import java.io.IOException;
import java.sql.*;

public class DateBase {

	static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
	static final String DB_URL = "jdbc:mysql://localhost/addressbook?autoReconnect=true&useSSL=false";
	static final String USER = "root";
	static final String PASS = "333666666";

	public static void readFromDB(AddressBook AddressBook) {
		Connection conn = null;
		Statement stmt = null;

		try {
			Class.forName("com.mysql.jdbc.Driver");
			System.out.println("Connecting to database...");
			conn = DriverManager.getConnection(DB_URL, USER, PASS);

			System.out.println("Creating statement...");
			stmt = conn.createStatement();
			String sql;
			sql = "select first_name, last_name, age, gender, number_phone, address from person";
			ResultSet rs = stmt.executeQuery(sql);

			while (rs.next()) {
				String firstName = rs.getString("first_name");
				String lastName = rs.getString("last_name");
				String age = rs.getString("age");
				String gender = rs.getString("gender");
				String numberPhone = rs.getString("number_phone");
				String address = rs.getString("address");
				Person person = new Person(firstName, lastName, age, gender, numberPhone, address);
				AddressBook.add(person);
			}
			rs.close();
			stmt.close();
			conn.close();
		} catch (SQLException se) {
			se.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (stmt != null)
					stmt.close();
			} catch (SQLException se2) {
			}
			try {
				if (conn != null)
					conn.close();
			} catch (SQLException se) {
				se.printStackTrace();
			}
		}
		System.out.println("Goodbye!");

	}

	public static void cleanDB() {
		Connection conn = null;
		Statement stmt = null;

		try {
			Class.forName("com.mysql.jdbc.Driver");
			System.out.println("Connecting to database...");
			conn = DriverManager.getConnection(DB_URL, USER, PASS);

			System.out.println("Creating statement...");
			stmt = conn.createStatement();
			String sql1;
			sql1 = "truncate person";
			stmt.executeUpdate(sql1);

			stmt.close();
			conn.close();
		} catch (SQLException se) {
			se.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (stmt != null)
					stmt.close();
			} catch (SQLException se2) {
			}
			try {
				if (conn != null)
					conn.close();
			} catch (SQLException se) {
				se.printStackTrace();
			}
		}
		System.out.println("Goodbye!");

	}

	public static void saveToDB(AddressBook addressBook) {
		Connection conn = null;
		Statement stmt = null;
		try {
			Class.forName("com.mysql.jdbc.Driver");
			System.out.println("Connecting to database...");
			conn = DriverManager.getConnection(DB_URL, USER, PASS);
			System.out.println("Creating statement...");
			stmt = conn.createStatement();
			for (int i = 0; i < addressBook.size(); i++) {
				Person person = new Person();
				person = addressBook.get(i);
				String firstName = person.getFirstName();
				String lastName = person.getLastName();
				String age = person.getAge();
				String gender = person.getGender();
				String numberPhone = person.getNumberPhone();
				String address = person.getAddress();
				String sql2 = "insert into person (first_name, last_name, age, gender, number_phone, address) values ('"
						+ firstName + "', '" + lastName + "', '" + age + "', '" + gender + "', '" + numberPhone + "', '"
						+ address + "')";
				stmt.executeUpdate(sql2);
			}

			stmt.close();
			conn.close();
		} catch (SQLException se) {
			se.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (stmt != null)
					stmt.close();
			} catch (SQLException se2) {
			}
			try {
				if (conn != null)
					conn.close();
			} catch (SQLException se) {
				se.printStackTrace();
			}
		}
		System.out.println("Goodbye!");
	}

	/*
	 * public static void writeToDB(AddressBook addressBook) {
	 * cleanDB();
	 * saveToDB(addressBook); }
	 */

}