meteo1.script

#!/bin/bash
shopt -s extglob

# options
# -C, --city		Location city
# -r, --windchill	Wind chill
# -D, --winddir		Wind direction (degrees)
# -w, --windcomp	Wind direction (compass)
# -W, --windspeed	Wind speed
# -f, --feelslike   Felt temperature
# -H, --humidity	Atmosphere humidity
# -V, --visibiliy	Visibility
# -p, --pressure	Pressure
# -T, --text		Current condition text
# -i, --icon		Current condition icon
# -F, --font		Current condition weather font

# -t, --temp		Current temperature
# --day=n forecast 
#	where n can be 0,1,2,3 
#	and forecast can be
#		day			weekly day
#		date		day date
#		low			lowest temperature
#		high		highest temperature
#		code		forecast code
#		text		forecast text
#		font		forecast weather font
#		

key=04dd9a3c9e0eeea2
location='ch/lausanne' #Losanna
#location='IT/alessano' # Corsano
#location='ITALY/sesto%20san%20giovanni' # Sesto San Giovanni
#location='ITALY/Ferrara'
#location='AT/Villach'
lang=IT

temp_dir=/tmp
temp_file_name=${location/\//_}
temp_file="$temp_dir"/"$temp_file_name"

url=http://api.wunderground.com/api/"$key"/conditions/lang:"$lang"/q/"$location".json

#url_10=http://api.wunderground.com/api/"$key"/forecast10day/onditions/q/"$location".json


#url='http://api.wunderground.com/api/92b68ee08d6be2ed/conditions/lang:IT/q/Italy/Sesto%20San%20Giovanni.json'



find  "$temp_dir" -maxdepth 0 -name "$temp_file_name" -mmin -10  | egrep '.*' > /dev/null 			

# Test if temp has been modified more than 10 minutes ago. 
# This is in order to avoid multiple download of the same file  if more 
# data are requested.
# | egrep '.*' serves the purpose to have an exit status not equal to 0 
# when find has no match (it's an ugly hack, I know).

if [[ $? -ne 0 ]]; then
	wget "$url" -O "$temp_file" -o /dev/null
fi



function Weather_Font {
 case $1 in
	@(*snow|*flurries)				)		#snow
	echo "r"
	shift
	;;
	*rain*							)		#rain
	echo "j"
	shift
	;;
	*storms*						)		#tstorms
	echo "l"
	shift
	;;
	?(n)?(t)?(_)cloudy				)		#cloudy
	echo "e"
	shift
	;;
	nt_mostlycloudy					)		#mostly cloudy (night)
	echo "D"
	shift
	;;
	mostlycloudy					)		#mostly cloudy (day)
	echo "d"
	shift
	;;
	nt_partlycloudy|nt_mostlysunny	)		#partly cloudy (night)
	echo "C"
	shift
	;;
	partlycloudy|mostlysunny		)		#partly cloudy (day)
	echo "c"
	shift
	;;
	@(*hazy|*fog)					)		#foggy
	echo "0"
	shift
	;;
	nt_sunny						)		#sunny (night....moony????)
	echo "A"
	shift
	;;
	sunny							)		#sunny
	echo "a"
	shift
	;;
	nt_clear						)		#clear (night)
	echo "B"
	shift
	;;
	clear							)		#clear (day)
	echo "b"
	shift	
	;;
	*sleet							)		#sleet
	shift
	;;
 esac
}


function Location_City {
	jq -r '.current_observation.display_location.city' "$temp_file"
}

function Wind_Chill {
	jq -r '.current_observation.windchill_c' "$temp_file"
}

function Wind_Direction_Degrees {
	jq -r '.current_observation.wind_degrees' "$temp_file"
}

function Wind_Direction_Compass {
	jq -r '.current_observation.wind_dir' "$temp_file"
}

