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

public class PinSetter : MonoBehaviour {

    public Text standingDisplay;
    public bool ballLeftBox = false;
    public GameObject pinSet;

    private int lastStandingCount = -1;
    private int lastSettledCount = 10;
    private float lastChangeTime;

    private Ball ball;
    private Animator animator;

    ActionMaster actionMaster = new ActionMaster();

    // Use this for initialization
    void Start () {
        ball = GameObject.FindObjectOfType<Ball>();
        animator = GetComponent<Animator>();
    }

    // Update is called once per frame
    void Update()
    {
        standingDisplay.text = CountStanding().ToString();

        if (ballLeftBox) {
            UpdateStandCountAndSettle();
        }
    }

    public void RaisePins()
    {
                foreach (Pin pin in GameObject.FindObjectsOfType<Pin>())
        {
                pin.Raise();
        }
    }

    public void LowerPins()
    {
        foreach (Pin pin in GameObject.FindObjectsOfType<Pin>())
        {
            pin.Lower();

        }
    }

    public void RenewPins()
    {
               Instantiate(pinSet, new Vector3(0, 0, 1829), Quaternion.identity);
    }

    void UpdateStandCountAndSettle()
    {
        int currentStanding = CountStanding();

        // call PinsHaveSettled () when they have
        if (currentStanding != lastStandingCount)
        {
            lastChangeTime = Time.time;
            lastStandingCount = currentStanding;
            return;
        }
        float settleTime = 5f; //how long to wait to consider pins settled
        if ((Time.time - lastChangeTime) > settleTime) // if last change > 3s* ago
        {
            PinsHaveSettled();
        }
    }

    void PinsHaveSettled() {

        int pinFall = lastSettledCount - CountStanding();
        lastSettledCount = CountStanding();

        ActionMaster.Action action = actionMaster.Bowl(pinFall);
        print("pinFall: " + pinFall + " " + actionMaster.Bowl(pinFall));

        if (action == ActionMaster.Action.Tidy)
        {
            animator.SetTrigger("tidyTrigger");
        }
        else if (action == ActionMaster.Action.Reset) {
            animator.SetTrigger("resetTrigger");
            lastSettledCount = 10;
        }
        else if (action == ActionMaster.Action.EndTurn)
        {
            animator.SetTrigger("resetTrigger");
            lastSettledCount = 10;
        }
        else if (action == ActionMaster.Action.EndGame)
        {
            throw new UnityException("Can't handle end game yet");
        }

        lastStandingCount = -1; //Indicates new frame
        standingDisplay.color = new Color(0, 167, 0); //back to green text r 0, g 167, b 49, a 255
        ballLeftBox = false;
        ball.Reset();
    }

    int CountStanding() {
        int standing = 0;
        foreach (Pin pin in GameObject.FindObjectsOfType<Pin>())
        {if (pin.IsStanding())
            {
                standing++;
            }

        }
        return standing;
    }

    void OnTriggerExit(Collider collider) {
        GameObject objectExiting = collider.gameObject;

        if (objectExiting.GetComponentInParent<Pin>())
        {
                    Destroy(objectExiting.transform.parent.gameObject);
        }
        // This bit is what was removed with the OnTriggerEnter method and placed on the GutterBall script.
        // I placed it back in here to test if it was the extra box that broke the game.
        else if (objectExiting.GetComponent<Ball>())
        {
            ballLeftBox = true;
            standingDisplay.color = Color.red;
        }
    }
}