name: Release

on:
  # Fires when release-please (or a maintainer) publishes a GitHub Release.
  # Using the `release` event instead of `push: tags` is necessary because
  # tags created by the release-please workflow use GITHUB_TOKEN, which by
  # design does not trigger downstream workflows — that caused v0.9.4 to
  # ship with no binary assets (see issue #424).
  release:
    types: [published]
  # Manual backfill: run against a specific existing tag (e.g. v0.9.4) to
  # upload assets to an already-published release.
  workflow_dispatch:
    inputs:
      tag:
        description: "Existing tag to build and attach assets to (e.g. v0.9.4)"
        required: true
        type: string

permissions:
  contents: write
  id-token: write
  actions: read

env:
  CARGO_TERM_COLOR: always
  BINARY: llmfit

jobs:
  build:
    strategy:
      matrix:
        include:
          # Linux x86_64 (static musl)
          - target: x86_64-unknown-linux-musl
            os: ubuntu-latest
            use-cross: true

          # Linux ARM64 (static musl)
          - target: aarch64-unknown-linux-musl
            os: ubuntu-latest
            use-cross: true

          # Linux x86_64 (glibc)
          - target: x86_64-unknown-linux-gnu
            os: ubuntu-latest
            use-cross: false

          # Linux ARM64 (glibc)
          - target: aarch64-unknown-linux-gnu
            os: ubuntu-latest
            use-cross: true

          # Linux RISCV64 (glibc)
          - target: riscv64gc-unknown-linux-gnu
            os: ubuntu-latest
            use-cross: true

          # macOS Intel (cross-compiled from ARM64 runner)
          - target: x86_64-apple-darwin
            os: macos-latest
            use-cross: false

          # macOS Apple Silicon
          - target: aarch64-apple-darwin
            os: macos-latest
            use-cross: false

          # Windows x86_64
          - target: x86_64-pc-windows-msvc
            os: windows-latest
            use-cross: false

          # Windows ARM64
          - target: aarch64-pc-windows-msvc
            os: windows-latest
            use-cross: false

    runs-on: ${{ matrix.os }}

    steps:
      - name: Checkout
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          ref: ${{ inputs.tag || github.ref }}

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

      - name: Build web dashboard assets
        run: |
          cd llmfit-web
          npm ci
          npm run build

      - name: Install cross
        if: matrix.use-cross
        run: cargo install cross --version 0.2.5

      - name: Build
        shell: bash
        run: |
          if [ "${{ matrix.use-cross }}" = "true" ]; then
            cross build --release --target ${{ matrix.target }}
          else
            cargo build --release --target ${{ matrix.target }}
          fi

      - name: Package
        shell: bash
        run: |
          TAG="${{ inputs.tag || github.ref_name }}"
          ASSET_NAME="${BINARY}-${TAG}-${{ matrix.target }}"
          STAGING="${RUNNER_TEMP}/${ASSET_NAME}"
          mkdir -p "${STAGING}"

          if [[ "${{ matrix.target }}" == *"windows"* ]]; then
            EXE_EXT=".exe"
            ARCHIVE_EXT=".zip"
            COMPRESS_CMD="7z a ${ASSET_NAME}${ARCHIVE_EXT} ${ASSET_NAME}"
          else
            EXE_EXT=""
            ARCHIVE_EXT=".tar.gz"
            COMPRESS_CMD="tar czf ${ASSET_NAME}${ARCHIVE_EXT} ${ASSET_NAME}"
          fi

          cp "target/${{ matrix.target }}/release/${BINARY}${EXE_EXT}" "${STAGING}/"
          cp README.md LICENSE "${STAGING}/" 2>/dev/null || true

