// Real Estate Agent Platform - Database Schema
// Milestone 1 & 2: Foundation, Authentication & Agent Features

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

datasource db {
  provider = "postgresql"
}

// ===========================================
// ENUMS
// ===========================================

enum UserRole {
  USER
  AGENT
  ADMIN
  SUPER_ADMIN
}

enum UserStatus {
  ACTIVE
  INACTIVE
  SUSPENDED
  PENDING_VERIFICATION
}

enum AuthProvider {
  LOCAL
  GOOGLE
  FACEBOOK
  TWITTER
  APPLE
}

enum FieldType {
  TEXT           // Single line text input
  TEXTAREA       // Multi-line text area
  CHECKBOX       // Single checkbox (Yes/No)
  CHECKBOX_GROUP // Multiple checkboxes in grid (select multiple)
  RADIO          // Radio buttons (select one)
  SELECT         // Dropdown (select one)
  MULTI_SELECT   // Dropdown with multi-select
  RANGE          // Slider with min/max
  NUMBER         // Number input
  DATE           // Date picker
  TAG_INPUT      // Tag input (add custom tags)
  FILE           // File upload (documents, images)
  REPEATER       // Repeatable group of fields (e.g., certification + years)
}

enum VerificationStatus {
  NONE              // Agent hasn't uploaded documents
  PENDING_REVIEW    // Documents uploaded, awaiting admin review
  APPROVED          // Admin approved verification
  REJECTED          // Admin rejected verification
}

enum ConnectionStatus {
  PENDING
  ACCEPTED
  REJECTED
}

enum MessageType {
  TEXT
  FILE
  IMAGE
  SYSTEM   // For system messages like "connection accepted"
}

enum MessageStatus {
  SENT
  DELIVERED
  READ
}

enum SupportChatStatus {
  OPEN
  CLOSED
}

enum SubscriptionStatus {
  ACTIVE
  PAST_DUE
  CANCELED
  UNPAID
  TRIALING
  INCOMPLETE
}


// ===========================================
// USER - Authentication Only
// ===========================================

model User {
  id                String       @id @default(uuid())
  email             String       @unique
  password          String?      // Null for social login users
  role              UserRole     @default(USER)
  status            UserStatus   @default(ACTIVE)
  emailVerified     Boolean      @default(false)
  emailVerifiedAt   DateTime?
  avatar            String?      // Profile picture URL

  // Social Auth
  authProvider      AuthProvider @default(LOCAL)
  googleId          String?      @unique
  facebookId        String?      @unique
  twitterId         String?      @unique
  appleId           String?      @unique

  // Two-Factor Authentication
  twoFactorEnabled    Boolean   @default(false)
  twoFactorSecret     String?   // Encrypted TOTP secret
  twoFactorBackupCodes String?  // JSON array of hashed backup codes
  twoFactorVerifiedAt DateTime? // When 2FA was enabled

  // User Preferences
  notificationPreferences Json? // { email: {...}, push: {...} }
  privacyPreferences      Json? // { privacySettings: {...}, dataSettings: {...} }

  // Push Notification Tokens
  fcmTokens               Json? // [{ token, device, createdAt }]

  // Timestamps
  createdAt         DateTime     @default(now())
  updatedAt         DateTime     @updatedAt
  lastLoginAt       DateTime?

  // Online Status (for messaging)
  isOnline          Boolean      @default(false)
  lastSeenAt        DateTime?

  // Relations - Profile based on role
  userProfile       UserProfile?
  agentProfile      AgentProfile?

  // Auth Relations
  sessions          Session[]

  // Connection Requests
  connectionRequests ConnectionRequest[]

  // Messaging Relations
  conversations     Conversation[]
  messages          Message[]

  // Notifications
  notifications     Notification[]

  // Support Chat
  supportChats      SupportChat[]

  // Subscriptions & Payments
  subscriptions     AgentSubscription[]
  payments          Payment[]

  // Reports
  reportsSubmitted  UserReport[] @relation("ReportsSubmitted")
  reportsReceived   UserReport[] @relation("ReportsReceived")

  // Verification actions (admin)
  verificationActions VerificationHistory[] @relation("VerificationActions")

  // Audit Log (actor)
  auditLogs         AuditLog[]

  @@index([email])
  @@index([role])
  @@index([status])
  @@index([isOnline])
  @@map("users")
}

// ===========================================
// USER PROFILE - Normal Users
// ===========================================

model UserProfile {
  id                String   @id @default(uuid())
  userId            String   @unique
  firstName         String?
  lastName          String?
  phone             String?
  avatar            String?

