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


namespace CanTool
{

    enum UpdateReplyStatus
    { 
        OK,                     //肯定回复
        NoReply,                //未回复
        ContinueSend,           //继续发送
    }

    delegate void ISeedToIOKeyArrayFunc(byte[] iSeedArray, out byte[] ioKeyArray, int level);
    delegate void UpdateSendFunc();
    delegate UpdateReplyStatus UpdateReplyFunc(byte[] data, UInt32 len);

    struct UpdateStepItem
    {
        public UpdateSendFunc SendFunc;

        public UpdateReplyFunc ReplyFunc;

        public UpdateStepItem(UpdateSendFunc sendFunc, UpdateReplyFunc replyFunc)
        {
            SendFunc = sendFunc;
            ReplyFunc = replyFunc;
        }
    }

    class UpdateConfigParams
    {
        
        static public bool IsUpdate;//是否在升级中
        static public int UpdateStepNum;//升级的步骤
        static public bool UpdateSendCmdFlag;  //升级中要发送数据

        public UInt32 CANPhyDevRxId;      //物理寻址ID  PCAN发送 HUD接收
        public UInt32 CANFuncDevRxId;     //功能寻址ID  PCAN发送 HUD接收
        public UInt32 CANPhyDevTxId;      //HUD响应ID   PCAN接收 HUD发送

        public byte[] FlashCheckMemoryParams = new byte[2];/*启动FLASH校验例程*/
        public byte[] AppCheckMemoryParams = new byte[2];/*启动APP校验例程*/
        public byte[] CheckProgramCondParams = new byte[2];/*编程预条件检查*/
        public byte[] EraseMemoryParams = new byte[2];/*启动擦除内存*/
        public byte[] CheckCompatibilityParams = new byte[2];/*逻辑块依赖性检查*/


        public byte RequestSeedL1; //请求种子  1级
        public byte SendKeyL1;     //发送密钥  1级
        public byte RequestSeedL2; //请求种子  2级
        public byte SendKeyL2;     //发送密钥  2级
        public byte RequestSeedL3; //请求种子  3级
        public byte SendKeyL3;     //发送密钥  3级
        public byte RequestSeedL4; //请求种子  4级
        public byte SendKeyL4;     //发送密钥  4级

        public byte[] WriteFingerprintDID = new byte[2]; //写入指纹DID

        //加密算法委托
        public ISeedToIOKeyArrayFunc ISeedToIOKeyArray;

        

        
        public UpdateStepItem[] UpdateStepItemArray;


        public uint FlashDriveUpdateStartAddr;      //flashdriver起始地址
        public uint UIFlashDriveUpdateStartAddr;    //UI的flashdriver起始地址 
        public uint AppUpdateStartAddr;             //APP起始地址
        public uint UIUpdateStartAddr;              //UI起始地址
        public uint RectifyStartAddr;               //矫正参数的起始地址 

        //37 服务是否需要CRC校验
        public bool IsUpdateDataCRC;

        public bool CrcIsLsb;

        //FlashDrive文件开头偏移 去掉头的信息
        public int FlashDriveFileOffset;
        //App文件开头偏移 去掉头的信息
        public int AppFileOffset;
        //UI文件开头偏移 去掉头的信息
        public int UIFileOffset;
        //矫正文件开头偏移 去掉头的信息
        public int RectifyFileOffset;

        //UDS最大一个包的数量 单位
        public int UDSMsgLengthMax;


        //构造函数
        public UpdateConfigParams()
        {
        }

        
        //拷贝函数
        public void CopyFrom(UpdateConfigParams Params)
        {

            
            this.CANFuncDevRxId = Params.CANFuncDevRxId;
            this.CANPhyDevRxId = Params.CANPhyDevRxId;
            this.CANPhyDevTxId = Params.CANPhyDevTxId;

            this.RequestSeedL1 = Params.RequestSeedL1;
            this.SendKeyL1 = Params.SendKeyL1;
            this.RequestSeedL2 = Params.RequestSeedL2;
            this.SendKeyL2 = Params.SendKeyL2;


            Params.FlashCheckMemoryParams.CopyTo(this.FlashCheckMemoryParams, 0);
            Params.AppCheckMemoryParams.CopyTo(this.AppCheckMemoryParams, 0);
            Params.CheckProgramCondParams.CopyTo(this.CheckProgramCondParams, 0);
            Params.EraseMemoryParams.CopyTo(this.EraseMemoryParams, 0);
            Params.CheckCompatibilityParams.CopyTo(this.CheckCompatibilityParams, 0);


            this.ISeedToIOKeyArray = Params.ISeedToIOKeyArray;

            this.UpdateStepItemArray = Params.UpdateStepItemArray;


            this.FlashDriveUpdateStartAddr = Params.FlashDriveUpdateStartAddr;
            this.UIFlashDriveUpdateStartAddr = Params.UIFlashDriveUpdateStartAddr;
            this.AppUpdateStartAddr = Params.AppUpdateStartAddr;
            this.UIUpdateStartAddr = Params.UIUpdateStartAddr;
            this.RectifyStartAddr = Params.RectifyStartAddr;

            this.IsUpdateDataCRC = Params.IsUpdateDataCRC;

            this.CrcIsLsb = Params.CrcIsLsb;

            this.FlashDriveFileOffset = Params.FlashDriveFileOffset;
            this.AppFileOffset = Params.AppFileOffset;
            this.UIFileOffset = Params.UIFileOffset;
            this.RectifyFileOffset = Params.RectifyFileOffset;

            this.UDSMsgLengthMax = Params.UDSMsgLengthMax;

            
        }

        public void UpdateSendLoop()
        {
            UpdateSendFunc sendFunc;
            UpdateReplyFunc replyFunc;

            if ((IsUpdate)
                && (UpdateSendCmdFlag)
            )
            {

                sendFunc = UpdateStepItemArray[UpdateStepNum].SendFunc;
                replyFunc = UpdateStepItemArray[UpdateStepNum].ReplyFunc;

                if (sendFunc != null)
                {
                    sendFunc();
                }

                //无需等待回复 直接到下一步
                if (replyFunc == null)
                {
                    UpdateStepNum++;
                }
                else
                {
                    UpdateSendCmdFlag = false;
                }

            }
        }

        public void UpdateReply(byte[] data, UInt32 len)
        {
            UpdateReplyFunc replyFunc;
            UpdateReplyStatus replyStatus;

            if (IsUpdate)
            {
                replyFunc = UpdateStepItemArray[UpdateStepNum].ReplyFunc;

                if (replyFunc != null)
                {
                    replyStatus = replyFunc(data, len);
                    if (replyStatus == UpdateReplyStatus.OK)
                    {
                        ++UpdateStepNum;
                        UpdateSendCmdFlag = true;
                    }
                    else if (replyStatus == UpdateReplyStatus.ContinueSend)
                    {
                        UpdateSendCmdFlag = true;
                    }
                    else if (replyStatus == UpdateReplyStatus.NoReply)
                    {

                    }
                    else
                    { 
                        
                    }
                }

            }
        }
        

    }


    
}