# PSScriptAnalyzer lint — runs on every push/PR that touches PowerShell files.
# Requires PSScriptAnalyzer installed on the runner host:
#   Install-Module PSScriptAnalyzer -Scope AllUsers -Force
#
# Failures block the PR. Fix warnings with:
#   Invoke-ScriptAnalyzer -Path scripts\ -Recurse -Fix

name: Lint (PSScriptAnalyzer)

on:
  push:
    paths:
      - '**.ps1'
      - '**.psm1'
  pull_request:
    paths:
      - '**.ps1'
      - '**.psm1'

jobs:
  lint:
    runs-on: windows-build
    timeout-minutes: 10

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Run PSScriptAnalyzer
        shell: powershell
        run: |
          $ErrorActionPreference = 'Stop'

          if (-not (Get-Module -ListAvailable PSScriptAnalyzer)) {
            Write-Host "Installing PSScriptAnalyzer..."
            Install-Module PSScriptAnalyzer -Scope CurrentUser -Force -AllowClobber
          }

          $paths = @('scripts', 'template', 'runner', 'Setup-Host.ps1')
          $results = $paths | ForEach-Object {
            if (Test-Path $_) {
              Invoke-ScriptAnalyzer -Path $_ -Recurse -Severity Error,Warning
            }
          }

          if ($results) {
            $results | Format-Table -AutoSize
            Write-Error "PSScriptAnalyzer found $($results.Count) issue(s). Fix before merging."
            exit 1
          }
          else {
            Write-Host "PSScriptAnalyzer: no issues found."
          }