#!/bin/bash
source ~/.mysql-grafana.conf


#PLUGINS="1wire ina219 433mhz"
PLUGINS="1wire ina219 433mhz"

# https://stackoverflow.com/a/1482133
SCRIPT_PATH=$(dirname -- "$( readlink -f -- "$0"; )";)


SOURCE=$(hostname -s)
for PLUGIN in ${PLUGINS}; do
  echo "Processing ${PLUGIN}..."
  
  PLUGIN_ENV=MUNIN_LIBDIR=${SCRIPT_PATH}
  PLUGIN_CONF="${SCRIPT_PATH}/conf.d/${PLUGIN}"
  if [ -f ${PLUGIN_CONF} ]; then
    while IFS="" read -r p || [ -n "$p" ]
    do
      #printf '%s\n' "$p"
      if [[ $p == env.* ]]; then 
        PARAM=${p##env.} # Match longest pattern from front -> everthing after the starting 'env.' 
        PARAM=${PARAM%% *} # Match longest pattern from back -> everything before the first ' '
        VALUE=${p#* } # Match shortest pattern from front -> everything after the first ' '
        PLUGIN_ENV+=" ${PARAM}=${VALUE}"
      fi
    done < ${PLUGIN_CONF}
  fi

  CMD="${PLUGIN_ENV} ${SCRIPT_PATH}/plugins/${PLUGIN}"
  #echo "${CMD}"
  DATA=$(eval $CMD)
  
  echo "-----------------"
  echo "$DATA"
  echo "-----------------"

  TABLE_NAME="home_${PLUGIN}" # default

  

  IFS=$'\n'; for LINE in ${DATA}; do
    # parse data and insert to database
    #echo $LINE

    SQL=$(echo $LINE | sed -E "s/(.*)\.(.*) (.*)/INSERT INTO ${TABLE_NAME} (source, metric, value) VALUES (\"${SOURCE}\",\"\1\", \"\3\");/")
    echo $SQL
    echo $SQL | mysql --host="192.168.0.12" --database="${DATABASE}" --user="${USER}" --password="${PASSWORD}"
 
    MQTT_OK=true
    case $PLUGIN in 
        "433mhz")
            LINE_ROOM=${LINE%%_*}
            LINE_TYPE=${LINE##*_}
            LINE_TYPE=${LINE_TYPE%%.value*}
            LINE_VALUE=${LINE##* }
            echo "${LINE_ROOM} ${LINE_TYPE} ${LINE_VALUE}"
        ;;
        *)
            MQTT_OK=false
        ;;
    esac
    
    case $LINE_TYPE in 
        "Luftfeuchte")
            TYPE="humidity"
        ;;
        "Temperatur")
            TYPE="temperature"
        ;;
        "Spannung")
            TYPE="voltage"
        ;;
        *)
            MQTT_OK=false
        ;;
    esac
    
    if [ $MQTT_OK = "true" ];
    then   
        MQTT="SENSOR_NAME=\"${LINE_TYPE}\" SENSOR_TYPE=\"${TYPE}\" DEVICE_NAME=\"${PLUGIN} ${LINE_ROOM}\" ${SCRIPT_PATH}/mqtt.sh ${LINE_VALUE}"
        echo "$MQTT"
        eval $MQTT
    fi
    
  done # LINE 

done # PLUGINS