@startuml Folder System Architecture

  title Система папок/групп в Ivideon

  package "Database" @startuml FolderSystemSimple

  title Система папок в Ivideon

  entity "folders" as folders_db {
    * _id : ObjectId
    --
    * owner_id : string
    * name : string
    * parents : array
    * objects : array
    * root : boolean
  }

  entity "permission_grants" as grants_db {
    * _id : ObjectId
    --
    * object_id : string
    * object_type : string
    * grantee_id : string
    * permissions : array
  }

  entity "servers" as servers_db {
    * _id : ObjectId
    --
    * owner_id : string
    * cameras : object
  }

  entity "Folder" as folder_class {
    + get_objects(type)
    + add_object(obj)
    + remove_object(obj)
    + has_permissions(perm)
  }

  entity "FolderTree" as tree_class {
    + folders : dict
    + find_folders()
    + reload()
  }

  entity "Camera" as camera_node {
    + id : "server:index"
    + object_type : "camera"
  }

  folders_db ||--o{ folder_class
  grants_db ||--o{ folder_class
  servers_db ||--o{ camera_node

  tree_class --> folder_class : manages
  folder_class --> camera_node : contains

  note right of folders_db
  objects[] format:
  [
    {object_type: "camera",
     object_id: "server:0"},
    {object_type: "folder",
     object_id: "subfolder_id"}
  ]
  end note

  note bottom of tree_class
  Usage:
  tree = FolderTree(user_id)
  folder = tree.folders[folder_id]
  cameras = folder.get_objects("camera")
  end note

  @enduml
@startuml FolderSystemSimple

  title Система папок в Ivideon

  entity "folders" as folders_db {
    * _id : ObjectId
    --
    * owner_id : string
    * name : string
    * parents : array
    * objects : array
    * root : boolean
  }

  entity "permission_grants" as grants_db {
    * _id : ObjectId
    --
    * object_id : string
    * object_type : string
    * grantee_id : string
    * permissions : array
  }

  entity "servers" as servers_db {
    * _id : ObjectId
    --
    * owner_id : string
    * cameras : object
  }

  entity "Folder" as folder_class {
    + get_objects(type)
    + add_object(obj)
    + remove_object(obj)
    + has_permissions(perm)
  }

  entity "FolderTree" as tree_class {
    + folders : dict
    + find_folders()
    + reload()
  }

  entity "Camera" as camera_node {
    + id : "server:index"
    + object_type : "camera"
  }

  folders_db ||--o{ folder_class
  grants_db ||--o{ folder_class
  servers_db ||--o{ camera_node

  tree_class --> folder_class : manages
  folder_class --> camera_node : contains

  note right of folders_db
  objects[] format:
  [
    {object_type: "camera",
     object_id: "server:0"},
    {object_type: "folder",
     object_id: "subfolder_id"}
  ]
  end note

  note bottom of tree_class
  Usage:
  tree = FolderTree(user_id)
  folder = tree.folders[folder_id]
  cameras = folder.get_objects("camera")
  end note

  @enduml
@startuml FolderSystemSimple

  title Система папок в Ivideon

  entity "folders" as folders_db {
    * _id : ObjectId
    --
    * owner_id : string
    * name : string
    * parents : array
    * objects : array
    * root : boolean
  }

  entity "permission_grants" as grants_db {
    * _id : ObjectId
    --
    * object_id : string
    * object_type : string
    * grantee_id : string
    * permissions : array
  }

  entity "servers" as servers_db {
    * _id : ObjectId
    --
    * owner_id : string
    * cameras : object
  }

  entity "Folder" as folder_class {
    + get_objects(type)
    + add_object(obj)
    + remove_object(obj)
    + has_permissions(perm)
  }

  entity "FolderTree" as tree_class {
    + folders : dict
    + find_folders()
    + reload()
  }

  entity "Camera" as camera_node {
    + id : "server:index"
    + object_type : "camera"
  }

  folders_db ||--o{ folder_class
  grants_db ||--o{ folder_class
  servers_db ||--o{ camera_node

  tree_class --> folder_class : manages
  folder_class --> camera_node : contains

  note right of folders_db
  objects[] format:
  [
    {object_type: "camera",
     object_id: "server:0"},
    {object_type: "folder",
     object_id: "subfolder_id"}
  ]
  end note

  note bottom of tree_class
  Usage:
  tree = FolderTree(user_id)
  folder = tree.folders[folder_id]
  cameras = folder.get_objects("camera")
  end note

  @enduml
@startuml FolderSystemSimple

  title Система папок в Ivideon

  entity "folders" as folders_db {
    * _id : ObjectId
    --
    * owner_id : string
    * name : string
    * parents : array
    * objects : array
    * root : boolean
  }

  entity "permission_grants" as grants_db {
    * _id : ObjectId
    --
    * object_id : string
    * object_type : string
    * grantee_id : string
    * permissions : array
  }

  entity "servers" as servers_db {
    * _id : ObjectId
    --
    * owner_id : string
    * cameras : object
  }

  entity "Folder" as folder_class {
    + get_objects(type)
    + add_object(obj)
    + remove_object(obj)
    + has_permissions(perm)
  }

  entity "FolderTree" as tree_class {
    + folders : dict
    + find_folders()
    + reload()
  }

  entity "Camera" as camera_node {
    + id : "server:index"
    + object_type : "camera"
  }

  folders_db ||--o{ folder_class
  grants_db ||--o{ folder_class
  servers_db ||--o{ camera_node

  tree_class --> folder_class : manages
  folder_class --> camera_node : contains

  note right of folders_db
  objects[] format:
  [
    {object_type: "camera",
     object_id: "server:0"},
    {object_type: "folder",
     object_id: "subfolder_id"}
  ]
  end note

  note bottom of tree_class
  Usage:
  tree = FolderTree(user_id)
  folder = tree.folders[folder_id]
  cameras = folder.get_objects("camera")
  end note

