#! /bin/bash

# Script to extract Huawei watch sleep time from Apple Health full export
# into a csv file

cat export.xml | 
  grep -e 202[4567]- |
  grep 'type="HKCategoryTypeIdentifierSleepAnalysis" sourceName="HUAWEI Health' |
  egrep -o 'startDate[^ ]+ [^ ]+ [^ ]+ [^ ]+ [^ ]+ [^ ]+ ' |
  while read line
  do
    START=`echo $line | cut -d\" -f2`
    END=`echo $line | cut -d\" -f4`
    START_TS=`date --date="$START" +"%s"`
    END_TS=`date --date="$END" +"%s"`
    TIME=`expr $END_TS - $START_TS`
    DATE=`echo $START | cut -d\  -f1`
    echo $DATE $TIME
  done | 
  awk '{ sleep[$1]=sleep[$1]+$2 } END { for (date in sleep) { print date "," sleep[date] / 60} }' |
  sort >sleep-mins.csv