#!/bin/bash
# This script pushes the current time to the API's remote management
# to track last connected time

STATUS_FILE="/var/config/devicehq/status.json"
DHQ_DIR="/var/config/devicehq"

LAST_CONNECTED=$(date +%m/%d/%Y/%H:%M:%S)
INTERVAL=""

# Reset in case getopts has been used previously in the shell.
OPTIND=1

function show_help() {
  echo "Usage: $0 -t <TIME OF CONNECTION> -i <INTERVAL SECONDS>"
}

while getopts "h?t:i:" opt; do
    case "$opt" in
    h|\?)
        show_help
        exit 0
        ;;
    t)  LAST_CONNECTED=$OPTARG
        ;;
    i)  INTERVAL=$OPTARG
        ;;
    esac
done

shift $((OPTIND-1))
[ "$1" = "--" ] && shift

if [ ! -f $STATUS_FILE ]; then
    mkdir -p $DHQ_DIR
    echo "{
  \"status\": \"unknown\",
  \"lastConnected\": \"unknown\",
  \"intervalSeconds\": \"10\"
}" > $STATUS_FILE
fi


sed -i "s~\"lastConnected\"\s*:\s*\".*\"~\"lastConnected\": \"$LAST_CONNECTED\"~" $STATUS_FILE

if [ $? != 0 ]; then
  logger -t push_api_mdm_connected "Failed to save lastConnected [$LAST_CONNECTED] to $STATUS_FILE"
fi


if [ "$INTERVAL" != "" ]; then
  sed -i "s/\"intervalSeconds\"\s*:\s*\".*\"/\"intervalSeconds\": \"$INTERVAL\"/" $STATUS_FILE

  if [ $? != 0 ]; then
    logger -t push_api_mdm_connected "Failed to save intervalSeconds [$INTERVAL] to $STATUS_FILE"
  fi
fi