name: Release

on:
  push:
    tags: ["v*"]
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always

jobs:
  # --------------------------------------------------------------------------
  # crates.io: three crates in dependency order
  # --------------------------------------------------------------------------
  cargo-publish:
    name: Publish to crates.io
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2

      # Idempotent publishing: if the version is already on crates.io we
      # treat that as success so re-runs of the workflow don't fail.
      - name: Publish wickra-core (idempotent)
        run: |
          out=$(cargo publish -p wickra-core --token "$CARGO_REGISTRY_TOKEN" 2>&1) && echo "$out" \
            || (echo "$out" | grep -q "already uploaded\|already exists" && echo "skip: already published" \
                || (echo "$out"; exit 1))
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

      - name: Wait for crates.io index to refresh
        run: sleep 45

      - name: Publish wickra-data (idempotent)
        run: |
          out=$(cargo publish -p wickra-data --token "$CARGO_REGISTRY_TOKEN" 2>&1) && echo "$out" \
            || (echo "$out" | grep -q "already uploaded\|already exists" && echo "skip: already published" \
                || (echo "$out"; exit 1))
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

      - name: Wait for crates.io index to refresh
        run: sleep 45

      - name: Publish wickra (idempotent)
        run: |
          out=$(cargo publish -p wickra --token "$CARGO_REGISTRY_TOKEN" 2>&1) && echo "$out" \
            || (echo "$out" | grep -q "already uploaded\|already exists" && echo "skip: already published" \
                || (echo "$out"; exit 1))
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

      # Produce .crate files for the GitHub Release attachments. `cargo package`
      # writes them to target/package/<name>-<version>.crate.
      - name: Build .crate files for release attachment
        run: |
          cargo package -p wickra-core --allow-dirty --no-verify
          cargo package -p wickra-data --allow-dirty --no-verify
          cargo package -p wickra      --allow-dirty --no-verify

      - name: Upload .crate files
        uses: actions/upload-artifact@v4
        with:
          name: crate-files
          path: target/package/*.crate

  # --------------------------------------------------------------------------
  # PyPI: cross-platform wheels + sdist
  # --------------------------------------------------------------------------
  python-wheels:
    name: Build wheels (${{ matrix.target }} on ${{ matrix.os }})
    strategy:
      fail-fast: false
      matrix:
        include:
          - { os: ubuntu-latest, target: x86_64, manylinux: auto }
          - { os: ubuntu-latest, target: aarch64, manylinux: auto }
          - { os: macos-latest, target: x86_64, manylinux: auto }
          - { os: macos-latest, target: aarch64, manylinux: auto }
          - { os: windows-latest, target: x64, manylinux: auto }
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"
      - uses: PyO3/maturin-action@v1
        with:
          working-directory: bindings/python
          target: ${{ matrix.target }}
          args: --release --strip --out dist
          manylinux: ${{ matrix.manylinux }}
      - uses: actions/upload-artifact@v4
        with:
          name: wheels-${{ matrix.os }}-${{ matrix.target }}
          path: bindings/python/dist/*

  python-sdist:
    name: Build Python sdist
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: PyO3/maturin-action@v1
        with:
          working-directory: bindings/python
          command: sdist
          args: --out dist
      - uses: actions/upload-artifact@v4
        with:
          name: wheels-sdist
          path: bindings/python/dist/*

  python-publish:
    name: Publish to PyPI
    needs: [python-wheels, python-sdist]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: dist
          pattern: wheels-*
          merge-multiple: true

      - name: Upload to PyPI
        uses: PyO3/maturin-action@v1
        with:
          command: upload
          args: --skip-existing dist/*
        env:
          MATURIN_PYPI_TOKEN: ${{ secrets.PYPI_API_TOKEN }}

  # --------------------------------------------------------------------------
  # npm: per-platform native binaries + main meta-package
  # --------------------------------------------------------------------------
  node-build:
    name: Node build (${{ matrix.target }})
    strategy:
      fail-fast: false
      matrix:
        include:
          - { host: ubuntu-latest, target: x86_64-unknown-linux-gnu }
          - { host: ubuntu-24.04-arm, target: aarch64-unknown-linux-gnu }
          - { host: macos-latest, target: x86_64-apple-darwin }
          - { host: macos-latest, target: aarch64-apple-darwin }
          - { host: windows-latest, target: x86_64-pc-windows-msvc }
          - { host: windows-11-arm, target: aarch64-pc-windows-msvc }
    runs-on: ${{ matrix.host }}
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: "20"

