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

datasource db {
  provider = "sqlite"
  url      = "file:./dev.db"
}

// Multi-tenant University Configuration
model University {
  id        String   @id @default(uuid())
  slug      String   @unique
  name      String
  shortName String?
  domain    String?
  subdomain String?
  
  // Configuration as JSON
  branding  Json     // Branding configuration
  contact   Json     // Contact information
  features  Json     // Feature flags
  ai        Json     // AI configuration
  
  // Branch/Campus Management
  isMultiBranch Boolean @default(false)  // Whether this university has multiple branches
  parentUniversityId String?  // For branches, reference to parent university
  branchType BranchType?  // Type of branch (MAIN, CAMPUS, CENTER, etc.)
  
  status    UniversityStatus @default(SETUP)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  // Relationships
  users     User[]
  programs  AcademicProgram[]
  content   UniversityContent[]
  knowledgeBase AIKnowledgeBase[]
  courses   Course[]
  faqs      FAQ[]
  assets    Asset[]
  domains   DomainConfig[]
  deployments DeploymentConfig[]
  cdnConfig CDNConfig?
  cdnAssets CDNAsset[]
  
  // Branch relationships
  parentUniversity University? @relation("UniversityBranches", fields: [parentUniversityId], references: [id])
  branches         University[] @relation("UniversityBranches")

  @@map("universities")
}

// Academic Programs (Majors) - University-specific
model AcademicProgram {
  id          String   @id @default(uuid())
  universityId String
  title       String
  titleAr     String?
  description String?
  descriptionAr String?
  level       ProgramLevel
  duration    String?
  fees        String?
  entryRequirements String?
  campusLocations Json?
  totalCredits Int     @default(120)
  isActive    Boolean  @default(true)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  // Relationships
  university University @relation(fields: [universityId], references: [id], onDelete: Cascade)
  courses    Course[]

  @@map("academic_programs")
}

// University Content (Dynamic content)
model UniversityContent {
  id            String   @id @default(uuid())
  universityId  String
  contentType   ContentType
  title         String
  titleAr       String?
  content       String?
  contentAr     String?
  metadata      Json?
  isPublished   Boolean  @default(false)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt

  // Relationships
  university University @relation(fields: [universityId], references: [id], onDelete: Cascade)

  @@map("university_content")
}

// AI Knowledge Base (University-specific)
model AIKnowledgeBase {
  id            String   @id @default(uuid())
  universityId  String
  category      String?
  question      String
  questionAr    String?
  answer        String
  answerAr      String?
  priority      Int      @default(1)
  isActive      Boolean  @default(true)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt

  // Relationships
  university University @relation(fields: [universityId], references: [id], onDelete: Cascade)

  @@map("ai_knowledge_base")
}

// Updated User model with university relationship and authentication
model User {
  id           String   @id @default(uuid())
  universityId String?
  email        String   @unique
  name         String
  password     String   // Hashed password
  role         Role     @default(STUDENT)
  year         Int?
  faculty      String?
  balance      Float?
  isActive     Boolean  @default(true)
  lastLogin    DateTime?
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt

  // Relationships
  university   University? @relation(fields: [universityId], references: [id])
  enrollments  Enrollment[]
  surveys      Survey[]
  chatSessions ChatSession[]
  advisorId    String?
  advisor      User?   @relation("AdvisorStudent", fields: [advisorId], references: [id])
  students     User[]  @relation("AdvisorStudent")
  sessions     UserSession[]

  @@map("users")
}

// User Session for authentication
model UserSession {
  id        String   @id @default(uuid())
  userId    String
  token     String   @unique
  expiresAt DateTime
  createdAt DateTime @default(now())

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

  @@map("user_sessions")
}

// Updated Course model with university and program relationship
model Course {
  id           String   @id @default(uuid())
  universityId String?
  programId    String?
  code         String   @unique
  name         String
  description  String?
  credits      Int
  semester     String
  schedule     String?
  prerequisites String?
  isRequired   Boolean  @default(true)
  isActive     Boolean  @default(true)
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt

  // Relationships
  university   University? @relation(fields: [universityId], references: [id])
  program      AcademicProgram? @relation(fields: [programId], references: [id])
  enrollments  Enrollment[]

