name: Release

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

permissions:
  contents: write

jobs:
  build:
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: Install build dependencies
        run: python -m pip install --upgrade pip pyinstaller rich

      - name: Resolve version from tag
        id: ver
        shell: bash
        run: echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      - name: Build executable
        run: python -m PyInstaller --onefile --uac-admin --console --name dhcpsrv dhcpsrv_app.py

      - name: Package portable folder
        shell: pwsh
        run: |
          $ver = '${{ steps.ver.outputs.version }}'
          $folder = "dhcpsrv-v$ver"
          New-Item -ItemType Directory -Path $folder | Out-Null
          Copy-Item dist/dhcpsrv.exe $folder/
          @"
          dhcpsrv v$ver - portable edition
          made by engelgardt

          Minimal laptop-side DHCP server for storage/server engineers.

          USAGE
            Double-click dhcpsrv.exe.
            Accept the UAC prompt (admin needed to bind UDP/67 and reconfigure the NIC).
            Pick the NIC plugged into your server/switch - that's the only question.
            Press Ctrl+C to stop.

          DEFAULTS
            Server IP : 10.10.10.1/24
            Pool      : 10.10.10.2 .. 10.10.10.51   (50 addresses)
            Lease     : 7200 seconds (2 hours)
            TFTP opt  : server IP

          NOTES
            - Nothing is installed. Delete the folder to remove.
            - UAC prompt appears every time (no scheduled-task shortcut in portable mode).
            - If Tftpd32 has its DHCP module enabled, disable it - UDP/67 is then taken.
          "@ | Out-File -FilePath "$folder/README.txt" -Encoding UTF8
          Compress-Archive -Path $folder -DestinationPath "dhcpsrv-portable-v$ver.zip"

      - name: Generate SHA-256 checksum
        shell: pwsh
        run: |
          $ver = '${{ steps.ver.outputs.version }}'
          $zip = "dhcpsrv-portable-v$ver.zip"
          $hash = (Get-FileHash -Algorithm SHA256 $zip).Hash.ToLower()
          "$hash  $zip" | Out-File -FilePath "$zip.sha256" -Encoding ASCII -NoNewline
          Get-Content "$zip.sha256"

      - name: Create release
        uses: softprops/action-gh-release@v2
        with:
          files: |
            dhcpsrv-portable-v${{ steps.ver.outputs.version }}.zip
            dhcpsrv-portable-v${{ steps.ver.outputs.version }}.zip.sha256
          generate_release_notes: true