// ============================================================
// 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"]
}

// --------------------------------------------------------
// Company - Unternehmen (uebergeordnete Entity)
// --------------------------------------------------------
model Company {
  id       String @id @default(uuid()) @db.Uuid
  tenantId String @map("tenant_id") @db.Uuid

  name     String  @db.VarChar(200)
  industry String? @db.VarChar(100)

  // Kontaktdaten
  email   String? @db.VarChar(255)
  phone   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")

  // Lexware Office Integration
  lexwareContactId      String?   @map("lexware_contact_id") @db.VarChar(36)
  lexwareContactVersion Int?      @map("lexware_contact_version")
  lexwareSyncedAt       DateTime? @map("lexware_synced_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
  contacts        Contact[]
  deals           Deal[]
  lexwareVouchers LexwareVoucher[]

  @@unique([tenantId, lexwareContactId])
  @@index([tenantId])
  @@index([tenantId, name])
  @@index([tenantId, industry])
  @@index([tenantId, isActive])
  @@map("companies")
  @@schema("app_crm")
}

// --------------------------------------------------------
// Contact - CRM-Kontakte (Personen)
// --------------------------------------------------------
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)

  // Unternehmenszuordnung
  companyId   String? @map("company_id") @db.Uuid
  companyName String? @map("company_name") @db.VarChar(200)
  position    String? @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")

  // Lexware Office Integration
  lexwareContactId      String?   @map("lexware_contact_id") @db.VarChar(36)
  lexwareContactVersion Int?      @map("lexware_contact_version")
  lexwareSyncedAt       DateTime? @map("lexware_synced_at")

  // 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
  company         Company?   @relation(fields: [companyId], references: [id], onDelete: SetNull)
  activities      Activity[]
  deals           Deal[]
  lexwareVouchers LexwareVoucher[]

  @@unique([tenantId, lexwareContactId])
  @@index([tenantId])
  @@index([tenantId, email])
  @@index([tenantId, companyId])
  @@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
  companyId  String?   @map("company_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)
  company      Company?       @relation(fields: [companyId], references: [id], onDelete: SetNull)
  dealVouchers DealVoucher[]

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

enum DealStatus {
  OPEN
  WON
  LOST

  @@schema("app_crm")
}

// --------------------------------------------------------
// Lexware Office Integration - Voucher Types
// --------------------------------------------------------
enum VoucherType {
  QUOTATION
  ORDER_CONFIRMATION
  INVOICE
  CREDIT_NOTE

  @@schema("app_crm")
}

// --------------------------------------------------------
// LexwareVoucher - Gecachte Belege aus Lexware Office
// --------------------------------------------------------
model LexwareVoucher {
  id               String      @id @default(uuid()) @db.Uuid
  tenantId         String      @map("tenant_id") @db.Uuid
  lexwareVoucherId String      @map("lexware_voucher_id") @db.VarChar(36)
  voucherType      VoucherType @map("voucher_type")

  voucherNumber  String?  @map("voucher_number") @db.VarChar(100)
  voucherDate    DateTime? @map("voucher_date")
  voucherStatus  String?  @map("voucher_status") @db.VarChar(50)

  totalGrossAmount Decimal? @map("total_gross_amount") @db.Decimal(15, 2)
  totalNetAmount   Decimal? @map("total_net_amount") @db.Decimal(15, 2)
  totalTaxAmount   Decimal? @map("total_tax_amount") @db.Decimal(15, 2)
  currency         String   @default("EUR") @db.VarChar(3)

  title          String? @db.VarChar(500)
  lineItemsCount Int?    @map("line_items_count")
  lineItemsJson  String? @map("line_items_json") @db.Text

  // Verknuepfung zu Lexware-Kontakt und CRM-Entitaeten
  lexwareContactId String  @map("lexware_contact_id") @db.VarChar(36)
  companyId        String? @map("company_id") @db.Uuid
  contactId        String? @map("contact_id") @db.Uuid

  lexwareDeepLink String? @map("lexware_deep_link") @db.VarChar(500)

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

  // Relationen
  company Company? @relation(fields: [companyId], references: [id], onDelete: SetNull)
  contact Contact? @relation(fields: [contactId], references: [id], onDelete: SetNull)
  deals   DealVoucher[]

  @@unique([tenantId, lexwareVoucherId])
  @@index([tenantId])
  @@index([tenantId, companyId])
  @@index([tenantId, contactId])
  @@index([tenantId, lexwareContactId])
  @@index([tenantId, voucherType])
  @@map("lexware_vouchers")
  @@schema("app_crm")
}

// --------------------------------------------------------
// DealVoucher - Verknuepfung Deal <-> Lexware-Beleg (m:n)
// --------------------------------------------------------
model DealVoucher {
  id        String   @id @default(uuid()) @db.Uuid
  tenantId  String   @map("tenant_id") @db.Uuid
  dealId    String   @map("deal_id") @db.Uuid
  voucherId String   @map("voucher_id") @db.Uuid
  linkedBy  String   @map("linked_by") @db.Uuid
  linkedAt  DateTime @default(now()) @map("linked_at")

  // Relationen
  deal    Deal           @relation(fields: [dealId], references: [id], onDelete: Cascade)
  voucher LexwareVoucher @relation(fields: [voucherId], references: [id], onDelete: Cascade)

  @@unique([dealId, voucherId])
  @@index([tenantId])
  @@index([tenantId, dealId])
  @@index([tenantId, voucherId])
  @@map("deal_vouchers")
  @@schema("app_crm")
}