#!/bin/bash -i

# CONSTANTS

CONFIG_FILE=/opt/miaou-proxmox/config/default.conf

# FUNCTIONS

function halt_on_error {
	>&2 echo "ERROR: $1"
	exit ${2:-1}
}

function assert_root {
    [ "$(id -u)" -ne 0 ] && halt_on_error 'root privilege required!' 1
}

function assert_proxmox {
	grep -q ^ID=debian /etc/os-release || halt_on_error 'distro debian required!' 2
	command -v pct >/dev/null || halt_on_error 'command `pct` not found!' 3
	command -v curl >/dev/null || halt_on_error 'command `curl` not found!' 4
}

function install_miaou_bash {
	if [[ ! -d /opt/miaou-bash ]]; then
		echo 'installing miaou-bash...'
		curl https://git.artcode.re/miaou/miaou-bash/raw/branch/main/install.sh | sudo bash -s
	fi
}

function install_miaou_proxmox {
	if [[ ! -d /opt/miaou-proxmox ]]; then
		echo 'installing miaou-proxmox...'
		git clone https://git.artcode.re/miaou/miaou-proxmox.git /opt/miaou-proxmox
	else
		cd /opt/miaou-proxmox
		git pull
		cd - >/dev/null
	fi
	status=$(/opt/miaou-bash/tools/append_or_replace '^PATH=\$PATH:/opt/miaou-proxmox/bin' 'PATH=$PATH:/opt/miaou-proxmox/bin' $HOME/.bashrc)
	[[ $status == 'appended' ]] && echo 'successfully installed! please run `source $HOME/.bashrc`'
	true
}

function initialize {
	mkdir -p /opt/miaou-proxmox/config

	if [[ ! -f $CONFIG_FILE ]]; then
		pct-default --config
		echo '------------------------'
		echo 'successfully configured!'
		echo '------------------------'
	else
		echo '------------------------------'
		echo 'no change: already configured!'
		echo '------------------------------'	
	fi

	echo 'you can display or edit default values with:'
	echo '  `pct-default`'
	echo '  `pct-default --edit`'
	echo '------------------------'
	echo 'try out any of the `pct-*` commands (--help might be useful)'
}

# MAIN

set Eue
assert_root
assert_proxmox
install_miaou_bash
install_miaou_proxmox
initialize