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

public class WorldTimelineManager : MonoBehaviour
{
    public static WorldTimelineManager Instance;

    [Header("Original Panels to Snapshot")]
    public GameObject newEmailReceived;
    public GameObject EmailListPanel;
    public GameObject OpenedEmailPanel;
    public GameObject DataStolen;
    [Header("Timeline Canvas (World Space)")]
    public Transform timelineParent;
    public float panelSpacing = 2f;

    [Header("Playback Settings")]
    public float frameDelay = 1.0f;
    public bool loopPlayback = true;

    private List<GameObject> playbackFrames = new List<GameObject>();
    private Coroutine playbackCoroutine;

    private void Awake()
    {
        Instance = this;
    }

    public void SnapshotCurrentSequence()
    {
        UserActionLogger.Instance.ShowSummary();
        ClearPlaybackFrames();

        CloneAndAddToTimeline(newEmailReceived);
        CloneAndAddToTimeline(EmailListPanel);
        if (OpenedEmailPanel != null)
        {
            CloneAndAddToTimeline(OpenedEmailPanel);
        }

        CloneAndAddToTimeline(DataStolen);
        PlayTimelineLoop();
    }

    private void CloneAndAddToTimeline(GameObject original)
    {
        if (original == null) return;

        GameObject clone = Instantiate(original, timelineParent);
        clone.transform.localScale = original.transform.localScale;
        clone.transform.localRotation = Quaternion.identity;
        clone.transform.localPosition = Vector3.zero;
        //clone.transform.localPosition = Vector3.right * panelSpacing * playbackFrames.Count;

        clone.SetActive(false);
        DisableButtons(clone);

        playbackFrames.Add(clone);
    }

    private void DisableButtons(GameObject root)
    {
        foreach (Button btn in root.GetComponentsInChildren<Button>(true))
        {
            btn.enabled = false;
        }
    }

    public void PlayTimelineLoop()
    {
        if (playbackCoroutine != null)
            StopCoroutine(playbackCoroutine);

        playbackCoroutine = StartCoroutine(PlayFramesInLoop());
    }

    IEnumerator PlayFramesInLoop()
    {
        while (loopPlayback)
        {
            for (int i = 0; i < playbackFrames.Count; i++)
            {
                // Hide all
                foreach (var frame in playbackFrames)
                    frame.SetActive(false);

                // Show current frame
                playbackFrames[i].SetActive(true);

                yield return new WaitForSeconds(frameDelay);
            }
        }
    }

    public void StopLoop()
    {
        loopPlayback = false;

        if (playbackCoroutine != null)
            StopCoroutine(playbackCoroutine);

        foreach (var frame in playbackFrames)
            frame.SetActive(false);
    }

    public void ClearPlaybackFrames()
    {
        if (playbackCoroutine != null)
            StopCoroutine(playbackCoroutine);

        foreach (var frame in playbackFrames)
        {
            if (frame != null)
                Destroy(frame);
        }

        playbackFrames.Clear();
    }
}