// This is your Prisma schema file,
// learn more about it in the docs: https://pris.ly/d/prisma-schema

generator client {
  provider = "prisma-client-js"
}

datasource db {
  provider = "sqlite"
  url      = "file:./test.db"
}

model User {
  id              Int                @id @default(autoincrement())
  email           String             @unique
  name            String?
  passwordHash    String
  solvedExercises ExerciseInstance[]
  apiKeys         ApiKey[]
}

model ApiKey {
  key     String   @id @default(uuid())
  expires DateTime @default(now())
  scopes  String // JSON array of scopes

  owner   User @relation(fields: [ownerId], references: [id])
  ownerId Int
}

model Page {
  id Int @id @default(autoincrement())
}

model Concept {
  name      String               @id
  exercises ExerciseConceptSat[]
}

model Exercise {
  name      String               @id
  concepts  ExerciseConceptSat[]
  instances ExerciseInstance[]

  isGroup    Boolean
  children   Exercise[] @relation("Lineage")
  parent     Exercise?  @relation("Lineage", fields: [parentName], references: [name])
  parentName String?

  // https://github.com/prisma/prisma/issues/3786
  graderConfig String?
}

model ExerciseInstance {
  id Int @id @default(autoincrement())

  exercise     Exercise @relation(fields: [exerciseName], references: [name])
  exerciseName String

  user   User @relation(fields: [userId], references: [id])
  userId Int

  job   Job? @relation(fields: [jobId], references: [id])
  jobId Int?
}

model Job {
  id Int @id @default(autoincrement())

  timeSubmitted  DateTime  @default(now())
  timeClaimed    DateTime
  timeoutSeconds Int
  timeCompleted  DateTime?

  gradingProgress  String // JSON progress information
  gradingStatus    String
  gradingVerdict   String
  gradingFeedback  String // JSON
  ExerciseInstance ExerciseInstance[]
}

model ExerciseConceptSat {
  exercise     Exercise @relation(fields: [exerciseName], references: [name])
  exerciseName String

  concept     Concept @relation(fields: [conceptName], references: [name])
  conceptName String

  satisfiesFactor Float

  @@id([exerciseName, conceptName])
}