From f29e10cb3b1aa6d7d767053340c0967cc41ffcce Mon Sep 17 00:00:00 2001
From: loradar <56890699+loradar@users.noreply.github.com>
Date: Thu, 11 Jun 2020 17:26:25 +1000
Subject: [PATCH] Create LogReader.py

---
 .../LogReader.py                              | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Configuration 3 (Kerlink Wirnet Station)/LogReader.py

diff --git a/Configuration 3 (Kerlink Wirnet Station)/LogReader.py b/Configuration 3 (Kerlink Wirnet Station)/LogReader.py
new file mode 100644
index 0000000..5bb12cd
--- /dev/null
+++ b/Configuration 3 (Kerlink Wirnet Station)/LogReader.py	
@@ -0,0 +1,70 @@
+#Please update 'GatewayID' to unique ID of the LoRa gateway
+GatewayID='0'
+import csv
+from base64 import b64decode
+from textwrap import wrap
+import os
+import glob
+NumFiles = len(glob.glob1('',"*.log'"))
+for numberrand in range(NumFiles):
+    #print(numberrand)
+    qwe=str(numberrand)
+    filename="'LoRaMacServer ("+qwe+").log'"
+    if numberrand==0:
+        filename="'LoRaMacServer.log'"
+    f = open(filename)
+    i=0
+    for each in f:
+        each=each.split(' ')
+        if len(each)>7 and each[7]=="JSON" and each[10][2:6]=="rxpk":
+            i+=1
+            month=['te','Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']
+            UTC_timestamp=each[6][:-1]+"-"+str(month.index(each[5]))+"-"+each[4]+" "+each[0]+"."+each[2]
+            data=each[10][10:-5].split(",")    
+            for item in range(len(data)):
+                data[item]=data[item].split(":")
+            for item,value in data:
+                if item=='"tmst"':
+                    us_count=value
+                elif item=='"chan"':
+                    RX_chain=value
+                elif item=='"rfch"':
+                    RF_chain=value
+                elif item=='"freq"':
+                    frequency=str(float(value)*1000000)
+                elif item=='"stat"':
+                    status=["CRC_BAD","CRC_OK"][int(value)]
+                elif item=='"modu"':
+                    modulation=value[1:-1]
+                elif item=='"datr"':
+                    tempdr=value[1:-1]
+                    tempdr2=tempdr.find('BW')
+                    datarate=tempdr[:tempdr2]
+                    bandwidth=tempdr[tempdr2+2:]+"000"
+                elif item=='"codr"':
+                    coderate=value[1:-1]  #there might be a problem here
+                elif item=='"lsnr"':
+                    SNR=value
+                elif item=='"rssi"':
+                    RSSI=value
+                elif item=='"size"':
+                    size=value
+                elif item=='"data"':
+                    pdataa=value[1:]
+                    pdataa="aaaa"+pdataa
+                    pdataaa=(str(hex(int.from_bytes(b64decode(pdataa), 'big')))[2:]).upper()
+                    pdata='-'.join(wrap(pdataaa[6:], 8)) 
+            with open(r'data.csv', 'a', newline='') as csvfile:
+                fieldnames = ['gateway ID','node MAC','UTC timestamp','us count','frequency','RF chain','RX chain','status','size','modulation','bandwidth','datarate','coderate','RSSI','SNR','payload']
+                writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
+                writer.writerow({'gateway ID':GatewayID,'node MAC':'0','UTC timestamp':UTC_timestamp,'us count':us_count,'frequency':frequency,'RF chain':RF_chain,'RX chain':RX_chain,'status':status,'size':size,'modulation':modulation,'bandwidth':bandwidth,'datarate':datarate,'coderate':coderate,'RSSI':RSSI,'SNR':SNR,'payload':pdata})
+from more_itertools import unique_everseen
+with open('data.csv','r') as f, open('Packets.csv','w') as out_file:
+    out_file.writelines(unique_everseen(f))
+os.remove("data.csv")
+with open('Packets.csv','r') as contents:
+      save = contents.read()
+with open('Packets.csv','w') as contents:
+      contents.write('gateway ID,node MAC,UTC timestamp,us count,frequency,RF chain,RX chain,status,size,modulation,bandwidth,datarate,coderate,RSSI,SNR,payload'+'\n')
+with open('Packets.csv','a') as contents:
+      contents.write(save)