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package database;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import models.Ability;
import models.Monster;
import models.MonsterViewModel;
import models.User;
public class Database {
private Connection conn;
static Database instance=null;
private Database() {
String connString="jdbc:mysql://localhost:3306/pokemon?user=root&password=";
try {
Class.forName("com.mysql.cj.jdbc.Driver");
conn=DriverManager.getConnection(connString);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static Database getInstance() {
if(instance==null)
instance=new Database();
return instance;
}
public boolean addUser(User user) {
boolean res=false;
String sql="SELECT * FROM user where username=? ";
PreparedStatement ps;
try {
ps=conn.prepareStatement(sql);
ps.setString(1, user.getUsername());
ResultSet result=ps.executeQuery();
if(result.next()) {
return res;
}
sql="INSERT INTO user(username,password,admin) values(?,?,?)";
ps=conn.prepareStatement(sql);
ps.setString(1, user.getUsername());
String hashedPassword=BcryptHelper.hashPasword(user.getPassword());
ps.setString(2, hashedPassword);
ps.setBoolean(3, user.isAdmin());
if(ps.executeUpdate()==1) {
res=true;
}
} catch (SQLException e) {
e.printStackTrace();
}
return res;
}
public User login(User user) {
User tempUser=null;
String sql="SELECT * FROM user where username=?";
try {
PreparedStatement pre=conn.prepareStatement(sql);
pre.setString(1, user.getUsername());
ResultSet res=pre.executeQuery();
if(res.next()) {
String hashedPw=res.getString("password");
if(BcryptHelper.checkPassword(user.password, hashedPw))
{
tempUser=new User();
tempUser.setId(res.getInt("id"));
tempUser.setAdmin(res.getBoolean("admin"));
tempUser.setUsername(user.getUsername());
}
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return tempUser;
}
public long addMonster(Monster monster) {
long tempId=0;
String sql=null;
PreparedStatement ps;
try {
sql="INSERT INTO monster(name,description,hp,base64Image) values(?,?,?,?)";
ps=conn.prepareStatement(sql,Statement.RETURN_GENERATED_KEYS);
ps.setString(1, monster.getName());
ps.setString(2, monster.getDescription());
ps.setInt(3, monster.getHp());
ps.setString(4, monster.getBase64Image());
if(ps.executeUpdate()==1) {
try (ResultSet generatedKeys = ps.getGeneratedKeys()) {
if (generatedKeys.next()) {
tempId=generatedKeys.getLong(1);
}
else {
throw new SQLException("Creating user failed, no ID obtained.");
}
}
}
} catch (SQLException e) {
e.printStackTrace();
}
return tempId;
}
public boolean addAbility(Ability ability) {
boolean result=false;
String sql=null;
PreparedStatement ps;
try {
sql="INSERT INTO ability(monsterId,name,description,type,power) values(?,?,?,?,?)";
ps=conn.prepareStatement(sql,Statement.RETURN_GENERATED_KEYS);
ps.setLong(1, ability.getMonsterId());
ps.setString(2, ability.getName());
ps.setString(3, ability.getDescription());
ps.setInt(4, ability.getType().ordinal());
ps.setInt(5, ability.getPower());
if(ps.executeUpdate()==1) {
result=true;
}
} catch (SQLException e) {
e.printStackTrace();
}
return result;
}
public ArrayList<Monster> getMonsters(){
ArrayList<Monster> monsters=new ArrayList<Monster>();
String sql="SELECT * FROM monster";
try {
Statement statement = conn.createStatement();
ResultSet res=statement.executeQuery(sql);
while(res.next()) {
Monster m=new Monster();
m.setId(res.getLong("id"));
m.setName(res.getString("name"));
m.setDescription(res.getString("description"));
m.setHp(res.getInt("hp"));
m.setBase64Image(res.getString("base64Image"));
monsters.add(m);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return monsters;
}
}
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