// 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 = "postgresql"
  url      = env("DATABASE_URL")
}

/// An event is the representation of a gathering of people in a certain place at a certain time.
model Event {
  id           Int              @id @default(autoincrement())
  //
  slug         String
  createdAt    DateTime         @default(now())
  updatedAt    DateTime         @updatedAt
  viewPassword String?
  joinPassword String?
  //
  name         String
  description  String
  postcard     String?
  startTime    DateTime?
  endTime      DateTime?
  location     String?
  //
  partecipants Partecipant[]
  neededItems  CollectiveItem[]
}

/// A partecipant is a person who may or may not partecipate to the event.
model Partecipant {
  id          Int                 @id @default(autoincrement())
  eventId     Int
  event       Event               @relation(fields: [eventId], references: [id])
  //
  name        String
  email       String
  //
  means       PartecipationMeans
  createdAt   DateTime            @default(now())
  joinedAt    DateTime?
  //
  answer      PartecipationAnswer
  shouldBring CollectiveItem[]
}

enum PartecipationMeans {
  CREATOR
  INVITED
  ACCEPTED
  JOINED
}

enum PartecipationAnswer {
  HOST
  YES
  MAYBE
  NO
  PENDING
}

/// An item which should be bought and brought by somebody to the event.
model CollectiveItem {
  id         Int          @id @default(autoincrement())
  eventId    Int
  event      Event        @relation(fields: [eventId], references: [id])
  //
  quantity   Int
  name       String
  purchased  Boolean      @default(false)
  //
  assignedId Int?
  assigned   Partecipant? @relation(fields: [assignedId], references: [id])
}