          cd "${RUNNER_TEMP}"
          $COMPRESS_CMD

          # Generate per-asset SHA256 checksum file (consistent format for both tools)
          if command -v sha256sum >/dev/null 2>&1; then
            sha256sum "${ASSET_NAME}${ARCHIVE_EXT}" | awk '{print $1 "  " $2}' > "${ASSET_NAME}${ARCHIVE_EXT}.sha256"
          elif command -v shasum >/dev/null 2>&1; then
            shasum -a 256 "${ASSET_NAME}${ARCHIVE_EXT}" | awk '{print $1 "  " $2}' > "${ASSET_NAME}${ARCHIVE_EXT}.sha256"
          fi

          echo "ASSET=${ASSET_NAME}${ARCHIVE_EXT}" >> "$GITHUB_ENV"
          echo "ASSET_PATH=${RUNNER_TEMP}/${ASSET_NAME}${ARCHIVE_EXT}" >> "$GITHUB_ENV"
          echo "CHECKSUM_PATH=${RUNNER_TEMP}/${ASSET_NAME}${ARCHIVE_EXT}.sha256" >> "$GITHUB_ENV"

      - name: Upload artifact
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: ${{ env.ASSET }}
          path: |
            ${{ env.ASSET_PATH }}
            ${{ env.CHECKSUM_PATH }}

  # Sign Windows executables via SignPath (Authenticode).
  # Uses the test-signing policy initially; switch to release-signing
  # after SignPath reviews the setup and provisions the production cert.
  sign-windows:
    needs: build
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target:
          - x86_64-pc-windows-msvc
          - aarch64-pc-windows-msvc
    steps:
      - name: Determine asset name
        id: asset-name
        shell: bash
        run: |
          TAG="${{ inputs.tag || github.ref_name }}"
          ASSET="llmfit-${TAG}-${{ matrix.target }}"
          echo "zip=${ASSET}.zip" >> "$GITHUB_OUTPUT"
          echo "dir=${ASSET}" >> "$GITHUB_OUTPUT"

      - name: Download unsigned artifact
        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: ${{ steps.asset-name.outputs.zip }}
          path: unsigned

      - name: Extract exe from zip
        shell: bash
        run: |
          cd unsigned
          unzip "${{ steps.asset-name.outputs.zip }}"
          # Move the exe to a clean directory for signing
          mkdir -p ../to-sign
          cp "${{ steps.asset-name.outputs.dir }}/llmfit.exe" ../to-sign/

      - name: Upload exe for SignPath
        id: upload-for-signing
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: ${{ steps.asset-name.outputs.zip }}-unsigned
          path: to-sign/llmfit.exe

      - name: Submit signing request to SignPath
        uses: signpath/github-action-submit-signing-request@v2
        with:
          api-token: ${{ secrets.SIGNPATH_API_TOKEN }}
          organization-id: ${{ secrets.SIGNPATH_ORGANIZATION_ID }}
          project-slug: ${{ secrets.SIGNPATH_PROJECT_SLUG }}
          signing-policy-slug: ${{ secrets.SIGNPATH_SIGNING_POLICY_SLUG }}
          artifact-configuration-slug: ${{ secrets.SIGNPATH_ARTIFACT_CONFIGURATION_SLUG }}
          github-artifact-id: ${{ steps.upload-for-signing.outputs.artifact-id }}
          wait-for-completion: true
          output-artifact-directory: signed

      - name: Repackage signed exe into zip
        shell: bash
        run: |
          # Replace the unsigned exe with the signed one
          cp signed/llmfit.exe "unsigned/${{ steps.asset-name.outputs.dir }}/llmfit.exe"
          cd unsigned
          zip -r "../${{ steps.asset-name.outputs.zip }}" "${{ steps.asset-name.outputs.dir }}"

      - name: Replace unsigned artifact with signed one
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: ${{ steps.asset-name.outputs.zip }}
          path: ${{ steps.asset-name.outputs.zip }}
          overwrite: true

      - name: Regenerate checksum for signed zip
        shell: bash
        run: |
          sha256sum "${{ steps.asset-name.outputs.zip }}" | awk '{print $1 "  " $2}' > "${{ steps.asset-name.outputs.zip }}.sha256"