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

      - uses: Swatinem/rust-cache@v2

      - name: Install Node deps
        working-directory: bindings/node
        run: npm install

      - name: Build native module
        working-directory: bindings/node
        run: npx napi build --platform --release --target ${{ matrix.target }}

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: bindings-${{ matrix.target }}
          path: bindings/node/wickra.*.node
          if-no-files-found: error

  node-publish:
    name: Publish to npm
    needs: node-build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: "20"
          registry-url: "https://registry.npmjs.org"

      - name: Install Node deps
        working-directory: bindings/node
        run: npm install

      - name: Download all platform binaries
        uses: actions/download-artifact@v4
        with:
          path: bindings/node/artifacts
          pattern: bindings-*

      # The npm/<platform>/package.json templates are committed to the
      # repo (see bindings/node/npm/), so `napi artifacts` only needs to
      # drop the freshly built .node binary into the matching directory.
      - name: Move binaries into platform package layout
        working-directory: bindings/node
        run: npx napi artifacts --dir artifacts

      # Publish each platform package individually so one failure doesn't kill
      # the others. Skip versions that are already on npm. Tolerate spam-filter
      # 403s with a one-time retry after a short delay (spam detection is
      # often rate-limit-based and clears on the next request).
      - name: Publish platform packages (idempotent)
        working-directory: bindings/node
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: |
          set +e
          version=$(node -p "require('./package.json').version")
          publish_dir() {
            local dir=$1
            local pkg=$(basename "$dir")
            local pkgname="wickra-$pkg"
            local existing
            existing=$(npm view "$pkgname@$version" version 2>/dev/null)
            if [ "$existing" = "$version" ]; then
              echo "::notice::skip $pkgname@$version (already on npm)"
              return 0
            fi
            echo "::group::publish $pkgname@$version"
            (cd "$dir" && npm publish --access public)
            local rc=$?
            echo "::endgroup::"
            if [ "$rc" -ne 0 ]; then
              echo "::warning::first attempt of $pkgname failed (rc=$rc); retrying after 30s"
              sleep 30
              (cd "$dir" && npm publish --access public)
              rc=$?
            fi
            if [ "$rc" -ne 0 ]; then
              echo "::warning::$pkgname could not be published; the main package will skip the missing optional dep"
            fi
            return 0
          }
          for dir in npm/*/; do
            publish_dir "$dir"
          done

      - name: Publish main package to npm (idempotent)
        working-directory: bindings/node
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        shell: bash
        run: |
          # GitHub Actions defaults to `bash -e`. `npm view` on a not-yet-
          # published package returns 1, which would kill the step before
          # we got to publish. Force a graceful empty result instead.
          set +e
          version=$(node -p "require('./package.json').version")
          existing=$(npm view "wickra@$version" version 2>/dev/null)
          if [ "$existing" = "$version" ]; then
            echo "::notice::skip wickra@$version (already on npm)"
            exit 0
          fi
          # --ignore-scripts so any leftover prepublish hooks (which would
          # otherwise try to republish the already-published platform
          # subpackages) can't sabotage the main publish.
          npm publish --access public --ignore-scripts
          rc=$?
          if [ "$rc" -ne 0 ]; then
            echo "::warning::first attempt failed (rc=$rc); retrying after 30s"
            sleep 30
            npm publish --access public --ignore-scripts
            rc=$?
          fi
          exit $rc

      - name: Pack node tarballs for release attachment
        working-directory: bindings/node
        run: |
          # Main package
          npm pack --ignore-scripts
          # Each per-platform package (the binaries were already moved in by napi artifacts)
          for d in npm/*/; do
            (cd "$d" && npm pack)
          done

      - name: Upload Node tarballs
        uses: actions/upload-artifact@v4
        with:
          name: node-tarballs
          path: |
            bindings/node/*.tgz
            bindings/node/npm/*/*.tgz

  # --------------------------------------------------------------------------
  # WASM: wasm-pack build + npm publish (as `wickra-wasm`)
  # --------------------------------------------------------------------------
  wasm-publish:
    name: Publish wickra-wasm to npm
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: "20"
          registry-url: "https://registry.npmjs.org"

      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: wasm32-unknown-unknown

      - uses: jetli/wasm-pack-action@v0.4.0

      - name: Build WASM package (bundler target)
        run: wasm-pack build bindings/wasm --target bundler --release --features panic-hook

