param(
    [Parameter(Mandatory=$true)][string]$Server,
    [Parameter(Mandatory=$true)][string]$Owner,
    [Parameter(Mandatory=$true)][string]$Repo,
    [Parameter(Mandatory=$true)][string]$Token,
    [Parameter(Mandatory=$true)][string]$ZipPath
)

$ErrorActionPreference = 'Stop'

if (-not (Test-Path -LiteralPath $ZipPath)) {
    throw "ZIP not found: $ZipPath"
}

$headers = @{ Authorization = "token $Token" }

$latestUrl = "$Server/api/v1/repos/$Owner/$Repo/releases/latest"
$latest = Invoke-RestMethod -Headers $headers -Method GET -Uri $latestUrl
if (-not $latest -or -not $latest.id) {
    throw "Failed to get latest release from $latestUrl"
}

$rid = [string]$latest.id
$name = [System.IO.Path]::GetFileName($ZipPath)
$escapedName = [System.Uri]::EscapeDataString($name)
$uploadUrl = "$Server/api/v1/repos/$Owner/$Repo/releases/$rid/assets?name=$escapedName"

Write-Host "Latest release id: $rid"
Write-Host "Uploading $name to $uploadUrl"

# Use Invoke-WebRequest multipart form upload
$form = @{ attachment = Get-Item -LiteralPath $ZipPath }
$resp = Invoke-WebRequest -Headers $headers -Method Post -Uri $uploadUrl -Form $form

if ($resp.StatusCode -ge 200 -and $resp.StatusCode -lt 300) {
    Write-Host "Upload successful (HTTP $($resp.StatusCode))"
} else {
    Write-Host "Upload failed (HTTP $($resp.StatusCode))" -ForegroundColor Red
    if ($resp.Content) { Write-Host $resp.Content }
    exit 1
}