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

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

enum TeamRole {
  OWNER
  MEMBER
}

enum MessageDirection {
  IN
  OUT
}

enum MessageChannel {
  TELEGRAM
  WHATSAPP
  INSTAGRAM
  PHONE
  EMAIL
  INTERNAL
}

enum ChatRole {
  USER
  ASSISTANT
  SYSTEM
}

model Team {
  id        String   @id @default(cuid())
  name      String
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  members       TeamMember[]
  contacts      Contact[]
  calendarEvents CalendarEvent[]
  conversations ChatConversation[]
  chatMessages  ChatMessage[]
}

model User {
  id        String   @id @default(cuid())
  email     String   @unique
  name      String
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  memberships   TeamMember[]
  conversations ChatConversation[] @relation("ConversationCreator")
  chatMessages  ChatMessage[]      @relation("ChatAuthor")
}

model TeamMember {
  id        String   @id @default(cuid())
  teamId    String
  userId    String
  role      TeamRole @default(MEMBER)
  createdAt DateTime @default(now())

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

  @@unique([teamId, userId])
  @@index([userId])
}

model Contact {
  id        String   @id @default(cuid())
  teamId    String
  name      String
  company   String?
  email     String?
  phone     String?
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  team     Team         @relation(fields: [teamId], references: [id], onDelete: Cascade)
  note     ContactNote?
  messages ContactMessage[]
  events   CalendarEvent[]

  @@index([teamId, updatedAt])
}

model ContactNote {
  id        String   @id @default(cuid())
  contactId String   @unique
  content   String
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

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

model ContactMessage {
  id         String           @id @default(cuid())
  contactId  String
  direction  MessageDirection
  channel    MessageChannel
  content    String
  occurredAt DateTime         @default(now())
  createdAt  DateTime         @default(now())

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

  @@index([contactId, occurredAt])
}

model CalendarEvent {
  id        String   @id @default(cuid())
  teamId    String
  contactId String?
  title     String
  startsAt  DateTime
  endsAt    DateTime?
  note      String?
  status    String?
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  team    Team     @relation(fields: [teamId], references: [id], onDelete: Cascade)
  contact Contact? @relation(fields: [contactId], references: [id], onDelete: SetNull)

  @@index([startsAt])
  @@index([contactId, startsAt])
  @@index([teamId, startsAt])
}

model ChatConversation {
  id              String   @id @default(cuid())
  teamId          String
  createdByUserId String
  title           String?
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt

  team          Team         @relation(fields: [teamId], references: [id], onDelete: Cascade)
  createdByUser User         @relation("ConversationCreator", fields: [createdByUserId], references: [id], onDelete: Cascade)
  messages      ChatMessage[]

  @@index([teamId, updatedAt])
  @@index([createdByUserId])
}

model ChatMessage {
  id        String   @id @default(cuid())
  teamId    String
  conversationId String
  authorUserId String?
  role      ChatRole
  text      String
  planJson  Json?
  createdAt DateTime @default(now())

  team         Team             @relation(fields: [teamId], references: [id], onDelete: Cascade)
  conversation ChatConversation @relation(fields: [conversationId], references: [id], onDelete: Cascade)
  authorUser   User?            @relation("ChatAuthor", fields: [authorUserId], references: [id], onDelete: SetNull)

  @@index([createdAt])
  @@index([teamId, createdAt])
  @@index([conversationId, createdAt])
}