# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0

name: Sync Docs Website

on:
  workflow_call:
    inputs:
      operation:
        description: "Whether to sync or remove a docs snapshot"
        required: true
        type: string
      channel:
        description: "Docs channel to update or remove"
        required: true
        type: string
      source_ref:
        description: "Source commit SHA, branch, or tag to snapshot when operation=sync"
        required: false
        type: string
      release_version:
        description: "Release version used to order mutable channels"
        required: false
        type: string
      version_slug:
        description: "Version slug when channel=version"
        required: false
        type: string
      display_name:
        description: "Optional version selector display name"
        required: false
        type: string
      availability:
        description: "Optional Fern availability status"
        required: false
        type: string
      publish:
        description: "Publish production docs after syncing"
        required: false
        default: false
        type: boolean
      allow_rollback:
        description: "Allow an explicitly requested mutable-channel rollback"
        required: false
        default: false
        type: boolean
    secrets:
      FERN_TOKEN:
        required: false
  workflow_dispatch:
    inputs:
      operation:
        description: "Whether to sync or remove a docs snapshot"
        required: true
        default: sync
        type: choice
        options:
          - sync
          - remove
      channel:
        description: "Docs channel to update or remove"
        required: true
        type: choice
        options:
          - dev
          - latest
          - stable
          - version
      source_ref:
        description: "Source commit SHA, branch, or tag to snapshot when operation=sync"
        required: false
        type: string
      release_version:
        description: "Release version, e.g. 0.1.2 or 0.1.3.dev4"
        required: false
        type: string
      version_slug:
        description: "Version slug when channel=version, e.g. v0.0.36"
        required: false
        type: string
      display_name:
        description: "Optional selector name, e.g. Dev"
        required: false
        type: string
      availability:
        description: "Optional Fern status: beta, deprecated, ga, or stable"
        required: false
        type: string
      publish:
        description: "Publish production docs after syncing"
        required: false
        default: false
        type: boolean
      allow_rollback:
        description: "Allow an explicitly requested mutable-channel rollback"
        required: false
        default: false
        type: boolean

permissions:
  contents: write

concurrency:
  group: docs-website
  cancel-in-progress: false
  queue: max

defaults:
  run:
    shell: bash

jobs:
  sync:
    runs-on: ubuntu-latest
    timeout-minutes: 20
    steps:
      - name: Checkout automation
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          path: automation

      - name: Validate inputs
        # Pass dispatch inputs through env vars rather than interpolating
        # ${{ inputs.* }} directly into the script. source_ref/version_slug are
        # free-form strings, so inlining them would allow shell injection into
        # the runner (e.g. version_slug = "$(...)"). Quoted env vars are inert.
        env:
          OPERATION: ${{ inputs.operation }}
          CHANNEL: ${{ inputs.channel }}
          SOURCE_REF: ${{ inputs.source_ref }}
          RELEASE_VERSION: ${{ inputs.release_version }}
          VERSION_SLUG: ${{ inputs.version_slug }}
        run: |
          set -euo pipefail
          if [[ "$OPERATION" == "sync" && -z "$SOURCE_REF" ]]; then
            echo "source_ref is required when operation=sync" >&2
            exit 1
          fi
          if [[ "$CHANNEL" =~ ^(dev|latest|stable)$ && -z "$RELEASE_VERSION" ]]; then
            echo "release_version is required for dev, latest, and stable channels" >&2
            exit 1
          fi
          if [[ "$CHANNEL" =~ ^(stable|version)$ && -z "$VERSION_SLUG" ]]; then
            echo "version_slug is required for stable and version channels" >&2
            exit 1
          fi

      - name: Checkout source docs
        if: ${{ inputs.operation == 'sync' }}
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ inputs.source_ref }}
          fetch-depth: 0
          path: source

      - name: Checkout docs website branch
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: docs-website
          fetch-depth: 0
          path: docs-website

      - name: Install uv
        uses: astral-sh/setup-uv@ae62891fec2bb8e7d6c99fc78c9fec3a63790f8d # v10.0.0
        with:
          version: "0.10.12"
          python-version: "3.13"

      - name: Update docs snapshot
        # Inputs flow in as quoted env vars to avoid shell injection; see the
        # Validate inputs step above.
        env:
          OPERATION: ${{ inputs.operation }}
          CHANNEL: ${{ inputs.channel }}
          SOURCE_REF: ${{ inputs.source_ref }}
          RELEASE_VERSION: ${{ inputs.release_version }}
          VERSION_SLUG: ${{ inputs.version_slug }}
          DISPLAY_NAME: ${{ inputs.display_name }}
          AVAILABILITY: ${{ inputs.availability }}
          ALLOW_ROLLBACK: ${{ inputs.allow_rollback }}
        run: |
          SOURCE_SHA=""
          if [[ "$OPERATION" == "sync" ]]; then
            SOURCE_SHA=$(git -C source rev-parse HEAD)
          fi
          rollback_args=()
          if [[ "$ALLOW_ROLLBACK" == "true" ]]; then
            rollback_args+=(--allow-rollback)
          fi
          uv run automation/tasks/scripts/sync_docs_website.py \
            --operation "$OPERATION" \
            --source-root source \
            --docs-website-root docs-website \
            --channel "$CHANNEL" \
            --source-ref "$SOURCE_REF" \
            --source-sha "$SOURCE_SHA" \
            --release-version "$RELEASE_VERSION" \
            --version-slug "$VERSION_SLUG" \
            --display-name "$DISPLAY_NAME" \
            --availability "$AVAILABILITY" \
            "${rollback_args[@]}"

      - name: Setup Node.js
        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "24"

      - name: Install Fern CLI
        working-directory: docs-website
        run: |
          FERN_VERSION=$(node -p "require('./fern/fern.config.json').version")
          npm install -g "fern-api@${FERN_VERSION}"

      - name: Validate docs website
        working-directory: docs-website/fern
        run: fern check

      - name: Commit docs website changes
        working-directory: docs-website
        # Inputs flow in as quoted env vars to avoid shell injection (the commit
        # message embeds free-form source_ref/version_slug); see Validate inputs.
        env:
          OPERATION: ${{ inputs.operation }}
          CHANNEL: ${{ inputs.channel }}
          SOURCE_REF: ${{ inputs.source_ref }}
          VERSION_SLUG: ${{ inputs.version_slug }}
        run: |
          set -euo pipefail
          git config user.name "github-actions[bot]"
          # https://api.github.com/users/github-actions%5Bbot%5D
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add .
          if git diff --cached --quiet; then
            echo "No docs website changes to commit."
            exit 0
          fi
          target="$VERSION_SLUG"
          if [[ -z "${target}" ]]; then
            target="$CHANNEL"
          fi
          if [[ "$OPERATION" == "sync" ]]; then
            git commit -m "docs(website): sync ${target} docs from ${SOURCE_REF}"
          else
            git commit -m "docs(website): remove ${target} docs"
          fi
          git push origin HEAD:docs-website

      - name: Publish Fern docs
        if: ${{ inputs.publish }}
        env:
          FERN_TOKEN: ${{ secrets.FERN_TOKEN }}
        working-directory: docs-website/fern
        run: fern generate --docs