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#pragma once

#include "data.hpp"
#include <iostream>

namespace saw {
namespace impl {
struct data_print_tab_helper {
	static void apply(std::ostream& o, uint64_t tabs){
		for(uint64_t i = 0u; i < tabs; ++i){
			o<<'\t';
		}
	}
};

template<typename Schema, typename Encode>
struct data_print_std_helper {
	static void apply(std::ostream& o, const data<Schema,Encode>& dat){
		// Blueprint
		(void)o;
		(void)dat;
	}
};

template<typename T, uint64_t N, typename Encode>
struct data_print_std_helper<schema::Primitive<T,N>, Encode> {
	static void apply(std::ostream& o, const data<schema::Primitive<T,N>,Encode>& dat, uint64_t tabs){
		(void) tabs;
		// Blueprint
		o<<dat.get();
	}
};

template<typename Encode>
struct data_print_std_helper<schema::String, Encode> {
	static void apply(std::ostream& o, const data<schema::String,Encode>& dat, uint64_t tabs){
		(void) tabs;
		// Blueprint
		auto size = dat.size();
		o<<"\"";
		for(saw::data<schema::UInt64> i{0u}; i < size; ++i){
			o<<dat.at(i);
		}
		o<<"\"";
	}
};
template<typename T, uint64_t N, typename Encode>
struct data_print_std_helper<schema::Array<T,N>, Encode> {
	static void apply(std::ostream& o, const data<schema::Array<T,N>,Encode>& dat, uint64_t tabs){
		(void) tabs;
		// Blueprint
		auto size = dat.size();
		o<<"\"";
		for(saw::data<schema::UInt64> i{0u}; i < size; ++i){
			o<<dat.at(i);
		}
		o<<"\"";
	}
};

template<typename... Members, typename Encode>
struct data_print_std_helper<schema::Struct<Members...>, Encode> {
	template<uint64_t i>
	static void apply(std::ostream& o, const data<schema::Struct<Members...>,Encode>& dat, uint64_t tabs){
		if constexpr (i < sizeof...(Members)){
			using Memb = parameter_pack_type<i,Members...>::type;

			data_print_tab_helper::apply(o,tabs);
			o<<"- \""<<Memb::KeyLiteral.view()<<"\" : ";
			data_print_std_helper<typename Memb::ValueType,Encode>::apply(o,dat.template get<Memb::KeyLiteral>(), tabs);
			o<<"\n";
			apply<i+1u>(o,dat,tabs);
		}
	}

	static void apply(std::ostream& o, const data<schema::Struct<Members...>,Encode>& dat, uint64_t tabs){
		data_print_tab_helper::apply(o,tabs);

		apply<0u>(o,dat,tabs+1u);
	}
};

}
}

namespace std {
template<typename Schema, typename Encode>
inline ostream& operator<<(ostream& o, const saw::data<Schema, Encode>& dat){

	saw::impl::data_print_std_helper<Schema,Encode>::apply(o, dat, 0u);

	return o;
}
}