From 0d0097b003523c2e6c75f74983b1b2224f4b934e Mon Sep 17 00:00:00 2001 From: zyl Date: Wed, 25 Mar 2026 04:24:59 +0000 Subject: [PATCH] feat: add deepseek provider scaffolding --- Cargo.lock | 1171 ++++++++++++++++++++++++++++++- Cargo.toml | 1 + src/config/mod.rs | 3 + src/config/settings.rs | 46 ++ src/lib.rs | 2 + src/llm/deepseek.rs | 154 ++++ src/llm/mod.rs | 5 + src/llm/provider.rs | 45 ++ tests/deepseek_provider_test.rs | 67 ++ 9 files changed, 1490 insertions(+), 4 deletions(-) create mode 100644 src/config/mod.rs create mode 100644 src/config/settings.rs create mode 100644 src/llm/deepseek.rs create mode 100644 src/llm/mod.rs create mode 100644 src/llm/provider.rs create mode 100644 tests/deepseek_provider_test.rs diff --git a/Cargo.lock b/Cargo.lock index 6f7db36..84678ee 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -8,6 +8,18 @@ version = "1.0.102" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = 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features = ["blocking", "json", "rustls-tls"] } serde = { version = "1", features = ["derive"] } serde_json = "1" sha2 = "0.10" diff --git a/src/config/mod.rs b/src/config/mod.rs new file mode 100644 index 0000000..045e4bd --- /dev/null +++ b/src/config/mod.rs @@ -0,0 +1,3 @@ +mod settings; + +pub use settings::{ConfigError, DeepSeekSettings}; diff --git a/src/config/settings.rs b/src/config/settings.rs new file mode 100644 index 0000000..f2b6d1c --- /dev/null +++ b/src/config/settings.rs @@ -0,0 +1,46 @@ +use thiserror::Error; + +const DEFAULT_DEEPSEEK_BASE_URL: &str = "https://api.deepseek.com"; +const DEFAULT_DEEPSEEK_MODEL: &str = "deepseek-chat"; + +#[derive(Debug, Clone, PartialEq, Eq)] +pub struct DeepSeekSettings { + pub api_key: String, + pub base_url: String, + pub model: String, +} + +impl DeepSeekSettings { + pub fn from_env() -> Result { + let api_key = std::env::var("DEEPSEEK_API_KEY") + .map_err(|_| ConfigError::MissingEnv("DEEPSEEK_API_KEY"))?; + let base_url = std::env::var("DEEPSEEK_BASE_URL") + .unwrap_or_else(|_| DEFAULT_DEEPSEEK_BASE_URL.to_string()); + let model = + std::env::var("DEEPSEEK_MODEL").unwrap_or_else(|_| DEFAULT_DEEPSEEK_MODEL.to_string()); + + if api_key.trim().is_empty() { + return Err(ConfigError::EmptyValue("DEEPSEEK_API_KEY")); + } + if base_url.trim().is_empty() { + return Err(ConfigError::EmptyValue("DEEPSEEK_BASE_URL")); + } + if model.trim().is_empty() { + return Err(ConfigError::EmptyValue("DEEPSEEK_MODEL")); + } + + Ok(Self { + api_key, + base_url, + model, + }) + } +} + +#[derive(Debug, Error, Clone, PartialEq, Eq)] +pub enum ConfigError { + #[error("missing environment variable: {0}")] + MissingEnv(&'static str), + #[error("environment variable must not be empty: {0}")] + EmptyValue(&'static str), +} diff --git a/src/lib.rs b/src/lib.rs index 074cf0e..cd4c829 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,4 +1,6 @@ pub mod agent; +pub mod config; +pub mod llm; pub mod pipe; pub mod security; diff --git a/src/llm/deepseek.rs b/src/llm/deepseek.rs new file mode 100644 index 0000000..4448113 --- /dev/null +++ b/src/llm/deepseek.rs @@ -0,0 +1,154 @@ +use reqwest::blocking::Client; +use serde::{Deserialize, Serialize}; +use serde_json::Value; + +use crate::config::DeepSeekSettings; +use crate::llm::provider::{ChatMessage, LlmError, LlmProvider, ToolDefinition, ToolFunctionCall}; + +#[derive(Debug, Clone)] +pub