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

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

// --- NextAuth required models ---

model Account {
  id                String  @id @default(cuid())
  userId            String
  type              String
  provider          String
  providerAccountId String
  refresh_token     String? @db.Text
  access_token      String? @db.Text
  expires_at        Int?
  token_type        String?
  scope             String?
  id_token          String? @db.Text
  session_state     String?

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

  @@unique([provider, providerAccountId])
}

model Session {
  id           String   @id @default(cuid())
  sessionToken String   @unique
  userId       String
  expires      DateTime
  user         User     @relation(fields: [userId], references: [id], onDelete: Cascade)
}

model VerificationToken {
  identifier String
  token      String   @unique
  expires    DateTime

  @@unique([identifier, token])
}

// --- App models ---

model User {
  id            String       @id @default(cuid())
  name          String?
  email         String?      @unique
  emailVerified DateTime?
  image         String?
  accounts      Account[]
  sessions      Session[]
  sleepEntries  SleepEntry[]
  createdAt     DateTime     @default(now())
}

model SleepEntry {
  id           String    @id @default(cuid())
  userId       String
  user         User      @relation(fields: [userId], references: [id], onDelete: Cascade)

  // The date of the night (e.g. 2024-01-15 = night of 14→15 jan)
  date         DateTime  @db.Date

  // Optional: exact times
  bedtime      DateTime?
  wakeTime     DateTime?

  // Required: total sleep
  totalMinutes Int

  // Optional: phase breakdown (in minutes)
  deepMinutes  Int?
  lightMinutes Int?
  remMinutes   Int?
  awakeMinutes Int?
  awakeCount   Int?

  notes        String?

  createdAt    DateTime  @default(now())
  updatedAt    DateTime  @updatedAt

  @@unique([userId, date])
}