class Anchor::JSONSchema::SchemaGenerator

def call
  result = {
    "$schema" => "https://json-schema.org/draft-07/schema",
    title: "Schema",
  }
  result.merge!(type_property(root_object))
  result["$defs"] = definitions
  result.to_json
end

def definitions
  resources.map do |resource|
    {
      resource.anchor_schema_name => type_property(resource.express(
        context: @context,
        include_all_fields: @include_all_fields,
        exclude_fields: @exclude_fields.nil? ? [] : @exclude_fields[r.anchor_schema_name.to_sym],
      )),
    }
  end.reduce(&:merge)
end

def initialize(register:, context: {}, include_all_fields: false, exclude_fields: nil) # rubocop:disable Lint/MissingSuper
  @register = register
  @context = context
  @include_all_fields = include_all_fields
  @exclude_fields = exclude_fields
end

def resources
  @resources ||= @register.resources.map { |r| Anchor::JSONSchema::Resource.new(r) }
end

def root_object
  properties = resources.map do |resource|
    Types::Property.new(resource.anchor_schema_name.underscore, Types::Reference.new(resource.anchor_schema_name))
  end
  Types::Object.new(properties)
end