/// A copy of `ExamEnvironmentExam` used as a staging collection for updates to the curriculum.
///
/// This collection schema must be kept in sync with `ExamEnvironmentExam`.
model ExamCreatorExam {
  /// Globally unique exam id
  id            String                       @id @default(auto()) @map("_id") @db.ObjectId
  /// All questions for a given exam
  questionSets  ExamEnvironmentQuestionSet[]
  /// Configuration for exam metadata
  config        ExamEnvironmentConfig
  /// ObjectIds for required challenges/blocks to take the exam
  prerequisites String[]                     @db.ObjectId
  /// If `deprecated`, the exam should no longer be considered for users
  deprecated    Boolean
  /// Version of the record
  /// The default must be incremented by 1, if anything in the schema changes
  version       Int                          @default(3)
}

/// Exam Creator application collection to store authZ users.
///
/// Currently, this is manually created in order to grant access to the application.
model ExamCreatorUser {
  id        String                  @id @default(auto()) @map("_id") @db.ObjectId
  email     String
  /// Unique id from GitHub for an account.
  ///
  /// Currently, this is unused. Consider removing.
  github_id Int?
  name      String
  picture   String?
  settings  ExamCreatorUserSettings
  version   Int                     @default(2)

  ExamCreatorSession ExamCreatorSession[]
}

type ExamCreatorUserSettings {
  databaseEnvironment ExamCreatorDatabaseEnvironment
}

enum ExamCreatorDatabaseEnvironment {
  Production
  Staging
}

/// Exam Creator application collection to store auth sessions.
model ExamCreatorSession {
  id         String   @id @default(auto()) @map("_id") @db.ObjectId
  user_id    String   @db.ObjectId
  session_id String
  /// Expiration date for record.
  expires_at DateTime

  version Int @default(1)

  ExamCreatorUser ExamCreatorUser @relation(fields: [user_id], references: [id])
}