using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Video;
using OscJack;
using TMPro;


public class MotyOscHandler : MonoBehaviour
{

    [SerializeField]
    public CanvasGroup intro;
    

    [SerializeField]
    public CanvasGroup main;


    [SerializeField]
    public VideoPlayer videoStandby;


    [SerializeField]
    public VideoPlayer videoIntro;
    
    
    [SerializeField]
    public VideoPlayer videoEnding;

    [SerializeField]
    public VideoPlayer videoAd;


    [SerializeField]
    public Image mask;

    [SerializeField]
    public float _fadeDuration = 1f;

    [SerializeField]
    public float _hintDuration = 0.5f;

    [SerializeField]
    public float _maskDuration = 0.2f;
    [SerializeField]
    public float _lastDurationToShow = 30f;

    [SerializeField]
    public TextMeshProUGUI statusText;

    [SerializeField]
    public CanvasGroup hint;

    private IEnumerator coroutine_hint;
    private IEnumerator coroutine_countdown;

    SetChoiceEffect setChoiceEffect;

    [SerializeField]
    public TextMeshProUGUI stepText;

    [SerializeField]
    public CanvasGroup hintforChat;
    [SerializeField]
    public CanvasGroup hintforStep;

    private IEnumerator coroutine_breath;

    public CanvasGroup hintforInput;


    // Start is called before the first frame update
    void Start()
    {
        setChoiceEffect = main?.GetComponent<SetChoiceEffect>();
    }

    // Update is called once per frame
    void Update()
    {

    }


    private IEnumerator FadeCanvasGroup(CanvasGroup canvasGroup, float startAlpha, float endAlpha, float duration, float delay = 0f)
    {
        if (delay > 0f)
            yield return new WaitForSeconds(delay);

        canvasGroup.alpha = startAlpha;
        float elapsedTime = 0f;

        while (elapsedTime < duration)
        {
            elapsedTime += Time.deltaTime;
            canvasGroup.alpha = Mathf.Lerp(startAlpha, endAlpha, elapsedTime / duration);
            yield return null;
        }

        canvasGroup.alpha = endAlpha;
    }

    private IEnumerator DecreaseFill(float duration)
    {
        float elapsed = 0f;
        mask.fillAmount = 1f;

        while (elapsed < duration)
        {
            elapsed += Time.deltaTime;

            if (duration - elapsed > _lastDurationToShow)
            {
                mask.fillAmount = 0;
                mask.gameObject.SetActive(false);
            }
            else
            {
                mask.gameObject.SetActive(true);
                mask.fillAmount = Mathf.Lerp(0f, 1f, (duration - elapsed) / _lastDurationToShow);
            }
            yield return null;
        }

        mask.fillAmount = 0f;
    }

    public void ToggleVideo(string status)
    {
        switch(status)
        {
            case "intro":
                videoStandby.gameObject.SetActive(false);
                videoEnding.gameObject.SetActive(false);
                
                videoIntro.time = 0f;
                videoIntro.Play();
                if (intro.alpha > 0f) StartCoroutine(FadeCanvasGroup(intro, intro.alpha, 0f, _fadeDuration));
                break;
            case "end":
                videoStandby.gameObject.SetActive(false);
                videoEnding.gameObject.SetActive(true);
                videoAd.gameObject.SetActive(false);

                videoEnding.time = 0f;
                videoEnding.Play();
                if (intro.alpha < 1f) StartCoroutine(FadeCanvasGroup(intro, intro.alpha, 1f, _fadeDuration));
                break;
            case "standby":            
                videoStandby.gameObject.SetActive(true);
                videoEnding.gameObject.SetActive(false);
                videoAd.gameObject.SetActive(false);

                videoStandby.time = 0f;
                videoStandby.Play();
                if (intro.alpha < 1f) StartCoroutine(FadeCanvasGroup(intro, intro.alpha, 1f, _fadeDuration));
                break;
            case "ad":            
                videoStandby.gameObject.SetActive(false);
                videoEnding.gameObject.SetActive(false);
                videoAd.gameObject.SetActive(true);
                
                videoAd.time = 0f;
                videoAd.Play();
                if (intro.alpha < 1f) StartCoroutine(FadeCanvasGroup(intro, intro.alpha, 1f, _fadeDuration));
                break;
            case "reset":
                videoStandby.gameObject.SetActive(false);
                videoEnding.gameObject.SetActive(false);
                videoAd.gameObject.SetActive(false);
                StartCoroutine(FadeCanvasGroup(intro, intro.alpha, 0f, _fadeDuration));
                break;
        }
    }


    public void onStatus(string status)
    {
        Debug.Log("/status message received: " + status);

        ToggleVideo("reset");

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

        mask.fillAmount = 0f;

        switch (status)
        {
            case "reset":
                // intro.alpha = 1.0f;
                 if (main.alpha > 0f)
                    StartCoroutine(FadeCanvasGroup(main, main.alpha, 0f, _fadeDuration));
                // if (intro.alpha < 1f)
                //     StartCoroutine(FadeCanvasGroup(intro, intro.alpha, 1f, _fadeDuration));
                
                // light_mask.alpha = 0f;
                hint.alpha = 0f;
                // setChoiceEffect?.Reset();

                ToggleVideo("standby");

                break;
            case "intro":
                // StartCoroutine(FadeCanvasGroup(light_mask, 0f, 1f, _maskDuration));
                // StartCoroutine(FadeCanvasGroup(intro, 0f, 1f, _fadeDuration, _maskDuration));
                if (main.alpha > 0f)
                    StartCoroutine(FadeCanvasGroup(main, main.alpha, 0f, _fadeDuration));
                    
