name: Release

on:
  workflow_dispatch:

permissions:
  contents: write

jobs:
  validate-release:
    name: Validate Release
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Source Code
        uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Check release tag is new
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          version="$(python -c "import tomllib; print(tomllib.load(open('pyproject.toml', 'rb'))['project']['version'])")"
          if [ "${{ github.ref }}" = "refs/heads/main" ]; then
            tag="v${version}"
          else
            safe_ref="$(echo "${{ github.ref_name }}" | tr '/_' '--' | tr -cd '[:alnum:].-')"
            tag="v${version}-${safe_ref}.${GITHUB_RUN_NUMBER}"
          fi

          if git rev-parse -q --verify "refs/tags/${tag}" >/dev/null; then
            echo "::error title=Release tag already exists::${tag} already exists. Bump project.version in pyproject.toml before running the release workflow."
            exit 1
          fi

          if gh release view "$tag" >/dev/null 2>&1; then
            echo "::error title=GitHub release already exists::${tag} already has a GitHub release. Bump project.version in pyproject.toml before running the release workflow."
            exit 1
          fi

  build-windows:
    name: Build Windows
    needs: validate-release
    runs-on: windows-latest

    steps:
      - name: Checkout Source Code
        uses: actions/checkout@v5

      - name: Get Python
        uses: actions/setup-python@v6
        with:
          python-version: "3.12"

      - name: Install Dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install -e ".[build]"

      - name: Test
        run: python -m unittest discover -s tests

      - name: Build
        run: python -m PyInstaller --clean --noconfirm "packaging/NTE History Exporter.spec"

      - name: Smoke Test
        run: .\dist\nte-history-exporter.exe --help

      - name: Upload Artifact
        uses: actions/upload-artifact@v6
        with:
          name: windows
          path: dist/nte-history-exporter.exe

  build-linux:
    name: Build Linux
    needs: validate-release
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Source Code
        uses: actions/checkout@v5

      - name: Install libpcap
        run: sudo apt-get update && sudo apt-get install -y libpcap-dev

      - name: Get Python
        uses: actions/setup-python@v6
        with:
          python-version: "3.12"

      - name: Install Dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install -e ".[build]"

      - name: Test
        run: python -m unittest discover -s tests

      - name: Build
        run: python -m PyInstaller --clean --noconfirm "packaging/NTE History Exporter.spec"

      - name: Smoke Test
        run: ./dist/nte-history-exporter --help

      - name: Upload Artifact
        uses: actions/upload-artifact@v6
        with:
          name: linux
          path: dist/nte-history-exporter

  build-macos:
    name: Build Macos
    needs: validate-release
    runs-on: macos-15-intel

    steps:
      - name: Checkout Source Code
        uses: actions/checkout@v5

      - name: Get Python
        uses: actions/setup-python@v6
        with:
          python-version: "3.12"

      - name: Install Dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install -e ".[build]"

      - name: Test
        run: python -m unittest discover -s tests

      - name: Build
        run: python -m PyInstaller --clean --noconfirm "packaging/NTE History Exporter.spec"

      - name: Smoke Test
        run: ./dist/nte-history-exporter --help

      - name: Upload Artifact
        uses: actions/upload-artifact@v6
        with:
          name: macos
          path: dist/nte-history-exporter

  release:
    name: Release
    needs: [build-windows, build-linux, build-macos]
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Source Code
        uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Get package version
        id: package-version
        run: |
          version="$(python -c "import tomllib; print(tomllib.load(open('pyproject.toml', 'rb'))['project']['version'])")"
          echo "version=$version" >> "$GITHUB_OUTPUT"

      - name: Build Release Notes
        run: |
          version="${{ steps.package-version.outputs.version }}"
          if [ "${{ github.ref }}" = "refs/heads/main" ]; then
            tag="v${version}"
          else
            safe_ref="$(echo "${{ github.ref_name }}" | tr '/_' '--' | tr -cd '[:alnum:].-')"
            tag="v${version}-${safe_ref}.${GITHUB_RUN_NUMBER}"
          fi
          repo_url="${{ github.server_url }}/${{ github.repository }}"
          previous_tag="$(git tag --merged HEAD --sort=-v:refname | grep -E '^v[0-9]+(\.[0-9]+)*$' | grep -vx "$tag" | head -n 1 || true)"

          {
            echo "Release ${tag}"
            echo
            echo "## Commits included in this release"
            echo
            if [ -n "$previous_tag" ]; then
              echo "Changes since ${previous_tag}:"
              commit_range="${previous_tag}..HEAD"
            else
              commit_range="HEAD"
            fi
            echo

            while IFS= read -r commit; do
              short_hash="$(git show -s --format='%h' "$commit")"
              title="$(git show -s --format='%s' "$commit")"
              description="$(git show -s --format='%b' "$commit")"

              echo "- [\`${short_hash}\`](${repo_url}/commit/${commit}) ${title}"
              if [ -n "$description" ]; then
                echo "$description" | sed 's/^/    /'
              fi
              echo
            done < <(git rev-list "$commit_range")
          } > release-notes.md

      - name: Download Artifacts
        uses: actions/download-artifact@v7

      - name: Rename
        run: |
          version="${{ steps.package-version.outputs.version }}"
          cp windows/nte-history-exporter.exe nte-history-exporter.exe
          zip nte-history-exporter-v${version}-x86_64-pc-windows-msvc.zip nte-history-exporter.exe
          cp linux/nte-history-exporter nte-history-exporter
          chmod +x nte-history-exporter
          cp nte-history-exporter nte-history-exporter-linux
          zip nte-history-exporter-v${version}-x86_64-unknown-linux-gnu.zip nte-history-exporter
          cp macos/nte-history-exporter nte-history-exporter
          chmod +x nte-history-exporter
          cp nte-history-exporter nte-history-exporter-macos
          zip nte-history-exporter-v${version}-x86_64-apple-darwin.zip nte-history-exporter

      - name: Release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          version="${{ steps.package-version.outputs.version }}"
          if [ "${{ github.ref }}" = "refs/heads/main" ]; then
            tag="v${version}"
            prerelease_args=()
          else
            safe_ref="$(echo "${{ github.ref_name }}" | tr '/_' '--' | tr -cd '[:alnum:].-')"
            tag="v${version}-${safe_ref}.${GITHUB_RUN_NUMBER}"
            prerelease_args=(--prerelease)
          fi
          files=(
            nte-history-exporter.exe
            nte-history-exporter-linux
            nte-history-exporter-macos
            nte-history-exporter-v${version}-x86_64-pc-windows-msvc.zip
            nte-history-exporter-v${version}-x86_64-unknown-linux-gnu.zip
            nte-history-exporter-v${version}-x86_64-apple-darwin.zip
          )

          if git rev-parse -q --verify "refs/tags/${tag}" >/dev/null; then
            echo "::error title=Release tag already exists::${tag} already exists. Bump project.version in pyproject.toml before running the release workflow."
            exit 1
          fi

          if gh release view "$tag" >/dev/null 2>&1; then
            echo "::error title=GitHub release already exists::${tag} already has a GitHub release. Bump project.version in pyproject.toml before running the release workflow."
            exit 1
          fi

          gh release create "$tag" "${files[@]}" --title "${tag} Release" --notes-file release-notes.md "${prerelease_args[@]}"