      - name: Upload signed checksum
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: ${{ steps.asset-name.outputs.zip }}.sha256
          path: ${{ steps.asset-name.outputs.zip }}.sha256
          overwrite: true

  release:
    needs: [build, sign-windows]
    # Run even if sign-windows is skipped (e.g. secrets not yet configured)
    if: always() && needs.build.result == 'success'
    runs-on: ubuntu-latest

    steps:
      - name: Download all artifacts
        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          path: artifacts

      - name: Create GitHub Release
        uses: softprops/action-gh-release@718ea10b132b3b2eba29c1007bb80653f286566b # v3.0.1
        with:
          tag_name: ${{ inputs.tag || github.ref_name }}
          generate_release_notes: true
          files: |
            artifacts/**/*.tar.gz
            artifacts/**/*.zip
            artifacts/**/*.sha256

  publish-python:
    needs: release
    # Run when release succeeds, even if upstream sign-windows was skipped or failed
    if: always() && needs.release.result == 'success'
    runs-on: ubuntu-latest
    environment:
      name: pypi
      url: https://pypi.org/p/llmfit/
    permissions:
      id-token: write

    steps:
      - name: Checkout
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          ref: ${{ inputs.tag || github.ref }}

      - name: Set up uv
        uses: astral-sh/setup-uv@v8.2.0

      - name: Build Python wheels
        shell: bash
        env:
          TAG: ${{ inputs.tag || github.ref_name }}
        run: |
          # Each entry: python_platform_tag:rust_target:binary_name:archive_ext
          # Must stay in sync with TARGET_CONFIGS in llmfit-python/hatch_build.py.
          TARGETS=(
            "manylinux_2_17_x86_64:x86_64-unknown-linux-gnu:llmfit:tar.gz"
            "manylinux_2_17_aarch64:aarch64-unknown-linux-gnu:llmfit:tar.gz"
            "manylinux_2_39_riscv64:riscv64gc-unknown-linux-gnu:llmfit:tar.gz"
            "musllinux_1_2_x86_64:x86_64-unknown-linux-musl:llmfit:tar.gz"
            "musllinux_1_2_aarch64:aarch64-unknown-linux-musl:llmfit:tar.gz"
            "macosx_10_12_x86_64:x86_64-apple-darwin:llmfit:tar.gz"
            "macosx_11_0_arm64:aarch64-apple-darwin:llmfit:tar.gz"
            "win_amd64:x86_64-pc-windows-msvc:llmfit.exe:zip"
            "win_arm64:aarch64-pc-windows-msvc:llmfit.exe:zip"
          )
          BASE_URL="https://github.com/AlexsJones/llmfit/releases/download/${TAG}"
          mkdir -p dist/
          for entry in "${TARGETS[@]}"; do
            IFS=: read -r py_tag rust_target binary_name archive_ext <<< "$entry"
            ASSET="llmfit-${TAG}-${rust_target}"
            ARCHIVE="${ASSET}.${archive_ext}"
            EXPECTED=$(curl -fsSL "${BASE_URL}/${ARCHIVE}.sha256" | awk '{print $1}')
            ACTUAL=$(curl -fsSL "${BASE_URL}/${ARCHIVE}" | tee "${ARCHIVE}" | sha256sum | awk '{print $1}')
            if [ "${ACTUAL}" != "${EXPECTED}" ]; then
              echo "Checksum mismatch for ${ARCHIVE}: expected ${EXPECTED}, got ${ACTUAL}"
              exit 1
            fi
            echo "Checksum OK for ${ARCHIVE}"
            if [ "${archive_ext}" = "tar.gz" ]; then
              tar -xzf "${ARCHIVE}" "${ASSET}/${binary_name}"
            else
              unzip "${ARCHIVE}" "${ASSET}/${binary_name}"
            fi
            dest="target/${rust_target}/release"
            mkdir -p "${dest}"
            cp "${ASSET}/${binary_name}" "${dest}/${binary_name}"
            chmod +x "${dest}/${binary_name}"
            rm -f "${ARCHIVE}"
            rm -rf "${ASSET}"
            LLMFIT_PYTHON_PLATFORM_TAG="${py_tag}" uv build --wheel --out-dir=dist/ llmfit-python/
          done