function Wind_Speed {
	jq -r '.current_observation.wind_kph' "$temp_file"
}

function Feel_Like {
	jq -r '.current_observation.feelslike_c' "$temp_file"
}

function Humidity {
	jq -r '.current_observation.relative_humidity' "$temp_file"
}

function Visibility {
	jq -r '.current_observation.visibility_km' "$temp_file"
}

function Pressure {
	jq -r '.current_observation.pressure_mb' "$temp_file"
}

function Current_Condition_Text {
	jq -r '.current_observation.weather' "$temp_file"
}

function Current_Condition_Icon {
	jq -r '.current_observation.icon' "$temp_file"
}

function Current_Temperature {
	jq -r '.current_observation.temp_c' "$temp_file"
}

function Current_Icon {
	jq -r '.current_observation.icon' "$temp_file"
}

function Day_n_Day {
	row=$((44+$1))
	awk  -F"\042" 'NR=='''$row''' {print $2}' "$temp_file"
}

function Day_n_Date {
	row=$((44+$1))
	awk  -F"\042" 'NR=='''$row''' {print $4}' "$temp_file"
}

function Day_n_Low {
	row=$((44+$1))
	awk  -F"\042" 'NR=='''$row''' {print $6}' "$temp_file"
}

function Day_n_High {
	row=$((44+$1))
	awk  -F"\042" 'NR=='''$row''' {print $8}' "$temp_file"
}

function Day_n_Condition_Text {
	row=$((44+$1))
	awk  -F"\042" 'NR=='''$row''' {print $10}' "$temp_file"
}

function Day_n_Condition_Code {
	row=$((44+$1))
	awk  -F"\042" 'NR=='''$row''' {print $12}' "$temp_file"
}


case "$1" in
	-C|--city)
    Location_City
    shift
    ;;
    -r|--windchill)
    Wind_Chill
    shift
    ;;
    -D|--winddir)
    Wind_Direction_Degrees
    shift
    ;;
    -w|--windcomp)
    Wind_Direction_Compass
    shift
    ;;
    -W|--windspeed)
    Wind_Speed
    shift
    ;;
    -f|--feelslike)
    Feel_Like
    shift
    ;;
    -H|--humidity)
    Humidity
    shift
    ;;
    -V|--visibility)
    Visibility
    shift
    ;;
    -p|--pressure)
    Pressure
    shift
    ;;
    -T|--text)
    Current_Condition_Text
    shift
    ;;
    -i|--icon)
    Current_Condition_Icon
    shift
    ;;
    -F|--font)
    Weather_Font "$(Current_Icon)"
    shift
    ;;
    -t|--temp)
    Current_Temperature
    shift
    ;;
    -a|--sunrise)
    Sunrise
    shift
    ;;
    -z|--sunset)
    Sunset
    shift
    ;;
    --day=*)
		n=$(echo "$1" | sed 's/[^0-9]//g')
		forecast="$2"
		case "$forecast" in
		 day)			#weekly day
		 Day_n_Day $n
		 shift
		 ;;
		 date)			#date day
		 Day_n_Date $n
		 shift
		 ;;
		 low)			#low temperature
		 Day_n_Low $n
		 shift
		 ;;
		 high)			#high temperature
		 Day_n_High $n
		 shift
		 ;;
		 code)			#forecast code
		 Day_n_Condition_Code $n
		 shift
		 ;;
		 text)			#forecast text
		 Day_n_Condition_text $n
		 shift
		 ;;
		 font)			#forecast weather font
		 Weather_Font "$(Day_n_Condition_Code $n)"
		 shift
		 ;;
	     *)
         # unknown option
		 ;;
		esac

#		code		forecast code
#		cond		forecast text
#		font		forecast weather fontWeather_Font
		
	shift
	;;
    *)
            # unknown option
    ;;
esac


# -t, --temp		Current temperature
# -a, --sunrise		Astronomy sunrise
# -z, --sunset		Astronomy sunset