struct DeepSeekProvider { + settings: DeepSeekSettings, + client: Client, +} + +impl DeepSeekProvider { + pub fn from_env() -> Result { + Ok(Self::new(DeepSeekSettings::from_env()?)) + } + + pub fn new(settings: DeepSeekSettings) -> Self { + Self { + settings, + client: Client::new(), + } + } + + pub fn settings(&self) -> &DeepSeekSettings { + &self.settings + } + + pub fn build_chat_request( + &self, + messages: &[ChatMessage], + tools: &[ToolDefinition], + ) -> DeepSeekChatRequest { + DeepSeekChatRequest { + model: self.settings.model.clone(), + messages: messages.to_vec(), + tools: if tools.is_empty() { + None + } else { + Some( + tools + .iter() + .cloned() + .map(|tool| DeepSeekToolDefinition { + tool_type: "function".to_string(), + function: DeepSeekFunctionDefinition { + name: tool.name, + description: tool.description, + parameters: tool.parameters, + }, + }) + .collect(), + ) + }, + stream: false, + } + } + + fn completions_url(&self) -> String { + format!( + "{}/chat/completions", + self.settings.base_url.trim_end_matches('/') + ) + } +} + +impl LlmProvider for DeepSeekProvider { + fn chat( + &self, + messages: &[ChatMessage], + tools: &[ToolDefinition], + ) -> Result, LlmError> { + let response = self + .client + .post(self.completions_url()) + .bearer_auth(&self.settings.api_key) + .json(&self.build_chat_request(messages, tools)) + .send()? + .error_for_status()? + .json::()?; + + let tool_calls = response + .choices + .into_iter() + .next() + .and_then(|choice| choice.message.tool_calls) + .ok_or(LlmError::NoToolCalls)?; + + tool_calls + .into_iter() + .map(|call| { + let arguments = serde_json::from_str(&call.function.arguments) + .map_err(|err| LlmError::InvalidToolArguments(err.to_string()))?; + Ok(ToolFunctionCall { + id: call.id, + name: call.function.name, + arguments, + }) + }) + .collect() + } +} + +#[derive(Debug, Clone, PartialEq, Serialize)] +pub struct DeepSeekChatRequest { + pub model: String, + pub messages: Vec, + #[serde(skip_serializing_if = "Option::is_none")] + pub tools: Option>, + pub stream: bool, +} + +#[derive(Debug, Clone, PartialEq, Serialize)] +pub struct DeepSeekToolDefinition { + #[serde(rename = "type")] + pub tool_type: String, + pub function: DeepSeekFunctionDefinition, +} + +#[derive(Debug, Clone, PartialEq, Serialize)] +pub struct DeepSeekFunctionDefinition { + pub name: String, + pub description: String, + pub parameters: Value, +} + +#[derive(Debug, Deserialize)] +struct DeepSeekChatResponse { + choices: Vec, +} + +#[derive(Debug, Deserialize)] +struct DeepSeekChoice { + message: DeepSeekResponseMessage, +} + +#[derive(Debug, Deserialize)] +struct DeepSeekResponseMessage { + #[serde(default)] + tool_calls: Option>, +} + +#[derive(Debug, Deserialize)] +struct DeepSeekResponseToolCall { + id: String, + function: DeepSeekResponseFunctionCall, +} + +#[derive(Debug, Deserialize)] +struct DeepSeekResponseFunctionCall { + name: String, + arguments: String, +} diff --git a/src/llm/mod.rs b/src/llm/mod.rs new file mode 100644 index 0000000..31d33e0 --- /dev/null +++ b/src/llm/mod.rs @@ -0,0 +1,5 @@ +mod deepseek; +mod provider; + +pub use deepseek::{DeepSeekChatRequest, DeepSeekProvider}; +pub use provider::{ChatMessage, LlmError, LlmProvider, ToolDefinition, ToolFunctionCall}; diff --git