using Unity.Burst;
using Unity.Collections;
using Unity.Jobs;
using UnityEngine;

namespace ECSTest
{
    public class TestIJobParallelForDefer
    {
        [BurstCompile]
        public struct PopulateJob : IJob
        {
            public NativeList<int> input;
            
            public void Execute()
            {
                Debug.Log($"000===== length: {input.Length}");
                for (int i = 0; i < 100; ++i)
                    input.Add(i);
            }
        }
        
        [BurstCompile]
        public struct StatJob : IJob
        {
            public NativeList<int> input;
            
            public void Execute()
            {
                Debug.Log($"111===== length: {input.Length}");
            }
        }
        
        
        [BurstCompile]
        public struct ParallelJob : IJobParallelForDefer
        {
            [ReadOnly] public NativeList<int> input;
            
            public void Execute(int index)
            {
                Debug.Log($"index: {index}, length: {input.Length}");
            }
        }

        public static void Test()
        {
            var list = new NativeList<int>(100, Allocator.TempJob);
            var handle = new PopulateJob() {input = list}.Schedule();
            handle = new ParallelJob() { input = list }.Schedule(list, 16, handle);
            handle = new PopulateJob() {input = list}.Schedule(handle);
            handle = new ParallelJob() { input = list }.Schedule(list, 16, handle);
            handle.Complete();
            list.Dispose();
        }
    }
}