// Gruperly - Prisma Schema (PostgreSQL)

generator client {
  provider = "prisma-client"
  output   = "./generated/prisma"
}

datasource db {
  provider = "postgresql"
}

// Auth (Better Auth) - required tables
model User {
  id             String    @id @default(cuid())
  name           String
  email          String    @unique
  emailVerified  Boolean   @default(false)
  image          String?
  createdAt      DateTime  @default(now())
  updatedAt      DateTime  @updatedAt

  accounts Account[]
  sessions Session[]
  groupsMember   Member[]
  groupsOwner    Group[]      @relation("OwnerGroups")
  waitlist       WaitlistEntry[]

  @@map("users")
}

model Account {
  id                String  @id @default(cuid())
  userId            String
  providerId        String
  providerAccountId String
  refreshToken      String?
  accessToken       String?
  accessTokenExpiresAt DateTime?
  refreshTokenExpiresAt DateTime?
  scope             String?
  idToken           String?
  password          String?
  createdAt         DateTime @default(now())
  updatedAt         DateTime @updatedAt

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

  @@unique([providerId, providerAccountId])
  @@map("accounts")
}

model Session {
  id        String   @id @default(cuid())
  userId    String
  token     String   @unique
  expiresAt DateTime
  ipAddress String?
  userAgent String?
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

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

  @@map("sessions")
}

model Verification {
  id         String   @id @default(cuid())
  identifier String
  value      String
  expiresAt  DateTime
  createdAt  DateTime @default(now())
  updatedAt  DateTime @updatedAt

  @@unique([identifier, value])
  @@map("verifications")
}

// Domain models
model Group {
  id          String   @id @default(cuid())
  name        String
  description String?
  createdById String
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  owner    User     @relation("OwnerGroups", fields: [createdById], references: [id], onDelete: Cascade)
  members  Member[]
  students Student[]
  payments Payment[]

  @@map("groups")
}

model Member {
  id      String @id @default(cuid())
  groupId String
  userId  String
  role    Role   @default(MEMBER) // OWNER, ADMIN, MEMBER
  joinedAt DateTime @default(now())

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

  @@unique([groupId, userId])
  @@map("members")
}

enum Role {
  OWNER
  ADMIN
  MEMBER
}

model Student {
  id        String   @id @default(cuid())
  groupId   String
  fullName  String
  email     String?
  phone     String?
  guardianName String?
  guardianPhone String?
  notes     String?
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

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

  @@index([groupId])
  @@map("students")
}

model Payment {
  id        String        @id @default(cuid())
  groupId   String
  studentId String
  amount    Decimal       @db.Decimal(10, 2)
  currency  String        @default("MXN")
  status    PaymentStatus @default(PENDING) // PENDING, PAID, OVERDUE, CANCELLED
  dueDate   DateTime
  paidAt    DateTime?
  createdAt DateTime      @default(now())
  updatedAt DateTime      @updatedAt

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

  @@index([groupId])
  @@index([studentId])
  @@map("payments")
}

enum PaymentStatus {
  PENDING
  PAID
  OVERDUE
  CANCELLED
}

model WaitlistEntry {
  id        String   @id @default(cuid())
  email     String
  name      String?
  status    WaitlistStatus @default(PENDING) // PENDING, INVITED, JOINED, DECLINED
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  userId String? @unique

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

  @@unique([email])
  @@map("waitlist_entries")
}

enum WaitlistStatus {
  PENDING
  INVITED
  JOINED
  DECLINED
}