#include "ProcedureManager.h"

ProcedureManager::ProcedureManager() {}

struct ProcedureCallHeader {
	uint64_t rd;
	int32_t method;
	uint32_t len;
};

struct ProcedureReturnHeader {
	uint64_t rd;
	uint32_t len;
};

void ProcedureManager::handleCall(FILE *in, FILE *out) const {
	ProcedureCallHeader header;
	auto ptr = reinterpret_cast<byte*>(&header);
	std::size_t sz = 0;
	while (sz < sizeof(header))
		sz += fread(ptr + sz, 1, sizeof(header) - sz, in);

	auto buf = new byte[header.len];
	sz = 0;
	while (sz < header.len)
		sz += fread(buf + sz, 1, header.len - sz, in);

	BinaryBuffer bb(header.len, buf);
	delete[] buf;
	if (procedures.count(header.method)) {
		auto res = procedures.at(header.method)(bb);
		ProcedureReturnHeader rh;
		rh.rd = header.rd;
		rh.len = header.len;
		fwrite(&rh, 1, sizeof(rh), out);
		res.writeTo(out);
	}
}