#!/bin/sh
# This script will install Liquit Universal Agent on macOS.
# Authors Matthew Gonzalez en Sven van Katwijk
# Version 1.0
# Date created 24-01-2023
# Copyright 2023 Liquit Software B.V.

# This code is made available as is, without any warranty of any kind. The entire risk of the use or the results of the use of this code remains with the user. 

# Dynamic variables
agent_download_url="https://example.liquit.com/api/agent/installers/F84543F0-F440-4200-9A2B-E13FC30C71BB"
config_download_url="https://liquit.example.blob.core.windows.net/liquit/Agent.json"
certificate_download_url="https://liquit.example.blob.core.windows.net/liquit/AgentRegistration.cer"
working_dir="/Library/Application Support/com.liquit.Bootstrapper"

# Define log file name
log_file="$working_dir/Bootstrapper.log"

# Define package and configuration file name
pkg_path="$working_dir/Liquit-Universal-Agent-Mac.pkg"
config_path="$working_dir/Agent.json"
cert_path="$working_dir/MacRegistar.cer"

# Create log file if it doesn't exist
touch "$log_file"

function log() {
    echo "$(date +'%Y-%m-%d %H:%M:%S') "$1 | tee -a "$log_file"
}

# Log file location
echo "Using logfile "$log_file

log "Starting installation"

# Check if running as root.
if [ "$(id -u)" != "0" ]; then
    echo "This script must be run as root!"
    exit 1
fi

# Check if Liquit is already installed
if [ -d "/Applications/Liquit.app" ]; then
    log "Liquit is already installed "
    exit 0
fi

# Creates download path
mkdir -p "$working_dir"
cd "$working_dir"
log "Working directory created "

# Download Liquit Universal Agent & JSON file
curl -L -o "$pkg_path" "$agent_download_url"
if [ $? -ne 0 ]; then
    log "Failed to download Liquit Universal Agent"
    exit 1
fi

log "Liquit Universal Agent downloaded "

# Download JSON file
curl -L -o "$config_path" "$config_download_url"
if [ $? -ne 0 ]; then
    log
    exit 1
fi

log "JSON file downloaded"

# Download registration certificate
if [[ ! -z "$certificate_download_url" ]]; then

    curl -L -o "$cert_path" "$certificate_download_url"
    if [ $? -ne 0 ]; then
        log "Failed to download registration certificate"
        exit 1
    fi
    log "Registration certificate downloaded"

fi

# Install Liquit Universal Agent
log "Installing Liquit Universal Agent"
installer -pkg "$pkg_path" -target / -dumplog

# Check if installation was successful
if [ $? -ne 0 ]; then
    log "Failed to install Liquit Universal Agent"
    exit 1
fi

# Check if Liquit is installed
log "Liquit Universal Agent installed"

# Make sure all files are released before deleting them.
sleep 5

# Remove downloaded files
rm "$pkg_path"
rm "$config_path"
rm "$cert_path"

log "Downloaded files removed"

log "Installation completed"

exit 0