using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Unity.Mathematics;
using UnityEngine;

namespace Ichni.RhythmGame
{
    public class TimeDurationSubmodule: SubmoduleBase
    {
        public bool isOverridingDuration; //是否手动设置了时间区间，开启时，子物体的时间区间将被忽略
        public float startTime, endTime; //起止时间
        
        public TimeDurationSubmodule(BaseElement attachedElement) : base(attachedElement)
        {
            isOverridingDuration = false;
            startTime = -999;//TODO: 换为-delay
            endTime = 999;//TODO: 换为songLength
        }
        
        public TimeDurationSubmodule(BaseElement attachedElement, bool isOverridingDuration, float startTime, float endTime) : base(attachedElement)
        {
            this.isOverridingDuration = isOverridingDuration;
            this.startTime = startTime;
            this.endTime = endTime;
        }
        
        public bool CheckTimeInDuration(float time, float offset = 0.2f)
        {
            return time >= startTime - offset && time <= endTime + offset;
        }
        
        public void SetDuration(float startTime, float endTime)
        {
            this.startTime = startTime;
            this.endTime = endTime;
        }
        
        public void SetDuration(params FlexibleFloat[] flexibleFloats)
        {
            List<float> startTimes = new List<float>();
            List<float> endTimes = new List<float>();
            
            foreach (FlexibleFloat flexibleFloat in flexibleFloats)
            {
                flexibleFloat.Sort();
                
                if (flexibleFloat.animations.Count > 0)
                {
                    startTimes.Add(flexibleFloat.animations[0].startTime);
                    endTimes.Add(flexibleFloat.animations[^1].endTime);
                }
            }
            
            startTime = startTimes.Min();
            endTime = endTimes.Max();
        }

        public void SetDurationFromChildren(List<TimeDurationSubmodule> children)
        {
            List<float2> durations = new List<float2>();

            if (children.Count == 0)
            {
                return;
            }

            foreach (var child in children)
            {
                durations.Add(new float2(child.startTime, child.endTime));
            }

            startTime = durations.Min(duration => duration.x);
            endTime = durations.Max(duration => duration.y);
        }

        public override void SaveBM()
        {
            matchedBM = new Beatmap.TimeDurationSubmodule_BM(attachedElement, this);
        }
    }

    namespace Beatmap
    {
        public class TimeDurationSubmodule_BM : Submodule_BM
        {
            public bool isOverridingDuration;
            public float startTime, endTime;

            public TimeDurationSubmodule_BM()
            {
                
            }

            public TimeDurationSubmodule_BM(BaseElement attachedElement, TimeDurationSubmodule timeDurationSubmodule) : base(attachedElement)
            {
                isOverridingDuration = timeDurationSubmodule.isOverridingDuration;
                startTime = timeDurationSubmodule.startTime;
                endTime = timeDurationSubmodule.endTime;
            }

            public override void ExecuteBM()
            {
                attachedElement = GetElement(attachedElementGuid);
                attachedElement.timeDurationSubmodule = new TimeDurationSubmodule(attachedElement, isOverridingDuration, startTime, endTime);
            }

            public override void DuplicateBM(BaseElement attached)
            {
                attached.timeDurationSubmodule = new TimeDurationSubmodule(attached, isOverridingDuration, startTime, endTime);
            }
        }
    }
}