name: Build and Release

on:
  push:
    branches:
      - main
    tags:
      - "v*"
  pull_request:
    branches:
      - main
  workflow_dispatch:
    inputs:
      release_tag:
        description: "Optional tag to release (e.g. v1.1)"
        required: false
        type: string

jobs:
  build:
    if: github.event_name == 'pull_request' || github.ref == 'refs/heads/main' || github.event_name == 'workflow_dispatch'
    runs-on: ubuntu-latest
    container: debian:11

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install build dependencies
        run: apt-get update && apt-get install -y --no-install-recommends make g++ git tar ca-certificates

      - name: Build
        run: make clean build

  release:
    if: (github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')) || (github.event_name == 'workflow_dispatch' && inputs.release_tag != '')
    runs-on: ubuntu-latest
    container: debian:11
    permissions:
      contents: write

    steps:
      - name: Checkout (tag push)
        uses: actions/checkout@v4
        if: github.event_name == 'push'

      - name: Checkout (manual tag)
        uses: actions/checkout@v4
        if: github.event_name == 'workflow_dispatch'
        with:
          ref: ${{ inputs.release_tag }}

      - name: Install build dependencies
        run: apt-get update && apt-get install -y --no-install-recommends make g++ git tar ca-certificates

      - name: Build release tarball
        env:
          VERSION: ${{ github.event_name == 'workflow_dispatch' && inputs.release_tag || github.ref_name }}
        run: |
          if make -n release >/dev/null 2>&1; then
            make release VERSION="$VERSION"
          else
            make clean build
            mkdir -p dist
            tar -C build -czf "dist/fetchit-${VERSION}-linux-x86_64-gnu.tar.gz" fetchit
          fi

      - name: Upload workflow artifact
        uses: actions/upload-artifact@v4
        with:
          name: fetchit-${{ github.event_name == 'workflow_dispatch' && inputs.release_tag || github.ref_name }}-linux-x86_64-gnu
          path: dist/*.tar.gz

      - name: Publish GitHub release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ github.event_name == 'workflow_dispatch' && inputs.release_tag || github.ref_name }}
          files: dist/*.tar.gz
          overwrite_files: true
          generate_release_notes: true