package de.stuckdexter.sophiadb;

import com.sun.deploy.util.StringUtils;
import de.stuckdexter.sophiadb.exceptions.*;

import java.io.*;
import java.net.InetAddress;
import java.net.Socket;

public class SophiaDbConnection{

    private String username;
    private String password;
    private String address;

    public SophiaDbConnection(String username, String password, String address){
        this.username = username;
        this.password = password;
        this.address = address;
    }

    private String request(String message){
        Socket sock = null;
        try {
            sock = new Socket(InetAddress.getByName(address), 3000);
        } catch (IOException e) {
            e.printStackTrace();
        }
        try {
            PrintWriter printWriter = null;
            if (sock != null) {
                printWriter = new PrintWriter(new OutputStreamWriter(sock.getOutputStream()));
                printWriter.print(message);
                printWriter.flush();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        String nachricht = "";
        BufferedReader bufferedReader =
                null;
        try {
            bufferedReader = new BufferedReader(
                    new InputStreamReader(
                            sock.getInputStream()));
            char[] buffer = new char[1024];
            int anzahlZeichen = bufferedReader.read(buffer, 0, 1024);
            nachricht = new String(buffer, 0, anzahlZeichen);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return nachricht;
    }

    public String[] get(String table, String row) throws NotExistException, AlreadyExistException, SynatxNotValidException, CmdNotExistException, TableNotExistException, InvalidLoginException, NoPermissionException{
        String result = request("{" + username + "," + password + "}" + table + ";get;" + row);

        switch (result){
            case "error1":
                throw new NotExistException();
            case "error2":
                throw new AlreadyExistException();
            case "error3":
                throw new SynatxNotValidException();
            case "error4":
                throw new CmdNotExistException();
            case "error5":
                throw new TableNotExistException();
            case "error6":
                throw new InvalidLoginException();
            case "error7":
                throw new NoPermissionException();
                default:
                    result = result.replace("'", "");
                    result = result.replace("[", "");
                    result = result.replace("]", "");

                    return result.split(",");
        }
    }

    public String[] getAll(String table, String row) throws NotExistException, AlreadyExistException, SynatxNotValidException, CmdNotExistException, TableNotExistException, InvalidLoginException, NoPermissionException{
        String result = request("{" + username + "," + password + "}" + table + ";getall");

        switch (result){
            case "error1":
                throw new NotExistException();
            case "error2":
                throw new AlreadyExistException();
            case "error3":
                throw new SynatxNotValidException();
            case "error4":
                throw new CmdNotExistException();
            case "error5":
                throw new TableNotExistException();
            case "error6":
                throw new InvalidLoginException();
            case "error7":
                throw new NoPermissionException();
            default:
                result = result.replace("'", "");
                result = result.replace("[", "");
                result = result.replace("]", "");

                return result.split(",");
        }
    }

    public boolean set(String table, String row, String[] data) throws NotExistException, AlreadyExistException, SynatxNotValidException, CmdNotExistException, TableNotExistException, InvalidLoginException, NoPermissionException{
        String dat = "[" + String.join(",", data) + "]";
        String result = request("{" + username + "," + password + "}" + table + ";set;" + row + ";" + dat);

        switch (result){
            case "error1":
                throw new NotExistException();
            case "error2":
                throw new AlreadyExistException();
            case "error3":
                throw new SynatxNotValidException();
            case "error4":
                throw new CmdNotExistException();
            case "error5":
                throw new TableNotExistException();
            case "error6":
                throw new InvalidLoginException();
            case "error7":
                throw new NoPermissionException();
            case "OK":
                return true;
        }
        return false;
    }

    public boolean add(String table, String row, String[] data) throws NotExistException, AlreadyExistException, SynatxNotValidException, CmdNotExistException, TableNotExistException, InvalidLoginException, NoPermissionException{
        String dat = "[" + String.join(",", data) + "]";
        String result = request("{" + username + "," + password + "}" + table + ";add;" + row + ";" + dat);

        switch (result){
            case "error1":
                throw new NotExistException();
            case "error2":
                throw new AlreadyExistException();
            case "error3":
                throw new SynatxNotValidException();
            case "error4":
                throw new CmdNotExistException();
            case "error5":
                throw new TableNotExistException();
            case "error6":
                throw new InvalidLoginException();
            case "error7":
                throw new NoPermissionException();
            case "OK":
                return true;
        }
        return false;
    }
}