#!/bin/bash
#
# shellcheck disable=SC1090,SC2220

ROON=/usr/local/Roon
ROONAPI=${ROON}/api
ROONETC=${ROON}/etc
ROONCONF=${ROONETC}/pyroonconf
SCRIPT="zone_group.py"

[ -f ${ROONAPI}/${SCRIPT} ] || {
    echo "Roon Command Line scripts not installed. Missing $ROONAPI/$SCRIPT"
    exit 1
}
cd ${ROONAPI} || exit 1

# Verify this is a valid zone grouping command
[ "$1" ] || {
    echo "No zone grouping command specified on command line. Exiting."
    exit 1
}
[ "$1" == "group" ] || [ "$1" == "ungroup" ] || {
    echo "Zone grouping command must be 'group' or 'ungroup'. Exiting."
    exit 1
}
ZONE_COMMAND="$1"

# Verify this is a valid zone group name
[ "$2" ] || {
    echo "No zone grouping specified on command line. Exiting."
    exit 1
}
ROON_ZONE_GROUP="Group_$2"
found_group=
for gn in $(grep ^Group_ "${ROONETC}"/roon_api.ini | awk -F '=' ' { print $1 } ')
do
    gn="$(echo -e "${gn}" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
    [ "$ROON_ZONE_GROUP" == "$gn" ] && found_group=1
done
[ "$found_group" ] || {
    echo "No matching zone grouping found. Exiting."
    exit 1
}

# Use a Python virtual environment
[ -f ${ROON}/venv/bin/activate ] && source ${ROON}/venv/bin/activate
[[ ":$PATH:" == *":/usr/local/Roon/venv/bin:"* ]] || {
  export PATH=/usr/local/Roon/venv/bin:${PATH}
}

if [ -f ${ROONCONF} ]
then
    . ${ROONCONF}
else
    DEFZONE=$(grep ^DefaultZone ${ROONETC}/roon_api.ini | awk -F '=' ' { print $2 } ')
    ${ROON}/bin/set_zone "${DEFZONE}"
    . ${ROONCONF}
fi

have_python3=$(type -p python3)
if [ "${have_python3}" ]
then
    python3 $SCRIPT -c "$ZONE_COMMAND" -z "$ROON_ZONE_GROUP"
else
    python $SCRIPT -c "$ZONE_COMMAND" -z "$ROON_ZONE_GROUP"
fi

exit 0