# Define application variables
$application = Get-WmiObject -Class Win32_Product -Filter "Name = 'Liongard Agent'"
$application2 = Get-WmiObject -Class Win32_Product -Filter "Name = 'RoarAgent'"
$Folder = "AddFolderPathHere" # Specify the folder path for installation files
$URL = "XXX.app.liongard.com" # Replace with your Liongard URL
$Key = "PasteKeyHere" # Replace with your access key
$Secret = "PasteSecretHere" # Replace with your secret
$Environment = "PasteEnvironmentNameHere" # Replace with your environment name

# Ensure using TLS 1.2 for secure connections
[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12

# Uninstall previous installations if found
if ($application) {
    Write-Host "A recent version of the Liongard Agent was found! Uninstalling..."
    $application.Uninstall()
} elseif ($application2) {
    Write-Host "An old version of RoarAgent was found. Uninstalling..."
    $application2.Uninstall()
} else {
    Write-Host "No Liongard Agent installation was found. Proceeding with installation..."
}

Start-Sleep -Seconds 10

# Check and prepare the installation directory
Write-Host "Checking if folder [$Folder] exists..."
if (Test-Path -Path $Folder) {
    Write-Host "Path exists! Downloading Liongard Agent installer..."
    Start-Sleep -Seconds 2
    Invoke-WebRequest -Uri "https://agents.static.liongard.com/LiongardAgent-lts.msi" -OutFile "$Folder\LiongardAgent-lts.msi"
} else {
    Write-Host "Path does not exist. Creating directory at [$Folder]..."
    New-Item -Path $Folder -ItemType Directory
    if (Test-Path -Path $Folder) {
        Write-Host "Directory created successfully! Downloading Liongard Agent installer..."
        Start-Sleep -Seconds 2
        Invoke-WebRequest -Uri "https://agents.static.liongard.com/LiongardAgent-lts.msi" -OutFile "$Folder\LiongardAgent-lts.msi"
    } else {
        Write-Host "Failed to create directory, please check permissions. Exiting script..."
        Start-Sleep -Seconds 10
        Exit
    }
}

# Install the Liongard Agent
Write-Host "Installing the Liongard Agent..."
msiexec.exe /i "$Folder\LiongardAgent-lts.msi" LIONGARDURL=$URL LIONGARDACCESSKEY=$Key LIONGARDACCESSSECRET=$Secret LIONGARDENVIRONMENT=`"$Environment`" LIONGARDAGENTNAME="$env:computername" /qn /norestart /L*V "$Folder\AgentInstall.log"
Start-Sleep -Seconds 2
Write-Host "Installation complete, check the install log at [$Folder] for details."
Start-Sleep -Seconds 5
Write-Host "Exiting script..."
Exit