@startuml Entity Structures

!define ENTITY class
!define COLLECTION database

title Структура сущностей для Crowd Reports Sources

package "Cameras" {
  ENTITY Camera_Entity {
    +id: "server_id:camera_index"
    +server_id: string
    +camera_index: string
    +name: string
    +owner_id: string
  }
  
  COLLECTION servers_collection {
    _id: ObjectId (server_id)
    owner_id: string
    name: string
    cameras: {
      "0": {name: "Камера 1", active: true},
      "1": {name: "Камера 2", active: true}
    }
    cam_services: {
      "0": {crowd: {active: true}},
      "1": {crowd: {active: true}}
    }
  }
}

package "Folders" {
  ENTITY Folder_Entity {
    +id: ObjectId (folder_id)
    +name: string
    +owner_id: string
    +parents: List[string]
    +objects: List[object_info]
  }
  
  COLLECTION folders_collection {
    _id: ObjectId (folder_id)
    owner_id: string
    name: string
    parents: []
    objects: [
      {object_type: "camera", object_id: "server:0"},
      {object_type: "camera", object_id: "server:1"}
    ]
  }
}

package "Detection Zones" {
  ENTITY Zone_Entity {
    +id: string (zone_id)
    +camera_id: "server_id:camera_index"
    +owner_id: string
    +name: string
    +polygon: List[coordinates]
  }
  
  COLLECTION zones_collection {
    _id: string (zone_id)
    owner_id: string
    camera_id: "server_id:camera_index"
    name: string
    polygon: [...]
    deleted: false
  }
}

' Relationships
Camera_Entity --> servers_collection : stored in
Folder_Entity --> folders_collection : stored in  
Zone_Entity --> zones_collection : stored in

servers_collection --> zones_collection : "camera_id links"
folders_collection --> servers_collection : "contains camera references"

note right of Camera_Entity
  ID составляется из:
  server_id + ":" + camera_index
  
  Пример:
  "507f1f77bcf86cd799439011:0"
end note

note right of Folder_Entity
  objects[] может содержать:
  - cameras
  - другие folders (вложенность)
  - другие типы объектов
end note

note right of Zone_Entity
  Каждая зона привязана 
  к конкретной камере через
  camera_id поле
end note

@enduml