From e1bb96f519c0492319167700673313aa1f61595c Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Thu, 26 Jan 2017 14:09:16 +0000
Subject: dexcom_dumper: fix  EGVRecord JSON output when .is_special==True

---
 dexcom_reader/dexcom_dumper.py | 24 +++++++++++++++++-------
 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/dexcom_reader/dexcom_dumper.py b/dexcom_reader/dexcom_dumper.py
index c531dfc..8a0c0d6 100644
--- a/dexcom_reader/dexcom_dumper.py
+++ b/dexcom_reader/dexcom_dumper.py
@@ -2,13 +2,13 @@ import constants
 import readdata
 import sys
 import json
-import requests
-from pytz import UTC
+# import requests # As this takes SEVEN SECONDS, it's delayed until needed
 from sys import stdout, stderr
 from datetime import timedelta, datetime
 from time import sleep
 from itertools import islice, takewhile
-from database_records import GenericTimestampedRecord
+from database_records import GenericTimestampedRecord, EGVRecord
+# from pytz import UTC # Since the dependency is external, don't import unless needed
 
 from optparse import OptionParser
 
@@ -39,6 +39,8 @@ HOST = options.host
 
 if command is 'dump_cgm' and options.num_records is None and not options.hours:
         options.hours = 2
+if options.num_records <= 0:
+        options.num_records = None
 
 def get_dexcom_reader():
         if options.g5:
@@ -127,15 +129,17 @@ def sleep_verbose(n):
         sleep(n)
 
 def POST(path, json_str):
+        resp = None
         try:
+                import requests
                 resp = requests.post(HOST + path, data=json_str,
-                                     headers={'Content-type':
-                                              'application/json'})
-                print_verbose(resp.text)
+                                     headers={'Content-type': 'application/json'})
                 resp.raise_for_status()
                 return True
         except:
                 print_verbose(sys.exc_info())
+                if resp:
+                        print_verbose(resp.text)
                 return False
 
 def send_ping(now):
@@ -192,6 +196,7 @@ class JSON_Time(json.JSONEncoder):
     def default(self, o):
             if isinstance(o, datetime):
                         if o.tzinfo is None:
+                                from pytz import UTC
                                 return o.replace(tzinfo=UTC).isoformat()
                         else:
                                 return o.isoformat()
@@ -200,7 +205,12 @@ class JSON_Time(json.JSONEncoder):
 
 class JSON_CGM(JSON_Time):
     def default(self, o):
-            if isinstance(o, GenericTimestampedRecord):
+            if isinstance(o, EGVRecord) and o.is_special:
+                        op={}
+                        for k in o.BASE_FIELDS + ['glucose_special_meaning']:
+                                op[k] = getattr(o, k)
+                        return op
+            elif isinstance(o, GenericTimestampedRecord):
                         op={}
                         for k in o.BASE_FIELDS + o.FIELDS:
                                 op[k] = getattr(o, k)
-- 
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