  // Location
  city              String?
  state             String?
  country           String?

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

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

  @@index([userId])
  @@map("user_profiles")
}

// ===========================================
// AGENT PROFILE - Agents/Subscribers
// ===========================================

model AgentProfile {
  id                  String   @id @default(uuid())
  userId              String   @unique
  slug                String   @unique
  agentTypeId         String?

  // Basic Info
  firstName           String?
  lastName            String?
  phone               String?
  avatar              String?
  bio                 String?  @db.Text
  headline            String?

  // Location
  city                String?
  state               String?
  country             String?
  address             String?
  zipCode             String?
  latitude            Float?
  longitude           Float?

  // Professional Info
  yearsOfExperience   Int?
  licenseNumber       String?
  companyName         String?
  website             String?

  // Social Links
  facebookUrl         String?
  twitterUrl          String?
  linkedinUrl         String?
  instagramUrl        String?

  // Verification Status
  isVerified           Boolean            @default(false)
  verificationStatus   VerificationStatus @default(NONE)
  verificationNote     String?            // Admin note (rejection reason)
  verifiedAt           DateTime?
  verifiedBy           String?            // Admin user ID who verified

  // Profile Status
  isProfileComplete   Boolean  @default(false)
  profileCompleteness Int      @default(0)
  isPublic            Boolean  @default(true)
  isFeatured          Boolean  @default(false)
  isAvailable         Boolean  @default(true)  // Agent availability status for connect requests

  // Subscription (denormalized for quick access)
  subscriptionStatus  String?  // "ACTIVE", "NONE", etc.

  // Stats (denormalized for performance)
  totalReviews        Int      @default(0)
  averageRating       Float    @default(0)

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

  // Relations
  user                User                    @relation(fields: [userId], references: [id], onDelete: Cascade)
  agentType           AgentType?              @relation(fields: [agentTypeId], references: [id])
  fieldValues         AgentProfileFieldValue[]
  // Testimonial Link
  testimonialToken    String?  @unique

  connectionRequests  ConnectionRequest[]
  conversations       Conversation[]
  testimonials        Testimonial[]

  @@index([userId])
  @@index([agentTypeId])
  @@index([slug])
  @@index([city, state])
  // Verification History
  verificationHistory VerificationHistory[]

  @@index([isVerified])
  @@index([verificationStatus])
  @@index([isPublic])
  @@index([isFeatured])
  @@index([isAvailable])
  @@map("agent_profiles")
}

// ===========================================
// AGENT TYPE - Dynamic agent types (Professional, Lender, etc.)
// ===========================================

model AgentType {
  id          String   @id @default(uuid())
  name        String   @unique
  description String?
  icon        String?
  isActive    Boolean  @default(true)
  sortOrder   Int      @default(0)

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

  // Relations
  agents             AgentProfile[]
  agentTypeSections  AgentTypeSection[]

  @@index([isActive])
  @@map("agent_types")
}

// ===========================================
// DYNAMIC PROFILE FIELD SYSTEM
// ===========================================

// Profile Sections - Groups of related fields
model ProfileSection {
  id          String   @id @default(uuid())
  name        String   // e.g., "Location", "Experience", "Specialization"
  slug        String   @unique // URL-friendly identifier
  description String?
  icon        String?  // Icon name or URL
  sortOrder   Int      @default(0)
  isActive    Boolean  @default(true)
  isGlobal    Boolean  @default(false) // If true, applies to ALL agent types
  isSystem    Boolean  @default(false) // If true, section cannot be deleted (system default)
  isRepeatable Boolean @default(false) // If true, user can add multiple entries (e.g., certifications)

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

  // Relations
  fields              ProfileField[]
  agentTypeSections   AgentTypeSection[]

  @@index([isActive])
  @@index([isSystem])
  @@index([sortOrder])
  @@map("profile_sections")
}

// Many-to-Many: Which sections belong to which agent types
model AgentTypeSection {
  id            String   @id @default(uuid())
  agentTypeId   String
  sectionId     String
  sortOrder     Int      @default(0) // Order specific to this agent type
  isRequired    Boolean  @default(false) // Is this section required for this type