                StartCoroutine(FadeCanvasGroup(hint, hint.alpha, 1f, _hintDuration));
                ToggleVideo("intro");

                break;
            case "go":

                // if (light_mask.alpha < 1f) StartCoroutine(FadeCanvasGroup(light_mask, light_mask.alpha, 1f, _fadeDuration));
                // StartCoroutine(FadeCanvasGroup(intro, intro.alpha, 0f, _fadeDuration));
                StartCoroutine(FadeCanvasGroup(main, main.alpha, 1f, _fadeDuration));

                break;
            case "end":
                // if (intro.alpha > 0f) StartCoroutine(FadeCanvasGroup(intro, 1f, 0f, _fadeDuration));
                // StartCoroutine(FadeCanvasGroup(main, 1f, 0f, _fadeDuration));
                main.alpha = 0f;
                // StartCoroutine(FadeCanvasGroup(light_mask, 1f, 0f, _maskDuration, _fadeDuration));
                if (hint.alpha > 0f)
                {
                    coroutine_hint = FadeCanvasGroup(hint, hint.alpha, 0f, _hintDuration);
                    StartCoroutine(coroutine_hint);
                }

                ToggleVideo("end");

                break;
            case "ad":
                ToggleVideo("ad");
                break;
            default:
                Debug.LogWarning("Unknown status: " + status);
                break;
        }

    }
    public void onCountDown(string time)
    {
        Debug.Log("/countdown message received: " + time);

        if (mask != null)
        {

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

            if (time == "0")
            {
                mask.fillAmount = 0f;
                mask.gameObject.SetActive(false);

            }
            else
            {
                coroutine_countdown = DecreaseFill(float.Parse(time));
                StartCoroutine(coroutine_countdown);
            }
        }

    }
    public void onSpeechPause(string pause)
    {
        Debug.Log("/speechpause message received: " + pause);
        float pause_time = float.Parse(pause);
        if (pause_time > 0f)
        {
            StartCoroutine(FadeCanvasGroup(hintforInput, hintforInput.alpha, 0f, pause_time/1000.0f));
        }

    }
    public void onInput(string input)
    {
        Debug.Log("/input message received: " + input);
        



        if (input.Length == 0)
        {
            statusText.text = "";
            // hintforChat.alpha = 0f;            
            if (hintforChat.alpha > 0f)
            {
                StartCoroutine(FadeCanvasGroup(hintforChat, hintforChat.alpha, 0f, _hintDuration));
            }
        }
        else
        {
            hintforInput.alpha = 1.0f;

            if (hint.alpha < 1f)
            {
                if (coroutine_hint != null) StopCoroutine(coroutine_hint);
                coroutine_hint = FadeCanvasGroup(hint, hint.alpha, 1f, _hintDuration);
                StartCoroutine(coroutine_hint);
            }


            // statusText.text = input;
            StartCoroutine(TypeWriter(statusText, input));
            // hintforChat.alpha = 1f;
            // if (hintforChat.alpha < 1f)
            // {
            StartCoroutine(FadeCanvasGroup(hintforChat, hintforChat.alpha, 1f, _hintDuration));

            // }

            if (hint.alpha < 1f)
            {
                // if (coroutine_hint != null) StopCoroutine(coroutine_hint);
                // coroutine_hint = FadeCanvasGroup(hint, hint.alpha, 1f, _hintDuration);
                // StartCoroutine(coroutine_hint);

                if (coroutine_hint != null) StopCoroutine(coroutine_hint);
                coroutine_hint = BreathFade(hint);
                StartCoroutine(coroutine_hint);

            }
        }


    }
    public void onHint(string text)
    {
        Debug.Log("/hint message received: " + text);

        // stepText.text = text;
        StartCoroutine(TypeWriter(stepText, text));

        StartCoroutine(FadeCanvasGroup(hintforStep, hintforStep.alpha, 1f, _hintDuration));

        if (coroutine_breath != null) StopCoroutine(coroutine_breath);
        // coroutine_hint = FadeCanvasGroup(hint, hint.alpha, text.Length > 0 ? 1f : 0f, _hintDuration);
        // StartCoroutine(coroutine_hint);

        hintforInput.alpha = 1.0f;

        coroutine_breath = BreathFade(hintforStep);
        StartCoroutine(coroutine_breath);

        
    }
    private IEnumerator BreathFade(CanvasGroup canvasGroup, float maxAlpha=1f, float minAlpha=0.5f,
                    float fadeInDuration=1.2f, float fadeOutDuration=1.2f, int cycles=20)
    {
        for (int i = 0; i < cycles; i++)
        {
            // Fade out
            float elapsed = 0f;
            while (elapsed < fadeOutDuration)
            {
                elapsed += Time.deltaTime;
                canvasGroup.alpha = Mathf.Lerp(maxAlpha, minAlpha, elapsed / fadeOutDuration);
                yield return null;
            }
            canvasGroup.alpha = minAlpha;

            // Fade in
            elapsed = 0f;
            while (elapsed < fadeInDuration)
            {
                elapsed += Time.deltaTime;
                canvasGroup.alpha = Mathf.Lerp(minAlpha, maxAlpha, elapsed / fadeInDuration);
                yield return null;
            }
            canvasGroup.alpha = maxAlpha;
        }
    }
    public IEnumerator TypeWriter(TextMeshProUGUI textComponent, string message, float typeSpeed = 0.2f)
    {

        textComponent.text = "";
        foreach (char c in message)
        {
            textComponent.text += c;
            yield return new WaitForSeconds(typeSpeed);
        }
    }
    
    

}