TicketingSystem/server/prisma/schema.prisma

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

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

enum Role {
  ADMIN
  AGENT
  USER
  SERVICE
}

enum TicketStatus {
  OPEN
  IN_PROGRESS
  RESOLVED
  CLOSED
}

model User {
  id                String   @id @default(cuid())
  username          String   @unique
  email             String   @unique
  passwordHash      String
  displayName       String
  role              Role     @default(AGENT)
  apiKey            String?  @unique
  notificationPrefs Json?
  createdAt         DateTime @default(now())
  updatedAt         DateTime @updatedAt

  assignedTickets Ticket[]       @relation("AssignedTickets")
  createdTickets  Ticket[]       @relation("CreatedTickets")
  comments        Comment[]
  auditLogs       AuditLog[]
  attachments     Attachment[]
  notifications   Notification[]
  savedViews      SavedView[]
}

model Category {
  id      String   @id @default(cuid())
  name    String   @unique
  types   Type[]
  tickets Ticket[]
}

model Type {
  id         String   @id @default(cuid())
  name       String
  categoryId String
  category   Category @relation(fields: [categoryId], references: [id], onDelete: Cascade)
  items      Item[]
  tickets    Ticket[]

  @@unique([categoryId, name])
}

model Item {
  id      String   @id @default(cuid())
  name    String
  typeId  String
  type    Type     @relation(fields: [typeId], references: [id], onDelete: Cascade)
  tickets Ticket[]

  @@unique([typeId, name])
}

model Ticket {
  id          String       @id @default(cuid())
  displayId   String       @unique @default(dbgenerated("concat('V', (floor(random() * 900000000) + 100000000)::bigint::text)"))
  title       String
  overview    String
  severity    Int
  status      TicketStatus @default(OPEN)
  categoryId  String
  typeId      String
  itemId      String
  assigneeId  String?
  createdById String

  resolvedAt DateTime?
  createdAt  DateTime  @default(now())
  updatedAt  DateTime  @updatedAt

  category      Category       @relation(fields: [categoryId], references: [id])
  type          Type           @relation(fields: [typeId], references: [id])
  item          Item           @relation(fields: [itemId], references: [id])
  assignee      User?          @relation("AssignedTickets", fields: [assigneeId], references: [id])
  createdBy     User           @relation("CreatedTickets", fields: [createdById], references: [id])
  comments      Comment[]
  auditLogs     AuditLog[]
  attachments   Attachment[]
  notifications Notification[]

  @@index([status])
  @@index([severity])
  @@index([assigneeId])
  @@index([createdById])
  @@index([createdAt])
}

model Comment {
  id        String   @id @default(cuid())
  body      String
  ticketId  String
  authorId  String
  createdAt DateTime @default(now())

  ticket        Ticket         @relation(fields: [ticketId], references: [id], onDelete: Cascade)
  author        User           @relation(fields: [authorId], references: [id])
  attachments   Attachment[]
  notifications Notification[]

  @@index([ticketId])
}

model Attachment {
  id           String   @id @default(cuid())
  filename     String
  mimetype     String
  size         Int
  storagePath  String
  ticketId     String?
  commentId    String?
  uploadedById String
  createdAt    DateTime @default(now())

  ticket     Ticket?  @relation(fields: [ticketId], references: [id], onDelete: Cascade)
  comment    Comment? @relation(fields: [commentId], references: [id], onDelete: Cascade)
  uploadedBy User     @relation(fields: [uploadedById], references: [id])

  @@index([ticketId])
  @@index([commentId])
}

model Webhook {
  id        String   @id @default(cuid())
  name      String
  url       String
  events    String[]
  secret    String
  active    Boolean  @default(true)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
}

model Notification {
  id        String    @id @default(cuid())
  userId    String
  kind      String
  ticketId  String?
  commentId String?
  data      Json?
  readAt    DateTime?
  createdAt DateTime  @default(now())

  user    User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  ticket  Ticket?  @relation(fields: [ticketId], references: [id], onDelete: Cascade)
  comment Comment? @relation(fields: [commentId], references: [id], onDelete: Cascade)

  @@index([userId, readAt])
  @@index([userId, createdAt])
}

model SavedView {
  id        String   @id @default(cuid())
  userId    String
  name      String
  filters   Json
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

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

  @@unique([userId, name])
}

model AuditLog {
  id        String   @id @default(cuid())
  ticketId  String
  userId    String
  action    String
  detail    String?
  createdAt DateTime @default(now())

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