      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1

  publish-crate:
    needs: release
    if: always() && needs.release.result == 'success'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          ref: ${{ inputs.tag || github.ref }}

      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable

      # Pass the registry token via env rather than --token: argv is
      # visible in the process listing on the runner, and GitHub secret
      # masking only covers log output. cargo reads CARGO_REGISTRY_TOKEN
      # automatically.
      - name: Publish llmfit-core to crates.io
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
        run: cargo publish -p llmfit-core

      - name: Wait for crates.io index update
        run: sleep 30

      - name: Publish llmfit to crates.io
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
        run: cargo publish -p llmfit

  update-homebrew:
    needs: release
    if: always() && needs.release.result == 'success'
    runs-on: ubuntu-latest

    steps:
      - name: Checkout tap
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          repository: AlexsJones/homebrew-llmfit
          token: ${{ secrets.HOMEBREW_TAP_TOKEN }}
          path: homebrew-tap

      - name: Download release assets and update formula
        env:
          TAG: ${{ inputs.tag || github.ref_name }}
        run: |
          VERSION="${TAG#v}"

          # Download the four tarballs and compute SHA256
          declare -A SHAS
          for target in aarch64-apple-darwin x86_64-apple-darwin aarch64-unknown-linux-musl x86_64-unknown-linux-musl; do
            URL="https://github.com/AlexsJones/llmfit/releases/download/${TAG}/llmfit-${TAG}-${target}.tar.gz"
            echo "Downloading ${URL}..."
            SHA=$(curl -fsSL "$URL" | shasum -a 256 | awk '{print $1}')
            SHAS[$target]="$SHA"
            echo "${target}: ${SHA}"
          done

          # Generate the formula
          cat > homebrew-tap/Formula/llmfit.rb << RUBY
          class Llmfit < Formula
            desc "Terminal tool that right-sizes LLM models to your system hardware"
            homepage "https://github.com/AlexsJones/llmfit"
            version "${VERSION}"
            license "MIT"

            on_macos do
              if Hardware::CPU.arm?
                url "https://github.com/AlexsJones/llmfit/releases/download/v#{version}/llmfit-v#{version}-aarch64-apple-darwin.tar.gz"
                sha256 "${SHAS[aarch64-apple-darwin]}"
              else
                url "https://github.com/AlexsJones/llmfit/releases/download/v#{version}/llmfit-v#{version}-x86_64-apple-darwin.tar.gz"
                sha256 "${SHAS[x86_64-apple-darwin]}"
              end
            end

            on_linux do
              if Hardware::CPU.arm?
                url "https://github.com/AlexsJones/llmfit/releases/download/v#{version}/llmfit-v#{version}-aarch64-unknown-linux-musl.tar.gz"
                sha256 "${SHAS[aarch64-unknown-linux-musl]}"
              else
                url "https://github.com/AlexsJones/llmfit/releases/download/v#{version}/llmfit-v#{version}-x86_64-unknown-linux-musl.tar.gz"
                sha256 "${SHAS[x86_64-unknown-linux-musl]}"
              end
            end

            def install
              bin.install "llmfit"
            end

            test do
              assert_match "llmfit", shell_output("#{bin}/llmfit --help")
            end
          end
          RUBY

          # Fix heredoc indentation
          sed -i 's/^          //' homebrew-tap/Formula/llmfit.rb

      - name: Commit and push
        run: |
          cd homebrew-tap
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add Formula/llmfit.rb
          git commit -m "Update llmfit to ${TAG}"
          git push