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

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

model Timetable {
  id         Int       @id @unique @default(autoincrement())
  createdAt  DateTime  @default(now())
  updatedAt  DateTime  @updatedAt
  class      String
  validFrom  DateTime  @default(now())
  validUntil DateTime?
  data       Json
}

model Substitution {
  id             Int      @id @unique @default(autoincrement())
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
  class          String[]
  date           DateTime
  type           String
  lesson         Int
  changedTeacher String?
  changedRoom    String?
  changedSubject String?
  notes          String?
  removed        Boolean  @default(false)

  SubstitutionChange SubstitutionChange[]
}

model SubstitutionChange {
  id             Int          @id @unique @default(autoincrement())
  createdAt      DateTime     @default(now())
  substitution   Substitution @relation(fields: [substitutionId], references: [id])
  substitutionId Int
  type           String
  changes        Json?
  parseEvent     ParseEvent   @relation(fields: [parseEventId], references: [id])
  parseEventId   Int
}

model ParseEvent {
  id           Int      @id @unique @default(autoincrement())
  createdAt    DateTime @default(now())
  logFile      String
  originalData String
  duration     Int
  succeeded    Boolean

  SubstitutionChange SubstitutionChange[]
}

model Class {
  name  String @id @unique
  regex String
}