537 lines
16 KiB
Rust
537 lines
16 KiB
Rust
use crate::providers::traits::{
|
|
ChatMessage, ChatRequest as ProviderChatRequest, ChatResponse as ProviderChatResponse,
|
|
Provider, ToolCall as ProviderToolCall,
|
|
};
|
|
use crate::tools::ToolSpec;
|
|
use async_trait::async_trait;
|
|
use reqwest::Client;
|
|
use serde::{Deserialize, Serialize};
|
|
|
|
pub struct OpenRouterProvider {
|
|
api_key: Option<String>,
|
|
client: Client,
|
|
}
|
|
|
|
#[derive(Debug, Serialize)]
|
|
struct ChatRequest {
|
|
model: String,
|
|
messages: Vec<Message>,
|
|
temperature: f64,
|
|
}
|
|
|
|
#[derive(Debug, Serialize)]
|
|
struct Message {
|
|
role: String,
|
|
content: String,
|
|
}
|
|
|
|
#[derive(Debug, Deserialize)]
|
|
struct ApiChatResponse {
|
|
choices: Vec<Choice>,
|
|
}
|
|
|
|
#[derive(Debug, Deserialize)]
|
|
struct Choice {
|
|
message: ResponseMessage,
|
|
}
|
|
|
|
#[derive(Debug, Deserialize)]
|
|
struct ResponseMessage {
|
|
content: String,
|
|
}
|
|
|
|
#[derive(Debug, Serialize)]
|
|
struct NativeChatRequest {
|
|
model: String,
|
|
messages: Vec<NativeMessage>,
|
|
temperature: f64,
|
|
#[serde(skip_serializing_if = "Option::is_none")]
|
|
tools: Option<Vec<NativeToolSpec>>,
|
|
#[serde(skip_serializing_if = "Option::is_none")]
|
|
tool_choice: Option<String>,
|
|
}
|
|
|
|
#[derive(Debug, Serialize)]
|
|
struct NativeMessage {
|
|
role: String,
|
|
#[serde(skip_serializing_if = "Option::is_none")]
|
|
content: Option<String>,
|
|
#[serde(skip_serializing_if = "Option::is_none")]
|
|
tool_call_id: Option<String>,
|
|
#[serde(skip_serializing_if = "Option::is_none")]
|
|
tool_calls: Option<Vec<NativeToolCall>>,
|
|
}
|
|
|
|
#[derive(Debug, Serialize)]
|
|
struct NativeToolSpec {
|
|
#[serde(rename = "type")]
|
|
kind: String,
|
|
function: NativeToolFunctionSpec,
|
|
}
|
|
|
|
#[derive(Debug, Serialize)]
|
|
struct NativeToolFunctionSpec {
|
|
name: String,
|
|
description: String,
|
|
parameters: serde_json::Value,
|
|
}
|
|
|
|
#[derive(Debug, Serialize, Deserialize)]
|
|
struct NativeToolCall {
|
|
#[serde(skip_serializing_if = "Option::is_none")]
|
|
id: Option<String>,
|
|
#[serde(rename = "type", skip_serializing_if = "Option::is_none")]
|
|
kind: Option<String>,
|
|
function: NativeFunctionCall,
|
|
}
|
|
|
|
#[derive(Debug, Serialize, Deserialize)]
|
|
struct NativeFunctionCall {
|
|
name: String,
|
|
arguments: String,
|
|
}
|
|
|
|
#[derive(Debug, Deserialize)]
|
|
struct NativeChatResponse {
|
|
choices: Vec<NativeChoice>,
|
|
}
|
|
|
|
#[derive(Debug, Deserialize)]
|
|
struct NativeChoice {
|
|
message: NativeResponseMessage,
|
|
}
|
|
|
|
#[derive(Debug, Deserialize)]
|
|
struct NativeResponseMessage {
|
|
#[serde(default)]
|
|
content: Option<String>,
|
|
#[serde(default)]
|
|
tool_calls: Option<Vec<NativeToolCall>>,
|
|
}
|
|
|
|
impl OpenRouterProvider {
|
|
pub fn new(api_key: Option<&str>) -> Self {
|
|
Self {
|
|
api_key: api_key.map(ToString::to_string),
|
|
client: Client::builder()
|
|
.timeout(std::time::Duration::from_secs(120))
|
|
.connect_timeout(std::time::Duration::from_secs(10))
|
|
