using System;
using System.Collections;
using System.Collections.Generic;
using DG.Tweening;
using TMPro;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.UI;

namespace Ichni.UI
{
    public partial class ValueModifier : SettingsUIElementBase
    {
        public int intValue;
        public int intStep;
        public int intMin;
        public int intMax;

        public ModifyValueButton increaseButton;
        public ModifyValueButton decreaseButton;
        public TMP_Text valueText;

        public Image barImage;

        public string prefix;
        public string suffix;
        public bool showPositiveMark;

        public void SetUp(int initialValue, int step)
        {
            intStep = step;
            intMin = int.MinValue;
            intMax = int.MaxValue;

            base.SetUp();

            increaseButton.SetUpButton(IncreaseValue, IncreaseValue);
            decreaseButton.SetUpButton(DecreaseValue, DecreaseValue);
            SetValue(initialValue);
            UpdateValueText();
        }

        public void SetMinMax(int min, int max)
        {
            intMin = Convert.ToInt32(min);
            intMax = Convert.ToInt32(max);
            UpdateValueText();

        }

        public void SetPrefixAndSuffix(string prefix, string suffix, bool showPositiveMark)
        {
            this.showPositiveMark = showPositiveMark;
            this.prefix = prefix;
            this.suffix = suffix;
            UpdateValueText();
        }
    }

    public partial class ValueModifier
    {
        public int GetNearestValue(float percentage)
        {
            int valueRange = intMax - intMin;
            int stepCount = Mathf.RoundToInt(percentage * valueRange / intStep);
            int nearestValue = intMin + stepCount * intStep;

            return nearestValue;
        }
    }

    public partial class ValueModifier
    {
        public void SetValue(int value, bool usingAnimation = false)
        {
            intValue = Convert.ToInt32(value);
            intValue = Mathf.Clamp(intValue, intMin, intMax);

            if (usingAnimation) UpdateValueTextTween(); else UpdateValueText();
        }

        public void IncreaseValue()
        {
            SetValue(intValue + 1, true);
        }

        public void DecreaseValue()
        {
            SetValue(intValue - 1, true);
        }

        public void UpdateValueText()
        {

            valueText.text = prefix + (showPositiveMark && intValue > 0 ? "+" : "") + intValue.ToString() + suffix;
            var target = new Vector2((float)(intValue - intMin) / (intMax - intMin) * 560, 20);
            barImage.rectTransform.sizeDelta = target;
            updateValueAction?.Invoke();
        }

        private Tween tween;
        private int LastValue = -1;
        public void UpdateValueTextTween()
        {
            if (LastValue == intValue) return;
            tween?.Complete();
            valueText.text = prefix + (showPositiveMark && intValue > 0 ? "+" : "") + intValue.ToString() + suffix;
            var target = new Vector2((float)(intValue - intMin) / (intMax - intMin) * 560, 20);
            tween = barImage.rectTransform.DOSizeDelta(target, 0.2f).SetEase(Ease.OutExpo).Play();
            LastValue = intValue;
            updateValueAction?.Invoke();
        }

        public int GetValue()
        {
            return intValue;
        }
    }
}