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|
use crate::{function::ToolResult, utils::dimmed_text};
use serde::{Deserialize, Serialize};
#[derive(Debug, Clone, Deserialize, Serialize)]
pub struct Message {
pub role: MessageRole,
pub content: MessageContent,
}
impl Default for Message {
fn default() -> Self {
Self {
role: MessageRole::User,
content: MessageContent::Text(String::new()),
}
}
}
impl Message {
pub fn new(role: MessageRole, content: MessageContent) -> Self {
Self { role, content }
}
pub fn merge_system(&mut self, system: &str) {
match &mut self.content {
MessageContent::Text(text) => {
self.content = MessageContent::Array(vec![
MessageContentPart::Text {
text: system.to_string(),
},
MessageContentPart::Text {
text: text.to_string(),
},
]);
}
MessageContent::Array(list) => {
list.insert(
0,
MessageContentPart::Text {
text: system.to_string(),
},
);
}
_ => {}
}
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Deserialize, Serialize)]
#[serde(rename_all = "snake_case")]
pub enum MessageRole {
System,
Assistant,
User,
Tool,
}
#[allow(dead_code)]
impl MessageRole {
pub fn is_system(&self) -> bool {
matches!(self, MessageRole::System)
}
pub fn is_user(&self) -> bool {
matches!(self, MessageRole::User)
}
}
#[derive(Debug, Clone, Deserialize, Serialize)]
#[serde(untagged)]
pub enum MessageContent {
Text(String),
Array(Vec<MessageContentPart>),
// Note: This type is primarily for convenience and does not exist in OpenAI's API.
ToolCalls(MessageContentToolCalls),
}
impl MessageContent {
pub fn render_input(
&self,
resolve_url_fn: impl Fn(&str) -> String,
agent_info: &Option<(String, Vec<String>)>,
) -> String {
match self {
MessageContent::Text(text) => text.to_string(),
MessageContent::Array(list) => {
let (mut concated_text, mut files) = (String::new(), vec![]);
for item in list {
match item {
MessageContentPart::Text { text } => {
concated_text = format!("{concated_text} {text}")
}
MessageContentPart::ImageUrl { image_url } => {
files.push(resolve_url_fn(&image_url.url))
}
}
}
if !concated_text.is_empty() {
concated_text = format!(" -- {concated_text}")
}
format!(".file {}{}", files.join(" "), concated_text)
}
MessageContent::ToolCalls(MessageContentToolCalls {
tool_results, text, ..
}) => {
let mut lines = vec![];
if !text.is_empty() {
lines.push(text.clone())
}
for tool_result in tool_results {
let mut parts = vec!["Call".to_string()];
if let Some((agent_name, functions)) = agent_info {
if functions.contains(&tool_result.call.name) {
parts.push(agent_name.clone())
}
}
parts.push(tool_result.call.name.clone());
parts.push(tool_result.call.arguments.to_string());
lines.push(dimmed_text(&parts.join(" ")));
}
lines.join("\n")
}
}
}
pub fn merge_prompt(&mut self, replace_fn: impl Fn(&str) -> String) {
match self {
MessageContent::Text(text) => *text = replace_fn(text),
MessageContent::Array(list) => {
if list.is_empty() {
list.push(MessageContentPart::Text {
text: replace_fn(""),
})
} else if let Some(MessageContentPart::Text { text }) = list.get_mut(0) {
*text = replace_fn(text)
}
}
MessageContent::ToolCalls(_) => {}
}
}
pub fn to_text(&self) -> String {
match self {
MessageContent::Text(text) => text.to_string(),
MessageContent::Array(list) => {
let mut parts = vec![];
for item in list {
if let MessageContentPart::Text { text } = item {
parts.push(text.clone())
}
}
parts.join("\n\n")
}
MessageContent::ToolCalls(_) => String::new(),
}
}
}
#[derive(Debug, Clone, Deserialize, Serialize)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum MessageContentPart {
Text { text: String },
ImageUrl { image_url: ImageUrl },
}
#[derive(Debug, Clone, Deserialize, Serialize)]
pub struct ImageUrl {
pub url: String,
}
#[derive(Debug, Clone, Deserialize, Serialize)]
pub struct MessageContentToolCalls {
pub tool_results: Vec<ToolResult>,
pub text: String,
pub sequence: bool,
}
impl MessageContentToolCalls {
pub fn new(tool_results: Vec<ToolResult>, text: String) -> Self {
Self {
tool_results,
text,
sequence: false,
}
}
pub fn merge(&mut self, tool_results: Vec<ToolResult>, _text: String) {
self.tool_results.extend(tool_results);
self.text.clear();
self.sequence = true;
}
}
pub fn patch_system_message(messages: &mut Vec<Message>) {
if messages[0].role.is_system() {
let system_message = messages.remove(0);
if let (Some(message), MessageContent::Text(system)) =
(messages.get_mut(0), system_message.content)
{
message.merge_system(&system);
}
}
}
pub fn extract_system_message(messages: &mut Vec<Message>) -> Option<String> {
if messages[0].role.is_system() {
let system_message = messages.remove(0);
return Some(system_message.content.to_text());
}
None
}
|
