package com.rfid.uhf288;

import java.io.File;

/**
 * RFID UHF288设备JNI接口
 * 对应DLL: com_rfid_uhf288_Device.dll
 * 
 * 参考demo项目的加载方式：在static代码块中加载DLL
 * 注意：DLL可能不支持多线程并发访问，需要同步保护
 */
public class Device {

	// DLL加载状态标志
	private static volatile boolean libraryLoaded = false;
	// DLL加载锁，确保只加载一次
	private static final Object loadLock = new Object();

	/**
	 * 静态代码块：加载DLL库
	 * 参考demo项目的方式，优先使用绝对路径加载，如果失败则尝试从系统PATH加载
	 */
	static {
		loadLibrary();
	}

	/**
	 * 加载DLL库
	 * 优先使用绝对路径直接加载，如果失败则尝试从系统PATH加载（参考demo项目的方式）
	 * 使用同步锁确保线程安全，避免多线程同时加载导致冲突
	 */
	private static void loadLibrary() {
		// 如果已经加载，直接返回
		if (libraryLoaded) {
			return;
		}
		
		// 同步加载，确保只加载一次
		synchronized (loadLock) {
			// 双重检查，避免重复加载
			if (libraryLoaded) {
				return;
			}
			
			String mainDllName = "com_rfid_uhf288_Device.dll";
			String depDllName = "UHFReader288.dll"; // 依赖的DLL

			// 方法1: 使用绝对路径直接加载DLL
			try {
			// 使用真实路径加载DLL
			String projectBaseDir = "D:\\work\\work-zy\\zy-wcs";
			String mainDllPath = projectBaseDir + "\\src\\main\\resources\\lib\\" + mainDllName;
			String depDllPath = projectBaseDir + "\\src\\main\\resources\\lib\\" + depDllName;
			
			File mainDllFile = new File(mainDllPath);
			File depDllFile = new File(depDllPath);
			
			if (mainDllFile.exists() && mainDllFile.canRead()) {
				// 先尝试加载依赖DLL（如果存在）
				if (depDllFile.exists() && depDllFile.canRead()) {
					try {
						System.load(depDllPath);
						System.out.println("成功加载依赖DLL: " + depDllName + " (路径: " + depDllPath + ")");
					} catch (UnsatisfiedLinkError e) {
						// 依赖DLL可能已经加载过，或者加载失败
						// 如果错误信息不是"已加载"，则打印警告
						if (e.getMessage() == null || !e.getMessage().contains("already loaded")) {
							System.err.println("警告: 依赖DLL加载失败（继续尝试加载主DLL）: " + depDllName);
							System.err.println("错误信息: " + e.getMessage());
						}
					}
				}
				
				// 加载主DLL
				System.load(mainDllPath);
				System.out.println("成功从绝对路径加载DLL: " + mainDllName + " (路径: " + mainDllPath + ")");
				System.out.println("DLL文件大小: " + mainDllFile.length() + " 字节");
				libraryLoaded = true;
				return;
			} else {
				System.err.println("DLL文件不存在或不可读: " + mainDllPath);
			}
		} catch (UnsatisfiedLinkError e) {
			// 如果是依赖库错误，提供更详细的错误信息
			if (e.getMessage() != null && e.getMessage().contains("dependent libraries")) {
				System.err.println("DLL依赖库加载失败: " + e.getMessage());
				System.err.println("请确保所有依赖DLL文件都在同一目录中");
			}
			System.err.println("从绝对路径加载DLL失败: " + e.getMessage());
			e.printStackTrace();
		} catch (Exception e) {
			System.err.println("从绝对路径加载DLL失败: " + e.getMessage());
			e.printStackTrace();
		}

