#!/usr/bin/bash

# work in progress
id -u catask >/dev/null 2>&1 || sudo useradd -r -s /bin/false -m -d /etc/catask -U catask
sudo git clone https://git.mst.k.vu/mst/catask /tmp/catask
cd /tmp/catask

commit_short_hash=$(git rev-parse --short HEAD)
bold=$(tput bold)
normal=$(tput sgr0)

echo "--------------------------"
echo "${bold}Installing CatAsk (commit ${commit_short_hash})...${normal}"
echo "--------------------------"
echo
echo "${bold}Creating & activating virtual environment...${normal}"
python3 -m venv venv && . venv/bin/activate
echo
echo "${bold}Installing required packages...${normal}"
pip install -r requirements.txt

# move to /etc/catask after installing packages
sudo cp -r /tmp/catask/ /etc/catask/

echo
echo "${bold}Configuring CatAsk...${normal}"
cp .env.example .env; cp config.example.json config.json
echo
read -n 1 -s -r -p "Press any key to open main config file..."
nano config.json
read -n 1 -s -r -p "Press any key to open .env config file..."
nano .env

echo
echo 'Initializing the database...'
if flask init-db; then : ; else
	echo 'If the error is "MySQL Connection not available." then you can safely ignore it'
	echo 'Otherwise, create an issue at https://git.mst.k.vu/mst/catask/issues/new'
	read -p "Proceed? (y/N) " proceed_after_error
	proceed_after_error="${proceed_after_error,,}"
	echo $proceed_after_error
	if [[ "$proceed_after_error" == 'y' ]]; then
		echo "Proceeding..."
	else
		exit 255
	fi
fi

read -p "Do you want to install CatAsk as a systemd service? (Y/n) " sysd_service_input

if [[ "$sysd_service_input" == 'n' ]]; then
	echo "Start CatAsk with: ${bold}gunicorn -w 4 app:app -b 127.0.0.1:5000${normal}"
	echo "Replace ${bold}127.0.0.1:5000${normal} with address where CatAsk will run"
	exit 0
else
read -p "Address on which CatAsk will run (127.0.0.1:5000): " catask_addr
catask_addr=${catask_addr:-127.0.0.1:5000}
sudo cat > /etc/systemd/system/catask.service << EOF
[Unit]
Description=catask

[Service]
User=catask
WorkingDirectory=$PWD
ExecStart=$PWD/venv/bin/python3 -m gunicorn -w 4 app:app -b $catask_addr
EOF
fi
echo "Created a systemd service with these contents:"
echo "-----------------------"
cat << EOF
[Unit]
Description=catask

[Service]
User=catask
WorkingDirectory=$PWD
ExecStart=$PWD/venv/bin/python3 -m gunicorn -w 4 app:app -b $catask_addr

[Install]
WantedBy=multi-user.target
EOF
echo "-----------------------"
echo "Start the service with: ${bold}sudo systemctl start --now catask${normal}"
echo
echo "${bold}Install complete!${normal}"