// This is your Prisma schema file,
// learn more about it in the docs: https://pris.ly/d/prisma-schema

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

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

model Taxonomy {
  id        String    @id @default(uuid())
  name      String    @unique
  deletedAt DateTime?
  terms     Term[]
  order     Int

  @@index([order, deletedAt])
}

model Relation {
  id           String    @id @default(uuid())
  aId          String
  bId          String
  aType        String
  bType        String
  relationType String
  createdAt    DateTime? @default(now())

  @@unique([aId, bId, aType, bType, relationType])
  @@map("relations")
}

model Term {
  id          String         @id @default(uuid())
  name        String
  taxonomy    Taxonomy?      @relation(fields: [taxonomyId], references: [id])
  taxonomyId  String?
  order       Int
  description String?
  parentId    String?
  parent      Term?          @relation("ChildParent", fields: [parentId], references: [id], onDelete: Cascade)
  children    Term[]         @relation("ChildParent")
  ancestors   TermAncestry[] @relation("DescendantToAncestor")
  descendants TermAncestry[] @relation("AncestorToDescendant")

  domainId     String?
  domain       Department? @relation("TermDom", fields: [domainId], references: [id])
  createdAt    DateTime    @default(now())
  updatedAt    DateTime    @updatedAt
  deletedAt    DateTime?
  createdBy    String
  createdStaff Staff?      @relation(fields: [staffId], references: [id])
  staffId      String?

  @@index([name]) // 对name字段建立索引，以加快基于name的查找速度
  @@index([parentId]) // 对parentId字段建立索引，以加快基于parentId的查找速度
  @@map("terms")
}

model TermAncestry {
  id           String    @id @default(uuid())
  ancestorId   String
  descendantId String
  relDepth     Int
  ancestor     Term      @relation("AncestorToDescendant", fields: [ancestorId], references: [id], onDelete: Cascade)
  descendant   Term      @relation("DescendantToAncestor", fields: [descendantId], references: [id], onDelete: Cascade)
  createdAt    DateTime? @default(now())
}

model Comment {
  id           String    @id @default(uuid())
  style        String
  link         String?
  title        String?
  content      String
  attachments  String[]  @default([])
  createdAt    DateTime? @default(now())
  updatedAt    DateTime  @updatedAt
  deletedAt    DateTime?
  createdBy    String?
  createdStaff Staff?    @relation(fields: [createdBy], references: [id])

  @@map("comments")
}

model Staff {
  id            String         @id @default(uuid())
  showname      String?
  username      String         @unique
  password      String
  phoneNumber   String?        @unique
  domainId      String?
  deptId        String?
  domain        Department?    @relation("DomainStaff", fields: [domainId], references: [id])
  department    Department?    @relation("DeptStaff", fields: [deptId], references: [id])
  registerToken String?
  order         Int
  deletedAt     DateTime?
  system        Boolean?       @default(false)
  comments      Comment[]
  terms         Term[]
  refreshTokens RefreshToken[]
}

model RefreshToken {
  id        String   @id @default(uuid())
  token     String   @unique
  staffId   String
  staff     Staff    @relation(fields: [staffId], references: [id])
  createdAt DateTime @default(now())

  @@map("refreshTokens")
}

model Department {
  id           String         @id @default(uuid())
  name         String
  order        Int
  ancestors    DeptAncestry[] @relation("DescendantToAncestor")
  descendants  DeptAncestry[] @relation("AncestorToDescendant")
  parentId     String?        @map("parentId")
  parent       Department?    @relation("ChildParent", fields: [parentId], references: [id])
  children     Department[]   @relation("ChildParent")
  domainTerms  Term[]         @relation("TermDom")
  deletedAt    DateTime?
  isDomain     Boolean?       @default(false)
  domainStaffs Staff[]        @relation("DomainStaff")
  deptStaffs   Staff[]        @relation("DeptStaff")
}

model DeptAncestry {
  ancestorId   String
  descendantId String
  relDepth     Int
  ancestor     Department @relation("AncestorToDescendant", fields: [ancestorId], references: [id])
  descendant   Department @relation("DescendantToAncestor", fields: [descendantId], references: [id])

  @@id([descendantId, ancestorId])
  @@index([ancestorId]) // 对ancestorId字段建立索引，以加快基于ancestorId的查找速度
  @@index([descendantId]) // 对descendantId字段建立索引，以加快基于descendantId的查找速度
}

model RoleMap {
  id         String  @id @default(uuid())
  objectId   String
  roleId     String
  domainId   String?
  objectType String
  role       Role    @relation(fields: [roleId], references: [id])
}

model Role {
  id          String    @id @default(uuid())
  name        String    @unique
  permissions String[]  @default([])
  roleMaps    RoleMap[]
  deletedAt   DateTime?
  system      Boolean?  @default(false)
}