  @@map("courses")
}

// Updated FAQ model with university relationship
model FAQ {
  id           String   @id @default(uuid())
  universityId String?
  question     String
  answer       String
  category     String
  language     String   @default("en")
  priority     Int      @default(1)
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt

  // Relationships
  university   University? @relation(fields: [universityId], references: [id])

  @@map("faqs")
}

model Enrollment {
  id       String @id @default(uuid())
  userId   String
  courseId String
  grade    String?
  status   EnrollmentStatus @default(ENROLLED)

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

  @@unique([userId, courseId])
  @@map("enrollments")
}

model ChatSession {
  id        String   @id @default(uuid())
  userId    String?
  type      ChatType @default(GENERAL)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  // Relationships
  user User? @relation(fields: [userId], references: [id])
  messages ChatMessage[]

  @@map("chat_sessions")
}

// Chat Message for conversation memory
model ChatMessage {
  id             String   @id @default(uuid())
  conversationId String
  role           String   // 'user' | 'assistant' | 'system'
  content        String
  universitySlug String?
  userContext    String?  // JSON string of user context
  createdAt      DateTime @default(now())

  // Relationships
  session ChatSession @relation(fields: [conversationId], references: [id], onDelete: Cascade)

  @@map("chat_messages")
}

model Survey {
  id        String   @id @default(uuid())
  userId    String?
  type      String
  rating    Int
  feedback  String?
  sessionId String?
  createdAt DateTime @default(now())

  // Relationships
  user User? @relation(fields: [userId], references: [id])

  @@map("surveys")
}

model AccessibilityAudit {
  id          String   @id @default(uuid())
  url         String
  imagePath   String?
  altText     String?
  wcagScore   Float?
  issues      Json?
  suggestions Json?
  createdAt   DateTime @default(now())

  @@map("accessibility_audits")
}

// Enums
enum UniversityStatus {
  SETUP
  ACTIVE
  INACTIVE
  SUSPENDED
}

enum ProgramLevel {
  UNDERGRADUATE
  POSTGRADUATE
  PHD
}

enum ContentType {
  ABOUT
  RANKINGS
  RESEARCH
  CAMPUS
  NEWS
  EVENTS
}

enum Role {
  STUDENT
  STAFF
  ADMIN
  SUPER_ADMIN
}

enum EnrollmentStatus {
  ENROLLED
  COMPLETED
  DROPPED
  PENDING
}

enum ChatType {
  GENERAL
  MENTAL_HEALTH
  ACADEMIC
  TECHNICAL
}

// Asset model for university-specific assets
model Asset {
  id            String   @id @default(uuid())
  universityId  String
  type          AssetType
  filename      String
  originalName  String
  mimeType      String
  size          Int
  path          String
  url           String
  altText       String?
  altTextAr     String?
  metadata      Json?
  isPublic      Boolean  @default(true)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt

  // Relationships
  university University @relation(fields: [universityId], references: [id], onDelete: Cascade)

  @@map("assets")
}

// Domain Configuration for multi-tenant domain management
model DomainConfig {
  id            String   @id @default(uuid())
  universityId  String
  type          DomainType
  domain        String
  subdomain     String?
  sslStatus     SSLStatus @default(PENDING)
  sslExpiryDate DateTime?
  dnsStatus     DNSStatus @default(PENDING)
  isActive      Boolean  @default(false)
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt

  // Relationships
  university University @relation(fields: [universityId], references: [id], onDelete: Cascade)
  sslConfig   SSLConfig?
  dnsConfig   DNSConfig?
  analytics   DomainAnalytics[]

  @@map("domain_configs")
}

// SSL Configuration for domain certificates
model SSLConfig {
  id                String   @id @default(uuid())
  domainId          String   @unique
  provider          SSLProvider
  certificatePath   String?
  privateKeyPath    String?
  autoRenewal       Boolean  @default(true)
  renewalThreshold  Int      @default(30)
  lastRenewalDate   DateTime?
  nextRenewalDate   DateTime?
  createdAt         DateTime @default(now())
  updatedAt         DateTime @updatedAt

  // Relationships
  domainConfig DomainConfig @relation(fields: [domainId], references: [id], onDelete: Cascade)

