package com.zy.core.utils;

import com.zy.asrs.entity.DeviceDataLog;
import com.zy.core.enums.RedisKeyType;
import com.zy.core.enums.SlaveType;

public class DeviceLogRedisKeyBuilder {

    public static String build(DeviceDataLog deviceDataLog) {
        String type = deviceDataLog == null || deviceDataLog.getType() == null
                ? "unknown"
                : deviceDataLog.getType();
        String deviceNo = deviceDataLog == null || deviceDataLog.getDeviceNo() == null
                ? "unknown"
                : String.valueOf(deviceDataLog.getDeviceNo());
        String stationPart = buildStationPart(deviceDataLog, type);
        // 日志发布器按 lane 只保留最新快照，Redis key 必须稳定，否则会把每次采样都堆成独立 key，
        // 让 DeviceLogScheduler 的消费速度永远追不上写入速度，最终把 Redis 内存打爆。
        return RedisKeyType.DEVICE_LOG_KEY.key + type + ":" + deviceNo + stationPart;
    }

    private static String buildStationPart(DeviceDataLog deviceDataLog, String type) {
        if (!String.valueOf(SlaveType.Devp).equals(type)) {
            return "";
        }
        Integer stationId = deviceDataLog == null ? null : deviceDataLog.getStationId();
        return stationId == null ? ":station:unknown" : ":station:" + stationId;
    }
}