		/* 方法2（已注释）: 尝试从resources目录提取到临时目录加载
		try {
			// 创建专门的临时目录来存放所有DLL（只创建一次）
			if (tempLibDir == null) {
				tempLibDir = createTempLibDirectory();
			}
			
			if (tempLibDir != null && tempLibDir.exists()) {
				// 先提取所有DLL到同一目录
				File depDll = extractDllToDir("/lib/" + depDllName, depDllName, tempLibDir);
				File mainDll = extractDllToDir("/lib/" + mainDllName, mainDllName, tempLibDir);
				
				if (mainDll != null && mainDll.exists()) {
					// 先尝试加载依赖DLL（如果存在）
					if (depDll != null && depDll.exists()) {
						try {
							System.load(depDll.getAbsolutePath());
							System.out.println("成功加载依赖DLL: " + depDllName + " (路径: " + depDll.getAbsolutePath() + ")");
						} catch (UnsatisfiedLinkError e) {
							if (e.getMessage() == null || !e.getMessage().contains("already loaded")) {
								System.err.println("警告: 依赖DLL加载失败（继续尝试加载主DLL）: " + depDllName);
								System.err.println("错误信息: " + e.getMessage());
							}
						}
					}
					
					System.load(mainDll.getAbsolutePath());
					System.out.println("成功从resources目录加载DLL: " + mainDllName + " (路径: " + mainDll.getAbsolutePath() + ")");
					return;
				}
			}
		} catch (Exception e) {
			System.err.println("从resources目录加载DLL失败: " + e.getMessage());
			e.printStackTrace();
		}
		*/

			// 方法3: 尝试从系统PATH或java.library.path加载（参考demo项目的方式）
			try {
				System.loadLibrary("com_rfid_uhf288_Device");
				System.out.println("成功从系统PATH加载DLL: " + mainDllName);
				System.out.println("注意：如果后续native方法调用失败，请检查DLL版本是否匹配");
				libraryLoaded = true;
				return;
			} catch (UnsatisfiedLinkError e) {
				System.err.println("无法从系统PATH加载RFID设备DLL库: " + mainDllName);
				System.err.println("错误信息: " + e.getMessage());
				System.err.println("请确保DLL文件在系统PATH或项目lib目录中");
				e.printStackTrace();
			}
			
			// 如果所有方法都失败，记录错误
			if (!libraryLoaded) {
				System.err.println("========================================");
				System.err.println("RFID设备DLL加载失败！");
				System.err.println("请检查：");
				System.err.println("1. DLL文件是否存在: D:\\work\\work-zy\\zy-wcs\\src\\main\\resources\\lib\\com_rfid_uhf288_Device.dll");
				System.err.println("2. DLL文件是否完整");
				System.err.println("3. DLL文件是否在系统PATH中");
				System.err.println("4. 从demo项目中复制正确的DLL文件");
				System.err.println("========================================");
			}
		}
	}

	/**
	 * @param args
	 */
	public native int OpenComPort(int port,byte[]comAddr,byte baud,int[]PortHandle);
	public native int CloseSpecComPort(int PortHandle);
	public native int OpenNetPort(int Port,String IPaddr,byte[]comAddr,int[] PortHandle);
	public native int CloseNetPort(int PortHandle);
	public native int GetReaderInformation(byte[]comAddr,byte[]versionInfo,byte[]readerType,byte[]trType,byte[]dmaxfre,
										   byte[]dminfre,byte[]powerdBm,byte[]InventoryScanTime,byte[]Ant,byte[]BeepEn,
										   byte[]OutputRep,byte[]CheckAnt,int PortHandle);

	public native int Inventory_G2(byte[]comAddr,byte QValue,byte Session,byte MaskMem,byte[]MaskAdr,byte MaskLen,
								   byte[]MaskData,byte MaskFlag,byte AdrTID,byte LenTID,byte TIDFlag,byte Target,
								   byte InAnt,byte Scantime,byte FastFlag,byte[]pEPCList,byte[] Ant,int[]Totallen,
								   int[]CardNum,int PortHandle);

