name: Build Windows

# Windows-only build for the self-hosted org runner labelled "windows-latest".
# Produces dist/macropad.exe as a build artifact, and on a version tag (v*)
# creates/updates a Gitea release and attaches the exe.
#
# Note: actions/setup-python is intentionally NOT used — its Windows
# tool-cache install script hangs on self-hosted runners. Instead we use an
# existing Python 3.11 if the VM has one, otherwise silently install it
# per-user (no elevation, no prompts).

on:
  workflow_dispatch:
  push:
    tags:
      - 'v*'

jobs:
  build-windows:
    runs-on: windows-latest
    timeout-minutes: 30
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Ensure Python 3.11
        shell: pwsh
        run: |
          $ErrorActionPreference = 'Stop'
          $python = $null

          # 1) Existing "py -3.11" launcher
          try {
            $exe = & py -3.11 -c "import sys; print(sys.executable)" 2>$null
            if ($LASTEXITCODE -eq 0 -and $exe) { $python = $exe.Trim() }
          } catch {}

          # 2) A python on PATH that is 3.11.x
          if (-not $python) {
            try {
              $v = & python --version 2>&1
              if ($LASTEXITCODE -eq 0 -and "$v" -match '3\.11') {
                $python = (& python -c "import sys; print(sys.executable)").Trim()
              }
            } catch {}
          }

          # 3) Install per-user, silent (no elevation, cannot prompt)
          if (-not $python) {
            Write-Host "Python 3.11 not found - installing per-user..."
            $tmp = if ($env:RUNNER_TEMP) { $env:RUNNER_TEMP } else { $env:TEMP }
            $installer = Join-Path $tmp "python-3.11.9-amd64.exe"
            Invoke-WebRequest -Uri "https://www.python.org/ftp/python/3.11.9/python-3.11.9-amd64.exe" -OutFile $installer
            $dir = Join-Path $tmp "Python311"
            $proc = Start-Process -FilePath $installer -Wait -PassThru -NoNewWindow -ArgumentList @(
              "/quiet","InstallAllUsers=0","PrependPath=0","Include_launcher=0","Include_test=0","TargetDir=$dir"
            )
            if ($proc.ExitCode -ne 0) { throw "Python installer exited with $($proc.ExitCode)" }
            $python = Join-Path $dir "python.exe"
          }

          if (-not (Test-Path $python)) { throw "Python not found at '$python'" }
          & $python --version
          "PYTHON=$python" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8

      - name: Install dependencies
        shell: pwsh
        run: |
          $ErrorActionPreference = 'Stop'
          & $env:PYTHON -m pip install --upgrade pip
          & $env:PYTHON -m pip install -e .
          & $env:PYTHON -m pip install pyinstaller

      - name: Build Windows executable
        shell: pwsh
        run: |
          $ErrorActionPreference = 'Stop'
          & $env:PYTHON -m PyInstaller --noconfirm macropad.spec

      - name: Verify build output
        shell: pwsh
        run: |
          if (-not (Test-Path dist/macropad.exe)) {
            throw "Build failed: dist/macropad.exe not found"
          }
          Get-Item dist/macropad.exe | Format-List Name, Length, LastWriteTime

      - name: Upload build artifact
        uses: actions/upload-artifact@v4
        with:
          name: macropad-windows
          path: dist/macropad.exe
          if-no-files-found: error

      - name: Publish release asset (tags only)
        if: startsWith(github.ref, 'refs/tags/')
        shell: pwsh
        env:
          GITEA_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          $ErrorActionPreference = 'Stop'
          $api  = $env:GITHUB_API_URL
          $repo = $env:GITHUB_REPOSITORY
          $tag  = $env:GITHUB_REF_NAME
          $headers = @{ Authorization = "token $env:GITEA_TOKEN" }

          # Create the release for this tag, or fetch it if it already exists.
          $body = @{ tag_name = $tag; name = $tag; draft = $false; prerelease = $false } | ConvertTo-Json
          try {
            $rel = Invoke-RestMethod -Method Post -Uri "$api/repos/$repo/releases" `
              -Headers $headers -ContentType 'application/json' -Body $body
          } catch {
            $rel = Invoke-RestMethod -Method Get -Uri "$api/repos/$repo/releases/tags/$tag" -Headers $headers
          }

          # Attach the executable (replace a prior asset of the same name).
          $existing = $rel.assets | Where-Object { $_.name -eq 'macropad.exe' }
          if ($existing) {
            Invoke-RestMethod -Method Delete -Headers $headers `
              -Uri "$api/repos/$repo/releases/$($rel.id)/assets/$($existing.id)"
          }
          Invoke-RestMethod -Method Post -Headers $headers `
            -Uri "$api/repos/$repo/releases/$($rel.id)/assets?name=macropad.exe" `
            -InFile dist/macropad.exe -ContentType 'application/octet-stream'
          Write-Host "Attached macropad.exe to release $tag"