#!/command/with-contenv bash
# shellcheck shell=bash disable=SC2015,SC2016,SC1091,SC2001

#---------------------------------------------------------------------------------------------
# Copyright (C) 2023-2024, Ramon F. Kolb (kx1t) and contributors
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with this program.
# If not, see <https://www.gnu.org/licenses/>.
#---------------------------------------------------------------------------------------------

source /scripts/common
source /scripts/interpret_ultrafeeder_config
s6wrap=(s6wrap --quiet --timestamps --prepend="$(basename "$0")" --args)

# Check if ADSBExchange is configured
if ! grep -i adsbexchange.com <<< "$ULTRAFEEDER_CONFIG" >/dev/null 2>&1; then
    "${s6wrap[@]}" echo "AdsbExchange not configured - no stats package needed"
    exec sleep infinity
fi

# Check if ADSBExchange stats are disabled
if chk_disabled "$ADSBX_STATS" ; then
    "${s6wrap[@]}" echo "AdsbExchange stats disabled"
    exec sleep infinity
fi

# prep work:
mkdir -p /run/adsbexchange-stats

# Install the Stats package:
if [[ ! -f /etc/default/adsbexchange-stats ]]; then
    echo -e "UUID_FILE=/run/uuid\nJSON_PATHS=(\"/run/readsb\")" > /etc/default/adsbexchange-stats
fi
if [[ ! -f /usr/local/bin/json-status ]]; then
    if ! curl -sSL -o /usr/local/bin/json-status https://raw.githubusercontent.com/sdr-enthusiasts/docker-adsb-ultrafeeder/main/downloads/adsbexchange-json-status; then
        "${s6wrap[@]}" echo "ERROR: AdsbExchange configured, but cannot download stats package! AdsbExchange will be fed but stats will not be available"
        exec sleep infinity
    fi
    chmod 755 /usr/local/bin/json-status
fi

# set the UUID:
if [[ ! -f /usr/local/share/adsbexchange/adsbx-uuid ]]; then
    # get UUID from ULTRAFEEDER_CONFIG if it exists
    for entry in "${READSB_CONF_ARR[@]}"; do
        if echo "$entry" | grep -q 'adsbexchange.*uuid'; then
            ADSBX_UUID="$(sed  's|.*adsbexchange.*uuid=\([a-f0-9-]\+\).*|\1|g' <<< "$entry")"
        fi
    done
    ADSBX_UUID="${ADSBX_UUID:-${UUID}}" || true # ...else get it from the UUID param
    ADSBX_UUID="${ADSBX_UUID:-$(cat /proc/sys/kernel/random/uuid 2>/dev/null)}" || true # ...else generate a random one
    if [[ -n "$ADSBX_UUID" ]]; then
        mkdir -p /usr/local/share/adsbexchange
        echo "$ADSBX_UUID" > /usr/local/share/adsbexchange/adsbx-uuid
        "${s6wrap[@]}" echo "Using UUID $ADSBX_UUID for AdsbExchange"
    else
        "${s6wrap[@]}" echo "WARNING: no UUID can be identified to be used with AdsbExchange; a random one will be generated every time the container is started."
    fi
fi

# wait until readsb is established...
if ! pgrep readsb >/dev/null; then
    if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
        "${s6wrap[@]}" echo "Delaying start of the AdsbExchange Stats module until container is established..."
    fi
    while ! pgrep readsb >/dev/null
        do
        sleep 2 & wait $!
    done
    # wait 2 seconds after readsb process exists
    sleep 2 & wait $!
fi

# Let json-status start up, and then print the Anywhere Map and Anywhere Stats URLs to the container logs:
{   sleep 15
    AnywhereMap="$(curl -sSL https://www.adsbexchange.com/myip/ | grep "ADSBx Anywhere Map</a>" | sed -n 's|.*\(https.*\)\" class.*|\1|p')"
    AnywhereStats="$(curl -sSL https://www.adsbexchange.com/myip/ | grep "ADSBx Anywhere Stats</a>" | sed -n 's|.*\(https.*\)\" class.*|\1|p')"
    "${s6wrap[@]}" echo "Your AdsbExchange Anywhere Map URL is $AnywhereMap"
    "${s6wrap[@]}" echo "Your AdsbExchange Anywhere Stats URL is $AnywhereStats"
} &

"${s6wrap[@]}" echo "invoking: /usr/local/bin/json-status"
exec "${s6wrap[@]}" /usr/local/bin/json-status