#include "rapidjson/document.h"
#include "rapidjson/writer.h"
#include "rapidjson/stringbuffer.h"
#include <iostream>
#include <stdlib.h>

using namespace std;
using namespace rapidjson;

void prnBool(int value)
{
	if (value)
		printf("true\n");
	else
		printf("false\n");
}

void parseAbnormalJSON()
{
	Document d;
	d.Parse("");
	prnBool(d.IsNull());//true
	d.Parse("{");
	prnBool(d.IsNull());//true
	//d.Parse(NULL); crash
}

void parseJSONObject()
{
	const char* json = "{\"project\":\"rapidjson\",\"stars\":10}";
	Document d;
	d.Parse(json);
	prnBool(d.IsObject());//true

	//s = d["unknown"]; crash
	Value& s = d["stars"];
	s.SetInt(s.GetInt() + 1);

	StringBuffer buffer;
	Writer<StringBuffer> writer(buffer);
	d.Accept(writer);

	// Output {"project":"rapidjson","stars":11}
	cout << buffer.GetString() << endl;
}

void parseJSONArray()
{
	const char* json = "[2,3,5,7]";
	Document d;
	d.Parse(json);
	prnBool(d.IsArray());//true

	for (SizeType idx = 0; idx < d.Size(); ++idx)
		printf("arr[%d]=%d\n", idx, d[idx]);
}

void findMember()
{
	const char* json = "{\"project\":\"rapidjson\",\"stars\":10}";
	Document d;
	d.Parse(json);
	Value::ConstMemberIterator itr = d.FindMember("project");
	if (itr != d.MemberEnd())
		printf("%s\n", itr->value.GetString());
}

void createObjectAndArray()
{
	Document o;
	Document::AllocatorType &alloc = o.GetAllocator();
	o.SetObject();
	o.AddMember("name", "feinen", alloc);

	StringBuffer buffer;
	Writer<StringBuffer> writer(buffer);
	o.Accept(writer);
	cout << buffer.GetString() << endl;

	Document a;
	Document::AllocatorType &alloc2 = o.GetAllocator();
	a.SetArray();
	a.PushBack("red", alloc2);
	
	buffer.Clear();
	writer.Reset(buffer);
	a.Accept(writer);
	cout << buffer.GetString() << endl;
}

int main()
{
	parseAbnormalJSON();
	parseJSONObject();
	parseJSONArray();
	findMember();
	createObjectAndArray();

	getchar();
	return EXIT_SUCCESS;
}