// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.

package org.wpilib.examples.xrpreference.commands;

import org.wpilib.command2.Command;
import org.wpilib.examples.xrpreference.subsystems.Drivetrain;

public class DriveTime extends Command {
  private final double duration;
  private final double velocity;
  private final Drivetrain drive;
  private long startTime;

  /**
   * Creates a new DriveTime. This command will drive your robot for a desired velocity and time.
   *
   * @param velocity The velocity which the robot will drive. Negative is in reverse.
   * @param time How much time to drive in seconds
   * @param drive The drivetrain subsystem on which this command will run
   */
  public DriveTime(double velocity, double time, Drivetrain drive) {
    this.velocity = velocity;
    duration = time * 1000;
    this.drive = drive;
    addRequirements(drive);
  }

  // Called when the command is initially scheduled.
  @Override
  public void initialize() {
    startTime = System.currentTimeMillis();
    drive.arcadeDrive(0, 0);
  }

  // Called every time the scheduler runs while the command is scheduled.
  @Override
  public void execute() {
    drive.arcadeDrive(velocity, 0);
  }

  // Called once the command ends or is interrupted.
  @Override
  public void end(boolean interrupted) {
    drive.arcadeDrive(0, 0);
  }

  // Returns true when the command should end.
  @Override
  public boolean isFinished() {
    return (System.currentTimeMillis() - startTime) >= duration;
  }
}
