class GraphQLSchema

# File lib/graphql_schema.rb, line 5
def initialize(instrospection_result)
  @hash = instrospection_result.fetch('data').fetch('__schema')
end

# File lib/graphql_schema.rb, line 23
def directives
  @directives ||= @hash.fetch('directives').map do |directive|
    Directive.new(directive)
  end.sort_by(&:name)
end

# File lib/graphql_schema.rb, line 17
def mutation_root_name
  if mutation_type = @hash.fetch('mutationType')
    mutation_type.fetch('name')
  end
end

# File lib/graphql_schema.rb, line 13
def query_root_name
  @query_root_name ||= @hash.fetch('queryType').fetch('name')
end

# File lib/graphql_schema.rb, line 9
def root_name?(type_name)
  type_name == query_root_name || type_name == mutation_root_name
end

# File lib/graphql_schema.rb, line 29
def types
  @types ||= @hash.fetch('types').map{ |type_hash| TypeDefinition.new(type_hash) }.sort_by(&:name)
end

# File lib/graphql_schema.rb, line 33
def types_by_name
  @types_by_name ||= types.map { |type| [type.name, type] }.to_h
end