using System;
using System.Collections;
using UnityEngine;

public class DiceView : MonoBehaviour, IBase
{
    private Rigidbody rb;
    private bool rolling;

    [SerializeField] private DiceSide[] diceSides;
    [SerializeField] private float sideValueTime = 1.2f;
    [SerializeField] private Vector3 startPos = new Vector3(0, 20, 0);

    [Header("Physics Randomness")]
    [SerializeField] private float baseSpinForce = 900f;
    [SerializeField] private float sideForce = 0.18f;
    [SerializeField] private float liftForce = 0.1f;

    private Quaternion startRotation;
    private Action<int> onRollingComplete = null;

    void Awake()
    {
        rb = GetComponent<Rigidbody>();
        rb.useGravity = false;
        transform.localPosition = startPos;
        startRotation = transform.localRotation;
    }
    
    public void Roll(Action<int> onComplete, bool isBot)
    {
        Debug.Log($"Start rolling: {rolling}");

        if (!rolling)
        {
            Debug.Log($"isBot: {isBot}");
            onRollingComplete = onComplete;
            StartCoroutine(RollRoutine());
        }
    }

    IEnumerator RollRoutine()
    {
        rolling = true;

        // MICRO DELAY → breaks physics sync between dice
        yield return new WaitForSeconds(UnityEngine.Random.Range(0.01f, 0.06f));

        rb.useGravity = true;

        // PER-DICE FORCE MULTIPLIER
        float spinMultiplier = UnityEngine.Random.Range(0.8f, 1.25f);

        // RANDOM TORQUE
        rb.AddTorque(
            UnityEngine.Random.Range(-baseSpinForce, baseSpinForce) * spinMultiplier,
            UnityEngine.Random.Range(-baseSpinForce, baseSpinForce) * spinMultiplier,
            UnityEngine.Random.Range(-baseSpinForce, baseSpinForce) * spinMultiplier,
            ForceMode.Impulse
        );

        // RANDOM SIDE FORCE
        Vector3 sideDir = new Vector3(
            UnityEngine.Random.Range(-1f, 1f),
            0f,
            UnityEngine.Random.Range(-1f, 1f)
        ).normalized;

        rb.AddForce(sideDir * sideForce, ForceMode.Impulse);

        // SMALL UPWARD FORCE
        rb.AddForce(Vector3.up * liftForce, ForceMode.Impulse);

        yield return new WaitForSeconds(sideValueTime);

        int value = GetDiceValue();

        //TODO: Use the dice value as needed
        Debug.Log($"Dice rolled: {value}");

        ResetDice();
        onRollingComplete?.Invoke(value);
    }

    int GetDiceValue()
    {
        foreach (DiceSide side in diceSides)
        {
            if (side.OnGround())
                return side.sideValue;
        }

        return 1;
    }

    public void ResetDice()
    {
        rb.useGravity = false;
        rb.velocity = Vector3.zero;
        rb.angularVelocity = Vector3.zero;
        transform.localPosition = startPos;
        rolling = false;
    }

    public void ResetOnSessionEnd()
    {
        ResetDice();
        transform.localRotation = startRotation;
        onRollingComplete = null;
    }
}