.build()
|
|
.unwrap_or_else(|_| Client::new()),
|
|
}
|
|
}
|
|
|
|
fn convert_tools(tools: Option<&[ToolSpec]>) -> Option<Vec<NativeToolSpec>> {
|
|
let items = tools?;
|
|
if items.is_empty() {
|
|
return None;
|
|
}
|
|
Some(
|
|
items
|
|
.iter()
|
|
.map(|tool| NativeToolSpec {
|
|
kind: "function".to_string(),
|
|
function: NativeToolFunctionSpec {
|
|
name: tool.name.clone(),
|
|
description: tool.description.clone(),
|
|
parameters: tool.parameters.clone(),
|
|
},
|
|
})
|
|
.collect(),
|
|
)
|
|
}
|
|
|
|
fn convert_messages(messages: &[ChatMessage]) -> Vec<NativeMessage> {
|
|
messages
|
|
.iter()
|
|
.map(|m| {
|
|
if m.role == "assistant" {
|
|
if let Ok(value) = serde_json::from_str::<serde_json::Value>(&m.content) {
|
|
if let Some(tool_calls_value) = value.get("tool_calls") {
|
|
if let Ok(parsed_calls) =
|
|
serde_json::from_value::<Vec<ProviderToolCall>>(
|
|
tool_calls_value.clone(),
|
|
)
|
|
{
|
|
let tool_calls = parsed_calls
|
|
.into_iter()
|
|
.map(|tc| NativeToolCall {
|
|
id: Some(tc.id),
|
|
kind: Some("function".to_string()),
|
|
function: NativeFunctionCall {
|
|
name: tc.name,
|
|
arguments: tc.arguments,
|
|
},
|
|
})
|
|
.collect::<Vec<_>>();
|
|
let content = value
|
|
.get("content")
|
|
.and_then(serde_json::Value::as_str)
|
|
.map(ToString::to_string);
|
|
return NativeMessage {
|
|
role: "assistant".to_string(),
|
|
content,
|
|
tool_call_id: None,
|
|
tool_calls: Some(tool_calls),
|
|
};
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if m.role == "tool" {
|
|
if let Ok(value) = serde_json::from_str::<serde_json::Value>(&m.content) {
|
|
let tool_call_id = value
|
|
.get("tool_call_id")
|
|
.and_then(serde_json::Value::as_str)
|
|
.map(ToString::to_string);
|
|
let content = value
|
|
.get("content")
|
|
.and_then(serde_json::Value::as_str)
|
|
.map(ToString::to_string);
|
|
return NativeMessage {
|
|
role: "tool".to_string(),
|
|
content,
|
|
tool_call_id,
|
|
tool_calls: None,
|
|
};
|
|
}
|
|
}
|
|
|
|
NativeMessage {
|
|
role: m.role.clone(),
|
|
content: Some(m.content.clone()),
|
|
tool_call_id: None,
|
|
tool_calls: None,
|
|
}
|
|
})
|
|
.collect()
|
|
}
|
|
|
|
fn parse_native_response(message: NativeResponseMessage) -> ProviderChatResponse {
|
|
let tool_calls = message
|
|
.tool_calls
|
|
.unwrap_or_default()
|
|
.into_iter()
|
|
.map(|tc| ProviderToolCall {
|
|
id: tc.id.unwrap_or_else(|| uuid::Uuid::new_v4().to_string()),
|
|
name: tc.function.name,
|
|
arguments: tc.function.arguments,
|
|
})
|
|
.collect::<Vec<_>>();
|
|
|
|
ProviderChatResponse {
|
|
text: message.content,
|
|
tool_calls,
|
|
}
|
|
}
|
|
}
|
|
|
|
#[async_trait]
|
|
impl Provider for OpenRouterProvider {
|
|
async fn warmup(&self) -> anyhow::Result<()> {
|
|
// Hit a lightweight endpoint to establish TLS + HTTP/2 connection pool.
|
|
// This prevents the first real chat request from timing out on cold start.
|
|
if let Some(api_key) = self.api_key.as_ref() {
|
|
self.client
|
|
.get("https://openrouter.ai/api/v1/auth/key")
|
|
.header("Authorization", format!("Bearer {api_key}"))
|
|
.send()
|
|
.await?
