require "json"
require "json-schema"

def get_all_form_paths(directories)
  form_paths = []
  directories.each do |directory|
    Dir.glob("#{directory}/*.json").each do |form_path|
      form_paths.push(form_path)
    end
  end
  form_paths
end

namespace :form_definition do
  desc "Validate JSON against Generic Form Schema"
  task validate: :environment do
    puts Rails.root.to_s
    path = "config/forms/schema/generic.json"

    file = File.open(path)
    schema = JSON.parse(file.read)
    metaschema = JSON::Validator.validator_for_name("draft4").metaschema

    puts path

    if JSON::Validator.validate(metaschema, schema)
      puts "schema valid"
    else
      puts "schema not valid"
      return
    end

    directories = ["config/forms", "spec/fixtures/forms"]

    get_all_form_paths(directories).each do |path|
      puts path
      file = File.open(path)
      data = JSON.parse(file.read)

      puts JSON::Validator.fully_validate(schema, data, strict: true)

      begin
        JSON::Validator.validate!(schema, data)
      rescue JSON::Schema::ValidationError => e
        e.message
      end
    end
  end
end