	public native int InventoryMix_G2(byte[]comAddr,byte QValue,byte Session,byte MaskMem,byte[]MaskAdr,byte MaskLen,
									  byte[]MaskData,byte MaskFlag,byte ReadMem,byte[]ReadAdr,byte ReadLen,byte[]Psd,
									  byte Target,byte InAnt,byte Scantime,byte FastFlag,byte[]pEPCList,byte[] Ant,
									  int[]Totallen,int[]CardNum,int PortHandle);

	public native int ReadData_G2(byte[]comAddr,byte[] EPC,byte ENum,byte Mem,byte WordPtr,byte Num,byte[]Password,
								  byte MaskMem,byte[]MaskAdr,byte MaskLen,byte[]MaskData,byte[]Data,int[]Errorcode,
								  int PortHandle);

	public native int WriteData_G2(byte[]comAddr,byte[] EPC,byte WNum,byte ENum,byte Mem,byte WordPtr,byte[] Wdt,
								   byte[]Password,byte MaskMem,byte[]MaskAdr,byte MaskLen,byte[]MaskData,int[]Errorcode,
								   int PortHandle);

	public native int WriteEPC_G2(byte[]comAddr,byte[] Password,byte[] EPC,byte ENum,int[]Errorcode,int PortHandle);

	public native int KillTag_G2(byte[]comAddr,byte[] EPC,byte ENum,byte[] Killpwd,byte MaskMem,byte[]MaskAdr,byte MaskLen,
								 byte[]MaskData,int[]Errorcode,int PortHandle);
	public native int Lock_G2(byte[]comAddr,byte[] EPC,byte ENum,byte selectid,byte setprotect,byte[] Password,byte MaskMem,
							  byte[]MaskAdr,byte MaskLen, byte[]MaskData,int[]Errorcode,int PortHandle);
	public native int BlockErase_G2(byte[]comAddr,byte[] EPC,byte ENum,byte Mem,byte WordPtr,byte Num,byte[] Password,
									byte MaskMem,byte[]MaskAdr,byte MaskLen, byte[]MaskData,int[]Errorcode,int PortHandle);
	public native int SetRegion(byte[]comAddr, byte dmaxfre,byte dminfre,int PortHandle);
	public native int SetAddress(byte[]comAddr, byte ComAdrData,int PortHandle);
	public native int SetInventoryScanTime(byte[]comAddr, byte ScanTime,int PortHandle);
	public native int SetBaudRate(byte[]comAddr, byte baud,int PortHandle);
	public native int SetRfPower(byte[]comAddr, byte PowerDbm,int PortHandle);
	public native int SetWorkMode(byte[]comAddr, byte Read_mode,int PortHandle);
	public native int GetSystemParameter(byte[]comAddr,byte[]Read_mode,byte[]Accuracy,byte[]RepCondition,byte[]RepPauseTime,
										 byte[]ReadPauseTim,byte[]TagProtocol,byte[]MaskMem,byte[]MaskAdr,byte[]MaskLen,
										 byte[]MaskData, byte[]TriggerTime,byte[]AdrTID,byte[]LenTID,int PortHandle);
	public native int SetAntennaMultiplexing(byte[]comAddr, byte Ant,int PortHandle);
	public native int SetAntenna(byte[]comAddr, byte SetOnce,byte AntCfg1,byte AntCfg2,int PortHandle);
	public native int WriteRfPower(byte[]comAddr, byte PowerDbm,int PortHandle);
	public native int ReadRfPower(byte[]comAddr, byte[] PowerDbm,int PortHandle);
	public native int RetryTimes(byte[]comAddr, byte[] Times,int PortHandle);
	public native int SetReadMode(byte[]comAddr, byte ReadMode,int PortHandle);
	public native int SetCheckAnt(byte[]comAddr, byte CheckAnt,int PortHandle);
	public native int GetSeriaNo(byte[]comAddr, byte[] SeriaNo,int PortHandle);
	public native int SetBeepNotification(byte[]comAddr, byte BeepEn,int PortHandle);
	public native int SetReal_timeClock(byte[]comAddr, byte[] paramer,int PortHandle);
	public native int GetTime(byte[]comAddr, byte[] paramer,int PortHandle);
	public native int SetDRM(byte[]comAddr, byte DRM,int PortHandle);
	public native int GetDRM(byte[]comAddr, byte[] DRM,int PortHandle);
	public native int GetReaderTemperature(byte[]comAddr, byte[] PlusMinus,byte[]Temperature,int PortHandle);
	public native int MeasureReturnLoss(byte[]comAddr, byte[] TestFreq,byte Ant,byte[]ReturnLoss,int PortHandle);
	public native int SetGPIO(byte[] comAddr, byte OutputPin, int PortHandle);
	public native int GetGPIOStatus(byte[] ComAdr, byte[] OutputPin, int PortHandle);
	public native int ReadActiveModeData(byte[] ScanModeData, int[] ValidDatalength, int PortHandle);
	public native int SetRelay(byte[] comAddr, byte RelayTime, int PortHandle);
	public native int SwitchProtocol(byte[] comAddr, byte[] protocol, int PortHandle);

