using Fort23.Core;
using UnityEngine;

namespace Core.UI.UTool
{
    public class AccumulatorUtility
    {
        public class AccumulationData
        {
            public float currentTotal;
            public float targetTotal;
            public float duration;
            public System.Action<float> onIncrement;
            public System.Action onComplete;
        }

        /// <summary>
        /// 开始精确累加
        /// </summary>
        public static async void StartAccumulation(int targetTotal, float duration, int steps,
            System.Action<int> onStep, System.Action onComplete = null)
        {
            int stepValue = targetTotal / (steps);
            float timePerStep = duration / steps;
            int currentTotal = 0;

            for (int i = 0; i < steps-1; i++)
            {
                await TimerComponent.Instance.WaitAsync((int)(timePerStep * 1000));


                currentTotal += stepValue;
                onStep?.Invoke(stepValue);
            }

            // 确保最终精度
            // currentTotal = targetTotal;
            onStep?.Invoke(targetTotal - currentTotal);
            onComplete?.Invoke();
        }

        /// <summary>
        /// 开始实时累加（基于Update）
        /// </summary>
        public static async void StartRealtimeAccumulation(AccumulationData data)
        {
            float timer = 0f;
            data.currentTotal = 0f;

            while (timer < data.duration)
            {
                timer += Time.deltaTime;
                float progress = timer / data.duration;

                float newTotal = progress * data.targetTotal;
                float increment = newTotal - data.currentTotal;

                if (increment > 0)
                {
                    data.currentTotal = newTotal;
                    data.onIncrement?.Invoke(data.currentTotal);
                }

                // yield return null;
            }

            data.currentTotal = data.targetTotal;
            data.onIncrement?.Invoke(data.currentTotal);
            data.onComplete?.Invoke();
        }
    }
}