name: Deploy to GitHub Pages, Update notebooks index

on:
  push:
    branches:
      - 'main'
      - 'latest'
  workflow_run:
    workflows: [treon_nightly]
    types:
      - completed
  workflow_dispatch:

concurrency:
  group: 'pages'
  cancel-in-progress: true

jobs:
  build_assets:
    runs-on: ubuntu-20.04
    permissions:
      contents: write
    outputs:
      should_deploy: ${{ steps.check_deploy.outputs.should_deploy }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.ref }}
          repository: ${{ github.event.pull_request.head.repo.full_name }}
          fetch-depth: 0
          token: ${{ secrets.GH_ACTIONS_BOT_TOKEN }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Install Node.js dependencies
        working-directory: ./selector
        shell: bash
        run: npm ci

      - name: Validate all notebooks metadata
        uses: actions/github-script@v7
        with:
          script: |
            const { NotebookMetadataHandler } = await import('${{ github.workspace }}/selector/src/notebook-metadata/notebook-metadata-handler.js');
            const [error, metadataMarkdowns] = NotebookMetadataHandler.validateAll();
            core.summary.addHeading(`Validated Notebooks (${metadataMarkdowns.length})`, '2');
            core.summary.addRaw(metadataMarkdowns.join('\n\n'));
            core.summary.write();
            if (error) {
              core.setFailed(error);
            }

      - name: Build static for GitHub Pages
        working-directory: ./selector
        shell: bash
        run: npm run build
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Check if deploy needed
        id: check_deploy
        uses: actions/github-script@v7
        with:
          script: |
            const { readFile } = require('fs/promises');
            const { checksumFileName } = await import('${{ github.workspace }}/selector/src/shared/build-checksum.js');
            const { owner, repo } = context.repo;
            const { data: { html_url }} = await github.rest.repos.getPages({ owner, repo });
            const deployedChecksum = await fetch(`${html_url}/${checksumFileName}`).then((res) => res.status === 200 ? res.text() : null);
            const currentChecksum = await readFile(`${{ github.workspace }}/selector/dist/openvino_notebooks/${checksumFileName}`, { encoding: 'utf8'});
            const isManualDeploy = context.eventName === 'workflow_dispatch';
            const shouldDeploy = isManualDeploy || currentChecksum !== deployedChecksum;
            core.setOutput('should_deploy', shouldDeploy);

      - name: Upload pages artifact
        if: ${{ steps.check_deploy.outputs.should_deploy == 'true' }}
        uses: actions/upload-pages-artifact@v3
        with:
          path: ./selector/dist/openvino_notebooks

      - name: Generate new notebooks index
        if: ${{ steps.check_deploy.outputs.should_deploy == 'true' }}
        uses: actions/github-script@v7
        with:
          script: |
            const { generateNotebooksIndex } = await import('${{ github.workspace }}/selector/src/shared/generate-notebooks-index.js');
            generateNotebooksIndex(`${{ github.workspace }}/selector/dist/openvino_notebooks/notebooks-metadata-map.json`);

      - name: Commit notebooks index
        if: ${{ steps.check_deploy.outputs.should_deploy == 'true' }}
        shell: bash
        run: |
          git config user.name 'github-actions[bot]'
          git config user.email '41898282+github-actions[bot]@users.noreply.github.com'
          git add ./notebooks/README.md
          git commit -m "Update notebooks index readme file [skip ci]" || echo "Index file is not changed"
          git push

  deploy_github_pages:
    runs-on: ubuntu-20.04
    needs: build_assets
    if: ${{ needs.build_assets.outputs.should_deploy == 'true' }}
    permissions:
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4