type Query {
  info: String!
  feed(
    filter: String
    skip: Int
    take: Int
    orderBy: AppointmentOrderByInput
  ): Feed!
  allAppointments: [Appointment]
  oneAppointment(_id: ID!): Appointment
}

type Feed {
  id: ID!
  appointments: [Appointment!]!
  count: Int!
}

type Mutation {
  createAppointment(
    title: String!
    description: String
    type: String!
    start: DateTime!
    end: DateTime!
    deleted: Boolean
  ): Appointment!
  updateAppointment(
    _id: ID!
    title: String!
    description: String
    type: String!
    start: DateTime!
    end: DateTime!
    deleted: Boolean
  ): Appointment
  deleteAppointment(_id: ID!): Appointment
}

type Subscription {
  newAppointment: Appointment
}

# Appointment schemas
type Appointment {
  _id: ID!
  title: String!
  description: String
  type: String!
  start: DateTime!
  end: DateTime!
  deleted: Boolean
}
input AppointmentInput {
  title: String!
  description: String
  type: String!
  start: DateTime!
  end: DateTime!
  deleted: Boolean
}
input AppointmentOrderByInput {
  title: Sort
  desc: Sort
}

# General-purpose schemas
enum Sort {
  asc
  desc
}
scalar DateTime
scalar Time