/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2013, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.classic.db;

import static org.junit.Assert.assertNotNull;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;

import org.h2.Driver;

import ch.qos.logback.core.testUtil.RandomUtil;

public class DBAppenderH2TestFixture  {

  public enum H2Mode {
    MEM, FILE, NET;
  }
  
  public static final String H2_DRIVER_CLASS = "org.h2.Driver";
  String url = null;
  String user = "sa";
  String password = "";

  // boolean isNetwork = true;
  H2Mode mode = H2Mode.MEM;

  int diff = RandomUtil.getPositiveInt();
  
  Connection connection;
  
  public void setUp() throws SQLException {

    switch (mode) {
    case NET:
      url = "jdbc:h2:tcp://localhost:4808/test";
      break;
    case MEM:
      url = "jdbc:h2:mem:test"+diff;
      break;
    case FILE:
      url = "jdbc:hsqldb:file:test;sql.enforce_strict_size=true";
      break;

    }
    connection = newConnection();
    createTables();
  }

  public void tearDown() throws SQLException {
    dropTables();
    connection.close();
  }

  Connection newConnection() throws SQLException {
    System.out.println("url="+url);
    org.h2.Driver driver = Driver.load();
    Properties props = new Properties();
    props.setProperty("user", user);
    props.setProperty("password", password);
    return driver.connect(url, props);
  }

  private void createTables() throws SQLException {
    assertNotNull(connection);
    StringBuilder buf = new StringBuilder();
    buf.append("CREATE TABLE LOGGING_EVENT (");
    buf.append("TIMESTMP BIGINT NOT NULL,");
    buf.append("FORMATTED_MESSAGE LONGVARCHAR NOT NULL,");
    buf.append("LOGGER_NAME VARCHAR(256) NOT NULL,");
    buf.append("LEVEL_STRING VARCHAR(256) NOT NULL,");
    buf.append("THREAD_NAME VARCHAR(256),");
    buf.append("REFERENCE_FLAG SMALLINT,");
    buf.append("ARG0 VARCHAR(256),");
    buf.append("ARG1 VARCHAR(256),");
    buf.append("ARG2 VARCHAR(256),");
    buf.append("ARG3 VARCHAR(256),");
    buf.append("CALLER_FILENAME VARCHAR(256), ");
    buf.append("CALLER_CLASS VARCHAR(256), ");
    buf.append("CALLER_METHOD VARCHAR(256), ");
    buf.append("CALLER_LINE CHAR(4), ");
    buf.append("EVENT_ID IDENTITY NOT NULL);");
    executeQuery(connection, buf.toString());

    buf = new StringBuilder();
    buf.append("CREATE TABLE LOGGING_EVENT_PROPERTY (");
    buf.append("EVENT_ID BIGINT NOT NULL,");
    buf.append("MAPPED_KEY  VARCHAR(254) NOT NULL,");
    buf.append("MAPPED_VALUE LONGVARCHAR,");
    buf.append("PRIMARY KEY(EVENT_ID, MAPPED_KEY),");
    buf.append("FOREIGN KEY (EVENT_ID) REFERENCES LOGGING_EVENT(EVENT_ID));");
    executeQuery(connection, buf.toString());

    buf = new StringBuilder();
    buf.append("CREATE TABLE LOGGING_EVENT_EXCEPTION (");
    buf.append("EVENT_ID BIGINT NOT NULL,");
    buf.append("I SMALLINT NOT NULL,");
    buf.append("TRACE_LINE VARCHAR(256) NOT NULL,");
    buf.append("PRIMARY KEY(EVENT_ID, I),");
    buf.append("FOREIGN KEY (EVENT_ID) REFERENCES LOGGING_EVENT(EVENT_ID));");
    executeQuery(connection, buf.toString());
  }

  private  void dropTables() throws SQLException {
    StringBuilder buf = new StringBuilder();
    buf.append("DROP TABLE LOGGING_EVENT_EXCEPTION IF EXISTS;");
    executeQuery(connection, buf.toString());

    buf = new StringBuilder();
    buf.append("DROP TABLE LOGGING_EVENT_PROPERTY IF EXISTS;");
    executeQuery(connection, buf.toString());

    buf = new StringBuilder();
    buf.append("DROP TABLE LOGGING_EVENT IF EXISTS;");
    executeQuery(connection, buf.toString());
  }

  private  void executeQuery(Connection conn, String expression) throws SQLException {
    Statement st = null;
    st = conn.createStatement();
    int i = st.executeUpdate(expression);
    if (i == -1) {
      throw new IllegalStateException("db error : " + expression);
    }
    st.close();
  }


}
