// AR-ProjectManagement — Prisma Schema
// Base de datos: PostgreSQL 16

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

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

// ============================================================
// ENUMS
// ============================================================
enum Role {
  SUPER_ADMIN
  DIRECTOR
  GERENTE
  JEFE_AREA
  COLABORADOR
  FINANCIERO
  AUDITOR
}

enum ProjectStatus {
  ACTIVO
  PAUSADO
  COMPLETADO
  EN_RIESGO
  CANCELADO
}

enum TaskStatus {
  PENDIENTE
  EN_PROCESO
  BLOQUEADA
  EN_VERIFICACION
  NO_CONFORME
  APROBADO_TECNICO
  ACEPTADO_FORMAL
  COMPLETADA
}

enum Priority {
  CRITICO
  ALTO
  MEDIO
  BAJO
}

// ============================================================
// MODULO 1: USUARIOS Y AUTENTICACION
// ============================================================
model User {
  id                   String    @id @default(uuid())
  email                String    @unique
  passwordHash         String    @map("password_hash")
  firstName            String    @map("first_name")
  lastName             String    @map("last_name")
  role                 Role      @default(COLABORADOR)
  isActive             Boolean   @default(true) @map("is_active")
  isTwoFactorEnabled   Boolean   @default(false) @map("is_two_factor_enabled")
  twoFactorSecret      String?   @map("two_factor_secret")
  loginAttempts        Int       @default(0) @map("login_attempts")
  lockedUntil          DateTime? @map("locked_until")
  lastLoginAt          DateTime? @map("last_login_at")
  lastLoginIp          String?   @map("last_login_ip")
  avatarUrl            String?   @map("avatar_url")
  phone                String?
  department           String?
  jobTitle             String?   @map("job_title")
  createdAt            DateTime  @default(now()) @map("created_at")
  updatedAt            DateTime  @updatedAt @map("updated_at")

  refreshTokens  RefreshToken[]
  auditLogs      AuditLog[]
  projectMembers ProjectMember[]
  tasksAssigned  Task[]          @relation("TaskAssignee")
  tasksCreated   Task[]          @relation("TaskCreator")
  comments       Comment[]

  @@map("users")
}

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

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

  @@map("refresh_tokens")
}

// ============================================================
// LOG DE AUDITORIA INMUTABLE
// ============================================================
model AuditLog {
  id        String   @id @default(uuid())
  userId    String?  @map("user_id")
  action    String
  entity    String
  entityId  String?  @map("entity_id")
  oldValues Json?    @map("old_values")
  newValues Json?    @map("new_values")
  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)

  @@map("audit_logs")
}

// ============================================================
// MODULO 3: PROYECTOS
// ============================================================
model Project {
  id             String        @id @default(uuid())
  code           String        @unique
  name           String
  description    String?
  type           String
  category       String
  client         String?
  startDate      DateTime      @map("start_date")
  plannedEndDate DateTime      @map("planned_end_date")
  actualEndDate  DateTime?     @map("actual_end_date")
  budget         Decimal       @db.Decimal(15, 2)
  contingencyPct Decimal       @default(10) @map("contingency_pct") @db.Decimal(5, 2)
  currency       String        @default("USD")
  priority       Priority      @default(MEDIO)
  status         ProjectStatus @default(ACTIVO)
  currentPhase   String?       @map("current_phase")
  methodology    String?
  tags           String[]
  ragStatus      String        @default("VERDE") @map("rag_status")
  progressPct    Decimal       @default(0) @map("progress_pct") @db.Decimal(5, 2)
  createdAt      DateTime      @default(now()) @map("created_at")
  updatedAt      DateTime      @updatedAt @map("updated_at")

  members ProjectMember[]
  tasks   Task[]

  @@map("projects")
}

model ProjectMember {
  id        String   @id @default(uuid())
  projectId String   @map("project_id")
  userId    String   @map("user_id")
  role      String
  joinedAt  DateTime @default(now()) @map("joined_at")

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

  @@unique([projectId, userId])
  @@map("project_members")
}

// ============================================================
// MODULO 4: TAREAS
// ============================================================
model Task {
  id             String     @id @default(uuid())
  projectId      String     @map("project_id")
  parentId       String?    @map("parent_id")
  wbsId          String?    @map("wbs_id")
  title          String
  description    String?
  assigneeId     String?    @map("assignee_id")
  createdById    String     @map("created_by_id")
  startDate      DateTime?  @map("start_date")
  dueDate        DateTime?  @map("due_date")
  estimatedHours Decimal?   @map("estimated_hours") @db.Decimal(8, 2)
  actualHours    Decimal?   @map("actual_hours") @db.Decimal(8, 2)
  progressPct    Decimal    @default(0) @map("progress_pct") @db.Decimal(5, 2)
  status         TaskStatus @default(PENDIENTE)
  priority       Priority   @default(MEDIO)
  estimatedCost  Decimal?   @map("estimated_cost") @db.Decimal(15, 2)
  actualCost     Decimal?   @map("actual_cost") @db.Decimal(15, 2)
  tags           String[]
  createdAt      DateTime   @default(now()) @map("created_at")
  updatedAt      DateTime   @updatedAt @map("updated_at")

  project  Project   @relation(fields: [projectId], references: [id], onDelete: Cascade)
  assignee User?     @relation("TaskAssignee", fields: [assigneeId], references: [id])
  creator  User      @relation("TaskCreator", fields: [createdById], references: [id])
  parent   Task?     @relation("TaskChildren", fields: [parentId], references: [id])
  children Task[]    @relation("TaskChildren")
  comments Comment[]

  @@map("tasks")
}

model Comment {
  id        String   @id @default(uuid())
  taskId    String   @map("task_id")
  userId    String   @map("user_id")
  content   String
  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

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

  @@map("comments")
}