package fr.plil.sio.persistence.jdbc;

import org.junit.After;
import org.junit.Before;
import org.springframework.beans.factory.annotation.Autowired;

import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public abstract class AbstractServiceSupport {

    private static final Logger logger = LoggerFactory.getLogger(AbstractServiceSupport.class);
    
    private static final String create_table_group = "CREATE TABLE GROUP_T (GROUP_ID INT NOT NULL AUTO_INCREMENT, " +
            "NAME_C VARCHAR(50) UNIQUE NOT NULL, PRIMARY KEY(GROUP_ID))";

    private static final String create_table_right = "CREATE TABLE RIGHT_T (RIGHT_ID INT NOT NULL AUTO_INCREMENT, "+ 
            "NAME_R VARCHAR(50) NOT NULL, PRIMARY KEY(RIGHT_ID), PARENT INT, FOREIGN KEY(PARENT) REFERENCES RIGHT_T(RIGHT_ID))";
    
    private static final String create_table_user = "CREATE TABLE USER_T (USER_ID INT NOT NULL AUTO_INCREMENT, "+
            "NAME_U VARCHAR(50) UNIQUE NOT NULL, PRIMARY KEY(USER_ID), GROUP_U INT, FOREIGN KEY(GROUP_U) REFERENCES GROUP_T(GROUP_ID)) ";        
    
    private static final String create_table_rg = "CREATE TABLE GROUP_RIGHTS (G_ID INT NOT NULL, R_ID INT NOT NULL,"+
                  "PRIMARY KEY(G_ID,R_ID),"+
                  "FOREIGN KEY(G_ID) REFERENCES GROUP_T(GROUP_ID),"+
                  "FOREIGN KEY(R_ID) REFERENCES RIGHT_T(RIGHT_ID))";
    
    private static final String drop_table_group = "DROP TABLE GROUP_T";
    
    private static final String drop_table_right = "DROP TABLE RIGHT_T";
    
    private static final String drop_table_user = "DROP TABLE USER_T";
    
    private static final String drop_table_rg = "DROP TABLE GROUP_RIGHTS";

    @Autowired
    private DataSource dataSource;

    private Connection connection;

    private Statement stmt;

    @Before
    public void createTables() throws SQLException {
        logger.debug("createTables");
        openConnection();
        stmt.executeUpdate(create_table_group);
        stmt.executeUpdate(create_table_right);
        stmt.executeUpdate(create_table_user);
        stmt.executeUpdate(create_table_rg);
        closeConnection();
    }

    @After
    public void cleanupDatabase() throws SQLException {
        logger.debug("cleanupDatabase");        
        openConnection();
        stmt.executeUpdate(drop_table_group);
        stmt.executeUpdate(drop_table_right);
        stmt.executeUpdate(drop_table_user);
        stmt.executeUpdate(drop_table_rg);
        closeConnection();
    }

    private void closeConnection() throws SQLException {
        stmt.close();
        connection.close();
    }

    private void openConnection() throws SQLException {
        connection = dataSource.getConnection();
        stmt = connection.createStatement();
    }
}