using System;
using JoeSiu.Common.Serialization.Runtime;
using TMPro;
using UnityEditor;
using UnityEngine;

namespace Common.Timer.Runtime.UI
{
    public class TimerDebugText : MonoBehaviour
    {
        [SerializeField]
        private SerializableInterface<ITimer> _timer = new();
        public TMP_Text text;
        public string prefix;
        public int decimalPlaces = 2;

        public ITimer Timer
        {
            get => _timer.Value;
            set => _timer.Value = value;
        }

        private void Reset()
        {
            text = GetComponent<TMP_Text>();
        }

        private void OnValidate()
        {
#if UNITY_EDITOR
            if (!EditorApplication.isPlaying && Selection.Contains(gameObject)) UpdateText(Timer);
#endif
        }

        private void Update()
        {
            UpdateText(Timer);
        }

        public void UpdateText(ITimer timer)
        {
            if (!text) return;
            if (timer == null) return;

            var format = $"F{decimalPlaces}";
            var info = string.IsNullOrEmpty(prefix) ? "" : $"{prefix}\n";
            if (timer is Behaviour behaviour) info += $"enabled: {behaviour.enabled}\n";
            info += $"active: {timer.IsActive}\n";

            switch (timer)
            {
                // Check if timer implements IStopwatch
                case IStopwatch stopwatch:
                    info += $"isTimeReached: {stopwatch.IsTimeReached}\n";
                    info += $"{Math.Round(stopwatch.CurrentTime, decimalPlaces).ToString(format)}s / " +
                            $"{Math.Round(stopwatch.Duration, decimalPlaces).ToString(format)}s " +
                            $"(remain: {Math.Round(stopwatch.RemainingTime, decimalPlaces).ToString(format)}s)\n";
                    break;
                // Fallback for base Timer class
                default:
                    info += $"{Math.Round(timer.CurrentTime, decimalPlaces).ToString(format)}s\n";
                    break;
            }

            text.text = info;
        }
    }
}