name: Build and Release

on:
  workflow_dispatch:
    inputs:
      version:
        description: "Version (YYYY.MM.DD). Defaults to today (UTC)."
        required: false
        type: string

permissions:
  contents: write

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5
        with:
          ref: main
          fetch-depth: 0

      - name: Determine version
        id: ver
        run: |
          V="${{ inputs.version }}"
          [ -z "$V" ] && V="$(date -u '+%Y.%m.%d')"
          if ! [[ "$V" =~ ^[0-9]{4}\.[0-9]{2}\.[0-9]{2}$ ]]; then
            echo "::error::Invalid version '$V' (expected YYYY.MM.DD)"
            exit 1
          fi
          echo "version=$V" >> "$GITHUB_OUTPUT"
          echo "Building wg-watchdog $V"

      - name: Install xmllint
        run: |
          sudo apt-get update -qq
          sudo apt-get install -y -qq libxml2-utils

      - name: Build artifacts
        run: VERSION="${{ steps.ver.outputs.version }}" ./build.sh

      - name: Inspect artifacts
        run: |
          ls -la dist/
          md5sum  dist/*.txz
          sha256sum dist/*.txz
          xmllint --noout dist/wg-watchdog.plg
          tar -tJvf dist/*.txz | head -30

      - name: Commit plugin/wg-watchdog.plg to main
        run: |
          mkdir -p plugin
          cp dist/wg-watchdog.plg plugin/wg-watchdog.plg
          git add plugin/wg-watchdog.plg
          if git diff --cached --quiet; then
            echo "plg unchanged"
            exit 0
          fi
          git config user.name  "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git commit -m "release: ${{ steps.ver.outputs.version }} [skip ci]"
          git push origin main

      - name: Create release and upload assets
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          V="${{ steps.ver.outputs.version }}"
          if gh release view "$V" >/dev/null 2>&1; then
            echo "Release $V already exists; replacing assets."
          else
            gh release create "$V" \
              --title "wg-watchdog $V" \
              --notes "Automated release for wg-watchdog $V (built from $(git rev-parse --short HEAD))." \
              --target main
          fi
          gh release upload "$V" \
            "dist/wg-watchdog-${V}-noarch-1.txz" \
            "dist/wg-watchdog.plg" \
            --clobber