add r1 robot project

r1/include/r1_voice/llm.hh

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+namespace r1_voice {
+
+struct ChatMessage {
+    std::string role;
+    std::string content;
+};
+
+struct LlmConfig {
+    std::string url =
+        "http://127.0.0.1:8080/v1/chat/completions";
+
+    std::string model = "local";
+
+    float temperature = 0.7f;
+
+    int max_tokens = 256;
+
+    std::string system_prompt =
+        "You are R1, a humanoid robot conversational assistant. "
+        "Talk naturally with the person in front of you. "
+        "Keep answers reasonably short because they will be spoken aloud. "
+        "Answer in the same language as the user. "
+        "Do not use markdown unless necessary.";
+};
+
+class LLM {
+public:
+    explicit LLM(LlmConfig config);
+
+    std::string chat(
+        const std::string& user
+    );
+
+private:
+    LlmConfig config_;
+
+    std::vector<ChatMessage> history_;
+
+    std::string escapeJson(
+        const std::string& text
+    ) const;
+
+    std::string parseContent(
+        const std::string& json
+    ) const;
+
+    std::string httpPost(
+        const std::string& body
+    ) const;
+};
+
+} // namespace r1_voice