|
|
.error_for_status()?;
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
async fn chat_with_system(
|
|
&self,
|
|
system_prompt: Option<&str>,
|
|
message: &str,
|
|
model: &str,
|
|
temperature: f64,
|
|
) -> anyhow::Result<String> {
|
|
let api_key = self.api_key.as_ref()
|
|
.ok_or_else(|| anyhow::anyhow!("OpenRouter API key not set. Run `zeroclaw onboard` or set OPENROUTER_API_KEY env var."))?;
|
|
|
|
let mut messages = Vec::new();
|
|
|
|
if let Some(sys) = system_prompt {
|
|
messages.push(Message {
|
|
role: "system".to_string(),
|
|
content: sys.to_string(),
|
|
});
|
|
}
|
|
|
|
messages.push(Message {
|
|
role: "user".to_string(),
|
|
content: message.to_string(),
|
|
});
|
|
|
|
let request = ChatRequest {
|
|
model: model.to_string(),
|
|
messages,
|
|
temperature,
|
|
};
|
|
|
|
let response = self
|
|
.client
|
|
.post("https://openrouter.ai/api/v1/chat/completions")
|
|
.header("Authorization", format!("Bearer {api_key}"))
|
|
.header(
|
|
"HTTP-Referer",
|
|
"https://github.com/theonlyhennygod/zeroclaw",
|
|
)
|
|
.header("X-Title", "ZeroClaw")
|
|
.json(&request)
|
|
.send()
|
|
.await?;
|
|
|
|
if !response.status().is_success() {
|
|
return Err(super::api_error("OpenRouter", response).await);
|
|
}
|
|
|
|
let chat_response: ApiChatResponse = response.json().await?;
|
|
|
|
chat_response
|
|
.choices
|
|
.into_iter()
|
|
.next()
|
|
.map(|c| c.message.content)
|
|
.ok_or_else(|| anyhow::anyhow!("No response from OpenRouter"))
|
|
}
|
|
|
|
async fn chat_with_history(
|
|
&self,
|
|
messages: &[ChatMessage],
|
|
model: &str,
|
|
temperature: f64,
|
|
) -> anyhow::Result<String> {
|
|
let api_key = self.api_key.as_ref()
|
|
.ok_or_else(|| anyhow::anyhow!("OpenRouter API key not set. Run `zeroclaw onboard` or set OPENROUTER_API_KEY env var."))?;
|
|
|
|
let api_messages: Vec<Message> = messages
|
|
.iter()
|
|
.map(|m| Message {
|
|
role: m.role.clone(),
|
|
content: m.content.clone(),
|
|
})
|
|
.collect();
|
|
|
|
let request = ChatRequest {
|
|
model: model.to_string(),
|
|
messages: api_messages,
|
|
temperature,
|
|
};
|
|
|
|
let response = self
|
|
.client
|
|
.post("https://openrouter.ai/api/v1/chat/completions")
|
|
.header("Authorization", format!("Bearer {api_key}"))
|
|
.header(
|
|
"HTTP-Referer",
|
|
"https://github.com/theonlyhennygod/zeroclaw",
|
|
)
|
|
.header("X-Title", "ZeroClaw")
|
|
.json(&request)
|
|
.send()
|
|
.await?;
|
|
|
|
if !response.status().is_success() {
|
|
return Err(super::api_error("OpenRouter", response).await);
|
|
}
|
|
|
|
let chat_response: ApiChatResponse = response.json().await?;
|
|
|
|
chat_response
|
|
.choices
|
|
.into_iter()
|
|
.next()
|
|
.map(|c| c.message.content)
|
|
.ok_or_else(|| anyhow::anyhow!("No response from OpenRouter"))
|
|
}
|
|
|
|
async fn chat(
|
|
&self,
|
|
request: ProviderChatRequest<'_>,
|
|
model: &str,
|
|
temperature: f64,
|
|
) -> anyhow::Result<ProviderChatResponse> {
|
|
let api_key = self.api_key.as_ref().ok_or_else(|| {
|
|
anyhow::anyhow!(
|
|
"OpenRouter API key not set. Run `zeroclaw onboard` or set OPENROUTER_API_KEY env var."
