validate.yml

name: Validate Schemas
permissions:
  contents: read

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  validate-schemas:
    runs-on: ubuntu-latest

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

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.11'
          cache: 'pip'

      - name: Install Python dependencies
        run: |
          pip install jsonschema rdflib pyshacl

      - name: Validate JSON Schemas
        run: |
          python -c "
          import json
          import os
          from pathlib import Path

          errors = []
          for schema_file in Path('schemas').rglob('*.json'):
              try:
                  with open(schema_file) as f:
                      json.load(f)
                  print(f'✓ {schema_file}')
              except Exception as e:
                  errors.append(f'{schema_file}: {e}')
                  print(f'✗ {schema_file}: {e}')

          if errors:
              print(f'\n{len(errors)} validation errors found')
              exit(1)
          else:
              print(f'\nAll schemas are valid JSON!')
          "

      - name: Validate RDF Syntax
        run: |
          python -c "
          from rdflib import Graph
          from pathlib import Path
          import json

          errors = []

          # Validate Turtle (.ttl) files
          for rdf_file in Path('rdf').rglob('*.ttl'):
              try:
                  g = Graph()
                  g.parse(rdf_file, format='turtle')
                  print(f'✓ {rdf_file} ({len(g)} triples)')
              except Exception as e:
                  errors.append(f'{rdf_file}: {e}')
                  print(f'✗ {rdf_file}: {e}')

          # Validate JSON-LD files (check JSON syntax only, not RDF parsing)
          # Context files may have structures that rdflib cannot parse standalone
          for jsonld_file in Path('rdf').rglob('*.jsonld'):
              try:
                  with open(jsonld_file) as f:
                      json.load(f)
                  print(f'✓ {jsonld_file} (valid JSON)')
              except Exception as e:
                  errors.append(f'{jsonld_file}: {e}')
                  print(f'✗ {jsonld_file}: {e}')

          if errors:
              print(f'\n{len(errors)} validation errors found')
              exit(1)
          else:
              print(f'\nAll RDF files are valid!')
          "