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use anyhow::Result;
use serde::{Deserialize, Serialize};
use serde_json::{json, Value};
#[derive(Debug, Clone, Deserialize, Serialize)]
pub struct Session {
pub tokens: usize,
pub messages: Vec<Message>,
}
#[derive(Debug, Clone, Deserialize, Serialize)]
pub struct Message {
pub role: MessageRole,
pub content: String,
}
impl Session {
pub fn new() -> Self {
Self {
tokens: 0,
messages: vec![],
}
}
pub fn add_conversatoin(&mut self, input: &str, output: &str) -> Result<()> {
self.messages.push(Message {
role: MessageRole::User,
content: input.to_string(),
});
self.messages.push(Message {
role: MessageRole::Assistant,
content: output.to_string(),
});
Ok(())
}
/// Readline prompt
pub fn add_prompt(&mut self, prompt: &str) {
self.messages.push(Message {
role: MessageRole::System,
content: prompt.into(),
});
}
pub fn echo_messages(&self, content: &str) -> String {
let mut messages = self.messages.to_vec();
messages.push(Message {
role: MessageRole::User,
content: content.into(),
});
serde_yaml::to_string(&messages).unwrap_or("Unable to echo message".into())
}
pub fn build_emssages(&self, content: &str) -> Value {
let mut messages: Vec<Value> = self.messages.iter().map(msg_to_value).collect();
messages.push(msg_to_value(&Message {
role: MessageRole::User,
content: content.into(),
}));
json!(messages)
}
}
#[derive(Debug, Clone, Deserialize, Serialize)]
pub enum MessageRole {
System,
Assistant,
User,
}
impl MessageRole {
pub fn name(&self) -> &'static str {
match self {
MessageRole::System => "system",
MessageRole::Assistant => "assistant",
MessageRole::User => "user",
}
}
}
fn msg_to_value(msg: &Message) -> Value {
json!({ "role": msg.role.name(), "content": msg.content })
}
|