|
|
)
|
|
})?;
|
|
|
|
let tools = Self::convert_tools(request.tools);
|
|
let native_request = NativeChatRequest {
|
|
model: model.to_string(),
|
|
messages: Self::convert_messages(request.messages),
|
|
temperature,
|
|
tool_choice: tools.as_ref().map(|_| "auto".to_string()),
|
|
tools,
|
|
};
|
|
|
|
let response = self
|
|
.client
|
|
.post("https://openrouter.ai/api/v1/chat/completions")
|
|
.header("Authorization", format!("Bearer {api_key}"))
|
|
.header(
|
|
"HTTP-Referer",
|
|
"https://github.com/theonlyhennygod/zeroclaw",
|
|
)
|
|
.header("X-Title", "ZeroClaw")
|
|
.json(&native_request)
|
|
.send()
|
|
.await?;
|
|
|
|
if !response.status().is_success() {
|
|
return Err(super::api_error("OpenRouter", response).await);
|
|
}
|
|
|
|
let native_response: NativeChatResponse = response.json().await?;
|
|
let message = native_response
|
|
.choices
|
|
.into_iter()
|
|
.next()
|
|
.map(|c| c.message)
|
|
.ok_or_else(|| anyhow::anyhow!("No response from OpenRouter"))?;
|
|
Ok(Self::parse_native_response(message))
|
|
}
|
|
|
|
fn supports_native_tools(&self) -> bool {
|
|
true
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use crate::providers::traits::{ChatMessage, Provider};
|
|
|
|
#[test]
|
|
fn creates_with_key() {
|
|
let provider = OpenRouterProvider::new(Some("sk-or-123"));
|
|
assert_eq!(provider.api_key.as_deref(), Some("sk-or-123"));
|
|
}
|
|
|
|
#[test]
|
|
fn creates_without_key() {
|
|
let provider = OpenRouterProvider::new(None);
|
|
assert!(provider.api_key.is_none());
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn warmup_without_key_is_noop() {
|
|
let provider = OpenRouterProvider::new(None);
|
|
let result = provider.warmup().await;
|
|
assert!(result.is_ok());
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn chat_with_system_fails_without_key() {
|
|
let provider = OpenRouterProvider::new(None);
|
|
let result = provider
|
|
.chat_with_system(Some("system"), "hello", "openai/gpt-4o", 0.2)
|
|
.await;
|
|
|
|
assert!(result.is_err());
|
|
assert!(result.unwrap_err().to_string().contains("API key not set"));
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn chat_with_history_fails_without_key() {
|
|
let provider = OpenRouterProvider::new(None);
|
|
let messages = vec![
|
|
ChatMessage {
|
|
role: "system".into(),
|
|
content: "be concise".into(),
|
|
},
|
|
ChatMessage {
|
|
role: "user".into(),
|
|
content: "hello".into(),
|
|
},
|
|
];
|
|
|
|
let result = provider
|
|
.chat_with_history(&messages, "anthropic/claude-sonnet-4", 0.7)
|
|
.await;
|
|
|
|
assert!(result.is_err());
|
|
assert!(result.unwrap_err().to_string().contains("API key not set"));
|
|
}
|
|
|
|
#[test]
|
|
fn chat_request_serializes_with_system_and_user() {
|
|
let request = ChatRequest {
|
|
model: "anthropic/claude-sonnet-4".into(),
|
|
messages: vec![
|
|
Message {
|
|
role: "system".into(),
|
|
content: "You are helpful".into(),
|
|
},
|
|
Message {
|
|
role: "user".into(),
|
|
content: "Summarize this".into(),
|
|
},
|
|
],
|
|
temperature: 0.5,
|
|
};
|
|
|
|
let json = serde_json::to_string(&request).unwrap();
|
|
|
|
assert!(json.contains("anthropic/claude-sonnet-4"));
|
|
assert!(json.contains("\"role\":\"system\""));
|
|
assert!(json.contains("\"role\":\"user\""));
|
|
assert!(json.contains("\"temperature\":0.5"));
|
|
}
|
|
|
|
#[test]
|
|
fn chat_request_serializes_history_messages() {
|
|
let messages = [
|
|
ChatMessage {
|
|
role: "assistant".into(),
|
|
content: "Previous answer".into(),
|
|
},
|
|
ChatMessage {
|
|
role: "user".into(),
|
|
content: "Follow-up".into(),
|
|
},
|
|
];
|
|
|
|
let request = ChatRequest {
|
|
model: "google/gemini-2.5-pro".into(),
|
|
messages: messages
|
|
.iter()
|
|
.map(|msg| Message {
|
|
role: msg.role.clone(),
|
|
content: msg.content.clone(),
|
|
})
|
|
.collect(),
|
|
temperature: 0.0,
|
|
};
|
|
|
|
let json = serde_json::to_string(&request).unwrap();
|
|
assert!(json.contains("\"role\":\"assistant\""));
|
|
assert!(json.contains("\"role\":\"user\""));
|
|
assert!(json.contains("google/gemini-2.5-pro"));
|
|
}
|
|
|
|
#[test]
|
|
fn response_deserializes_single_choice() {
|
|
let json = r#"{"choices":[{"message":{"content":"Hi from OpenRouter"}}]}"#;
|
|
|
|
let response: ApiChatResponse = serde_json::from_str(json).unwrap();
|
|
|
|
assert_eq!(response.choices.len(), 1);
|
|
assert_eq!(response.choices[0].message.content, "Hi from OpenRouter");
|
|
}
|
|
|
|
#[test]
|
|
fn response_deserializes_empty_choices() {
|
|
let json = r#"{"choices":[]}"#;
|
|
|
|
let response: ApiChatResponse = serde_json::from_str(json).unwrap();
|
|
|
|
assert!(response.choices.is_empty());
|
|
}
|
|
}
|