using System.Collections.Generic;
using System.Linq;
using System.Xml;
using System.Xml.Serialization;

namespace RimWorldAnimationStudio
{
    public class ThingAnimationClip : AnimationClip
    {
        [XmlAttribute("Class")] public string className = "Rimworld_Animations.ThingAnimationClip";
        [XmlArray("keyframes"), XmlArrayItem("li")] public List<ThingKeyframe> keyframes = new List<ThingKeyframe>();

        [XmlIgnore] public SimpleCurve PositionX = new SimpleCurve();
        [XmlIgnore] public SimpleCurve PositionZ = new SimpleCurve();
        [XmlIgnore] public SimpleCurve Rotation = new SimpleCurve();

        public override int duration { get { return keyframes.Max(x => x.atTick.Value); } }

        public override void BuildSimpleCurves()
        {
            int duration = 0;

            //getting the length of the whole clip
            foreach (ThingKeyframe frame in keyframes)
            {
                duration += frame.tickDuration;
            }

            //guarantees loops don't get cut off mid-anim
            //this.duration = duration;

            int keyframePosition = 0;
            foreach (ThingKeyframe frame in keyframes)
            {
                if (frame.atTick.HasValue)
                {
                    PositionX.Add((float)frame.atTick / (float)duration, frame.positionX, true);
                    PositionZ.Add((float)frame.atTick / (float)duration, frame.positionZ, true);
                    Rotation.Add((float)frame.atTick / (float)duration, frame.rotation, true);
                }

                else
                {
                    PositionX.Add((float)keyframePosition / (float)duration, frame.positionX, true);
                    PositionZ.Add((float)keyframePosition / (float)duration, frame.positionZ, true);
                    Rotation.Add((float)keyframePosition / (float)duration, frame.rotation, true);

                    keyframePosition += frame.tickDuration;
                }
            }
        }
    }
}