  @enduml
@startuml FolderSystemSimple

  title Система папок в Ivideon

  entity "folders" as folders_db {
    * _id : ObjectId
    --
    * owner_id : string
    * name : string
    * parents : array
    * objects : array
    * root : boolean
  }

  entity "permission_grants" as grants_db {
    * _id : ObjectId
    --
    * object_id : string
    * object_type : string
    * grantee_id : string
    * permissions : array
  }

  entity "servers" as servers_db {
    * _id : ObjectId
    --
    * owner_id : string
    * cameras : object
  }

  entity "Folder" as folder_class {
    + get_objects(type)
    + add_object(obj)
    + remove_object(obj)
    + has_permissions(perm)
  }

  entity "FolderTree" as tree_class {
    + folders : dict
    + find_folders()
    + reload()
  }

  entity "Camera" as camera_node {
    + id : "server:index"
    + object_type : "camera"
  }

  folders_db ||--o{ folder_class
  grants_db ||--o{ folder_class
  servers_db ||--o{ camera_node

  tree_class --> folder_class : manages
  folder_class --> camera_node : contains

  note right of folders_db
  objects[] format:
  [
    {object_type: "camera",
     object_id: "server:0"},
    {object_type: "folder",
     object_id: "subfolder_id"}
  ]
  end note

  note bottom of tree_class
  Usage:
  tree = FolderTree(user_id)
  folder = tree.folders[folder_id]
  cameras = folder.get_objects("camera")
  end note

  @enduml
@startuml FolderSystemSimple

  title Система папок в Ivideon

  entity "folders" as folders_db {
    * _id : ObjectId
    --
    * owner_id : string
    * name : string
    * parents : array
    * objects : array
    * root : boolean
  }

  entity "permission_grants" as grants_db {
    * _id : ObjectId
    --
    * object_id : string
    * object_type : string
    * grantee_id : string
    * permissions : array
  }

  entity "servers" as servers_db {
    * _id : ObjectId
    --
    * owner_id : string
    * cameras : object
  }

  entity "Folder" as folder_class {
    + get_objects(type)
    + add_object(obj)
    + remove_object(obj)
    + has_permissions(perm)
  }

  entity "FolderTree" as tree_class {
    + folders : dict
    + find_folders()
    + reload()
  }

  entity "Camera" as camera_node {
    + id : "server:index"
    + object_type : "camera"
  }

  folders_db ||--o{ folder_class
  grants_db ||--o{ folder_class
  servers_db ||--o{ camera_node

  tree_class --> folder_class : manages
  folder_class --> camera_node : contains

  note right of folders_db
  objects[] format:
  [
    {object_type: "camera",
     object_id: "server:0"},
    {object_type: "folder",
     object_id: "subfolder_id"}
  ]
  end note

  note bottom of tree_class
  Usage:
  tree = FolderTree(user_id)
  folder = tree.folders[folder_id]
  cameras = folder.get_objects("camera")
  end note

  @enduml
{
    database folders_db as "folders collection"
    database grants_db as "permission_grants"
    database servers_db as "servers collection"
  }

  package "Folder Classes" {
    class Folder {
      +id: ObjectId
      +owner_id: string
      +name: string
      +parents: List[string]
      +objects: List[dict]
      +root: boolean
      --
      +get_objects(type): List[string]
      +add_object(obj)
      +remove_object(obj)
      +has_permissions(perm): boolean
    }

    class FolderTree {
      +owner_id: string
      +folders: Dict[id, Folder]
      +objects: Dict[type, Dict[id, Node]]
      +roots: List[Folder]
      --
      +find_folders(): List[Folder]
      +reload()
    }

    class BaseNode {
      +id: string
      +owner_id: string
      +grantee_id: string
      +grants: Set[PermissionGrant]
      --
      +has_permissions(perm): boolean
      +permissions: Tuple[string]
    }
  }

  package "Permission System" {
    class PermissionGrant {
      +object_id: string
      +object_type: string
      +grantee_id: string
      +permissions: List[string]
      +shared_at: dict
    }
  }

  package "Node Types" {
    class Camera {
      +id: "server:index"
      +object_type: "camera"
    }
  }

  ' Relationships
  Folder --|> BaseNode
  FolderTree --> Folder : manages
  Folder --> PermissionGrant : has grants
  BaseNode --> PermissionGrant : uses

  Folder --> folders_db : stored in
  PermissionGrant --> grants_db : stored in
  Camera --> servers_db : stored in

  ' Composition relationships
  Folder --> Camera : "contains (objects[])"
  Folder --> Folder : "contains subfolders"

  note right of Folder
    objects[] содержит:
    [
      {object_type: "camera",
       object_id: "server:0"},
      {object_type: "folder",
       object_id: "subfolder_id"}
    ]
  end note

  note right of FolderTree
    Главная точка доступа:
    tree = FolderTree(user_id)
    folder = tree.folders[folder_id]
    cameras = folder.get_objects("camera")
  end note

  note left of PermissionGrant
    Права доступа:
    - admin (изменение)
    - read (просмотр)
    - Наследование по иерархии
  end note

  @enduml