      - name: Enrich generated package.json with author + repo metadata
        working-directory: bindings/wasm/pkg
        run: |
          node -e "
            const fs = require('fs');
            const pkg = JSON.parse(fs.readFileSync('package.json'));
            pkg.author = 'kingchenc <kingchencp@gmail.com>';
            pkg.repository = { type: 'git', url: 'https://github.com/kingchenc/wickra' };
            pkg.homepage = 'https://github.com/kingchenc/wickra';
            pkg.bugs = { url: 'https://github.com/kingchenc/wickra/issues' };
            pkg.license = 'SEE LICENSE IN LICENSE';
            fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2));
          "

      - name: Pack wickra-wasm for release attachment
        working-directory: bindings/wasm/pkg
        run: npm pack

      - name: Upload WASM tarball
        uses: actions/upload-artifact@v4
        with:
          name: wasm-tarball
          path: bindings/wasm/pkg/wickra-wasm-*.tgz

      - name: Publish wickra-wasm to npm (idempotent)
        working-directory: bindings/wasm/pkg
        run: |
          out=$(npm publish --access public 2>&1) && echo "$out" \
            || (echo "$out" | grep -q "You cannot publish over" && echo "skip: version already on npm" \
                || (echo "$out"; exit 1))
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

  # --------------------------------------------------------------------------
  # GitHub Release: attach every built artefact to the tag's release page.
  # --------------------------------------------------------------------------
  github-release:
    name: Attach assets to the GitHub Release
    needs: [cargo-publish, python-publish, node-publish, wasm-publish]
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Resolve target tag
        id: tag
        run: |
          if [ "${{ github.event_name }}" = "push" ] && [[ "${{ github.ref }}" == refs/tags/* ]]; then
            tag="${{ github.ref_name }}"
          else
            # workflow_dispatch / non-tag push: attach to the latest v* tag.
            tag=$(git tag --list 'v*' --sort=-v:refname | head -n1)
          fi
          if [ -z "$tag" ]; then
            echo "::error::no v* tag found to attach assets to"
            exit 1
          fi
          echo "tag=$tag" >> "$GITHUB_OUTPUT"
          echo "::notice::attaching assets to release $tag"

      - name: Download all build artifacts
        uses: actions/download-artifact@v4
        with:
          path: artifacts

      - name: Stage release assets
        run: |
          set -e
          mkdir -p release-assets
          # Python wheels + sdist (5 wheel artifacts + 1 sdist artifact).
          find artifacts -type f -name "*.whl" -exec cp {} release-assets/ \;
          find artifacts -type f -name "*.tar.gz" -exec cp {} release-assets/ \;
          # Native Node binaries (one per platform).
          find artifacts -type f -name "*.node" -exec cp {} release-assets/ \;
          # Node npm-pack tarballs (main + per-platform).
          find artifacts -type f -name "wickra-*.tgz" -exec cp {} release-assets/ \;
          # Cargo .crate files (one per workspace member).
          find artifacts -type f -name "*.crate" -exec cp {} release-assets/ \;
          ls -lh release-assets/
          echo "asset-count=$(ls release-assets/ | wc -l)"

      - name: Create / update GitHub Release with assets
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.tag.outputs.tag }}
          name: Wickra ${{ steps.tag.outputs.tag }}
          files: release-assets/*
          generate_release_notes: true
          fail_on_unmatched_files: false
          body: |
            Wickra ${{ github.ref_name }} — streaming-first technical indicators across 4 language registries.

            ### Install

            ```bash
            cargo add wickra
            pip install wickra
            npm install wickra
            npm install wickra-wasm
            ```

            ### Attached assets

            Pre-built artefacts for every supported platform — the same files that
            were uploaded to crates.io, PyPI, and npm by this workflow run.

            - `*.whl` / `wickra-*.tar.gz` — Python wheels + sdist (5 platforms, ABI3 ≥ 3.9)
            - `wickra.*.node` — native Node bindings (linux-x64-gnu, darwin-x64,
              darwin-arm64, win32-x64-msvc)
            - `wickra-*.tgz` — npm-pack tarballs (main package + per-platform subpackages + WASM)
            - `*.crate` — cargo source crates (wickra-core, wickra-data, wickra)

            ### Auto-generated changelog

            See below; GitHub computes it from the commits since the previous tag.