// ============================================================
// INSIGHT CRM Service - Prisma Schema
// ============================================================
// Eigenes Schema im PostgreSQL-Schema 'app_crm'
// Eigener Prisma-Client-Output (kein Konflikt mit Core)
// ============================================================

generator client {
  provider = "prisma-client-js"
  output   = "../node_modules/.prisma/crm-client"
}

datasource db {
  provider  = "postgresql"
  url       = env("DATABASE_URL")
  directUrl = env("DATABASE_URL_DIRECT")
  schemas   = ["app_crm"]
}

// --------------------------------------------------------
// Contact - CRM-Kontakte (Personen & Organisationen)
// --------------------------------------------------------
model Contact {
  id        String      @id @default(uuid()) @db.Uuid
  tenantId  String      @map("tenant_id") @db.Uuid
  type      ContactType @default(PERSON)

  // Person
  firstName String? @map("first_name") @db.VarChar(100)
  lastName  String? @map("last_name") @db.VarChar(100)

  // Organisation
  companyName String? @map("company_name") @db.VarChar(200)

  // Kontaktdaten
  email   String? @db.VarChar(255)
  phone   String? @db.VarChar(50)
  mobile  String? @db.VarChar(50)
  website String? @db.VarChar(500)

  // Adresse
  street  String? @db.VarChar(200)
  zip     String? @db.VarChar(20)
  city    String? @db.VarChar(100)
  state   String? @db.VarChar(100)
  country String? @default("DE") @db.VarChar(2)

  // Zusaetzlich
  notes String?  @db.Text
  tags  String[] @default([])

  isActive Boolean @default(true) @map("is_active")

  // Audit-Trail (User-IDs aus platform_core)
  createdBy String  @map("created_by") @db.Uuid
  updatedBy String? @map("updated_by") @db.Uuid

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  // Relationen
  activities Activity[]
  deals      Deal[]

  @@index([tenantId])
  @@index([tenantId, email])
  @@index([tenantId, companyName])
  @@index([tenantId, lastName, firstName])
  @@index([tenantId, isActive])
  @@map("contacts")
  @@schema("app_crm")
}

enum ContactType {
  PERSON
  ORGANIZATION

  @@schema("app_crm")
}

// --------------------------------------------------------
// Activity - CRM-Aktivitaeten (Notizen, Anrufe, E-Mails)
// --------------------------------------------------------
model Activity {
  id          String       @id @default(uuid()) @db.Uuid
  tenantId    String       @map("tenant_id") @db.Uuid
  contactId   String       @map("contact_id") @db.Uuid
  type        ActivityType
  subject     String       @db.VarChar(500)
  description String?      @db.Text

  // Terminierung
  scheduledAt DateTime? @map("scheduled_at")
  completedAt DateTime? @map("completed_at")

  // Audit-Trail
  createdBy String  @map("created_by") @db.Uuid
  updatedBy String? @map("updated_by") @db.Uuid

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  // Relationen
  contact Contact @relation(fields: [contactId], references: [id], onDelete: Cascade)

  @@index([tenantId])
  @@index([tenantId, contactId])
  @@index([tenantId, type])
  @@index([tenantId, scheduledAt])
  @@map("activities")
  @@schema("app_crm")
}

enum ActivityType {
  NOTE
  CALL
  EMAIL
  MEETING
  TASK

  @@schema("app_crm")
}

// --------------------------------------------------------
// Pipeline - Sales-Pipelines (konfigurierbar pro Tenant)
// --------------------------------------------------------
model Pipeline {
  id       String @id @default(uuid()) @db.Uuid
  tenantId String @map("tenant_id") @db.Uuid
  name     String @db.VarChar(200)

  isDefault Boolean @default(false) @map("is_default")
  isActive  Boolean @default(true) @map("is_active")

  // Audit-Trail
  createdBy String  @map("created_by") @db.Uuid
  updatedBy String? @map("updated_by") @db.Uuid

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  // Relationen
  stages PipelineStage[]
  deals  Deal[]

  @@index([tenantId])
  @@index([tenantId, isActive])
  @@map("pipelines")
  @@schema("app_crm")
}

// --------------------------------------------------------
// PipelineStage - Stufen einer Pipeline (z.B. Lead, Angebot)
// --------------------------------------------------------
model PipelineStage {
  id         String @id @default(uuid()) @db.Uuid
  pipelineId String @map("pipeline_id") @db.Uuid
  name       String @db.VarChar(200)
  sortOrder  Int    @default(0) @map("sort_order")
  color      String @default("#6B7280") @db.VarChar(7)

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  // Relationen
  pipeline Pipeline @relation(fields: [pipelineId], references: [id], onDelete: Cascade)
  deals    Deal[]

  @@index([pipelineId])
  @@index([pipelineId, sortOrder])
  @@map("pipeline_stages")
  @@schema("app_crm")
}

// --------------------------------------------------------
// Deal - Verkaufschancen / Deals
// --------------------------------------------------------
model Deal {
  id         String    @id @default(uuid()) @db.Uuid
  tenantId   String    @map("tenant_id") @db.Uuid
  pipelineId String    @map("pipeline_id") @db.Uuid
  stageId    String    @map("stage_id") @db.Uuid
  contactId  String?   @map("contact_id") @db.Uuid
  title      String    @db.VarChar(500)
  value      Decimal?  @db.Decimal(15, 2)
  currency   String    @default("EUR") @db.VarChar(3)
  status     DealStatus @default(OPEN)

  expectedCloseDate DateTime? @map("expected_close_date")
  closedAt          DateTime? @map("closed_at")
  notes             String?   @db.Text

  // Audit-Trail
  createdBy String  @map("created_by") @db.Uuid
  updatedBy String? @map("updated_by") @db.Uuid

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  // Relationen
  pipeline Pipeline       @relation(fields: [pipelineId], references: [id], onDelete: Cascade)
  stage    PipelineStage   @relation(fields: [stageId], references: [id])
  contact  Contact?        @relation(fields: [contactId], references: [id], onDelete: SetNull)

  @@index([tenantId])
  @@index([tenantId, pipelineId])
  @@index([tenantId, stageId])
  @@index([tenantId, contactId])
  @@index([tenantId, status])
  @@map("deals")
  @@schema("app_crm")
}

enum DealStatus {
  OPEN
  WON
  LOST

  @@schema("app_crm")
}