# ScoutIT Remote Support (RustDesk) - Standalone Install Script
$ErrorActionPreference = 'SilentlyContinue'

# ── Config ────────────────────────────────────────────────────────────────────
$rustdeskMsi        = 'estudio-scoutit-remotesupport.msi'
$rustdeskDl         = 'https://scoutit.help/estudio-rust'
$rustdeskInstallDir = 'C:\Program Files\ScoutIT-RemoteSupport'
$rustdeskService    = 'ScoutIT-RemoteSupport'

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

# ── Check if already installed ────────────────────────────────────────────────
$svcCheck = Get-Service -Name $rustdeskService -ErrorAction SilentlyContinue
if ($null -ne $svcCheck) {
    Write-Host "ScoutIT Remote Support is already installed. Exiting."
    exit 0
}

# ── Download ──────────────────────────────────────────────────────────────────
$msiPath = "$env:TMP\$rustdeskMsi"
Write-Host "Downloading ScoutIT Remote Support client..."
Try {
    Invoke-WebRequest -Uri $rustdeskDl -OutFile $msiPath
}
Catch {
    Write-Error "Download failed: $($_.Exception.Message)"
    exit 1
}

# ── Silent MSI install ────────────────────────────────────────────────────────
Write-Host "Installing ScoutIT Remote Support client silently..."
Try {
    Start-Process -FilePath "msiexec.exe" `
                  -ArgumentList "/i `"$msiPath`" /qn /norestart CREATEDESKTOPSHORTCUTS=`"N`" INSTALLPRINTER=`"N`"" `
                  -Wait
    Start-Sleep -Seconds 10
}
Catch {
    Write-Error "MSI install failed: $($_.Exception.Message)"
    exit 1
}
Finally {
    if (Test-Path $msiPath) { Remove-Item -Path $msiPath -Force }
}

# ── Locate the installed exe ──────────────────────────────────────────────────
$rustdeskExe = "$rustdeskInstallDir\$($rustdeskMsi -replace '\.msi$', '.exe')"
if (-not (Test-Path $rustdeskExe)) {
    Write-Host "Searching for RustDesk exe in Program Files..."
    $found = Get-ChildItem 'C:\Program Files' -Recurse -Filter '*.exe' -ErrorAction SilentlyContinue |
             Where-Object { $_.Name -match 'rustdesk|scoutit|remotesupport' } |
             Select-Object -First 1
    if ($found) {
        $rustdeskExe = $found.FullName
        Write-Host "Found exe at: $rustdeskExe"
    } else {
        Write-Error "Could not locate RustDesk exe after install."
        exit 1
    }
}

$exeDir = Split-Path $rustdeskExe

# ── Install service if not present ────────────────────────────────────────────
$svc = Get-Service -Name $rustdeskService -ErrorAction SilentlyContinue
if ($null -eq $svc) {
    Write-Host "Registering ScoutIT Remote Support service..."
    Start-Process -FilePath $rustdeskExe -ArgumentList '--install-service' -Wait
    Start-Sleep -Seconds 20
    $svc = Get-Service -Name $rustdeskService -ErrorAction SilentlyContinue
}

# ── Ensure service is running ─────────────────────────────────────────────────
if ($null -ne $svc) {
    $attempts = 0
    while ($svc.Status -ne 'Running' -and $attempts -lt 5) {
        Write-Host "Starting ScoutIT Remote Support service (attempt $($attempts + 1))..."
        Start-Service -Name $rustdeskService -ErrorAction SilentlyContinue
        Start-Sleep -Seconds 5
        $svc.Refresh()
        $attempts++
    }
    if ($svc.Status -eq 'Running') {
        Write-Host "ScoutIT Remote Support service is running."
    } else {
        Write-Warning "Service did not reach Running state after $attempts attempts."
    }
} else {
    Write-Warning "Service '$rustdeskService' not found after install."
}

# ── Output RustDesk ID ────────────────────────────────────────────────────────
Push-Location $exeDir
$rustdeskId = & $rustdeskExe --get-id 2>&1
Pop-Location

Write-Output "................................................."
Write-Output "ScoutIT Remote Support ID: $rustdeskId"
Write-Output "................................................."

exit 0