$ErrorActionPreference = 'Stop'
$Version = '0.2.0'
$Base = if ($env:AGENTSOCKET_RELEASE_URL) { $env:AGENTSOCKET_RELEASE_URL } else { "https://agentsocket.xyz/releases/$Version" }
$Architecture = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture.ToString().ToLowerInvariant()
if ($Architecture -notin @('x64','arm64')) { throw 'This release supports Windows x64 and arm64.' }
$Name = "agentsocket-windows-$Architecture.exe"
$Temp = Join-Path ([IO.Path]::GetTempPath()) ([Guid]::NewGuid().ToString())
New-Item -ItemType Directory $Temp | Out-Null
try {
 Invoke-WebRequest "$Base/$Name" -OutFile (Join-Path $Temp $Name)
 $Sums = (Invoke-WebRequest "$Base/SHA256SUMS").Content
 $Expected = ($Sums -split "`n" | Where-Object { $_ -match "^[a-f0-9]{64}\s+$([regex]::Escape($Name))\s*$" }) -replace '\s+.*$', ''
 $Actual = (Get-FileHash (Join-Path $Temp $Name) -Algorithm SHA256).Hash.ToLowerInvariant()
 if (!$Expected -or $Actual -ne $Expected.Trim()) { throw 'Release checksum verification failed.' }
 $Bin = if ($env:AGENTSOCKET_INSTALL_DIR) { $env:AGENTSOCKET_INSTALL_DIR } else { Join-Path $env:LOCALAPPDATA 'AgentSocket\bin' }
 New-Item -ItemType Directory -Force $Bin | Out-Null
 Move-Item -Force (Join-Path $Temp $Name) (Join-Path $Bin 'agentsocket.exe')
 $Path = [Environment]::GetEnvironmentVariable('Path','User')
 if (($Path -split ';') -notcontains $Bin) { [Environment]::SetEnvironmentVariable('Path',"$Bin;$Path",'User') }
 $env:Path = "$Bin;$env:Path"
 & (Join-Path $Bin 'agentsocket.exe') --help | Out-Null
 Write-Host "AgentSocket $Version installed. Run agentsocket login, then agentsocket connect."
} finally { Remove-Item -Recurse -Force $Temp }