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|
use reqwest::Client;
use serde::{Deserialize, Serialize};
use crate::error::Result;
use crate::lang;
pub struct OpenRouterClient {
api_key: String,
model: String,
client: Client,
}
#[derive(Serialize)]
struct ChatRequest {
model: String,
messages: Vec<Message>,
max_tokens: u32,
}
#[derive(Serialize)]
struct Message {
role: String,
content: String,
}
#[derive(Deserialize)]
struct ChatResponse {
choices: Vec<Choice>,
}
#[derive(Deserialize)]
struct Choice {
message: MessageContent,
}
#[derive(Deserialize)]
struct MessageContent {
content: String,
}
impl OpenRouterClient {
pub fn new(api_key: String, model: String) -> Self {
Self {
api_key,
model,
client: Client::new(),
}
}
pub async fn chat(&self, system_prompt: &str, user_message: &str) -> Result<String> {
let body = ChatRequest {
model: self.model.clone(),
messages: vec![
Message {
role: "system".into(),
content: system_prompt.to_string(),
},
Message {
role: "user".into(),
content: user_message.to_string(),
},
],
max_tokens: 500,
};
let resp = self
.client
.post("https://openrouter.ai/api/v1/chat/completions")
.header("Authorization", format!("Bearer {}", self.api_key))
.json(&body)
.send()
.await?;
if !resp.status().is_success() {
let status = resp.status();
let text = resp.text().await.unwrap_or_default();
return Err(crate::error::Error::Custom(lang::fmt_openrouter_err(
&status, &text,
)));
}
let chat_resp: ChatResponse = resp.json().await?;
Ok(chat_resp
.choices
.into_iter()
.next()
.map(|c| c.message.content)
.unwrap_or_default())
}
pub async fn chat_with_history(
&self,
system_prompt: &str,
messages: Vec<(String, String)>, // (role, content) pairs
) -> Result<String> {
let mut msg_vec = vec![Message {
role: "system".into(),
content: system_prompt.to_string(),
}];
for (role, content) in messages {
msg_vec.push(Message { role, content });
}
let body = ChatRequest {
model: self.model.clone(),
messages: msg_vec,
max_tokens: 500,
};
let resp = self
.client
.post("https://openrouter.ai/api/v1/chat/completions")
.header("Authorization", format!("Bearer {}", self.api_key))
.json(&body)
.send()
.await?;
if !resp.status().is_success() {
let status = resp.status();
let text = resp.text().await.unwrap_or_default();
return Err(crate::error::Error::Custom(lang::fmt_openrouter_err(
&status, &text,
)));
}
let chat_resp: ChatResponse = resp.json().await?;
Ok(chat_resp
.choices
.into_iter()
.next()
.map(|c| c.message.content)
.unwrap_or_default())
}
}
|
