#!/bin/sh

icon="#"

current_wifi=$(iwgetid -r)
if { [ "$current_wifi" = "WIFIonICE" ] || [ "$current_wifi" = "WIFI@DB" ]; }; then
    # Obtain route info. Bail out if it cannot be obtained or if the response
    # is not valid JSON (based on jq's exit code).
    if ! { wifionice=$(curl -sf https://iceportal.de/api1/rs/status); } then
        echo "$icon In-train portal unreachable"
        exit 0
    fi
    if ! { echo "$wifionice" | jq --exit-status > /dev/null 2>&1; } then
        echo "$icon In-train portal unreachable"
        exit 0
    fi

    if [ "$(echo "$wifionice" | jq .connection)" = "true" ]; then
        wifionice_speed=$(echo "$wifionice" | jq .speed)
        if [ "$(echo "${wifionice_speed} != 0" | bc)" -eq 1 ]; then
            wifionice_speed=" - $wifionice_speed km/h"
        else
            wifionice_speed=""
        fi

        station=$(curl -sf https://iceportal.de/api1/rs/tripInfo/trip | jq '[.[].stops[]? | select(.info.passed == false)][0]')

        station_name=$(echo "$station" | jq -r '.station.name')

        station_track=$(echo "$station" | jq -r '.track.actual')

        station_arrival=$(echo "$station" | jq -r '.timetable.scheduledArrivalTime')
        station_arrival=$(date --date="@$((station_arrival / 1000))" +%H:%M)

        station_delay=$(echo "$station" | jq -r '.timetable.arrivalDelay')
        if [ -n "$station_delay" ]; then
            station_delay=" %{F#d60606}($station_delay)%{F-}"
        else
            station_delay=""
        fi

        echo "$icon $station_arrival$station_delay - $station_name, Gl. $station_track$wifionice_speed"
    fi
else
    echo ""
fi