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

  // Relations
  agentType     AgentType      @relation(fields: [agentTypeId], references: [id], onDelete: Cascade)
  section       ProfileSection @relation(fields: [sectionId], references: [id], onDelete: Cascade)

  @@unique([agentTypeId, sectionId])
  @@index([agentTypeId])
  @@index([sectionId])
  @@map("agent_type_sections")
}

// Profile Fields - Individual form fields
model ProfileField {
  id              String    @id @default(uuid())
  sectionId       String
  name            String    // e.g., "State", "Years in Business"
  slug            String    // Unique within section: e.g., "state", "years_in_business"
  fieldType       FieldType
  description     String?   // Help text shown to user
  placeholder     String?   // Placeholder text for input
  defaultValue    String?   // Default value (JSON for complex types)
  sortOrder       Int       @default(0)
  isActive        Boolean   @default(true)
  isRequired      Boolean   @default(false)
  isSearchableOnly Boolean  @default(false) // If true, shown in edit form & search, but hidden on public profile

  // Validation rules (JSON)
  validation      Json?     // { min, max, minLength, maxLength, pattern, etc. }

  // For SELECT, RADIO, MULTI_SELECT, CHECKBOX_GROUP
  options         Json?     // [{ value: "...", label: "...", sortOrder: 0 }]

  // For RANGE/slider
  rangeConfig     Json?     // { min: 0, max: 100, step: 1 }

  // UI Configuration
  uiConfig        Json?     // { columns: 2, showInPreview: true, etc. }

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

  // Relations
  section         ProfileSection       @relation(fields: [sectionId], references: [id], onDelete: Cascade)
  fieldValues     AgentProfileFieldValue[]

  @@unique([sectionId, slug])
  @@index([sectionId])
  @@index([isActive])
  @@map("profile_fields")
}

// Agent Profile Field Values - Stores actual agent data
model AgentProfileFieldValue {
  id              String   @id @default(uuid())
  agentProfileId  String
  fieldId         String

  // Value storage - use appropriate column based on field type
  textValue       String?  @db.Text  // For TEXT, TEXTAREA
  numberValue     Float?             // For NUMBER, RANGE
  booleanValue    Boolean?           // For single CHECKBOX
  jsonValue       Json?              // For MULTI_SELECT, RADIO, complex data
  dateValue       DateTime?          // For DATE

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

  // Relations
  agentProfile    AgentProfile  @relation(fields: [agentProfileId], references: [id], onDelete: Cascade)
  field           ProfileField  @relation(fields: [fieldId], references: [id], onDelete: Cascade)

  @@unique([agentProfileId, fieldId])
  @@index([agentProfileId])
  @@index([fieldId])
  @@map("agent_profile_field_values")
}

// ===========================================
// SESSION - JWT Token Management
// ===========================================

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

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

  @@index([userId])
  @@index([token])
  @@map("sessions")
}

// ===========================================
// CONNECTION REQUEST - User to Agent connections
// ===========================================

model ConnectionRequest {
  id              String           @id @default(uuid())
  userId          String           // User sending the request
  agentProfileId  String           // Agent receiving the request
  status          ConnectionStatus @default(PENDING)
  message         String?          @db.Text // Optional message from user

  // Timestamps
  createdAt       DateTime         @default(now())
  updatedAt       DateTime         @updatedAt
  respondedAt     DateTime?        // When agent responded

  // Relations
  user            User             @relation(fields: [userId], references: [id], onDelete: Cascade)
  agentProfile    AgentProfile     @relation(fields: [agentProfileId], references: [id], onDelete: Cascade)

  @@unique([userId, agentProfileId]) // One request per user-agent pair
  @@index([agentProfileId, status])
  @@index([userId, status])
  @@index([status])
  @@map("connection_requests")
}

// ===========================================
// MESSAGING SYSTEM
// ===========================================

model Conversation {
  id               String    @id @default(uuid())
  userId           String    // Regular user in the conversation
  agentProfileId   String    // Agent in the conversation
  lastMessageAt    DateTime?
  lastMessageText  String?   @db.VarChar(255)
  userUnreadCount  Int       @default(0)  // Unread count for the user
  agentUnreadCount Int       @default(0)  // Unread count for the agent

  // Mute & Favorite (per-user)
  userMuted        Boolean   @default(false)
  agentMuted       Boolean   @default(false)
  userFavorited    Boolean   @default(false)
  agentFavorited   Boolean   @default(false)

  // Clear chat (per-user) — messages before this timestamp are hidden for that user
  userClearedAt    DateTime?
  agentClearedAt   DateTime?

