name: Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        include:
          - goos: linux
            goarch: amd64
            suffix: ''
            archive: tar.gz
          - goos: windows
            goarch: amd64
            suffix: '.exe'
            archive: zip

    steps:
    - uses: actions/checkout@v6

    - name: Set up Go
      uses: actions/setup-go@v6
      with:
        go-version: 1.25

    - name: Get version
      id: version
      run: echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT

    - name: Build
      run: |
        env GOOS=${{ matrix.goos }} GOARCH=${{ matrix.goarch }} go build -v -ldflags "-X main.Version=${{ steps.version.outputs.VERSION }}" -o erupe-ce${{ matrix.suffix }}

    - name: Prepare release directory
      run: |
        mkdir -p release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}
        cp erupe-ce${{ matrix.suffix }} release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}/
        cp config.json release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}/
        cp -r www/ release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}/
        cp -r savedata/ release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}/
        cp -r bin/ release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}/
        cp -r bundled-schema/ release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}/
        cp -r schemas/ release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}/
        [ -f README.md ] && cp README.md release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}/ || true
        [ -f CHANGELOG.md ] && cp CHANGELOG.md release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}/ || true

    - name: Create tar.gz archive
      if: matrix.archive == 'tar.gz'
      run: |
        cd release
        tar -czvf erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}

    - name: Create zip archive
      if: matrix.archive == 'zip'
      run: |
        cd release
        zip -r erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}.zip erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}

    - name: Upload artifact
      uses: actions/upload-artifact@v5
      with:
        name: erupe-ce-${{ matrix.goos }}-${{ matrix.goarch }}
        path: release/erupe-ce-${{ steps.version.outputs.VERSION }}-${{ matrix.goos }}-${{ matrix.goarch }}.${{ matrix.archive }}

  release:
    needs: build
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v6

    - name: Get version
      id: version
      run: echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT

    - name: Download all artifacts
      uses: actions/download-artifact@v5
      with:
        path: artifacts

    - name: Extract changelog for release
      id: changelog
      run: |
        if [ -f CHANGELOG.md ]; then
          # Extract content between the version header and the next version header
          VERSION="${{ steps.version.outputs.VERSION }}"
          # Remove 'v' prefix for changelog matching
          VERSION_NUM="${VERSION#v}"

          # Try to extract section for this version, fall back to Unreleased
          NOTES=$(awk "/^## \[?${VERSION_NUM}\]?|^## \[?${VERSION}\]?/,/^## \[?[0-9]/" CHANGELOG.md | head -n -1)

          if [ -z "$NOTES" ]; then
            NOTES=$(awk '/^## \[?Unreleased\]?/,/^## \[?[0-9]/' CHANGELOG.md | head -n -1)
          fi

          if [ -z "$NOTES" ]; then
            NOTES="Release ${VERSION}"
          fi

          # Write to file for multiline support
          echo "$NOTES" > release_notes.md
        else
          echo "Release ${{ steps.version.outputs.VERSION }}" > release_notes.md
        fi

    - name: Create GitHub Release
      uses: softprops/action-gh-release@v2
      with:
        name: Erupe ${{ steps.version.outputs.VERSION }}
        body_path: release_notes.md
        draft: false
        prerelease: ${{ contains(steps.version.outputs.VERSION, '-rc') || contains(steps.version.outputs.VERSION, '-beta') || contains(steps.version.outputs.VERSION, '-alpha') }}
        files: |
          artifacts/**/*
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}