  @@map("ssl_configs")
}

// DNS Configuration for domain records
model DNSConfig {
  id          String   @id @default(uuid())
  domainId    String   @unique
  provider    DNSProvider
  apiKey      String?
  zoneId      String?
  recordType  DNSRecordType
  recordValue String
  ttl         Int      @default(300)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  // Relationships
  domainConfig DomainConfig @relation(fields: [domainId], references: [id], onDelete: Cascade)

  @@map("dns_configs")
}

// Domain Analytics for monitoring
model DomainAnalytics {
  id          String   @id @default(uuid())
  domainId    String
  uptime      Float
  responseTime Int
  sslStatus   SSLStatus
  dnsStatus   DNSStatus
  checkedAt   DateTime @default(now())

  // Relationships
  domainConfig DomainConfig @relation(fields: [domainId], references: [id], onDelete: Cascade)

  @@map("domain_analytics")
}

enum AssetType {
  LOGO
  FAVICON
  HERO_IMAGE
  NEWS_IMAGE
  PROGRAM_IMAGE
  GALLERY_IMAGE
  DOCUMENT
  VIDEO
  AUDIO
}

enum DomainType {
  SUBDOMAIN
  CUSTOM_DOMAIN
}

enum SSLStatus {
  PENDING
  ACTIVE
  EXPIRED
  ERROR
}

enum DNSStatus {
  PENDING
  VERIFIED
  ERROR
}

enum SSLProvider {
  LETSENCRYPT
  CLOUDFLARE
  AWS
  CUSTOM
}

enum DNSProvider {
  CLOUDFLARE
  AWS_ROUTE53
  GOOGLE_CLOUD
  CUSTOM
}

enum DNSRecordType {
  A
  CNAME
  ALIAS
}

// Deployment Configuration for automation
model DeploymentConfig {
  id            String   @id @default(uuid())
  universityId  String
  environment   DeploymentEnvironment
  version       String
  status        DeploymentStatus @default(PENDING)
  deploymentType DeploymentType @default(FULL)
  startTime     DateTime @default(now())
  endTime       DateTime?
  logs          Json     // Array of log messages
  metadata      Json     // Additional deployment metadata
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt

  // Relationships
  university University @relation(fields: [universityId], references: [id], onDelete: Cascade)

  @@map("deployment_configs")
}

// Environment Configuration for different deployment stages
model EnvironmentConfig {
  id          String   @id @default(uuid())
  name        String
  type        DeploymentEnvironment
  domain      String
  databaseUrl String
  apiKeys     Json     // API keys for different services
  features    Json     // Feature flags for the environment
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  @@map("environment_configs")
}

enum DeploymentEnvironment {
  DEVELOPMENT
  STAGING
  PRODUCTION
}

enum DeploymentStatus {
  PENDING
  IN_PROGRESS
  COMPLETED
  FAILED
  ROLLED_BACK
}

enum DeploymentType {
  FULL
  INCREMENTAL
  ROLLBACK
}

// CDN Configuration for cloud storage
model CDNConfig {
  id          String   @id @default(uuid())
  universityId String  @unique
  provider    CDNProvider
  bucketName  String?
  region      String?
  accessKey   String?
  secretKey   String?
  domain      String
  isActive    Boolean  @default(false)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  // Relationships
  university University @relation(fields: [universityId], references: [id], onDelete: Cascade)
  assets     CDNAsset[]

  @@map("cdn_configs")
}

// CDN Assets for optimized delivery
model CDNAsset {
  id            String   @id @default(uuid())
  universityId  String
  originalPath  String
  cdnUrl        String
  optimizedUrls Json     // Record of optimized URLs
  metadata      Json     // Asset metadata
  uploadedAt    DateTime @default(now())

  // Relationships
  university University @relation(fields: [universityId], references: [id], onDelete: Cascade)
  cdnConfig  CDNConfig? @relation(fields: [universityId], references: [universityId])

  @@map("cdn_assets")
}

enum CDNProvider {
  AWS_S3
  CLOUDFLARE
  CLOUDINARY
  CUSTOM
}

enum BranchType {
  MAIN
  CAMPUS
  CENTER
  BRANCH
  EXTENSION
  PARTNER
}