# Build and deploy MkDocs documentation to GitHub Pages (https://rfdetr.roboflow.com/)
# using mike for versioned docs.
#
# Deploy matrix:
#   push develop                    → mike deploy develop        (rfdetr.roboflow.com/develop/)
#   push release/latest             → mike deploy latest         (rfdetr.roboflow.com/latest/)
#   release published (stable/post) → mike deploy <base>          (rfdetr.roboflow.com/<base>/; .postN stripped; RC/pre-release skipped)
#   workflow_dispatch target=develop         → same as push develop
#   workflow_dispatch target=release/latest  → same as push release/latest (→ latest alias)
#   workflow_dispatch target=<version tag>   → mike deploy <tag>
#
# Every deploy also:
#   - Copies robots.txt, llms.txt, llms-full.txt to gh-pages root
#   - Regenerates sitemap.xml normalising versioned paths to /latest/
#   - Pings IndexNow (Bing) with canonical /latest/ URLs

name: Build and Publish Docs

on:
  push:
    branches: ["release/latest", "develop"]
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      target:
        description: "Deploy target: 'develop', 'release/latest', or a version tag (e.g. '1.2.3'). Determines both the checkout ref and the mike version label."
        required: true
        default: "release/latest"

# Ensure only one concurrent deployment
concurrency:
  group: ${{ github.workflow }}-${{ github.event_name == 'push' && github.ref_name || github.event_name == 'workflow_dispatch' && inputs.target || github.event_name == 'release' && github.event.release.tag_name || github.ref_name }}
  cancel-in-progress: true

# Restrict permissions by default
permissions:
  contents: write # Required for committing to gh-pages
  pages: write # Required for deploying to Pages
  pull-requests: write # Required for PR comments

jobs:
  doc-deploy:
    name: Publish Docs
    runs-on: ubuntu-latest
    environment:
      name: documentation-deployment
      url: https://rfdetr.roboflow.com/
    timeout-minutes: 10
    steps:
      - name: 🔍 Validate dispatch target
        if: github.event_name == 'workflow_dispatch'
        run: |
          TARGET="${{ inputs.target }}"
          if [ "$TARGET" = "develop" ] || [ "$TARGET" = "release/latest" ]; then
            echo "✓ Target '$TARGET' is valid"
          elif echo "$TARGET" | grep -qE '^[0-9]+\.[0-9]+\.[0-9]+(\.post[0-9]+)?$'; then
            echo "✓ Target '$TARGET' is valid (version tag)"
          else
            echo "::error::Invalid target '$TARGET'. Must be 'develop', 'release/latest', or a version tag (e.g. '1.2.3' or '1.2.3.post1')"
            exit 1
          fi

      - name: 📥 Checkout the repository
        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
        with:
          fetch-depth: 0
          ref: ${{ inputs.target || github.ref }}

      - name: 🐍 Install uv and set Python
        uses: astral-sh/setup-uv@61cb8a9741eeb8a550a1b8544337180c0fc8476b # v7.2.0
        with:
          python-version: "3.10"
          activate-environment: true

      - name: 🏗️ Install dependencies
        # Install PyTorch CPU-only first (UV_TORCH_BACKEND=cpu works with 'uv pip')
        run: uv pip install -e ".[plus]" --group docs

      - name: ⚙️ Configure git for github-actions
        run: |
          git config --global user.name "${{ github.actor }}"
          git config --global user.email "${{ github.actor }}@users.noreply.github.com"

      - name: 🚀 Deploy Development Docs
        if: github.event_name == 'push' && github.ref == 'refs/heads/develop'
        env:
          MKDOCS_GIT_COMMITTERS_APIKEY: ${{ secrets.GITHUB_TOKEN }}
        run: uv run --no-sync mike deploy --push develop

      - name: 🚀 Deploy Latest Branch Docs
        if: github.event_name == 'push' && github.ref == 'refs/heads/release/latest'
        env:
          MKDOCS_GIT_COMMITTERS_APIKEY: ${{ secrets.GITHUB_TOKEN }}
        run: uv run --no-sync mike deploy --push --update-aliases latest

      - name: 🚀 Deploy Release Docs
        if: github.event_name == 'release' && github.event.action == 'published' && !github.event.release.prerelease
        env:
          MKDOCS_GIT_COMMITTERS_APIKEY: ${{ secrets.GITHUB_TOKEN }}
        run: |
          TAG="${{ github.event.release.tag_name }}"
          DOC_VERSION="${TAG%.post*}"
          uv run --no-sync mike deploy --push "$DOC_VERSION"

      - name: 🚀 Deploy Docs (workflow_dispatch)
        if: github.event_name == 'workflow_dispatch'
        env:
          MKDOCS_GIT_COMMITTERS_APIKEY: ${{ secrets.GITHUB_TOKEN }}
        run: |
          TARGET="${{ inputs.target }}"
          if [ "$TARGET" = "develop" ]; then
            uv run --no-sync mike deploy --push develop
          elif [ "$TARGET" = "release/latest" ]; then
            uv run --no-sync mike deploy --push --update-aliases latest
          else
            DOC_VERSION="${TARGET%.post*}"
            uv run --no-sync mike deploy --push "$DOC_VERSION"
          fi

