name: Update README.md templates

on:
  workflow_dispatch:

permissions:
  contents: write # Grant write permissions to the contents

env:
  FILE_NAME: README.md

jobs:
  update-readme:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version-file: '.nvmrc'
          registry-url: https://registry.npmjs.org/
          cache: 'npm'

      - name: Install
        run: npm ci --ignore-scripts

      - name: Get the current date and time
        id: datetime
        run: echo "BRANCH_NAME=$(date +'actions_templates_%Y_%m_%d_%H%M%S')" >> $GITHUB_ENV

      - name: Create update-template.sh script
        run: |
          cat << 'EOF' > update-template.sh
          #!/bin/bash

          TEMPLATE_VALUE=$(curl -s $TEMPLATE_URL)

          perl -0777 -i -pe "
          my \$tag = quotemeta('<!-- template_${TEMPLATE_TAG} -->');
          my \$end_tag = quotemeta('<!-- template_${TEMPLATE_TAG}_end -->');
          my \$replacement = '${TEMPLATE_VALUE}';

          # Match the tag, then any amount of whitespace (including newlines), then the replacement, then any amount of whitespace, then the end tag.
          s/(\$tag)(\s*)(.*?)(\s*)(\$end_tag)/\$1\n\$replacement\n\$5/s;
          " "$FILE_NAME"

          EOF
          chmod +x update-template.sh
          cat update-template.sh

      - name: Fetch and update RELATED PROJECTS template
        run: ./update-template.sh
        env:
          TEMPLATE_URL: https://raw.githubusercontent.com/wiki/tiagosiebler/awesome-crypto-examples/Related-projects.md
          TEMPLATE_TAG: related_projects

      - name: Fetch and update CONTRIBUTIONS template
        run: ./update-template.sh
        env:
          TEMPLATE_URL: https://raw.githubusercontent.com/wiki/tiagosiebler/awesome-crypto-examples/Contributions-%26-Thanks.md
          TEMPLATE_TAG: contributions

      - name: Fetch and update STAR HISTORY template
        run: ./update-template.sh
        env:
          TEMPLATE_URL: https://raw.githubusercontent.com/wiki/tiagosiebler/awesome-crypto-examples/Star-History.md
          TEMPLATE_TAG: star_history

      - name: Check for changes before running linter
        run: git diff

      - name: Check for changes | PR URL HERE
        id: commitIfChanged
        run: |
          npx prettier -w README.md
          if git diff --quiet; then
            echo "No changes to commit"
            exit 0
          fi
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
          git checkout -b ${{ env.BRANCH_NAME }}
          git add $FILE_NAME
          git commit -m 'chore(): ${{ env.FILE_NAME }} template sections'
          git push origin ${{ env.BRANCH_NAME }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}