name: Release

on:
  push:
    tags:
      - "v*"

permissions:
  contents: write

jobs:
  notes:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Prepare Release Notes
        shell: bash
        run: |
          set -euo pipefail
          tag="${GITHUB_REF_NAME#v}"
          notes_file=".github/release-notes.md"
          if grep -q "^## \\[${tag}\\]" CHANGELOG.md; then
            awk -v ver="$tag" '
              $0 ~ "^## \\["ver"\\]" {in=1; next}
              in && $0 ~ "^## \\[" {exit}
              in {print}
            ' CHANGELOG.md | sed -e '${/^$/d;}' > "$notes_file"
          else
            echo "No CHANGELOG section for $tag." > "$notes_file"
            git log -1 --pretty=format:"%s%n%n%b" >> "$notes_file"
          fi

      - name: Upload Notes Artifact
        uses: actions/upload-artifact@v4
        with:
          name: release-notes
          path: .github/release-notes.md

  build:
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            target: x86_64-unknown-linux-gnu
            asset_name: dcr-x86_64-unknown-linux-gnu
          - os: macos-15-intel
            target: x86_64-apple-darwin
            asset_name: dcr-x86_64-apple-darwin
          - os: macos-15
            target: aarch64-apple-darwin
            asset_name: dcr-aarch64-apple-darwin
          - os: windows-latest
            target: x86_64-pc-windows-msvc
            asset_name: dcr-x86_64-pc-windows-msvc.exe

    runs-on: ${{ matrix.os }}
    needs: notes
    steps:
      - uses: actions/checkout@v4
      - name: Download Release Notes
        uses: actions/download-artifact@v4
        with:
          name: release-notes
          path: .github

      - name: Setup Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}

      - name: Build
        run: cargo build --release --target ${{ matrix.target }}

      - name: Prepare Artifact (Unix)
        if: runner.os != 'Windows'
        shell: bash
        run: |
          cp target/${{ matrix.target }}/release/dcr ${{ matrix.asset_name }}

      - name: Prepare Artifact (Windows)
        if: runner.os == 'Windows'
        shell: pwsh
        run: |
          Copy-Item "target/${{ matrix.target }}/release/dcr.exe" "${{ matrix.asset_name }}"

      - name: Upload Release Asset
        uses: softprops/action-gh-release@v2
        with:
          files: ${{ matrix.asset_name }}
          body_path: .github/release-notes.md