package it.cavallium.strangedb.server;

import com.sun.net.httpserver.HttpServer;
import it.cavallium.strangedb.server.http.ExistsHandler;
import it.cavallium.strangedb.server.http.GetHandler;
import it.cavallium.strangedb.server.http.SetHandler;
import it.cavallium.strangedb.server.http.SizeHandler;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.file.Path;
import java.nio.file.Paths;

public class Server {
	private final DatabaseSimple database;

	public Server(DatabaseSimple database) throws IOException {
		this.database = database;
		HttpServer server = HttpServer.create(new InetSocketAddress(8000), 0);
		server.createContext("/get", new GetHandler(this));
		server.createContext("/set", new SetHandler(this));
		server.createContext("/exists", new ExistsHandler(this));
		server.createContext("/size", new SizeHandler(this));
		server.setExecutor(null);
		server.start();
	}

	/**
	 * <p>Start the server</p>
	 * <code>java -jar server.jar &lt;database-directory&gt;</code>
	 * @param args
	 */
	public static void main(String[] args) throws IOException {
		if (args.length != 1) {
			System.err.println("Usage: java -jar server.jar <database-directory>");
		}
		Path databasePath = Paths.get(args[0]);
		DatabaseSimple database = new DatabaseSimple(databasePath.resolve("database.db"), databasePath.resolve("database.blocks.dat"), databasePath.resolve("database.references.dat"));
		new Server(database);
	}

	public boolean exists(CharSequence path) throws IOException {
		return database.exists(path);
	}

	public int size(CharSequence path) throws IOException {
		return database.size(path);
	}

	public String get(CharSequence path) throws IOException {
		return database.get(path);
	}

	public void set(CharSequence path, String value) throws IOException {
		database.set(path, value);
	}
}