x9D\x8C ERROR: \x1b[0m")
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.await?;
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output.write_all(e.to_string().as_bytes()).await?;
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output.write_all(b"\n").await?;
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output.flush().await?;
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Ok(())
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}
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pub async fn output_agent(
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content: impl std::fmt::Display,
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output: &mut BufWriter<tokio::io::Stdout>,
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) -> std::io::Result<()> {
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output.write_all(content.to_string().as_bytes()).await?;
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output.flush().await?;
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Ok(())
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}
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pub async fn stream_output_toolcall(
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content: impl std::fmt::Display,
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output: &mut BufWriter<tokio::io::Stdout>,
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) -> std::io::Result<()> {
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output
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.write_all(b"\x1b[1;33m\xF0\x9F\x9B\xA0 Tool Call: \x1b[0m")
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.await?;
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output.write_all(content.to_string().as_bytes()).await?;
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output.write_all(b"\n").await?;
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output.flush().await?;
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Ok(())
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}
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pub async fn stream_output_agent_start(
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output: &mut BufWriter<tokio::io::Stdout>,
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) -> std::io::Result<()> {
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output
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.write_all(b"\x1b[1;34m\xF0\x9F\xA4\x96 Agent: \x1b[0m")
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.await?;
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output.flush().await?;
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Ok(())
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}
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pub async fn stream_output_agent_finished(
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output: &mut BufWriter<tokio::io::Stdout>,
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) -> std::io::Result<()> {
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output.write_all(b"\n").await?;
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output.flush().await?;
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Ok(())
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}
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