// Copyright (c) 2011 Bryan Schumaker.
#include <print.h>
#include <prefs.h>
#include <fs.h>

#include <map>
#include <fstream>
#include <stdlib.h>
using namespace std;

static map<string, int> preferences;

static void save(ofstream &stream, void *data)
{
	map<string, int>::iterator it;
	println("Saving preferences!");

	for (it = preferences.begin(); it != preferences.end(); it++) {
		stream << it->first  << endl;
		stream << it->second << endl;
	}
}

static void load(ifstream &stream)
{
	string key, value;
	int val;
	println("Loading preferences!");

	while (stream.good()) {
		getline(stream, key);
		if (!stream.good())
			break;
		getline(stream, value);
		if (!stream.good())
			break;
		val = atoi(value.c_str());
		println(key + " = %d", val);
		preferences[key] = val;
	}
}

static void set_preference(const string &key, int p)
{
	preferences[key] = p;
	libsaria::app::save("prefs", save, NULL);
}

static bool key_exists(const string &key)
{
	map<string, int>::iterator it;
	it = preferences.find(key);
	return it != preferences.end();
}

namespace libsaria
{
	void prefs::init()
	{
		libsaria::app::read_now("prefs", load);
	}

	int prefs::get(const string &key)
	{
		map<string, int>::iterator it;
		it = preferences.find(key);
		if (it == preferences.end())
			return 0;
		return it->second;
	}

	void prefs::set(const string &key, int value)
	{
		if (get(key) != value)
			set_preference(key, value);
	}

	int prefs::init(const string &key, int value)
	{
		if (!key_exists(key)) {
			set_preference(key, value);
			return value;
		}
		return get(key);
	}

}; /* Namespace: libsaria */