name: Sync README Badges

on:
  workflow_run:
    workflows: ["Build and Push Flutter SDK Image"]
    types:
      - completed
  workflow_dispatch:

jobs:
  sync-badges:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Extract versions
        id: versions
        run: |
          # Android SDK build-tools version (from Dockerfile)
          ANDROID_SDK=$(grep -oP 'ANDROID_BUILD_TOOLS=\K[0-9.]+' Dockerfile.android || echo "")
          echo "android_sdk=${ANDROID_SDK}" >> $GITHUB_OUTPUT
          echo "Android SDK: ${ANDROID_SDK}"

          # Flutter version (from latest release tag)
          FLUTTER=$(curl -fsSL "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases?limit=1" | \
            jq -r '.[0].tag_name // empty' | grep -oP '^[0-9]+\.[0-9]+\.[0-9]+$' || echo "")
          echo "flutter=${FLUTTER}" >> $GITHUB_OUTPUT
          echo "Flutter: ${FLUTTER}"

      - name: Update README badges
        run: |
          ANDROID_SDK="${{ steps.versions.outputs.android_sdk }}"
          FLUTTER="${{ steps.versions.outputs.flutter }}"

          if [ -n "$ANDROID_SDK" ]; then
            # Update Android SDK badge version
            sed -i "s|Android%20SDK-[0-9.]*-green|Android%20SDK-${ANDROID_SDK}-green|g" README.md
            echo "Updated Android SDK badge to ${ANDROID_SDK}"
          fi

          if [ -n "$FLUTTER" ]; then
            # Update Flutter version in variant badges and size badges
            sed -i "s|web--[0-9.]*-blue|web--${FLUTTER}-blue|g" README.md
            sed -i "s|android--[0-9.]*-blue|android--${FLUTTER}-blue|g" README.md
            sed -i "s|linux--[0-9.]*-blue|linux--${FLUTTER}-blue|g" README.md
            sed -i "s|/web-[0-9.]*?|/web-${FLUTTER}?|g" README.md
            sed -i "s|/android-[0-9.]*?|/android-${FLUTTER}?|g" README.md
            sed -i "s|/linux-[0-9.]*?|/linux-${FLUTTER}?|g" README.md
            echo "Updated Flutter version badges to ${FLUTTER}"
          fi

      - name: Check for changes
        id: changes
        run: |
          if git diff --quiet README.md; then
            echo "changed=false" >> $GITHUB_OUTPUT
          else
            echo "changed=true" >> $GITHUB_OUTPUT
          fi

      - name: Commit and push
        if: steps.changes.outputs.changed == 'true'
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add README.md
          git commit -m "Update README badges to match Dockerfile versions"
          git push