From 791b3f354b378769bffe623b05f1305c91b77101 Mon Sep 17 00:00:00 2001
From: rtk0c <mail.tianyig@gmail.com>
Date: Fri, 3 Jun 2022 23:30:01 -0700
Subject: Changeset: 64 [WIP] Rename directories

---
 ProjectBrussel/Common/Uid.cpp | 58 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 ProjectBrussel/Common/Uid.cpp

(limited to 'ProjectBrussel/Common/Uid.cpp')

diff --git a/ProjectBrussel/Common/Uid.cpp b/ProjectBrussel/Common/Uid.cpp
new file mode 100644
index 0000000..1930cd8
--- /dev/null
+++ b/ProjectBrussel/Common/Uid.cpp
@@ -0,0 +1,58 @@
+#include "Uid.hpp"
+
+#include "RapidJsonHelper.hpp"
+
+#include <rapidjson/document.h>
+#include <cstring>
+#include <random>
+
+Uid Uid::Create() {
+	std::random_device rd;
+	std::mt19937_64 gen(rd());
+	std::uniform_int_distribution<uint64_t> dist(
+		std::numeric_limits<uint64_t>::min(),
+		std::numeric_limits<uint64_t>::max());
+
+	Uid uid;
+	uid.upper = dist(gen);
+	uid.lower = dist(gen);
+	return uid;
+}
+
+bool Uid::IsNull() const {
+	return upper == 0 && lower == 0;
+}
+
+void Uid::ReadString(std::string_view str) {
+	sscanf(str.data(), BRUSSEL_Uid_SCAN_STR, &upper, &lower);
+}
+
+std::string Uid::WriteString() {
+	char buf[256];
+	snprintf(buf, sizeof(buf), BRUSSEL_Uid_FORMAT_STR, upper, lower);
+	return std::string(buf);
+}
+
+void Uid::Read(const rapidjson::Value& value) {
+	assert(value.IsArray());
+	assert(value.Size() == 2);
+	auto& upper = value[0];
+	assert(upper.IsUint64());
+	auto& lower = value[1];
+	assert(lower.IsUint64());
+
+	this->upper = upper.GetUint64();
+	this->lower = lower.GetUint64();
+}
+
+void Uid::WriteInto(rapidjson::Value& value, rapidjson::Document& root) {
+	value.Reserve(2, root.GetAllocator());
+	value.PushBack((uint64_t)upper, root.GetAllocator());
+	value.PushBack((uint64_t)lower, root.GetAllocator());
+}
+
+rapidjson::Value Uid::Write(rapidjson::Document& root) {
+	rapidjson::Value result(rapidjson::kArrayType);
+	WriteInto(result, root);
+	return result;
+}
-- 
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