using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using TMPro;

public class PlayerTargeting : MonoBehaviour {
    // Projectile Stuff
    private float ballForce;
    private float finalForce;
    public float forceMultiplier = 1.0f;
    public Transform ballSpawn;
    public Rigidbody ball;
    GameObject prefab;
    public GameObject discoBall;

    // Raycast Stuff


    // Targeting Stuff for UI Crosshair
    public GameObject cursor; //crosshair
    public Canvas canvas; //parent canvas for crosshair
    float pixelX; //possible deprecated
    float pixelY;
    Vector2 cursorPos;

    public float posX;
    public float posY;


    // UI Stuff
    public TextMeshProUGUI scouter;
    private bool isDown;
    private bool charging = true;
    private bool draining = false;
    // Joystick
    private Vector3 rightJoystickInput;
    public float cursorMoveSpeed = 150f;
    public bool flipY = false;
    public bool flipX = false;



    // Use this for initialization
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        // RightJoyStick - Move UI Crosshair

        rightJoystickInput = RightJoystick.Instance.GetInputDirection();

        float xMovementRightJoystick = rightJoystickInput.x; // The horizontal movement from joystick 02
        float yMovementRightJoystick = rightJoystickInput.y; // The vertical movement from joystick 02

        float inputX = xMovementRightJoystick * (flipX ? -1 : 1);
        float inputY = yMovementRightJoystick * (flipY ? -1 : 1);

        float deltaX = inputX * cursorMoveSpeed;
        float deltaY = inputY * cursorMoveSpeed;

        cursorPos.x += deltaX * Time.deltaTime;
        cursorPos.y += deltaY * Time.deltaTime;

        if( cursorPos.x < 0 ) cursorPos.x = 0;
        if( cursorPos.x > Screen.width ) cursorPos.x = Screen.width;

        if( cursorPos.y < 0 ) cursorPos.y = 0;
        if( cursorPos.y > Screen.height ) cursorPos.y = Screen.height;

        cursor.transform.position = cursorPos;


        // Raycast Stuff
        Ray ray = Camera.main.ScreenPointToRay( cursorPos );
        RaycastHit hit;
        Debug.DrawRay(ray.origin, ray.direction * 100, Color.yellow);

        if (Physics.Raycast(transform.position, -Vector3.up, out hit))
        {
            print("Found an object - distance: " + hit.distance);
        }



        // Firing Mechanism - Power Calculations

        if (FireButton.Instance.isDown)
        {
            if (charging)
            {
                ballForce += 1f;
                if (ballForce >= 100f)
                {
                    ballForce = 100f;
                    charging = false;
                    draining = true;
                }
            }
            if (draining)
            {
                ballForce -= 0.7f;
                if (ballForce <= 0f)
                {
                    ballForce = 0f;
                    draining = false;
                    charging = true;
                }
            }

            // Debugging ballForce
            print(ballForce);

            // Need to change this to a graphical power bar
            int powerlvl = (int)ballForce;
            scouter.text = "Power: " + powerlvl.ToString();
        }
        if (FireButton.Instance.isDown == false)
        {
            if (ballForce > 0f)
            {
                if (ballForce >= 10f)
                {
                    finalForce = 30000f;
                }
                if (ballForce <= 11f && ballForce >= 20f)
                {
                    finalForce = 35000f;
                }
                if (ballForce <= 21f && ballForce >= 30f)
                {
                    finalForce = 40000f;
                }
                if (ballForce <= 31f && ballForce >= 40f)
                {
                    finalForce = 50000f;
                }
                if (ballForce <= 41f && ballForce >= 50f)
                {
                    finalForce = 60000f;
                }
                if (ballForce <= 51f && ballForce >= 60f)
                {
                    finalForce = 70000f;
                }
                if (ballForce <= 61f && ballForce >= 70f)
                {
                    finalForce = 80000f;
                }
                if (ballForce <= 71f && ballForce >= 80f)
                {
                    finalForce = 90000f;
                }
                if (ballForce <= 81f && ballForce >= 90f)
                {
                    finalForce = 100000f;
                }
                if (ballForce <= 91f && ballForce >= 95f)
                {
                    finalForce = 150000f;
                }
                if (ballForce <= 96f && ballForce >= 97f)
                {
                    finalForce = 200000f;
                }
                if (ballForce <= 98f && ballForce >= 99f)
                {
                    finalForce = 300000f;
                }
                if (ballForce == 100f)
                {
                    finalForce = 400000f;
                }

                // Launch Ball
                Rigidbody ballRigidbody;
                // Ball Spawns at Camera presently.
                ballRigidbody = Instantiate(ball, ballSpawn.position, ballSpawn.rotation) as Rigidbody;
                ballRigidbody.AddForce(ray.direction * finalForce * forceMultiplier);
                // Actually getting the ball to align to face raytrace direction to fire on target.
                ballForce = 0f;
            }

        }
    }
}