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

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

// ─── Enums ───────────────────────────────────────────────────────────────────

enum Role {
  ADMIN
  LEARNER
}

enum CourseCategory {
  GOVERNANCE
  CYBER
  OWLCUB
  OTHER
}

enum CourseLevel {
  BEGINNER
  INTERMEDIATE
  ADVANCED
}

enum LessonType {
  VIDEO
  TEXT
}

// ─── NextAuth Models ──────────────────────────────────────────────────────────

model User {
  id            String    @id @default(cuid())
  email         String    @unique
  name          String?
  image         String?
  emailVerified DateTime?
  locale        String    @default("fr")
  role          Role      @default(LEARNER)
  createdAt     DateTime  @default(now())

  accounts       Account[]
  sessions       Session[]
  enrollments    Enrollment[]
  lessonProgress LessonProgress[]
  quizAttempts   QuizAttempt[]
  certificates   Certificate[]
}

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])
}

// ─── Academy Models ───────────────────────────────────────────────────────────

model Course {
  id           String         @id @default(cuid())
  slug         String         @unique
  category     CourseCategory @default(OTHER)
  level        CourseLevel    @default(BEGINNER)
  thumbnailUrl String?
  published    Boolean        @default(false)
  order        Int            @default(0)
  createdAt    DateTime       @default(now())

  titleFr String
  titleEn String
  titleEs String
  descFr  String @db.Text
  descEn  String @db.Text
  descEs  String @db.Text

  modules      Module[]
  enrollments  Enrollment[]
  certificates Certificate[]
}

model Module {
  id       String @id @default(cuid())
  courseId String
  order    Int    @default(0)

  titleFr String
  titleEn String
  titleEs String

  course  Course   @relation(fields: [courseId], references: [id], onDelete: Cascade)
  lessons Lesson[]
  quiz    Quiz?
}

model Lesson {
  id       String     @id @default(cuid())
  moduleId String
  order    Int        @default(0)
  type     LessonType @default(TEXT)
  videoUrl String?
  duration Int?

  titleFr   String
  titleEn   String
  titleEs   String
  contentFr String? @db.Text
  contentEn String? @db.Text
  contentEs String? @db.Text

  module         Module           @relation(fields: [moduleId], references: [id], onDelete: Cascade)
  lessonProgress LessonProgress[]
}

model Quiz {
  id       String @id @default(cuid())
  moduleId String @unique
  passMark Int    @default(80)

  module    Module        @relation(fields: [moduleId], references: [id], onDelete: Cascade)
  questions Question[]
  attempts  QuizAttempt[]
}

model Question {
  id     String @id @default(cuid())
  quizId String
  order  Int    @default(0)

  textFr String
  textEn String
  textEs String

  optionsFr    String[]
  optionsEn    String[]
  optionsEs    String[]
  correctIndex Int

  quiz Quiz @relation(fields: [quizId], references: [id], onDelete: Cascade)
}

model Enrollment {
  id          String    @id @default(cuid())
  userId      String
  courseId    String
  enrolledAt  DateTime  @default(now())
  completedAt DateTime?

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

  @@unique([userId, courseId])
}

model LessonProgress {
  id          String   @id @default(cuid())
  userId      String
  lessonId    String
  completedAt DateTime @default(now())

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

  @@unique([userId, lessonId])
}

model QuizAttempt {
  id          String   @id @default(cuid())
  userId      String
  quizId      String
  score       Int
  passed      Boolean
  answers     Int[]
  completedAt DateTime @default(now())

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

model Certificate {
  id       String   @id @default(cuid())
  userId   String
  courseId String
  issuedAt DateTime @default(now())
  pdfUrl   String?
  isPaid   Boolean  @default(false)

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

  @@unique([userId, courseId])
}