  // Soft delete (per-user) — conversation hidden for that user until a new message arrives
  userDeletedAt    DateTime?
  agentDeletedAt   DateTime?

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

  // Relations
  user             User         @relation(fields: [userId], references: [id], onDelete: Cascade)
  agentProfile     AgentProfile @relation(fields: [agentProfileId], references: [id], onDelete: Cascade)
  messages         Message[]

  @@unique([userId, agentProfileId]) // One conversation per user-agent pair
  @@index([userId, lastMessageAt])
  @@index([agentProfileId, lastMessageAt])
  @@map("conversations")
}

model Message {
  id              String        @id @default(uuid())
  conversationId  String
  senderId        String        // User ID of the sender (can be user or agent's user)
  content         String        @db.Text
  messageType     MessageType   @default(TEXT)

  // File attachment fields
  fileUrl         String?
  fileName        String?
  fileSize        Int?          // File size in bytes
  mimeType        String?

  // Message status
  status          MessageStatus @default(SENT)
  deliveredAt     DateTime?
  readAt          DateTime?

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

  // Relations
  conversation    Conversation  @relation(fields: [conversationId], references: [id], onDelete: Cascade)
  sender          User          @relation(fields: [senderId], references: [id], onDelete: Cascade)

  @@index([conversationId, createdAt])
  @@index([senderId])
  @@index([status])
  @@map("messages")
}

// ===========================================
// IN-APP NOTIFICATIONS
// ===========================================

model Notification {
  id          String   @id @default(uuid())
  userId      String
  type        String   // 'connection', 'message', 'system', 'update', 'request'
  title       String
  description String
  read        Boolean  @default(false)
  actionUrl   String?
  data        Json?    // Extra metadata (conversationId, connectionRequestId, etc.)

  // Timestamps
  createdAt   DateTime @default(now())

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

  @@index([userId, read])
  @@index([userId, createdAt])
  @@map("notifications")
}

// ===========================================
// CMS CONTENT - Dynamic page content management
// ===========================================

model CmsContent {
  id          String   @id @default(uuid())
  pageSlug    String
  sectionKey  String
  content     Json
  isPublished Boolean  @default(true)

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

  @@unique([pageSlug, sectionKey])
  @@index([pageSlug])
  @@map("cms_contents")
}

// ===========================================
// TESTIMONIALS
// ===========================================

model Testimonial {
  id              String   @id @default(uuid())
  agentProfileId  String
  rating          Int      // 1-5
  text            String   @db.Text
  authorName      String
  authorRole      String   // "Home Buyer", "Investor", etc.
  isPublished     Boolean  @default(true)
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt

  agentProfile    AgentProfile @relation(fields: [agentProfileId], references: [id], onDelete: Cascade)

  @@index([agentProfileId])
  @@map("testimonials")
}

// ===========================================
// SUPPORT CHAT SYSTEM
// ===========================================

model SupportChat {
  id               String            @id @default(uuid())
  userId           String
  status           SupportChatStatus @default(OPEN)
  lastMessageAt    DateTime?
  lastMessageText  String?           @db.VarChar(255)
  userUnreadCount  Int               @default(0)
  adminUnreadCount Int               @default(0)
  createdAt        DateTime          @default(now())
  updatedAt        DateTime          @updatedAt

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

  @@index([userId])
  @@index([status])
  @@map("support_chats")
}

model SupportMessage {
  id          String      @id @default(uuid())
  chatId      String
  senderId    String
  senderRole  String      // "USER" or "ADMIN"
  content     String      @db.Text
  createdAt   DateTime    @default(now())

  chat        SupportChat @relation(fields: [chatId], references: [id], onDelete: Cascade)

  @@index([chatId])
  @@map("support_messages")
}

// ===========================================
// SUBSCRIPTION & PAYMENTS
// ===========================================

model SubscriptionPlan {
  id              String   @id @default(uuid())
  name            String                          // "Professional Annual"
  description     String?  @db.Text
  stripePriceId   String   @unique               // Stripe Price ID (price_xxx)
  amount          Int                             // Amount in cents (49900)
  currency        String   @default("usd")
  interval        String   @default("year")       // "month" | "year"
  features        Json?                           // ["Feature 1", "Feature 2"]
  isActive        Boolean  @default(true)
  sortOrder       Int      @default(0)
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt

  subscriptions   AgentSubscription[]

