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#pragma once
#include <string>
#include <map>
#include <functional>
#include <LibLsp/JsonRpc/message.h>
class Reader;


using  GenericRequestJsonHandler = std::function< std::unique_ptr<LspMessage>(Reader&) >;
using  GenericResponseJsonHandler = std::function< std::unique_ptr<LspMessage>(Reader&) >;
using  GenericNotificationJsonHandler = std::function< std::unique_ptr<LspMessage>(Reader&) >;

class MessageJsonHandler
{
public:
        std::map< std::string, GenericRequestJsonHandler > method2request;
        std::map< std::string,  GenericResponseJsonHandler > method2response;
        std::map< std::string, GenericNotificationJsonHandler > method2notification;


        const GenericRequestJsonHandler* GetRequestJsonHandler(const char* methodInfo) const
        {
                const auto findIt = method2request.find(methodInfo);
                return  findIt == method2request.end() ? nullptr : &findIt->second;
        }

        void SetRequestJsonHandler(const std::string& methodInfo, GenericRequestJsonHandler handler)
        {
                method2request[methodInfo] = handler;
        }

        const GenericResponseJsonHandler* GetResponseJsonHandler(const char* methodInfo) const
        {
                const auto findIt = method2response.find(methodInfo);
                return  findIt == method2response.end() ? nullptr : &findIt->second;
        }

        void SetResponseJsonHandler(const std::string& methodInfo,GenericResponseJsonHandler handler)
        {
                method2response[methodInfo] = handler;
        }

        const GenericNotificationJsonHandler* GetNotificationJsonHandler(const char* methodInfo) const
        {
                const auto findIt = method2notification.find(methodInfo);
                return  findIt == method2notification.end() ? nullptr : &findIt->second;
        }

        void SetNotificationJsonHandler(const std::string& methodInfo, GenericNotificationJsonHandler handler)
        {
                method2notification[methodInfo] = handler;
        }



        std::unique_ptr<LspMessage> parseResponseMessage(const std::string&, Reader&);
        std::unique_ptr<LspMessage> parseRequstMessage(const std::string&, Reader&);
        bool resovleResponseMessage(Reader&, std::pair<std::string, std::unique_ptr<LspMessage>>& result);
        std::unique_ptr<LspMessage> parseNotificationMessage(const std::string&, Reader&);
};