schema.graphql

type Account @entity {
  id: ID!
  voucher: Voucher @derivedFrom(field: "owner")
  role: Role 
}

type Role @entity {
  id: ID!
  name: String
  accounts: [Account!]! @derivedFrom(field: "role")
}

type Counter @entity {
  id: ID!
  count: BigInt!
}

type VoucherType @entity {
  id: ID!
  description: String!
  duration: BigInt!
  eligibleAssets: [Asset!]!
  vouchers: [Voucher!]! @derivedFrom(field: "voucherType")
}

type Voucher @entity {
  id: ID!
  owner: Account!
  expiration: BigInt!
  voucherType: VoucherType!
  value: BigDecimal! # last funding value
  balance: BigDecimal!
  authorizedAccounts: [Account!]!
  fundings: [VoucherFunding!]! @derivedFrom(field: "voucher")
  deals: [Deal!]! @derivedFrom(field: "sponsor")
}

interface VoucherFunding {
  id: ID!
  timestamp: BigInt!
  value: BigDecimal!
  voucher: Voucher!
}

type VoucherCreation implements VoucherFunding @entity {
  id: ID!
  timestamp: BigInt!
  value: BigDecimal!
  voucher: Voucher!
}

type VoucherTopUp implements VoucherFunding @entity {
  id: ID!
  timestamp: BigInt!
  value: BigDecimal!
  voucher: Voucher!
}

# common interface for all sponsored assets
interface Asset {
  id: ID!
  voucherTypes: [VoucherType!]!
}

type App implements Asset @entity {
  id: ID!
  name: String!
  usages: [Deal!]! @derivedFrom(field: "app")
  voucherTypes: [VoucherType!]! @derivedFrom(field: "eligibleAssets")
}

type Dataset implements Asset @entity {
  id: ID!
  name: String!
  usages: [Deal!]! @derivedFrom(field: "dataset")
  voucherTypes: [VoucherType!]! @derivedFrom(field: "eligibleAssets")
}

type Workerpool implements Asset @entity {
  id: ID!
  description: String!
  usages: [Deal!]! @derivedFrom(field: "workerpool")
  voucherTypes: [VoucherType!]! @derivedFrom(field: "eligibleAssets")
}

# the Deal entity schema is based on the Deal entity of PoCo-subgraph
type Deal @entity {
  id: ID!
  sponsor: Voucher # voucher specific
  sponsoredAmount: BigDecimal # voucher specific
  timestamp: BigInt!
  requester: Account!
  app: App!
  dataset: Dataset
  workerpool: Workerpool!
  botSize: BigInt!
  appPrice: BigDecimal!
  datasetPrice: BigDecimal!
  workerpoolPrice: BigDecimal!
}