a/src/llm/provider.rs b/src/llm/provider.rs new file mode 100644 index 0000000..b7e4dd5 --- /dev/null +++ b/src/llm/provider.rs @@ -0,0 +1,45 @@ +use serde::{Deserialize, Serialize}; +use serde_json::Value; +use thiserror::Error; + +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +pub struct ChatMessage { + pub role: String, + pub content: String, +} + +#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)] +pub struct ToolDefinition { + pub name: String, + pub description: String, + pub parameters: Value, +} + +#[derive(Debug, Clone, PartialEq)] +pub struct ToolFunctionCall { + pub id: String, + pub name: String, + pub arguments: Value, +} + +pub trait LlmProvider { + fn chat( + &self, + messages: &[ChatMessage], + tools: &[ToolDefinition], + ) -> Result, LlmError>; +} + +#[derive(Debug, Error)] +pub enum LlmError { + #[error(transparent)] + Config(#[from] crate::config::ConfigError), + #[error(transparent)] + Http(#[from] reqwest::Error), + #[error(transparent)] + Json(#[from] serde_json::Error), + #[error("llm returned no tool calls")] + NoToolCalls, + #[error("llm returned malformed tool arguments: {0}")] + InvalidToolArguments(String), +} diff --git a/tests/deepseek_provider_test.rs b/tests/deepseek_provider_test.rs new file mode 100644 index 0000000..c994dc6 --- /dev/null +++ b/tests/deepseek_provider_test.rs @@ -0,0 +1,67 @@ +use std::sync::{Mutex, OnceLock}; + +use serde_json::json; +use sgclaw::config::DeepSeekSettings; +use sgclaw::llm::{ChatMessage, DeepSeekProvider, ToolDefinition}; + +fn env_lock() -> &'static Mutex<()> { + static LOCK: OnceLock> = OnceLock::new(); + LOCK.get_or_init(|| Mutex::new(())) +} + +#[test] +fn deepseek_settings_load_defaults_from_env() { + let _guard = env_lock().lock().unwrap(); + std::env::set_var("DEEPSEEK_API_KEY", "test-key"); + std::env::remove_var("DEEPSEEK_BASE_URL"); + std::env::remove_var("DEEPSEEK_MODEL"); + + let settings = DeepSeekSettings::from_env().unwrap(); + + assert_eq!(settings.api_key, "test-key"); + assert_eq!(settings.base_url, "https://api.deepseek.com"); + assert_eq!(settings.model, "deepseek-chat"); +} + +#[test] +fn deepseek_request_shape_matches_openai_compatible_chat_format() { + let provider = DeepSeekProvider::new(DeepSeekSettings { + api_key: "test-key".to_string(), + base_url: "https://api.deepseek.com".to_string(), + model: "deepseek-chat".to_string(), + }); + let messages = vec![ + ChatMessage { + role: "system".to_string(), + content: "You are sgClaw.".to_string(), + }, + ChatMessage { + role: "user".to_string(), + content: "打开百度搜索天气".to_string(), + }, + ]; + let tools = vec![ToolDefinition { + name: "browser_action".to_string(), + description: "Execute browser actions".to_string(), + parameters: json!({ + "type": "object", + "properties": { + "action": { "type": "string" } + }, + "required": ["action"] + }), + }]; + + let request = provider.build_chat_request(&messages, &tools); + let serialized = serde_json::to_value(&request).unwrap(); + + assert_eq!(serialized["model"], "deepseek-chat"); + assert_eq!(serialized["stream"], false); + assert_eq!(serialized["messages"][0]["role"], "system"); + assert_eq!(serialized["messages"][1]["content"], "打开百度搜索天气"); + assert_eq!(serialized["tools"][0]["type"], "function"); + assert_eq!( + serialized["tools"][0]["function"]["name"], + "browser_action" + ); +}