  @@index([isActive])
  @@map("subscription_plans")
}

model AgentSubscription {
  id                    String             @id @default(uuid())
  userId                String
  planId                String
  stripeCustomerId      String             // cus_xxx
  stripeSubscriptionId  String?  @unique   // sub_xxx
  status                SubscriptionStatus @default(INCOMPLETE)
  currentPeriodStart    DateTime?
  currentPeriodEnd      DateTime?
  cancelAtPeriodEnd     Boolean            @default(false)
  canceledAt            DateTime?
  createdAt             DateTime           @default(now())
  updatedAt             DateTime           @updatedAt

  user                  User               @relation(fields: [userId], references: [id], onDelete: Cascade)
  plan                  SubscriptionPlan   @relation(fields: [planId], references: [id])
  payments              Payment[]

  @@index([userId])
  @@index([status])
  @@index([stripeCustomerId])
  @@map("agent_subscriptions")
}

model Payment {
  id                    String   @id @default(uuid())
  subscriptionId        String?
  userId                String
  stripePaymentIntentId String?  @unique   // pi_xxx
  stripeInvoiceId       String?  @unique   // in_xxx
  amount                Int                // cents
  currency              String   @default("usd")
  status                String             // "succeeded", "failed", "pending"
  receiptUrl            String?
  createdAt             DateTime @default(now())

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

  @@index([userId])
  @@index([subscriptionId])
  @@index([status])
  @@map("payments")
}

// ============================================
// USER REPORTS
// ============================================
enum ReportStatus {
  PENDING
  REVIEWED
  RESOLVED
  DISMISSED
}

model UserReport {
  id              String       @id @default(uuid())
  reporterId      String
  reportedUserId  String
  conversationId  String?
  reason          String
  description     String?
  status          ReportStatus @default(PENDING)
  adminNotes      String?
  createdAt       DateTime     @default(now())
  updatedAt       DateTime     @updatedAt

  reporter        User         @relation("ReportsSubmitted", fields: [reporterId], references: [id], onDelete: Cascade)
  reportedUser    User         @relation("ReportsReceived", fields: [reportedUserId], references: [id], onDelete: Cascade)

  @@index([reporterId])
  @@index([reportedUserId])
  @@index([status])
  @@map("user_reports")
}

// ============================================
// CONTACT MESSAGES
// ============================================
model ContactMessage {
  id        String   @id @default(uuid())
  name      String
  email     String
  phone     String?
  message   String
  isRead    Boolean  @default(false)
  createdAt DateTime @default(now())

  @@index([isRead])
  @@index([createdAt])
  @@map("contact_messages")
}

// ============================================
// VERIFICATION HISTORY
// ============================================
model VerificationHistory {
  id              String             @id @default(uuid())
  agentProfileId  String
  status          VerificationStatus
  note            String?
  adminId         String?
  submittedData   Json?              // Snapshot of agent profile + documents at submission time
  createdAt       DateTime           @default(now())

  agentProfile    AgentProfile       @relation(fields: [agentProfileId], references: [id], onDelete: Cascade)
  admin           User?              @relation("VerificationActions", fields: [adminId], references: [id])

  @@index([agentProfileId])
  @@index([createdAt])
  @@map("verification_history")
}

// ============================================
// AUDIT LOG
// ============================================
model AuditLog {
  id           String   @id @default(uuid())
  actorId      String?              // null = system / unauthenticated
  actorRole    String?              // USER, AGENT, ADMIN, SUPER_ADMIN, SYSTEM
  action       String               // see AuditAction enum in audit.constants.ts
  resourceType String?              // User, AgentProfile, Subscription, Payment, etc.
  resourceId   String?
  metadata     Json?                // { before, after, reason, params, ... }
  ipAddress    String?
  userAgent    String?
  createdAt    DateTime @default(now())

  actor User? @relation(fields: [actorId], references: [id], onDelete: SetNull)

  @@index([actorId, createdAt])
  @@index([resourceType, resourceId])
  @@index([action, createdAt])
  @@index([createdAt])
  @@map("audit_logs")
}