# Example schema for simple movie review app

# User table is keyed by Firebase Auth UID.
type User @table {
  # `@default(expr: "auth.uid")` sets it to Firebase Auth UID during insert and upsert.
  id: String! @default(expr: "auth.uid")
  username: String! @col(dataType: "varchar(50)")
  # The `user: User!` field in the Review table generates the following one-to-many query field.
  #  reviews_on_user: [Review!]!
  # The `Review` join table the following many-to-many query field.
  #  movies_via_Review: [Movie!]!
}

# Movie is keyed by a randomly generated UUID.
type Movie @table {
  # If you do not pass a 'key' to `@table`, Data Connect automatically adds the following 'id' column.
  # Feel free to uncomment and customize it.
  #  id: UUID! @default(expr: "uuidV4()")
  title: String!
  imageUrl: String!
  genre: String
}

# MovieMetadata is a metadata attached to a Movie.
# Movie <-> MovieMetadata is a one-to-one relationship
type MovieMetadata @table {
  # @unique ensures each Movie can only one MovieMetadata.
  movie: Movie! @unique
  # The movie field adds the following foreign key field. Feel free to uncomment and customize it.
  #  movieId: UUID!
  rating: Float
  releaseYear: Int
  description: String
}

# Reviews is a join table between User and Movie.
# It has a composite primary keys `userUid` and `movieId`.
# A user can leave reviews for many movies. A movie can have reviews from many users.
# User  <-> Review is a one-to-many relationship
# Movie <-> Review is a one-to-many relationship
# Movie <-> User is a many-to-many relationship
type Review @table(name: "Reviews", key: ["movie", "user"]) {
  user: User!
  # The user field adds the following foreign key field. Feel free to uncomment and customize it.
  #  userUid: String!
  movie: Movie!
  # The movie field adds the following foreign key field. Feel free to uncomment and customize it.
  #  movieId: UUID!
  rating: Int
  reviewText: String
  reviewDate: Date! @default(expr: "request.time")
}