using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using UnityEngine;
using Verse;

namespace Rimworld_Animations
{
    public class GroupAnimationDef : Def
    {
        public int numActors;
        public List<AnimationStage> animationStages;
        public List<BaseGroupAnimationContext> contexts;
        public List<AnimationOffsetDef> offsetDefs;


        public bool canAnimationBeUsed(List<Pawn> actors, out int reorder)
        {
            if (RJWAnimationSettings.debugMode)
            {
                Log.Message("[anims] Checking if " + defName + " is valid animation");
            }
            
            
            foreach (BaseGroupAnimationContext context in contexts)
            {
                if (context.CanAnimationBeUsed(actors, out reorder))
                {
                    return true;
                }
            }

            reorder = 0;
            return false;
        }

        public List<AnimationDef> GetAllAnimationsForActor(int actor, int seed, int reorder = 0)
        {
            List<AnimationDef> animations = new List<AnimationDef>();
            int actorNumber = (actor + reorder) % numActors;


            foreach (AnimationStage stage in animationStages)
            {
                //add all new animations to list of animations
                animations.AddRange(stage.GetAnimations(actorNumber, seed));
            }

            return animations;
        }

        public bool GetOffset(int actor, Pawn pawn, out Vector3? position, out int? rotation, int reorder = 0)
        {

            position = null;
            rotation = null;

            //element at or default to stop errors
            if (offsetDefs == null) return false;
            if ((actor + reorder) % numActors >= offsetDefs.Count) return false;
            if (offsetDefs[(actor + reorder) % numActors].FindOffset(pawn, out BaseAnimationOffset animationOffset))
            {
                position = animationOffset.getOffset(pawn);
                rotation = animationOffset.getRotation(pawn);
                return true;
            }

            return false;
        }
    }
}