package frc4388.robot.subsystems.intake;

import static edu.wpi.first.units.Units.Amps;
import static edu.wpi.first.units.Units.Rotations;
import static edu.wpi.first.units.Units.RotationsPerSecond;

import java.util.function.Supplier;

import org.littletonrobotics.junction.Logger;

import com.ctre.phoenix6.Utils;

import edu.wpi.first.math.geometry.Pose2d;
import edu.wpi.first.wpilibj2.command.SubsystemBase;

public class Intake extends SubsystemBase {
    public IntakeIO io;
    IntakeStateAutoLogged state = new IntakeStateAutoLogged();

    Supplier<Pose2d> m_swervePoseSupplier;

    public Intake(
        IntakeIO io
        // Supplier<Pose2d> swervePoseSupplier
    ) {
        this.io = io;
        // this.m_swervePoseSupplier = swervePoseSupplier;
    }

    public enum IntakeMode {
        Extended,
        Retracted,
        Extending,
        Retracting,
        Idle,
        Bouncing
    }

    private IntakeMode mode = IntakeMode.Idle;

    public void setMode(IntakeMode mode) {
        this.mode = mode;

        switch (mode) {
            case Bouncing:
                // When bounce is enabled: set the bounce timer
                this.state.currentBounceTime = Utils.getSystemTimeSeconds() + IntakeConstants.INTAKE_BOUNCE_HALF_PERIOD.get();
                break;
            default:
                break;
        }
    }

    public IntakeMode getMode() {
        return mode;
    }

    public void rollerStop(){
        io.setRollerOutput(state, 0);
    }

    public double getRollerTarget() {
        return state.rollerTargetOutput;
    }

    public double getRollerSpeed() {
        return state.rollerOutput;
    }

    // public enum FieldZone {
    //     // The robot should aim at the hub
    //     InShootZone,
    //     // The robot should aim towards the wall
    //     AimAtWall,
        
    // }

    // // Calculate what should be done based off of the position of the robot
    // // TODO: Implement field zones
    // public FieldZone getTarget(Pose2d position) {
    //     return FieldZone.InShootZone;
    // }

    @Override
    public void periodic() {
        // FaultReporter.register(this); // TODO Implement fault reporter
        // System.out.println(m_armLimitSwitch.get());


        Logger.processInputs("Intake", state);
        Logger.recordOutput("Intake/IntakeState", this.mode);

        io.updateInputs(state);

        // getCurrentTime

        switch (mode) {
            case Extended:
            //     io.setArmAngle(state, Rotations.of(IntakeConstants.ARM_LIMIT_EXTENDED.get()));
            //     io.setRollerOutput(state, IntakeConstants.ROLLER_PERCENT_OUTPUT.get());
                break;
            case Retracted:
            //     io.setArmAngle(state, Rotations.of(IntakeConstants.ARM_LIMIT_RETRACTED.get()));
            //     io.setRollerOutput(state, 0);
                break;
            case Extending:
                io.armOutput(IntakeConstants.ARM_EXTEND_PERCENT_OUTPUT.get());
                io.setRollerOutput(state, IntakeConstants.ROLLER_PERCENT_OUTPUT.get());
                break;
            case Retracting:
                io.armOutput(IntakeConstants.ARM_RETRACT_PERCENT_OUTPUT.get());
                io.setRollerOutput(state, IntakeConstants.ROLLER_RETRACT_PERCENT_OUTPUT.get());
                break;
            case Bouncing:
                io.setRollerOutput(state, 0);

                if(
                    state.armMotorCurrent.in(Amps) < IntakeConstants.INTAKE_BOUNCE_CURRENT_LIMIT.get() &&
                    state.armMotorVelocity.in(RotationsPerSecond) < IntakeConstants.INTAKE_BOUNCE_VELOCITY_LIMIT.get()
                ) {
                    this.state.currentBounceTime = Utils.getSystemTimeSeconds() + IntakeConstants.INTAKE_BOUNCE_HALF_PERIOD.get();
                }

                // Get the time delta from the last bounce time update
                double currentTime = Utils.getSystemTimeSeconds() - state.currentBounceTime;
                // Get the percentage through the bounce period (0 output means one half period has passed)
                double percentOutput = (currentTime / IntakeConstants.INTAKE_BOUNCE_HALF_PERIOD.get()) * IntakeConstants.INTAKE_BOUNCE_OUTPUT.get();
                // Clamp the output of the motor to some value
                percentOutput = Math.max(Math.min(percentOutput, IntakeConstants.INTAKE_BOUNCE_MAX_OUTPUT.get()), -IntakeConstants.INTAKE_BOUNCE_MAX_OUTPUT.get());

                io.armOutput(percentOutput);
                break;
            case Idle:
                io.armOutput(0);
                // io.setArmAngle(state, Rotations.of(IntakeConstants.ARM_LIMIT_RETRACTED.get()));
                // io.setRollerOutput(state, 0);
                break;
        }
        // if (state.retractedLimit){
        //     this.mode = IntakeMode.Retracted;
        // }

    }
}