trigger:
  - master

pr:
  - master

pool:
  vmImage: 'ubuntu-latest'

steps:
- task: UsePythonVersion@0
  inputs:
    versionSpec: '3.x'
    addToPath: true
    architecture: 'x64'

- task: PythonScript@0
  displayName: 'Test fhir-ig-list.json is valid json.'
  inputs:
    scriptSource: 'inline'
    script: |
      import json
      
      f = open("fhir-ig-list.json","r")
      file_contents = f.read()
      print(file_contents)
      json_object = json.loads(file_contents)

- task: PythonScript@0
  displayName: 'Test all fhir-version fields are lists.'
  inputs:
    scriptSource: 'inline'
    script: |
      import json

      def item_generator(json_input, lookup_key):
          if isinstance(json_input, dict):
              for k, v in json_input.items():
                  if k == lookup_key:
                      yield v
                  else:
                      yield from item_generator(v, lookup_key)
          elif isinstance(json_input, list):
              for item in json_input:
                  yield from item_generator(item, lookup_key)

      json_file = open("fhir-ig-list.json", "r")
      file_contents = json_file.read()
      jdata = json.loads(file_contents)

      for _ in item_generator(jdata, "fhir-version"):
          if type(_) != list:
              raise Exception("one of the fhir-version fields has a non-list value, please fix this")