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#!/bin/bash

BOLD='\033[1m'
ENDC='\033[0m'
RED='\033[0;31m'
BOLD_RED='\033[1;31m'

echo -e "hbkcd Install Script\n"

if [[ $EUID -ne 0 ]]; then
echo -e "${BOLD_RED}ERROR:${ENDC} This script must be run as root"
exit 1
fi

# Package and python module dependencies
declare -a pkg_deps=("python3-setuptools" "python3-pip" "libmagic-dev" "pbzip2")
declare -A pip_deps=( [python-magic]=magic )

# Check each package dependency
echo "Checking package dependencies"
to_install=""
for package in "${pkg_deps[@]}"
do
printf " $package..."
dpkg -l | grep "$package" > /dev/null
if [ "$?" -ne 0 ]; then
printf "${BOLD_RED}NOT INSTALLED${ENDC}\n"
if [[ -z "$to_install" ]]; then
to_install="$package"
else
to_install="$to_install $package"
fi
else
printf "${BOLD}INSTALLED${ENDC}\n"
fi
done
printf "\n"

# Attempt to install any missing packages
if [[ -z "${to_install// }" ]]; then
printf "All required packages are installed.\n"
else
printf "Attempting to install missing packages: $to_install\n\n"
sudo apt -y install "$to_install"
if [[ "$?" -eq 0 ]]; then
printf "\n\nPackage dependencies installed successfully.\n"
else
printf "\n\n${BOLD_RED}ERROR:${ENDC} unable to install package dependencies\n\n"
exit -1
fi
fi

printf "\n\n"

# Check each Python module dependency
echo "Checking Python module dependencies"
to_install=""
for module in "${!pip_deps[@]}"
do
printf " $module..."
python3 -c "import ${pip_deps[$module]}" 2> /dev/null
if [ "$?" -ne 0 ]; then
printf "${BOLD_RED}NOT INSTALLED${ENDC}\n"
if [[ -z "$to_install" ]]; then
to_install="$module"
else
to_install="$to_install $module"
fi
else
printf "${BOLD}INSTALLED${ENDC}\n"
fi
done
printf "\n"

# Attempt to install any missing Python modules
if [[ -z "${to_install// }" ]]; then
printf "All required Python modules are installed.\n"
else
printf "Attempting to install missing Python modules: $to_install\n\n"
sudo pip3 install "$to_install"
if [[ "$?" -eq 0 ]]; then
printf "\n\nPython module dependencies installed successfully.\n"
else
printf "\n\n${BOLD_RED}ERROR:${ENDC} unable to install Python module dependencies\n\n"
exit -1
fi
fi

printf "\n\n"

# Install systemd config
printf "Installing hbkcd systemd service..."
cp conf/systemd/hbkcd.service /etc/systemd/system/
systemctl daemon-reload
printf "DONE\n"
printf "\n\n"

# Install hbkcd Python module
# TODO: need to figure out a clean way to detect if this fails and halt
./setup.py install
printf "\n\n"

# Install scripts
printf "Installing hbkcd scripts..."
install -m 755 scripts/hbkcd_add.sh /usr/local/bin/hbkcd_add
install -m 755 scripts/hbkcd_queue.sh /usr/local/bin/hbkcd_queue
install -m 755 scripts/hbkcd_remove.sh /usr/local/bin/hbkcd_remove
install -m 755 scripts/hbkcd_status.sh /usr/local/bin/hbkcd_status
printf "DONE\n"
printf "\n\n"

# Start or restart hbckd
systemctl status hbkcd
result="$?"
if [ "$result" -ne 0 ]; then
echo "Starting hbkcd"
systemctl start hbkcd
else
echo "Restarting hbkcd"
systemctl restart hbkcd
fi

printf "\n${BOLD}[complete]${ENDC}\n\n"
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