1# Vision — Windows installer (PowerShell)
2# Downloads from the primary server and automatically falls back to the secondary server if needed.
3# SHA-256: ab263eb54de9ca402f86242f9a9c03186dfb7dba49ca43e28afb47ce11691a17 (VisionSetup.exe)
4
5$Primary  = "https://vision.seshstation.com/VisionSetup.exe"
6$Fallback = "https://vision.networkunknown.ru/VisionSetup.exe"
7
8$Installer = Join-Path $env:TEMP "VisionSetup.exe"
9
10function Download-Installer {
11    param([string]$Url)
12    try {
13        Invoke-WebRequest -Uri $Url -OutFile $Installer -UseBasicParsing -TimeoutSec 15 -ErrorAction Stop
14        return $true
15    } catch {
16        return $false
17    }
18}
19
20Write-Host "Downloading installer from primary server..."
21
22if (-not (Download-Installer $Primary)) {
23    Write-Host "Primary server unavailable, trying fallback..."
24    if (-not (Download-Installer $Fallback)) {
25        Write-Error "Failed to download Vision installer."
26        exit 1
27    }
28}
29
30Write-Host "Launching installer..."
31Start-Process $Installer