#!/bin/bash

# T&M Hansson IT AB © - 2020, https://www.hanssonit.se/

# shellcheck disable=2034,2059
true
# shellcheck source=lib.sh
. <(curl -sL https://raw.githubusercontent.com/nextcloud/vm/master/lib.sh)

# Check for errors + debug code and abort if something isn't right
# 1 = ON
# 0 = OFF
DEBUG=0
debug_mode

# Must be root
root_check

# Check if Netdata is already installed
print_text_in_color "$ICyan" "Checking if Netdata is already installed..."
if [ -d /etc/netdata ]
then
    choice=$(whiptail --radiolist "It seems like 'Netdata' is already installed.\nChoose what you want to do.\nSelect by pressing the spacebar and ENTER" "$WT_HEIGHT" "$WT_WIDTH" 4 \
    "Uninstall Netdata" "" OFF \
    "Reinstall Netdata" "" ON 3>&1 1>&2 2>&3)

    case "$choice" in
        "Uninstall Netdata")
            print_text_in_color "$ICyan" "Uninstalling Netdata..."
            if [ -f /usr/src/netdata.git/netdata-uninstaller.sh ]
            then
                if ! yes no | bash /usr/src/netdata.git/netdata-uninstaller.sh --force
                then
                    rm -Rf /usr/src/netdata.git
                fi
            elif [ -f /usr/libexec/netdata-uninstaller.sh ]
            then
                yes no | bash /usr/libexec/netdata-uninstaller.sh --yes
            elif [ -f /usr/libexec/netdata/netdata-uninstaller.sh ]
            then
                bash /usr/libexec/netdata/netdata-uninstaller.sh --force --yes
            else
                check_command curl_to_dir https://raw.githubusercontent.com/netdata/netdata/master/packaging/installer netdata-uninstaller.sh $SCRIPTS
                check_command bash $SCRIPTS/netdata-uninstaller.sh --force --yes
                rm $SCRIPTS/netdata-uninstaller.sh
                rm -rf /var/lib/netdata
                msg_box "Netdata was successfully uninstalled."
            fi
            exit
        ;;
        "Reinstall Netdata")
            print_text_in_color "$ICyan" "Reinstalling Netdata..."
            if [ -f /usr/src/netdata.git/netdata-uninstaller.sh ]
            then
                if ! yes no | bash /usr/src/netdata.git/netdata-uninstaller.sh --force
                then
                    rm -Rf /usr/src/netdata.git
                fi
            elif [ -f /usr/libexec/netdata-uninstaller.sh ]
            then
                yes | bash /usr/libexec/netdata-uninstaller.sh --yes
            elif [ -f /usr/libexec/netdata/netdata-uninstaller.sh ]
            then
                bash /usr/libexec/netdata/netdata-uninstaller.sh --force --yes
            else
                check_command curl_to_dir https://raw.githubusercontent.com/netdata/netdata/master/packaging/installer netdata-uninstaller.sh $SCRIPTS
                check_command bash $SCRIPTS/netdata-uninstaller.sh --force --yes
                rm $SCRIPTS/netdata-uninstaller.sh
                rm -rf /var/lib/netdata
            fi
        ;;
        *)
        ;;
    esac
else
    print_text_in_color "$ICyan" "Installing Netdata..."
fi

# Install
is_process_running dpkg
is_process_running apt
apt update -q4 & spinner_loading
curl_to_dir https://my-netdata.io kickstart.sh $SCRIPTS
sudo -u "$UNIXUSER" bash $SCRIPTS/kickstart.sh all --dont-wait --no-updates --stable-channel
rm -f $SCRIPTS/kickstart.sh

# Check Netdata instructions after script is done
any_key "Please check information above and press any key to continue..."

# Installation done?
if [ -d /etc/netdata ]
then
msg_box "Netdata is now installed and can be accessed from this address:

http://$ADDRESS:19999

If you want to reach it from the internet you need to open port 19999 in your firewall.
If you don't know how to open ports, please follow this guide:
https://www.techandme.se/open-port-80-443/

After you have opened the correct port, then you can visit Netdata from your domain:

http://$(hostname -f):19999 and or http://yourdomanin.com:19999

You can find more configuration options in their WIKI:
https://docs.netdata.cloud/daemon/config#configuration-guide"

# Cleanup
rm -rf /tmp/netdata*
fi

exit