// Schema do domínio de aplicação do B2BCall. Vive no schema "public" do
// Postgres — nunca misturado com as tabelas do Asterisk Realtime (schema
// "asterisk", ver infrastructure/postgres/init/002-asterisk-realtime.sql).
//
// Modelado incrementalmente por fase (ver TODO.md): esta primeira migration
// cobre apenas autenticação, RBAC e auditoria (Fase 3). Demais entidades
// (agentes, troncos, filas, campanhas, leads, ...) chegam em migrations
// subsequentes, nunca alteração manual de schema.

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

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

model User {
  id                 String    @id @default(uuid())
  name               String
  email              String    @unique
  passwordHash       String    @map("password_hash")
  isActive           Boolean   @default(true) @map("is_active")
  mustChangePassword Boolean   @default(false) @map("must_change_password")
  lastLoginAt        DateTime? @map("last_login_at")
  createdAt          DateTime  @default(now()) @map("created_at")
  updatedAt          DateTime  @updatedAt @map("updated_at")

  roles                UserRole[]
  sessions             Session[]
  passwordResetTokens  PasswordResetToken[]
  auditLogs            AuditLog[]

  @@map("users")
}

model Session {
  id                String    @id @default(uuid())
  userId            String    @map("user_id")
  refreshTokenHash  String    @map("refresh_token_hash")
  userAgent         String?   @map("user_agent")
  ipAddress         String?   @map("ip_address")
  expiresAt         DateTime  @map("expires_at")
  revokedAt         DateTime? @map("revoked_at")
  createdAt         DateTime  @default(now()) @map("created_at")

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

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

model PasswordResetToken {
  id         String    @id @default(uuid())
  userId     String    @map("user_id")
  tokenHash  String    @unique @map("token_hash")
  expiresAt  DateTime  @map("expires_at")
  usedAt     DateTime? @map("used_at")
  createdAt  DateTime  @default(now()) @map("created_at")

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

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

model Role {
  id          String   @id @default(uuid())
  name        String   @unique
  description String?
  isSystem    Boolean  @default(false) @map("is_system")
  createdAt   DateTime @default(now()) @map("created_at")
  updatedAt   DateTime @updatedAt @map("updated_at")

  users       UserRole[]
  permissions RolePermission[]

  @@map("roles")
}

model Permission {
  id          String @id @default(uuid())
  key         String @unique
  description String?

  roles RolePermission[]

  @@map("permissions")
}

model UserRole {
  userId String @map("user_id")
  roleId String @map("role_id")

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

  @@id([userId, roleId])
  @@map("user_roles")
}

model RolePermission {
  roleId       String @map("role_id")
  permissionId String @map("permission_id")

  role       Role       @relation(fields: [roleId], references: [id], onDelete: Cascade)
  permission Permission @relation(fields: [permissionId], references: [id], onDelete: Cascade)

  @@id([roleId, permissionId])
  @@map("role_permissions")
}

model AuditLog {
  id         BigInt   @id @default(autoincrement())
  userId     String?  @map("user_id")
  action     String
  entityType String?  @map("entity_type")
  entityId   String?  @map("entity_id")
  before     Json?
  after      Json?
  ipAddress  String?  @map("ip_address")
  userAgent  String?  @map("user_agent")
  createdAt  DateTime @default(now()) @map("created_at")

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

  @@index([userId])
  @@index([entityType, entityId])
  @@index([createdAt])
  @@map("audit_logs")
}

// ===========================================================================
// Fase 4 — Telefonia. CRUD da aplicação; os objetos PJSIP correspondentes
// (ps_endpoints/ps_auths/ps_aors/ps_endpoint_id_ips/ps_registrations) são
// provisionados no schema "asterisk" pelo TrunksService/ExtensionsService
// (packages/telephony), nunca editados manualmente.
// ===========================================================================

enum TrunkType {
  IP
  AUTH
  REGISTRATION
}

enum DtmfMode {
  rfc4733
  info
  inband
  auto
}

model Trunk {
  id              String    @id @default(uuid())
  name            String    @unique
  type            TrunkType
  host            String
  port            Int       @default(5060)
  transport       String    @default("udp")
  username        String?
  // Segredo cifrado em repouso (AES-256-GCM, master key fora do banco —
  // agente.md seção 55). Nunca retornado em claro pela API após salvar.
  secretEncrypted String?   @map("secret_encrypted")
  fromUser        String?   @map("from_user")
  fromDomain      String?   @map("from_domain")
  contactUser     String?   @map("contact_user")
  outboundProxy   String?   @map("outbound_proxy")
  context         String    @default("outbound")
  callerId        String?   @map("caller_id")
  codecs          String[]  @default(["ulaw", "alaw"])
  dtmfMode        DtmfMode  @default(rfc4733) @map("dtmf_mode")
  qualifyFrequency Int      @default(60) @map("qualify_frequency")
  maxChannels     Int?      @map("max_channels")
  maxCps          Int       @default(5) @map("max_cps")
  allowedIps      String[]  @default([]) @map("allowed_ips")
  enabled         Boolean   @default(true)
  createdAt       DateTime  @default(now()) @map("created_at")
  updatedAt       DateTime  @updatedAt @map("updated_at")

  @@map("trunks")
}

model Extension {
  id                String   @id @default(uuid())
  number            String   @unique
  name              String
  sipPasswordEncrypted String @map("sip_password_encrypted")
  callerId          String?  @map("caller_id")
  context           String   @default("b2bcall-agents")
  codecs            String[] @default(["ulaw", "alaw"])
  transport         String   @default("udp")
  maxContacts       Int      @default(1) @map("max_contacts")
  qualifyFrequency  Int      @default(60) @map("qualify_frequency")
  enabled           Boolean  @default(true)
  createdAt         DateTime @default(now()) @map("created_at")
  updatedAt         DateTime @updatedAt @map("updated_at")

  @@map("extensions")
}

// Último estado conhecido de cada ramal — alimentado por
// apps/asterisk-events a partir de DeviceStateChange/ContactStatus.
// Fonte do painel de monitoramento (nunca polling do Asterisk no frontend).
model ExtensionState {
  extension     String   @id
  deviceState   String?  @map("device_state")
  contactStatus String?  @map("contact_status")
  contactUri    String?  @map("contact_uri")
  updatedAt     DateTime @updatedAt @map("updated_at")

  @@map("extension_states")
}

// ===========================================================================
// Dialplan estruturado e versionado (agente.md seção 21). O modo "Advanced"
// citado na spec é apenas uma restrição de permissão no frontend sobre os
// mesmos dados — não um formato de armazenamento diferente.
// ===========================================================================

model DialplanEntry {
  id          String   @id @default(uuid())
  context     String
  exten       String
  priority    Int
  application String
  argument    String?
  enabled     Boolean  @default(true)
  order       Int      @default(0)
  createdAt   DateTime @default(now()) @map("created_at")
  updatedAt   DateTime @updatedAt @map("updated_at")

  @@index([context])
  @@map("dialplan_entries")
}

enum DialplanVersionStatus {
  APPLIED
  FAILED
  ROLLED_BACK
}

model DialplanVersion {
  id              String                @id @default(uuid())
  generatedConfig String                @map("generated_config")
  status          DialplanVersionStatus
  reloadResult    String?               @map("reload_result")
  createdById     String?               @map("created_by_id")
  createdAt       DateTime              @default(now()) @map("created_at")

  @@map("dialplan_versions")
}