name: Sync Schema

on:
  workflow_dispatch: # Manual trigger
  # TODO: Add daily schedule later
  # schedule:
  #   - cron: '0 2 * * *'  # Run daily at 2 AM UTC

permissions:
  contents: write

jobs:
  sync-schema:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Checkout static repo
        uses: actions/checkout@v7
        with:
          repository: modelcontextprotocol/static
          path: static-repo

      - name: Sync schemas from static repo
        run: |
          echo "🔍 Syncing schemas from modelcontextprotocol/static..."
          mkdir -p internal/validators/schemas
          
          # Copy all versioned schema files
          for dir in static-repo/schemas/*/; do
            if [ -f "$dir/server.schema.json" ]; then
              version=$(basename "$dir")
              # Skip draft directory if it exists
              if [ "$version" != "draft" ]; then
                output_file="internal/validators/schemas/${version}.json"
                if [ ! -f "$output_file" ] || ! cmp -s "$dir/server.schema.json" "$output_file"; then
                  echo "⬇ Adding/updating ${version}/server.schema.json -> ${version}.json"
                  cp "$dir/server.schema.json" "$output_file"
                else
                  echo "✓ ${version} is already up to date"
                fi
              fi
            fi
          done
          
          echo "✅ Schema sync complete"

      - name: Check for changes
        id: changes
        run: |
          # Check for both modified and untracked files
          if [ -n "$(git status --porcelain internal/validators/schemas/)" ]; then
            echo "changed=true" >> $GITHUB_OUTPUT
            git status --porcelain internal/validators/schemas/
          else
            echo "changed=false" >> $GITHUB_OUTPUT
            echo "No changes to schemas"
          fi

      - name: Commit and push changes
        if: steps.changes.outputs.changed == 'true'
        run: |
          git config --local user.email "action@github.com"
          git config --local user.name "GitHub Action"
          git add internal/validators/schemas/
          git commit -m "Sync schemas from modelcontextprotocol/static [skip ci]"
          git push