#include "config.h"
#include "logger.h"
#include "toml.hpp"
#include <iostream>
#include <filesystem>

namespace humanus {

// 初始化静态成员
Config* Config::_instance = nullptr;
std::mutex Config::_mutex;

void Config::_load_initial_config() {
    try {
        auto config_path = _get_config_path();
        std::cout << "加载配置文件: " << config_path.string() << std::endl;
        
        const auto& data = toml::parse_file(config_path.string());

        // 检查工具配置是否存在
        if (!data.contains("llm") || !data["llm"].is_table()) {
            throw std::runtime_error("MCP配置文件中找不到llm配置: ");
        }
        
        const auto& llm_table = *data["llm"].as_table();

        LLMSettings llm_settings;

        if (llm_table.contains("model") && llm_table["model"].is_string()) {
            llm_settings.model = llm_table["model"].as_string()->get();
        } else {
            throw std::runtime_error("Invalid `model` configuration");
        }

        if (llm_table.contains("api_key") && llm_table["api_key"].is_string()) {
            llm_settings.api_key = llm_table["api_key"].as_string()->get();
        } else {
            throw std::runtime_error("Invalid `api_key` configuration");
        }

        if (llm_table.contains("base_url") && llm_table["base_url"].is_string()) {
            llm_settings.base_url = llm_table["base_url"].as_string()->get();
        } else {
            throw std::runtime_error("Invalid `base_url` configuration");
        }

        if (llm_table.contains("end_point") && llm_table["end_point"].is_string()) {
            llm_settings.end_point = llm_table["end_point"].as_string()->get();
        }
        
        if (llm_table.contains("max_tokens") && llm_table["max_tokens"].is_integer()) {
            llm_settings.max_tokens = llm_table["max_tokens"].as_integer()->get();
        }

        if (llm_table.contains("temperature") && llm_table["temperature"].is_floating_point()) {
            llm_settings.temperature = llm_table["temperature"].as_floating_point()->get();
        }

        _config.llm["default"] = llm_settings;
    } catch (const std::exception& e) {
        std::cerr << "加载配置文件失败: " << e.what() << std::endl;
        // 设置默认配置
        LLMSettings default_settings;
        default_settings.model = "gpt-3.5-turbo";
        default_settings.api_key = "sk-";
        default_settings.base_url = "https://api.openai.com";
        default_settings.end_point = "/v1/chat/completions";
        default_settings.max_tokens = 4096;
        default_settings.temperature = 1.0;
        
        _config.llm["default"] = default_settings;
    }
}

} // namespace humanus