server_base.h

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// SPDX-License-Identifier: Apache-2.0
#pragma once
 
#include <entropic/core/directives.h>
#include <entropic/mcp/tool_base.h>
#include <entropic/mcp/tool_registry.h>
 
#include <string>
#include <vector>
 
namespace entropic {
 
struct ServerResponse {
    std::string result;                    
    std::vector<Directive> directives;     
};
 
class MCPServerBase {
public:
    virtual ~MCPServerBase() = default;
 
    explicit MCPServerBase(std::string name);
 
    const std::string& name() const;
 
    void register_tool(ToolBase* tool);
 
    std::string list_tools() const;
 
    std::string execute(const std::string& tool_name,
                        const std::string& raw_args_json);
 
    virtual std::string get_permission_pattern(
        const std::string& tool_name,
        const std::string& args_json) const;
 
    virtual bool skip_duplicate_check(
        const std::string& tool_name) const;
 
    virtual bool configure(const std::string& config_json);
 
    virtual bool set_working_dir(const std::string& path);
 
    const ToolRegistry& registry() const { return registry_; }
 
protected:
    std::string name_;         
    ToolRegistry registry_;    
 
private:
    static std::string serialize_response(const ServerResponse& response);
 
    static void inject_anchor_if_needed(
        const ToolBase& tool,
        const std::string& args_json,
        ServerResponse& response);
 
    std::string normalize_args(
        const std::string& tool_name,
        const std::string& raw) const;
};
 
} // namespace entropic