using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;

namespace DisComputer
{
    /// <summary>
    /// 操作码单元集
    /// </summary>
    public class OperationUnitSet : MonoBehaviour
    {

        //操作码单元
        public OpCodeUnit op_code_unit;

        //操作数01单元
        public TwoWayUnit op01_number_unit;

        //操作数02单元
        public TwoWayUnit op02_number_unit;

        //寄存数集
        public RegsUnitSet regsUnitSet;


        // Start is called before the first frame update
        void Start()
        {

        }


        /// <summary>
        /// 激活
        /// </summary>
        public void Active(Action finish = null)
        {
            CommandData data = VonNeumann.data;
            string order = data.ActName;
            if (order.Contains("mov3"))
            {
                SetOperationMov3(order,finish);
            }
            else if (order.Contains("add"))
            {
                SetOperationAdd(order,finish);
            }
            else if (order.Contains("div"))
            {
                SetOperationAdd(order, finish);
            }
            else if (order.Contains("mul"))
            {
                SetOperationAdd(order, finish);
            }
            else if (order.Contains("sub"))
            {
                SetOperationAdd(order, finish);
            }
            else if (order.Contains("out"))
            {
                SetOperationOut(order,finish);
            }
            else if (order.Contains("halt"))
            {
                SetOperationHalt(order,finish);
            }

        }

        /// <summary>
        /// mov3 启动
        /// </summary>
        void SetOperationMov3(string data,Action finish = null)
        {
            string[] orders = data.Split(' ');
            foreach(var  order in orders)
            {
                Debug.LogFormat("orders go {0}", order);
            }
            op_code_unit.SetInfoTxt(orders[0]);
            op_code_unit.ShakeUnit();

            int reg_index = 1;

            if (1 < orders.Length)
            {
                reg_index = int.Parse(orders[1]);
                op01_number_unit.ShakeUnit();
                op01_number_unit.SetInfoTxt(orders[1]);
                op01_number_unit.ShowArrow(0, false, ()=> 
                {

                });
            }

            Debug.LogFormat("reg_index {0} ", reg_index);

            if(2 < orders.Length)
            {
                op02_number_unit.ShakeUnit();
                op02_number_unit.SetInfoTxt(orders[2]);
                op02_number_unit.ShowArrow(0, false, () =>
                {
                    finish?.Invoke();
                    //向下
                    regsUnitSet.regs_list[reg_index].ArrowActive(0, orders[2],()=> 
                    {
                   
                        VonNeumannControll.Instance.FinishCurStep();
                        Debug.LogFormat("VonNeumann.CommandIndex  {0}", VonNeumann.CommandIndex);
                        
                    });
                });
            }



        }

        /// <summary>
        /// 加法指令
        /// </summary>
        /// <param name="data"></param>
        /// <param name="finish"></param>
        void SetOperationAdd(string data,Action finish = null)
        {
            string[] orders = data.Split(' ');
            foreach (var order in orders)
            {
                Debug.LogFormat("orders go {0}", order);
            }

            op_code_unit.SetInfoTxt(orders[0]);
            op_code_unit.ShakeUnit();

            op01_number_unit.ShakeUnit();
            op01_number_unit.SetInfoTxt(orders[1]);
            int reg_index = int.Parse(orders[1]);

            op01_number_unit.ShowArrow(0, false, () =>
            {
                regsUnitSet.regs_list[reg_index].ArrowActive(0, "", () =>
                {


                });
            });


            op02_number_unit.ShakeUnit();
            op02_number_unit.SetInfoTxt(orders[2]);

            op02_number_unit.ShowArrow(0, false, () =>
            {
                finish?.Invoke();
                //向下
                regsUnitSet.regs_list[reg_index+1].ArrowActive(0, "", () =>
                {
                    StartCoroutine(AddProgress(reg_index, orders[0]));
                });
            });

        }

        /// <summary>
        /// 加法进度
        /// </summary>
        /// <returns></returns>
        IEnumerator AddProgress(int regIndex,string commandVal)
        {
            yield return new WaitForSeconds(1.5f);


            regsUnitSet.regs_list[regIndex].SelfActiveArrow(1, "", () =>
            {
                

                regsUnitSet.top_arrow.PlayTopCenter(0, regIndex+1,-1,()=>{

                    op_code_unit.ShakeUnit();
                    op_code_unit.ShowArrow(0, false, () =>
                    {
                        ALUUnit aLUUnit = op_code_unit.nextUnit.GetComponent<ALUUnit>();
                        aLUUnit.CommandRegist();
                        aLUUnit.ShakeUnit();

                        regsUnitSet.top_arrow.PlayTopCenter(0, regIndex, 1, () =>
                        {
                            regsUnitSet.regs_list[regIndex].ArrowActive(0, VonNeumann.data.result.ToString(), () =>
                            {
                                VonNeumannControll.Instance.FinishCurStep();
                                Debug.LogFormat("operation VonNeumann.CommandIndex  {0}", VonNeumann.CommandIndex);
                            });
                            regsUnitSet.regs_list[regIndex + 1].RewindUnit();
                        });
                    });


                });
          
            });

            //向上
            regsUnitSet.regs_list[regIndex + 1].SelfActiveArrow(1, "", () =>
            {
                
            });
        }


        /// <summary>
        /// 输出
        /// </summary>
        /// <param name="data"></param>
        /// <param name="finish"></param>
        void SetOperationOut(string data ,Action finish = null)
        {
            string[] orders = data.Split(' ');
            foreach (var order in orders)
            {
                Debug.LogFormat("orders go {0}", order);
            }
            op_code_unit.SetInfoTxt(orders[0]);
            op_code_unit.ShakeUnit();
            int reg_index = int.Parse(orders[1]);

            regsUnitSet.regs_list[reg_index].SelfActiveArrow(1, "", () =>
            {
                //播放中间指向箭头
                regsUnitSet.top_arrow.PlayTopCenter(reg_index, 10, 1, () =>
                {
                    regsUnitSet.io_unit.ArrowActive(0, "", () =>
                    {
                        VonNeumannControll.Instance.FinishCurStep();
                        Debug.LogFormat("out VonNeumann.CommandIndex  {0}", VonNeumann.CommandIndex);
                    });
                });

            });

            regsUnitSet.regs_list[reg_index + 1].RewindUnit();


            op01_number_unit.ShakeUnit();
            op01_number_unit.SetInfoTxt(orders[1]);

            op02_number_unit.SetInfoTxt("");



        }


        /// <summary>
        /// 终止
        /// </summary>
        /// <param name="data"></param>
        /// <param name="finish"></param>
        void SetOperationHalt(string data, Action finish = null)
        {

        }





        public void Rewind()
        {
            op_code_unit.RewindUnit();
            op01_number_unit.RewindUnit();
            op02_number_unit.RewindUnit();          
        }



    }
}