#!/bin/bash

# make sure we are running as sudo
if [ "$EUID" -ne 0 ]; then
  echo "Please run as root"
  exit
fi

# get OS ditro and version
OS=$(hostnamectl | awk '/Operating System/ {print $3}')
VM=$(hostnamectl | awk '/Virtualization/ {print $2}')
if [ ${OS} == 'Ubuntu' ]; then
	OS_VERSION=$(hostnamectl | awk '/Operating System/ {print $4}')
else
	OS_VERSION=$(hostnamectl | awk '/Operating System/ {print $5}')
fi

if [ "${VM}" == "vmware" ] || [ "${VM}" == "kvm" ] || [ "${VM}" == "lxc" ]; then
	VM="true"
  echo "This should only be installed with physical hosts"
  exit
fi

# scrutiny web directory
SCRUTINY_DIRECTORY="/opt/scrutiny"
# download srouce code of latest releases page
HTML_SOURCE=$(wget -O - https://api.github.com/repos/AnalogJ/scrutiny/releases/latest)
# version
VERSION=$(echo ${HTML_SOURCE} | jq -r .tag_name)
# get assets
ASSETS=$(echo ${HTML_SOURCE} | jq -r .assets[])

if [ ! -d "${SCRUTINY_DIRECTORY}" ]; then
    mkdir "${SCRUTINY_DIRECTORY}"
fi

jq -c .assets[] <<< ${HTML_SOURCE} | while read i; do
    name=$(echo ${i} | jq -r .name)
    downloadUrl=$(echo ${i} | jq -r .browser_download_url)
    if [ ${name} == 'scrutiny-collector-metrics-linux-amd64' ]; then 
      wget -O "${SCRUTINY_DIRECTORY}/${name}" ${downloadUrl}
      chmod +x "${SCRUTINY_DIRECTORY}/${name}"
      cat << EOF > /etc/cron.daily/scrutiny
#!/bin/bash
"${SCRUTINY_DIRECTORY}/${name}" run --api-endpoint="http://gauntscrutiny.home.johnhgaunt.com:8080" --host-id $(hostname)
EOF
    chmod +x /etc/cron.daily/scrutiny
    /etc/cron.daily/scrutiny
    fi
done