#!/bin/bash
# prefer running as root
DIR=$(dirname $0)
PROGRAM=/usr/local/bin/comfortable-swipe
CONF_PATH=/usr/local/share/comfortable-swipe/comfortable-swipe.conf
DCONF_PATH=$DIR/defaults.conf
OLD_CONF_PATH=${XDG_CONFIG_HOME:-$HOME/.config}/comfortable-swipe.conf

if [ -x "$(command -v $PROGRAM)" ]; then
    # stop any running comfortable-swipe if it exists
    $PROGRAM stop
fi

#copy config file
abort () {
    exec echo "Installation aborted"
}
sudo mkdir -p $(dirname $CONF_PATH) || abort
sudo chown $USER $(dirname $CONF_PATH)
if [ ! -f $CONF_PATH ]; then
    if [ ! -f $OLD_CONF_PATH ]; then
        # old config file not found, create from scratch
        cat $DCONF_PATH > $CONF_PATH || abort
    else
        # old config file found, move to the new path
        cat $OLD_CONF_PATH > $CONF_PATH || abort
        echo "Configuration copied from $OLD_CONF_PATH to $CONF_PATH"
    fi
else
    # config file found, ask user if overwrite
    echo "Old conf file found in $CONF_PATH"
    read -r -p "Keep the old conf file? (default: yes) [Y/n] " response
    response=${response,,} # tolower
    if [[ "$response" =~ ^(no|n)$ ]]; then
        read -r -p "Conf file will be overwritten. Are you sure? [Y/n] " response
        response=${response,,}
        if [[ "$response" =~ ^(yes|y)$ ]]; then
            cat $DCONF_PATH > $CONF_PATH || abort
        else
            abort
        fi
    fi
fi

echo "Installing..."

# remove existing comfortable-swipe
if [ -x "$(command -v $PROGRAM)" ]; then
    sudo rm -f $(which comfortable-swipe)
fi

# compile library
sudo $DIR/compile.sh $PROGRAM || abort

# add permissions to input group (defer)
# GROUP=$(ls -l /dev/input/event* | awk '{print $4}' | head --line=1) || abort

# toggle autostart twice to refresh any changes
$PROGRAM autostart > /dev/null || abort
$PROGRAM autostart > /dev/null || abort

echo "Successfully installed comfortable-swipe."
echo "Configuration file is located at $CONF_PATH"
echo ""
echo "Try running 'comfortable-swipe start' to test."