# PSScriptAnalyzer + Python lint — runs on every push/PR that touches code 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

on:
  push:
    paths:
      - '**.ps1'
      - '**.psm1'
      - '**.py'
      - 'pyproject.toml'
      - '.gitea/workflows/lint.yml'
  pull_request:
    paths:
      - '**.ps1'
      - '**.psm1'
      - '**.py'
      - 'pyproject.toml'
      - '.gitea/workflows/lint.yml'

jobs:
  pssa:
    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
          }

          $settings = Join-Path $PWD 'PSScriptAnalyzerSettings.psd1'
          $paths = @('scripts', 'template', 'Setup-Host.ps1')
          $results = $paths | ForEach-Object {
            if (Test-Path $_) {
              Invoke-ScriptAnalyzer -Path $_ -Recurse -Settings $settings -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."
          }

  python:
    runs-on: windows-build
    timeout-minutes: 20

    env:
      PYTHONIOENCODING: utf-8
      VENV_DIR: F:\CI\python\venv

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

      - name: Setup venv + install package
        shell: powershell
        run: |
          $ErrorActionPreference = 'Stop'

          # Production venv lives at F:\CI\python\venv (per AGENTS.md).
          # If missing or broken (pyvenv.cfg points to a deleted base interpreter,
          # e.g. a stale actions/setup-python tool_cache), rebuild it via the
          # Windows Python launcher (py -3.11). The act_runner SYSTEM service
          # does NOT have plain "python" in PATH, but py.exe is installed system-wide.
          $venvPy = Join-Path $env:VENV_DIR 'Scripts\python.exe'

          # Probe: a broken venv (pyvenv.cfg pointing to a deleted base interpreter)
          # writes "No Python at ..." to stderr; under $ErrorActionPreference='Stop'
          # native stderr becomes a terminating exception (AGENTS.md error #12),
          # so probe with SilentlyContinue + try/catch.
          $venvOk = $false
          if (Test-Path $venvPy) {
            try {
              $prevEAP = $ErrorActionPreference
              $ErrorActionPreference = 'SilentlyContinue'
              & $venvPy --version 2>&1 | Out-Null
              if ($LASTEXITCODE -eq 0) { $venvOk = $true }
            }
            catch { $venvOk = $false }
            finally { $ErrorActionPreference = $prevEAP }
          }

          if (-not $venvOk) {
            Write-Host "Venv missing or broken, (re)bootstrapping at $env:VENV_DIR"
            if (Test-Path $env:VENV_DIR) {
              Remove-Item $env:VENV_DIR -Recurse -Force
            }

            # Find a usable Python launcher. act_runner runs as SYSTEM and may
            # not have py.exe / python.exe in PATH; try common locations.
            # Override via $env:CI_PYTHON_LAUNCHER if installed elsewhere.
            $candidates = @()
            if ($env:CI_PYTHON_LAUNCHER) { $candidates += $env:CI_PYTHON_LAUNCHER }
            $candidates += @(
              'py.exe',
              'python.exe',
              'C:\Python311\python.exe',
              'C:\Python312\python.exe',
              'C:\Python313\python.exe',
              "$env:LOCALAPPDATA\Programs\Python\Python311\python.exe",
              "$env:LOCALAPPDATA\Programs\Python\Python312\python.exe",
              'C:\Program Files\Python311\python.exe',
              'C:\Program Files\Python312\python.exe',
              'C:\Program Files\Python313\python.exe'
            )
            $launcher = $null
            foreach ($c in $candidates) {
              $cmd = Get-Command $c -ErrorAction SilentlyContinue
              if ($cmd) { $launcher = $cmd.Source; break }
            }
            if (-not $launcher) {
              throw "No Python launcher found. Install Python 3.11+ system-wide or set CI_PYTHON_LAUNCHER. Tried: $($candidates -join ', ')"
            }
            Write-Host "Bootstrapping venv with: $launcher"

            if ($launcher -like '*py.exe') {
              & $launcher -3.11 -m venv $env:VENV_DIR
            }
            else {
              & $launcher -m venv $env:VENV_DIR
            }
            if ($LASTEXITCODE -ne 0) { throw "venv creation failed" }
          }

          Write-Host "Using venv python: $venvPy"
          & $venvPy --version
          if ($LASTEXITCODE -ne 0) { throw "python --version failed" }

          & $venvPy -m pip install --upgrade pip
          if ($LASTEXITCODE -ne 0) { throw "pip upgrade failed" }
          & $venvPy -m pip install -e ".[dev]"
          if ($LASTEXITCODE -ne 0) { throw "pip install failed" }

      - name: ruff
        shell: powershell
        run: |
          $venvPy = Join-Path $env:VENV_DIR 'Scripts\python.exe'
          & $venvPy -m ruff check src tests/python
          if ($LASTEXITCODE -ne 0) { throw "ruff failed" }

      - name: mypy --strict
        shell: powershell
        run: |
          $venvPy = Join-Path $env:VENV_DIR 'Scripts\python.exe'
          & $venvPy -m mypy --strict src
          if ($LASTEXITCODE -ne 0) { throw "mypy failed" }

      - name: pytest (coverage >= 80%)
        shell: powershell
        run: |
          $venvPy = Join-Path $env:VENV_DIR 'Scripts\python.exe'
          & $venvPy -m pytest tests/python --cov=ci_orchestrator --cov-fail-under=80
          if ($LASTEXITCODE -ne 0) { throw "pytest failed" }