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

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

enum UserStatus {
  ACTIVE
  DISABLED
}

enum PermissionType {
  MENU
  BUTTON
  API
}

enum LampStatus {
  NORMAL
  FAULT
  MAINTENANCE
  OFFLINE
}

enum OnlineStatus {
  ONLINE
  OFFLINE
}

enum AlarmLevel {
  LOW
  MEDIUM
  HIGH
  CRITICAL
}

enum AlarmStatus {
  OPEN
  PROCESSING
  RESOLVED
  IGNORED
}

model Tenant {
  id        String   @id @default(cuid())
  name      String
  code      String   @unique
  enabled   Boolean  @default(true)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
  users     User[]
  roles     Role[]
  lamps     StreetLamp[]
  alarms    Alarm[]
}

model User {
  id           String           @id @default(cuid())
  username     String
  passwordHash String
  name         String
  phone        String?
  email        String?
  status       UserStatus       @default(ACTIVE)
  tenantId     String?
  tenant       Tenant?          @relation(fields: [tenantId], references: [id])
  roles        UserRole[]
  regionScopes UserRegionScope[]
  alarmHandles AlarmHandleRecord[]
  createdAt    DateTime         @default(now())
  updatedAt    DateTime         @updatedAt

  @@unique([tenantId, username])
}

model Role {
  id           String            @id @default(cuid())
  name         String
  code         String
  description  String?
  tenantId     String?
  tenant       Tenant?           @relation(fields: [tenantId], references: [id])
  users        UserRole[]
  permissions  RolePermission[]
  regionScopes RoleRegionScope[]
  createdAt    DateTime          @default(now())
  updatedAt    DateTime          @updatedAt

  @@unique([tenantId, code])
}

model Permission {
  id        String           @id @default(cuid())
  name      String
  code      String           @unique
  type      PermissionType
  parentId  String?
  path      String?
  sort      Int              @default(0)
  roles     RolePermission[]
  createdAt DateTime         @default(now())
  updatedAt DateTime         @updatedAt
}

model UserRole {
  userId String
  roleId String
  user   User   @relation(fields: [userId], references: [id], onDelete: Cascade)
  role   Role   @relation(fields: [roleId], references: [id], onDelete: Cascade)

  @@id([userId, roleId])
}

model RolePermission {
  roleId       String
  permissionId String
  role         Role       @relation(fields: [roleId], references: [id], onDelete: Cascade)
  permission   Permission @relation(fields: [permissionId], references: [id], onDelete: Cascade)

  @@id([roleId, permissionId])
}

model Region {
  id            String            @id @default(cuid())
  code          String            @unique
  name          String
  level         Int
  parentId      String?
  parent        Region?           @relation("RegionTree", fields: [parentId], references: [id])
  children      Region[]          @relation("RegionTree")
  longitude     Decimal?          @db.Decimal(10, 6)
  latitude      Decimal?          @db.Decimal(10, 6)
  userScopes    UserRegionScope[]
  roleScopes    RoleRegionScope[]
  lamps         StreetLamp[]
  alarms        Alarm[]
  createdAt     DateTime          @default(now())
  updatedAt     DateTime          @updatedAt
}

model UserRegionScope {
  userId   String
  regionId String
  user     User   @relation(fields: [userId], references: [id], onDelete: Cascade)
  region   Region @relation(fields: [regionId], references: [id], onDelete: Cascade)

  @@id([userId, regionId])
}

model RoleRegionScope {
  roleId   String
  regionId String
  role     Role   @relation(fields: [roleId], references: [id], onDelete: Cascade)
  region   Region @relation(fields: [regionId], references: [id], onDelete: Cascade)

  @@id([roleId, regionId])
}

model StreetLamp {
  id             String       @id @default(cuid())
  code           String       @unique
  name           String
  tenantId       String?
  tenant         Tenant?      @relation(fields: [tenantId], references: [id])
  regionId       String
  region         Region       @relation(fields: [regionId], references: [id])
  address        String?
  longitude      Decimal      @db.Decimal(10, 6)
  latitude       Decimal      @db.Decimal(10, 6)
  deviceType     String?
  status         LampStatus   @default(NORMAL)
  onlineStatus   OnlineStatus @default(ONLINE)
  isPowerOn      Boolean?
  lastReportedAt DateTime?
  alarms         Alarm[]
  createdAt      DateTime     @default(now())
  updatedAt      DateTime     @updatedAt

  @@index([regionId])
}

model Alarm {
  id            String              @id @default(cuid())
  sourceAlarmId String?             @unique
  tenantId      String?
  tenant        Tenant?             @relation(fields: [tenantId], references: [id])
  lampId        String
  lamp          StreetLamp          @relation(fields: [lampId], references: [id])
  regionId      String
  region        Region              @relation(fields: [regionId], references: [id])
  type          String
  title         String
  description   String?
  level         AlarmLevel           @default(MEDIUM)
  status        AlarmStatus          @default(OPEN)
  occurredAt    DateTime
  recoveredAt   DateTime?
  handledAt     DateTime?
  handleRecords AlarmHandleRecord[]
  events        AlarmEvent[]
  createdAt     DateTime            @default(now())
  updatedAt     DateTime            @updatedAt

  @@index([regionId, status])
  @@index([lampId])
}

model AlarmEvent {
  id        String   @id @default(cuid())
  alarmId   String
  alarm     Alarm    @relation(fields: [alarmId], references: [id], onDelete: Cascade)
  eventType String
  payload   Json?
  createdAt DateTime @default(now())
}

model AlarmHandleRecord {
  id        String   @id @default(cuid())
  alarmId   String
  alarm     Alarm    @relation(fields: [alarmId], references: [id], onDelete: Cascade)
  userId    String?
  user      User?    @relation(fields: [userId], references: [id])
  action    String
  remark    String?
  createdAt DateTime @default(now())
}

model OperationLog {
  id        String   @id @default(cuid())
  userId    String?
  action    String
  resource  String
  detail    Json?
  ip        String?
  createdAt DateTime @default(now())
}