package dell55AAData;

import java.util.Arrays;

import dell_system.MessageViewPanel;
import dell_targets.Dell_BaseStation;
import dell_targets.Dell_tag;
import publicsWay.EfficientTimeFormatter;

public class Dell55AA01Parser {
	// ³£Á¿¶¨Òå
	private static final String EXPECTED_HEADER = "55AA01"; // ЭÒéÍ·
	private static final int MIN_LENGTH = 42; // ×îС³¤¶È(21×Ö½Ú*2×Ö·û)
	private static final ThreadLocal<ParseResult> RESULT_CACHE = 
			ThreadLocal.withInitial(ParseResult::new);

	// ½âÎö½á¹ûÀà
	public static class ParseResult {
		public int sequenceNum;   // ÐòÁкÅ
		public String tagId;      // ±êÇ©ID(4×Ö½ÚС¶ËÐò)
		public String anchorId;   // êµãID(4×Ö½ÚС¶ËÐò)
		public int distance;      // ¾àÀë(ºÁÃ×)
		public int power;         // µçÁ¿(0-100)
		public int buttonPressed; // °´Å¥×´Ì¬

		public void reset() {
			sequenceNum = 0;
			tagId = "";
			anchorId = "";
			distance = 0;
			power = 0;
			buttonPressed = 0;
		}
	}

	/**
	 * ½âÎö55AA01ЭÒéÊý¾Ý
	 * @param message Ê®Áù½øÖÆ×Ö·û´®
	 * @return ½âÎö½á¹û(´íÎóʱ·µ»Ønull)
	 */
	public static ParseResult parse(String message, String ip, int port) {
	    if (message == null || message.isEmpty()) {
	        return null;
	    }

	    // ÇåÏ´Êý¾Ý£ºÒƳýËùÓзÇÊ®Áù½øÖÆ×Ö·û
	    char[] cleanedMessage = cleanMessage(message);

	    // Êý¾ÝУÑé
	    if (cleanedMessage == null || cleanedMessage.length < MIN_LENGTH) {
	        return null;
	    }

	    // ЭÒéͷУÑé (55AA01)
	    if (!new String(cleanedMessage, 0, 6).equals(EXPECTED_HEADER)) {
	        return null;
	    }

	    ParseResult result = RESULT_CACHE.get();
	    result.reset();

	    try {
	        if (cleanedMessage.length < 30) { // È·±£ÓÐ×ã¹»³¤¶È·ÃÎÊcharAt(28)
	            return null;
	        }

	        // ½âÎöÐòÁкŠ(λÖÃ8-9)
	        result.sequenceNum = HexUtils.fastHexToByte(cleanedMessage[8], cleanedMessage[9]);

	        // ½âÎö±êÇ©ID (λÖÃ10-13, С¶ËÐò)
	        result.tagId = new String(new char[]{
	                cleanedMessage[12], cleanedMessage[13], // ¸ßλ
	                cleanedMessage[10], cleanedMessage[11]  // µÍλ
	        });

	        // ½âÎöêµãID (λÖÃ14-17, С¶ËÐò)
	        result.anchorId = new String(new char[]{
	                cleanedMessage[16], cleanedMessage[17], // ¸ßλ
	                cleanedMessage[14], cleanedMessage[15]  // µÍλ
	        });

	        // ½âÎö¾àÀë (λÖÃ18-25, 4×Ö½ÚС¶ËÕûÊý)
	        int b0 = HexUtils.fastHexToByte(cleanedMessage[18], cleanedMessage[19]); // ×îµÍλ
	        int b1 = HexUtils.fastHexToByte(cleanedMessage[20], cleanedMessage[21]);
	        int b2 = HexUtils.fastHexToByte(cleanedMessage[22], cleanedMessage[23]);
	        int b3 = HexUtils.fastHexToByte(cleanedMessage[24], cleanedMessage[25]); // ×î¸ßλ
	        int raw = (b3 << 24) | (b2 << 16) | (b1 << 8) | b0;
	        result.distance = raw; // ±£³ÖԭʼÕûÊýÖµ

	        // ½âÎöµçÁ¿ (λÖÃ26-27)
	        result.power = HexUtils.fastHexToByte(cleanedMessage[26], cleanedMessage[27]);

	        // ½âÎö°´Å¥×´Ì¬ (λÖÃ28-29)
	        result.buttonPressed = HexUtils.fastHexToByte(cleanedMessage[28], cleanedMessage[29]);

	        // ÈÕÖ¾ºÍ¸üвÙ×÷¿ÉÒÔ¿¼ÂÇÓÅ»¯»ò¼õÉÙµ÷ÓÃƵÂÊ
	        String hexData = "55AA01 °üÐò:" + result.sequenceNum + ",±êÇ©±àºÅ:" + result.tagId + ",»ùÕ¾±àºÅ:" + result.anchorId +
	                ",¾àÀë:" + result.distance + ",µçÁ¿:" + result.power +
	                ",°´Å¥×´Ì¬:" + result.buttonPressed;
	        MessageViewPanel.showData(hexData, ip, port, 0, "UDPA", "55AA01", "ALL");

	        String time = EfficientTimeFormatter.getCurrentTimeFormatted();
	        Dell_BaseStation.updateBaseStationProperty(result.anchorId, "ipAddress", ip);
	        Dell_BaseStation.updateBaseStationProperty(result.anchorId, "port", port + "");
	        Dell_BaseStation.updateBaseStationProperty(result.anchorId, "status", "1");
	        Dell_BaseStation.updateBaseStationProperty(result.anchorId, "onlineTime", time);

	        Dell_tag.updateLocationTagProperty(result.tagId, "sosStatus", result.buttonPressed + "");
	        Dell_tag.updateLocationTagProperty(result.tagId, "onlineStatus", "1");
	        Dell_tag.updateLocationTagProperty(result.tagId, "lastUwbSignalTime", time);
	        Dell_tag.updateLocationTagProperty(result.tagId, "latestRangingSeq", result.sequenceNum + "");
	        Dell_tag.updateLocationTagProperty(result.tagId, "latestRangingBaseId", result.anchorId);
	        Dell_tag.updateLocationTagProperty(result.tagId, "latestRangingDistance", result.distance + "");
	        Dell_tag.updateLocationTagProperty(result.tagId, "latestRangingBaseCount", "1");

	    } catch (IndexOutOfBoundsException | NumberFormatException e) {
	        System.err.println("Parsing error in packet from " + ip + ":" + port);
	        return null;
	    }

	    return result;
	}

	private static char[] cleanMessage(String message) {
	    char[] cleaned = new char[message.length()];
	    int j = 0;
	    for (char c : message.toCharArray()) {
	        if (Character.isDigit(c) || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f')) {
	            cleaned[j++] = Character.toUpperCase(c);
	        }
	    }
	    if (j == 0) return null;
	    return Arrays.copyOf(cleaned, j);
	}

	public static void updateBase(String baseStationId, String propertyName, String value) {
		Dell_BaseStation.updateBaseStationProperty(baseStationId, propertyName, value);
		Dell_BaseStation.updateBaseStationProperty(baseStationId, propertyName, value);
	}
}