#!/bin/bash

# server version, calls server for actual API info
WORKING_DIR="$HOME/.local/share/weather"
KEY_FILE="$WORKING_DIR/.env"

# set $API_KEY

if [[ ! -e "$KEY_FILE" ]] ; then
    echo "No API key found!"
    exit 1
fi

source "$KEY_FILE"

lookup_location() {
    # search for a location
    url="http://api.openweathermap.org/geo/1.0/direct?q=$SEARCH&appid=$API_KEY&limit=5"
    res=$(curl --silent -fL "$url")
    echo "$res"
}

lookup_zipcode() {
    # lookup based on zipcode
    url="http://api.openweathermap.org/geo/1.0/zip?zip=$ZIPCODE&appid=$API_KEY&limit=5"
    res=$(curl --silent -fL "$url")
    echo "$res"
}

get_weather() {
    # calls server for weather based on $COORDS
    LAT=$(echo "$COORDS" | awk -F , '{print $1}')
    LON=$(echo "$COORDS" | awk -F , '{print $2}')
    
    url="https://api.openweathermap.org/data/2.5/weather?lat=$LAT&lon=$LON&appid=$API_KEY&units=$UNITS"
    res=$(curl --silent -fL "$url")
    echo "$res"
}

while getopts "c:s:z:u:" opt; do
    case "$opt" in
        'c' )
            COORDS="$OPTARG"
            ;;
        's' )
            SEARCH="$OPTARG"
            ;;
        'z' )
            ZIPCODE="$OPTARG"
            ;;
        'u' )
            UNITS="$OPTARG"
            ;;
        '?' )
            echo "ERROR: UNRECOGNZIED ARGUMENT"
            exit 1
            ;;
    esac
done

if [[ -n "$COORDS" ]] ; then
    get_weather
elif [[ -n "$SEARCH" ]] ; then
    lookup_location
elif [[ -n "$ZIPCODE" ]] ; then
    lookup_zipcode
fi

exit 0