      - name: 🏗️ Build docs for artifact
        run: uv run --no-sync mkdocs build

      - name: 📤 Upload docs artifact
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
        with:
          name: docs-site
          path: site/
          retention-days: 7

      - name: Deploy root static files to gh-pages
        if: >-
          (github.event_name == 'push' &&
           (github.ref == 'refs/heads/develop' ||
            github.ref == 'refs/heads/release/latest')) ||
          (github.event_name == 'release' &&
           github.event.action == 'published' &&
           !github.event.release.prerelease) ||
          github.event_name == 'workflow_dispatch'
        run: |
          cp docs/root-static/robots.txt /tmp/robots.txt
          cp docs/root-static/llms.txt /tmp/llms.txt
          cp docs/root-static/llms-full.txt /tmp/llms-full.txt
          cp docs/root-static/cace9ef287cb8d641db90d4295fcb1e1.txt /tmp/indexnow.txt
          git fetch origin gh-pages:refs/remotes/origin/gh-pages
          git checkout -B gh-pages origin/gh-pages
          cp /tmp/robots.txt robots.txt
          cp /tmp/llms.txt llms.txt
          cp /tmp/llms-full.txt llms-full.txt
          cp /tmp/indexnow.txt cace9ef287cb8d641db90d4295fcb1e1.txt
          git add robots.txt llms.txt llms-full.txt cace9ef287cb8d641db90d4295fcb1e1.txt
          # Normalize versioned paths (/X.Y.Z/) to /latest/ so sitemap URLs are
          # not blocked by the User-agent: * Disallow rules in robots.txt.
          # latest/ may be a mike alias redirect (no sitemap.xml) — fall back to highest versioned dir.
          SITEMAP_SRC=""
          if [ -f latest/sitemap.xml ]; then
            SITEMAP_SRC="latest/sitemap.xml"
          else
            LATEST_VER=$(ls -d [0-9]* 2>/dev/null | grep -E '^[0-9]+\.[0-9]+' | sort -V | tail -1)
            if [ -n "$LATEST_VER" ] && [ -f "$LATEST_VER/sitemap.xml" ]; then
              SITEMAP_SRC="$LATEST_VER/sitemap.xml"
            elif [ -f develop/sitemap.xml ]; then
              SITEMAP_SRC="develop/sitemap.xml"
            fi
          fi
          if [ -n "$SITEMAP_SRC" ]; then
            sed 's|rfdetr\.roboflow\.com/[^/]*/|rfdetr.roboflow.com/latest/|g' "$SITEMAP_SRC" > sitemap.xml
            git add sitemap.xml
          fi
          git diff --staged --quiet || git commit -m "chore: update root static files and sitemap"
          git push origin gh-pages || (git pull --rebase origin gh-pages && git push origin gh-pages)

      # IndexNow key: cace9ef287cb8d641db90d4295fcb1e1
      # Key file served at https://rfdetr.roboflow.com/cace9ef287cb8d641db90d4295fcb1e1.txt
      # (deployed via "Deploy root static files" step above).
      # To rotate: generate new key, update docs/root-static/<key>.txt, replace key string here.
      - name: 📡 Notify IndexNow (Bing)
        if: >-
          (github.event_name == 'push' &&
           (github.ref == 'refs/heads/develop' ||
            github.ref == 'refs/heads/release/latest')) ||
          (github.event_name == 'release' &&
           github.event.action == 'published' &&
           !github.event.release.prerelease) ||
          github.event_name == 'workflow_dispatch'
        run: |
          curl -s -o /dev/null -w "%{http_code}" -X POST "https://api.indexnow.org/IndexNow" \
            -H "Content-Type: application/json; charset=utf-8" \
            -d '{
              "host": "rfdetr.roboflow.com",
              "key": "cace9ef287cb8d641db90d4295fcb1e1",
              "keyLocation": "https://rfdetr.roboflow.com/cace9ef287cb8d641db90d4295fcb1e1.txt",
              "urlList": [
                "https://rfdetr.roboflow.com/",
                "https://rfdetr.roboflow.com/latest/",
                "https://rfdetr.roboflow.com/latest/learn/install/",
                "https://rfdetr.roboflow.com/latest/learn/pretrained/",
                "https://rfdetr.roboflow.com/latest/learn/run/detection/",
                "https://rfdetr.roboflow.com/latest/learn/run/segmentation/",
                "https://rfdetr.roboflow.com/latest/learn/train/",
                "https://rfdetr.roboflow.com/latest/learn/export/",
                "https://rfdetr.roboflow.com/latest/learn/deploy/",
                "https://rfdetr.roboflow.com/latest/learn/benchmarks/"
              ]
            }' || true

      - name: Minimize uv cache
        run: uv cache prune --ci