package hhn.temp.project;

import hhn.temp.project.provider.DatabaseManager;
import hhn.temp.project.provider.SimpleDatabaseManager;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;

public class DatabaseGoodCasesTest {

  private DatabaseManager<Task> databaseManager;

  @BeforeEach
  public void setup() throws SQLException, IOException {
    databaseManager = new SimpleDatabaseManager<>();
    databaseManager.connect();
    databaseManager.clearDatabase();
  }

  @Test
  @DisplayName("Assert that the TestClass could be inserted into the database")
  public void assertGetTestClass() throws SQLException {

    databaseManager.connect();

    Task task = new Task(1, 1, "hi", "hi");

    databaseManager.saveObject(task);

    Task taskNew = databaseManager.getObject(1);

    assertEquals(task.getTaskId(), taskNew.getTaskId());
    assertEquals(task.getName(), taskNew.getName());
    assertEquals(task.getDescription(), taskNew.getDescription());
    assertEquals(task.getWorkerId(), taskNew.getWorkerId());
    assertEquals(task.getTaskState(), taskNew.getTaskState());

    databaseManager.close();
  }

  @Test
  @DisplayName("Assert that an inserted and deleted task is not there anymore")
  public void assertDeleteTest() throws SQLException {

    databaseManager.connect();

    Task task = new Task(9, 1, "hi", "hi");

    databaseManager.saveObject(task);

    databaseManager.deleteObject(9);

    databaseManager.getObject(9);

    databaseManager.close();
  }

  @Test
  @DisplayName("Assert that a simple Task could be inserted into the database")
  public void assertInsertTask() throws SQLException {

    Task testTask = new Task(1, 1, "Hello World", "Description");

    databaseManager.connect();
    databaseManager.saveObject(testTask);
    databaseManager.close();
  }

  @Test
  @DisplayName("Assert that multiple Tasks could be inserted into the database")
  public void assertInsertMultipleTasks() throws SQLException {

    Task testTaskZero = new Task(1, 1, "Hello", "Description");
    Task testTaskOne = new Task(2, 2, "World", "Description");
    Task testTaskTwo = new Task(3, 3, "Hello World", "Description");

    Collection<Task> tasks = new ArrayList<>();
    tasks.add(testTaskZero);
    tasks.add(testTaskOne);
    tasks.add(testTaskTwo);

    databaseManager.connect();
    databaseManager.saveObjects(tasks);
    databaseManager.close();
  }

  @Test
  @DisplayName("Assert insert object and update it")
  public void assertInsertUpdateTask() throws SQLException {

    int taskId = 1;

    Task testTask = new Task(taskId, 1, "Hello World", "Description");
    Task newTask = new Task(taskId, 1, "No World", "Description");

    databaseManager.connect();
    databaseManager.saveObject(testTask);
    newTask = databaseManager.updateObject(testTask.getTaskId(), newTask);

    assertNotNull(testTask);

    assertNotEquals(testTask.getDescription(), newTask.getDescription());
    assertEquals(testTask.getTaskId(), newTask.getTaskId());

    databaseManager.close();
  }
}