#!/bin/bash
# prefer running as root
if [ $(id -u) != "0" ]; then
    sudo bash "$0" "$@"
    exit $?
fi
echo "Install $(date)" >> .log
DIR=$(dirname $0)
PROGRAM=/usr/local/bin/comfortable-swipe
CONF_PATH=/usr/local/share/comfortable-swipe.conf
OLD_CONF_PATH=${XDG_CONFIG_HOME:-$HOME/.config}/comfortable-swipe.conf
DCONF_PATH=$DIR/src/defaults.conf

if [ -x "$(command -v $PROGRAM)" ]; then
    # stop any running comfortable-swipe if it exists
    systemctl stop comfortable-swipe.service >> .log 2>> .log
    systemctl disable comfortable-swipe.service >> .log 2>> .log
fi

mkdir -p $(dirname $CONF_PATH)

# copy config file
if [ ! -f $CONF_PATH ]; then
    if [ ! -f $OLD_CONF_PATH ]; then
        # old config file not found, create from scratch
        cp -a $DCONF_PATH $(dirname $CONF_PATH) >> .log 2>> .log
    else
        # old config file found, move to the new path
        echo "Configuration copied from $OLD_CONF_PATH to $CONF_PATH"
        cp -a $OLD_CONF_PATH $(dirname $CONF_PATH) >> .log 2>> .log
    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
            cp -a $DCONF_PATH $(dirname $CONF_PATH) >> .log 2>> .log
        else
            echo "Installation aborted." >> .log
            exec echo "Installation aborted."
        fi
    fi
fi

# install with g++
echo "Installing..."
echo "
Install $(date)" >> .log
echo "Running g++" >> .log
g++ -std=c++11 -O2 $DIR/src/comfortable-swipe.cpp -lxdo -o $PROGRAM >> .log 2>> .log || exec echo "Installation aborted"

# add as service
SERVICE_PATH="/lib/systemd/system/comfortable-swipe.service"

echo "[Unit]
Description=Comfortable 3 or 4 finger gestures
After=display-manager.service

[Service]
Environment=DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY
ExecStart=$PROGRAM exec
Restart=always
RestartSec=2

[Install]
WantedBy=multi-user.target" \
> $SERVICE_PATH

# run immediately
systemctl daemon-reload >> .log 2>> .log
systemctl enable comfortable-swipe.service >> .log 2>> .log
systemctl start comfortable-swipe.service >> .log 2>> .log
echo "Installation successful" >> .log

# prvide success message
echo ""
echo "Successfully installed comfortable-swipe. Try swiping and see if it works."
echo "Configuration file is located at $CONF_PATH"

echo ""
echo "[Report bugs to https://github.com/Hikari9/comfortable-swipe-ubuntu/issues/new]"
echo ""