#!/usr/bin/env bash

command -v jq >/dev/null 2>&1 || { echo >&2 "Program 'jq' required but it is not installed.  Aborting."; exit 1; }
command -v wget >/dev/null 2>&1 || { echo >&2 "Program 'wget' required but is not installed.  Aborting."; exit 1; }

APIKEY="99e2d54517287c6de1e9db99db2fdc84"
CITY_ID="644450" # customise this for your city
URL="http://api.openweathermap.org/data/2.5/weather?id=${CITY_ID}&units=metric&APPID=${APIKEY}"

WEATHER_RESPONSE=$(wget -qO- "${URL}")

WEATHER_CONDITION=$(echo $WEATHER_RESPONSE | jq '.weather[0].main' | sed 's/"//g')
WEATHER_TEMP=$(echo $WEATHER_RESPONSE | jq '.main.temp')
WIND_DIR=$( echo "$WEATHER_RESPONSE" | jq '.wind.deg')
WIND_SPEED=$( echo "$WEATHER_RESPONSE" | jq '.wind.speed')

#WIND_SPEED=$(awk "BEGIN {print 60*60*$WIND_SPEED/1000}")
WIND_SPEED=$(awk "BEGIN {print $WIND_SPEED}")
WIND_DIR=$(awk "BEGIN {print int(($WIND_DIR % 360)/22.5)}")
DIR_ARRAY=( N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW N )
WIND_DIR=${DIR_ARRAY[WIND_DIR]}

case $WEATHER_CONDITION in
  'Clouds')
    WEATHER_ICON=""
    ;;
  'Rain')
    WEATHER_ICON=""
    ;;
  'Snow')
    WEATHER_ICON=""
    ;;
  *)
    WEATHER_ICON=""
    ;;
esac

echo " ${WEATHER_ICON} ${WEATHER_CONDITION} ${WEATHER_TEMP}°C ${WIND_SPEED} m/s "
#echo "${WEATHER_ICON} ${WEATHER_CONDITION}: ${WEATHER_TEMP}°C: ${WIND_SPEED} m/s ${WIND_DIR} "