	public native int Inventory_JB(byte[]comAddr,byte Algo,byte MaskMem,byte[]MaskAdr,byte MaskLen,
								   byte[]MaskData,byte MaskFlag, byte InAnt,byte Scantime,byte FastFlag,byte[]pEPCList,byte[] Ant,int[]Totallen,
								   int[]CardNum,int PortHandle);

	public native int InventoryMix_JB(byte[]comAddr,byte Algo,byte MaskMem,byte[]MaskAdr,byte MaskLen,
									  byte[]MaskData,byte MaskFlag,byte ReadMem,byte[]ReadAdr,byte ReadLen,byte[]Psd,
									  byte InAnt,byte Scantime,byte FastFlag,byte[]pEPCList,byte[] Ant,
									  int[]Totallen,int[]CardNum,int PortHandle);

	public native int ReadData_JB(byte[]comAddr,byte[] TagID,byte TNum,byte Mem,int WordPtr,byte WordNum,byte[]Password,
								  byte MaskMem,byte[]MaskAdr,byte MaskLen,byte[]MaskData,byte[]Data,int[]Errorcode,
								  int PortHandle);

	public native int WriteData_JB(byte[]comAddr,byte[] TagID,byte WNum,byte TNum,byte Mem,int WordPtr,byte[] Wdt,
								   byte[]Password,byte MaskMem,byte[]MaskAdr,byte MaskLen,byte[]MaskData,int[]Errorcode,
								   int PortHandle);
	public native int KillTag_JB(byte[]comAddr,byte[] TagID,byte TNum,byte[] Killpwd,byte MaskMem,byte[]MaskAdr,byte MaskLen,
								 byte[]MaskData,int[]Errorcode,int PortHandle);
	public native int Lock_JB(byte[]comAddr,byte[] EPC,byte TNum,byte LockMem,byte Cfg,byte Action,byte[] Password,byte MaskMem,
							  byte[]MaskAdr,byte MaskLen, byte[]MaskData,int[]Errorcode,int PortHandle);
	public native int BlockErase_JB(byte[]comAddr,byte[] EPC,byte TNum,byte Mem,int WordPtr,int Num,byte[] Password,
									byte MaskMem,byte[]MaskAdr,byte MaskLen, byte[]MaskData,int[]Errorcode,int PortHandle);


	public native int SetCfgParameter(byte[] comAddr, byte opt, byte cfgNum, byte[]data,int len, int FrmHandle);

	public native int GetCfgParameter (byte[] comAddr, byte cfgNum,byte[] data, int[] len, int FrmHandle);

	public native int SetProfile(byte[] comAddr, byte[] Profile, int FrmHandle);
	public native int SetExtProfile(byte[] comAddr,byte Opt, int[] Profile, int FrmHandle);

	public native int GetEx10Version(byte[] comAddr,byte[] Version, byte[] ex10Tpye, int FrmHandle);

	public static void main(String[] args) {
		// TODO Auto-generated method stub

	}

}