using System;
using TMPro;
using UnityEngine;
using UVC.Extension;
using UVC.UI;

namespace UVC.Factory.Playback.UI
{
    public class UIPlaybackProgressBar : MonoBehaviour
    {
        private TextMeshProUGUI playTimeTxt;
        private TextMeshProUGUI totalTimeTxt;
        private SliderWithEvent progressBar;
        private float progressBarPrevValue = 0;

        private CanvasGroup canvasGroup;
        private int time;

        public Action<int> OnChangeValue { get; set; }

        public int Value
        {
            get
            {
                return (int)progressBar.value;
            }

            set
            {
                if (progressBar.value != value)
                {
                    progressBar.value = value;
                    UpdateTimeText();
                    progressBarPrevValue = value;
                }
            }
        }

        public int MaxValue
        {
            get => (int)progressBar.maxValue;
        }

        public bool Interactable
        {
            get => canvasGroup.interactable;
            set => canvasGroup.interactable = value;
        }

        private void OnDestroy()
        {
            progressBar.onValueChanged.RemoveListener(OnChangeSlider);
            progressBar.OnClickAction = null;
            progressBar.OnDragAction = null;
            progressBar.OnEndDragAction = null;
        }

        public void Init(int time)
        {
            this.time = time;
            canvasGroup = GetComponent<CanvasGroup>();

            playTimeTxt = transform.FindChildren("PlayTimeTxt").GetComponent<TextMeshProUGUI>();
            totalTimeTxt = transform.FindChildren("TotalTimeTxt").GetComponent<TextMeshProUGUI>();
            progressBar = GetComponentInChildren<SliderWithEvent>();

            progressBar.onValueChanged.AddListener(OnChangeSlider);
            progressBar.OnClickAction += OnClickProgressBar;
            progressBar.OnDragAction += OnDragProgressBar;
            progressBar.OnEndDragAction += OnEndDragProgressBar;

            playTimeTxt.text = $"{time.ToString("00")}:00:00";
            totalTimeTxt.text = $"{(time + 1).ToString("00")}:00:00";
            progressBar.value = 0;
            Interactable = true;
        }


        private void OnChangeSlider(float newValue)
        {
            if (!Interactable)
            {
                progressBar.value = progressBarPrevValue;
                UpdateTimeText();
                return;
            }
        }

        private void OnClickProgressBar()
        {
            float snapedValue = SnapProgressBarValue();
            progressBar.value = snapedValue;
            UpdateTimeText();
            if (progressBarPrevValue != snapedValue)
            {
                progressBarPrevValue = snapedValue;
                if (OnChangeValue != null) OnChangeValue.Invoke((int)snapedValue);
            }
        }

        private void OnDragProgressBar()
        {
            float snapedValue = SnapProgressBarValue();
            progressBar.value = snapedValue;
            UpdateTimeText();
        }

        private void OnEndDragProgressBar()
        {
            float snapedValue = SnapProgressBarValue();
            progressBar.value = snapedValue;
            UpdateTimeText();
            if (progressBarPrevValue != snapedValue)
            {
                progressBarPrevValue = snapedValue;
                if (OnChangeValue != null) OnChangeValue.Invoke((int)snapedValue);
            }
        }

        private float SnapProgressBarValue()
        {
            float value = progressBar.value;
            float interval = 60f;
            value = Mathf.Round(value / interval) * interval;
            return value;
        }

        private void UpdateTimeText()
        {
            int minute = (int)progressBar.value / 60;
            int second = (int)progressBar.value % 60;
            string timeStr = time.ToString("00");
            if (progressBar.value == 3600)
            {
                timeStr = (time + 1).ToString("00");
                minute = 0;
            }
            playTimeTxt.text = $"{timeStr}:{minute.ToString("00")}:{second.ToString("00")}";
        }

    }
}