#pragma once
#include "nlohmann/json.hpp"
#include <iostream>
#include <algorithm>
#include <cmath>
#include <functional>
#include <string>
#include <vector>
namespace kobaltmeer {
using json=nlohmann::json;
struct Point { int x,y; bool operator==(const Point& b)const{return x==b.x&&y==b.y;} };
inline int distance(Point a,Point b,int size){int x=std::abs(a.x-b.x),y=std::abs(a.y-b.y);return std::min(x,size-x)+std::min(y,size-y);}
inline Point destination(Point p,char action,int size){if(action=='N')p.y--;if(action=='S')p.y++;if(action=='E')p.x++;if(action=='W')p.x--;return {(p.x+size)%size,(p.y+size)%size};}
inline Point position(const json& item){return {item.at("x").get<int>(),item.at("y").get<int>()};}
inline json orders(){return json{{"type","orders"},{"ships",json::object()},{"spawn",false}};}
inline void explain(json& out,int ship,Point target,const std::string& reason){out["debug"].push_back({{"ship",ship},{"target",{target.x,target.y}},{"reason",reason}});}
template<class Policy> int run(const std::string& name,Policy policy){
    try {std::string line;if(!std::getline(std::cin,line))return 1;
        auto init=json::parse(line);if(init.value("type","")!="init"||init.value("protocol","")!="kobaltmeer-bot-v1")return 2;
        const auto seed=init.at("seed").get<unsigned>();
        std::cout<<json{{"type","ready"},{"name",name}}.dump()<<std::endl;
        while(std::getline(std::cin,line)){auto request=json::parse(line);if(request.value("type","")=="close")break;
            auto out=policy(request,seed);out["type"]="orders";std::cout<<out.dump()<<std::endl;}
        return 0;
    }catch(const std::exception& error){std::cerr<<error.what()<<std::endl;return 1;}
}
}