#!/usr/bin/env bash

datasource=$1
outputmode=$2
IFS=',' read -r -a outputargs <<< "$3" # IFS = Intenal field seperatior, special var
IFS=',' read -r -a opt_outputargs <<< "$4"

LOCALECASHE=$HOME/.cache/curl_weather

declare -A DISCRIPTOR_MAP
DISCRIPTOR_MAP["icon"]=""
DISCRIPTOR_MAP["temp"]=""
DISCRIPTOR_MAP["humidity"]=" "
DISCRIPTOR_MAP["rain"]=" "
DISCRIPTOR_MAP["wind"]=" "
DISCRIPTOR_MAP["pressure"]="󱤊 "
DISCRIPTOR_MAP["moon"]=""
DISCRIPTOR_MAP["uv"]="UVI "
SEPERATOR="\n"

# Docs: https://github.com/chubin/wttr.in
#
#    c    Weather condition,
#    C    Weather condition textual name,
#    x    Weather condition, plain-text symbol,
#    h    Humidity,
#    t    Temperature (Actual),
#    f    Temperature (Feels Like),
#    w    Wind,
#    l    Location,
#    m    Moon phase 🌑🌒🌓🌔🌕🌖🌗🌘,
#    M    Moon day,
#    p    Precipitation (mm/3 hours),
#    P    Pressure (hPa),
#    u    UV index (1-12),
#
#    D    Dawn*,
#    S    Sunrise*,
#    z    Zenith*,
#    s    Sunset*,
#    d    Dusk*,
#    T    Current time*,
#    Z    Local timezone.
#
#    (*times are shown in the local timezone)

#c, t, h, p, w, m
if [ "$datasource" = "local" ] && [ -f "$LOCALECASHE" ]; then
    data=($(cat $LOCALECASHE))
else
    data=$(curl -s 'wttr.in/Bremen?format="%c\n%t\n%h\n%p\n%w\n%u\n%P\n%m"')
    touch $LOCALECASHE
    echo $data > $LOCALECASHE
    data=($data)
fi

icon=$(echo ${data[0]} | tr -d "\"" )
temp=${data[1]}
humidity=${data[2]}
rain=${data[3]}
wind=${data[4]}
uv=${data[5]}
pressure=${data[6]}
moon=$(echo ${data[7]} | tr -d "\"")


function get_output_value() {
    # !var return the value of the variable which name is stored in vat
    # Pointer to value
    # if var=test and test = Hello worrld:
    # ${var} = test BUT ${!var} =Hello World
    local out=""
    local array=("${!1}")
    for element in "${array[@]}"; do
        out+="${DISCRIPTOR_MAP[$element]}${!element}${SEPERATOR}"
    done

    echo "${out::-${#SEPERATOR}}" # Remove last char
}


function waybar_json() {
    
    local text_value=$(get_output_value outputargs[@])
    local tooltip_value=$(get_output_value opt_outputargs[@])
    
    echo "{\"text\": \"$text_value\",
    \"tooltip\": \"$tooltip_value\",
    \"class\": \"weather\" }" | jq --unbuffered --compact-output
    #  \"alt\": \"$moon\r$humidity\",
}


if [ "$outputmode" == "waybar" ]; then
    echo $(waybar_json)
else 
    echo "Not implemented"
fi