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

// Looking for ways to speed up your queries, or scale easily with your serverless or edge functions?
// Try Prisma Accelerate: https://pris.ly/cli/accelerate-init

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

datasource db {
  provider = "postgresql"
}

enum GroupRole {
  ADMIN
  MEMBER
}

enum SetStatus {
  DRAFT
  OPEN
  LOCKED
  REVEALED
}

enum RevealMode {
  MANUAL
  AUTO_WHEN_ALL_GUESSED
}

model User {
  id            String    @id @default(cuid())
  name          String?
  email         String?   @unique
  emailVerified DateTime?
  image         String?

  accounts Account[]
  sessions Session[]

  memberships GroupMember[]
  groupsCreated Group[] @relation("groupsCreated")
  setsCreated   Set[]   @relation("setsCreated")
  photosUploaded Photo[]
  guesses Guess[]

  invitesCreated Invite[] @relation("invitesCreated")
  invitesUsed    Invite[] @relation("invitesUsed")

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

// Auth.js / NextAuth Prisma Adapter models
model Account {
  id                String  @id @default(cuid())
  userId            String
  type              String
  provider          String
  providerAccountId String
  refresh_token     String?
  access_token      String?
  expires_at        Int?
  token_type        String?
  scope             String?
  id_token          String?
  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])
}

// MirrorMatch domain models
model Group {
  id          String   @id @default(cuid())
  name        String
  slug        String   @unique
  createdById String
  createdBy   User     @relation("groupsCreated", fields: [createdById], references: [id], onDelete: Restrict)

  members GroupMember[]
  sets    Set[]
  invites Invite[]

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

model GroupMember {
  id      String    @id @default(cuid())
  groupId String
  userId  String
  role    GroupRole @default(MEMBER)

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

  joinedAt DateTime @default(now())

  @@unique([groupId, userId])
}

model Set {
  id          String     @id @default(cuid())
  groupId     String
  createdById String

  title        String?
  instructions String?

  // Config constraints
  minPhotos  Int @default(2)
  maxPhotos  Int @default(10)
  minOptions Int @default(2)
  maxOptions Int @default(4)

  status     SetStatus  @default(DRAFT)
  revealMode RevealMode @default(MANUAL)

  // If revealMode == AUTO_WHEN_ALL_GUESSED, app may auto-reveal once every active member has guessed every photo.
  allowManualReveal Boolean @default(true)

  group     Group @relation(fields: [groupId], references: [id], onDelete: Cascade)
  createdBy User  @relation("setsCreated", fields: [createdById], references: [id], onDelete: Restrict)

  options Option[]
  photos  Photo[]

  revealedAt   DateTime?
  revealedById String?

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

  @@index([groupId, status])
}

model Option {
  id     String @id @default(cuid())
  setId  String
  label  String
  order  Int

  set Set @relation(fields: [setId], references: [id], onDelete: Cascade)

  photosCorrect Photo[] @relation("correctOption")
  guessesChosen Guess[] @relation("chosenOption")

  @@unique([setId, label])
  @@index([setId, order])
}

model Photo {
  id          String @id @default(cuid())
  setId       String
  uploaderId  String

  // Object storage pointer (MinIO / S3)
  storageKey String
  mimeType   String?

  order  Int
  points Int @default(1) // 1–10 (enforced by app)

  correctOptionId String

  set          Set    @relation(fields: [setId], references: [id], onDelete: Cascade)
  uploader     User   @relation(fields: [uploaderId], references: [id], onDelete: Restrict)
  correctOption Option @relation("correctOption", fields: [correctOptionId], references: [id], onDelete: Restrict)

  guesses Guess[]

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

  @@index([setId, order])
}

model Guess {
  id             String @id @default(cuid())
  photoId        String
  userId         String
  chosenOptionId String

  photo        Photo  @relation(fields: [photoId], references: [id], onDelete: Cascade)
  user         User   @relation(fields: [userId], references: [id], onDelete: Cascade)
  chosenOption Option @relation("chosenOption", fields: [chosenOptionId], references: [id], onDelete: Restrict)

  createdAt DateTime @default(now())

  @@unique([photoId, userId])
  @@index([userId, createdAt])
}

model Invite {
  id          String    @id @default(cuid())
  groupId     String
  email       String
  role        GroupRole @default(MEMBER)

  // Store only a hash of the token in DB.
  tokenHash String @unique

  createdById String
  createdBy   User @relation("invitesCreated", fields: [createdById], references: [id], onDelete: Restrict)

  usedAt   DateTime?
  usedById String?
  usedBy   User? @relation("invitesUsed", fields: [usedById], references: [id], onDelete: SetNull)

  expiresAt DateTime

  group Group @relation(fields: [groupId], references: [id], onDelete: Cascade)

  createdAt DateTime @default(now())

  @@index([groupId, expiresAt])
  @@index([email, expiresAt])
}