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

public class ZibuSlotManager : MonoBehaviour {
    public ScrollRect scrollTop;
    public ScrollRect scrollMid;
    public ScrollRect scrollBot;

    public float matchDelay = 1f;

    private Coroutine matchRoutine;

    void Update() {
        CheckMatch();
    }

    void CheckMatch() {
        string top = GetCenteredZibuId(scrollTop);
        string mid = GetCenteredZibuId(scrollMid);
        string bot = GetCenteredZibuId(scrollBot);

        if (top == mid && mid == bot && !string.IsNullOrEmpty(top)) {
            if (matchRoutine == null) {
                matchRoutine = StartCoroutine(WinAfterDelay(top));
            }
        } else {
            if (matchRoutine != null) {
                StopCoroutine(matchRoutine);
                matchRoutine = null;
            }
        }
    }

    string GetCenteredZibuId(ScrollRect scroll) {
        Vector3 center = scroll.viewport.position;
        float closestDist = float.MaxValue;
        ZibuPiece closest = null;

        foreach (ZibuPiece piece in scroll.content.GetComponentsInChildren<ZibuPiece>()) {
            float dist = Vector3.Distance(piece.transform.position, center);
            if (dist < closestDist) {
                closestDist = dist;
                closest = piece;
            }
        }

        return closest?.zibuId;
    }

    IEnumerator WinAfterDelay(string id) {
        yield return new WaitForSeconds(matchDelay);
        Debug.Log("🎉 WIN! You matched: " + id);
        // Add reward logic here
    }
}