# zeromac/vascular architecture

> Architecture diagram of the GitHub repository zeromac/vascular, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-29). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/zeromac/vascular
- Repository: https://github.com/zeromac/vascular

## Overview

Vascular is a Qt desktop transfer manager with a WebSocket browser bridge. Users manage transfer tasks and settings through the application; browser clients can submit upload/download commands, which enter the task-management and transfer runtime. The graph includes task persistence, resumable-transfer checkpoints, and settings storage. The tree and excerpts support these major components, but do not show the QML files or enough implementation to confirm every dispatcher, worker, and host connection; uncertain wiring is omitted.

Main entry points: [`src/core/TaskService.cpp`](https://github.com/zeromac/vascular/blob/master/src/core/TaskService.cpp) (Task Service), [`src/core/TransferExecutor.cpp`](https://github.com/zeromac/vascular/blob/master/src/core/TransferExecutor.cpp) (Transfer Executor), [`src/app/AppController.cpp`](https://github.com/zeromac/vascular/blob/master/src/app/AppController.cpp) (App Controller), [`src/core/SettingsService.cpp`](https://github.com/zeromac/vascular/blob/master/src/core/SettingsService.cpp) (Settings Service)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_app["Application"]
  node_host["Application Host"]
  node_controller["App Controller<br/>[AppController.cpp]"]
  node_taskmodel["Task Models"]
  node_settingsmodel["Settings Model<br/>[AppSettings.cpp]"]
  node_settingsservice["Settings Service"]
end

subgraph group_bridge["Browser Bridge"]
  node_bridge["WebSocket Bridge"]
  node_dispatcher["Command Dispatcher"]
  node_uploadhandler["Upload Handler"]
  node_downloadhandler["Download Handler"]
end

subgraph group_tasks["Transfer Runtime"]
  node_taskservice["Task Service<br/>[TaskService.cpp]"]
  node_scheduler["Task Scheduler<br/>[TaskScheduler.cpp]"]
  node_executor["Transfer Executor"]
  node_uploadworker["Upload Worker<br/>[UploadWorker.cpp]"]
  node_downloadworker["Download Worker<br/>[DownloadWorker.cpp]"]
  node_coalescer["Progress Coalescer"]
end

subgraph group_storage["Persistence"]
  node_taskrepo["Task Repository<br/>[TaskRepository.cpp]"]
  node_taskdb[("SQLite Task Store<br/>[TaskDatabase.cpp]")]
  node_settingsrepo["Settings Repository"]
end

node_user(("Desktop User"))
node_browser(("Browser Client"))
node_transferendpoint(("Transfer Endpoint"))

node_user -->|"manages tasks"| node_controller
node_host -->|"exposes to UI"| node_controller
node_controller -->|"controls tasks"| node_taskservice
node_controller -->|"updates settings"| node_settingsservice
node_controller -->|"reads bridge status"| node_bridge
node_taskservice -->|"updates task state"| node_taskmodel
node_taskservice -->|"loads and saves"| node_taskrepo
node_taskservice -->|"schedules tasks"| node_scheduler
node_taskservice -->|"controls transfers"| node_executor
node_executor -->|"runs uploads"| node_uploadworker
node_executor -->|"runs downloads"| node_downloadworker
node_executor -->|"transfers data"| node_transferendpoint
node_executor -->|"reports progress"| node_coalescer
node_coalescer -->|"delivers updates"| node_taskservice
node_taskrepo -->|"reads and writes"| node_taskdb
node_settingsservice -->|"loads and saves"| node_settingsrepo
node_settingsservice -->|"maintains settings"| node_settingsmodel
node_browser -->|"sends commands"| node_bridge
node_bridge -->|"dispatches commands"| node_dispatcher
node_dispatcher -->|"routes uploads"| node_uploadhandler
node_dispatcher -->|"routes downloads"| node_downloadhandler
node_uploadhandler -->|"creates upload tasks"| node_taskservice
node_downloadhandler -->|"creates download task"| node_taskservice

click node_host "https://github.com/zeromac/vascular/blob/master/src/app/ApplicationHost.cpp"
click node_controller "https://github.com/zeromac/vascular/blob/master/src/app/AppController.cpp"
click node_taskmodel "https://github.com/zeromac/vascular/blob/master/src/model/TransferTaskModel.cpp"
click node_settingsmodel "https://github.com/zeromac/vascular/blob/master/src/model/AppSettings.cpp"
click node_bridge "https://github.com/zeromac/vascular/blob/master/src/bridge/BrowserBridgeService.cpp"
click node_dispatcher "https://github.com/zeromac/vascular/blob/master/src/bridge/BrowserCommandDispatcher.cpp"
click node_uploadhandler "https://github.com/zeromac/vascular/blob/master/src/bridge/UploadCommandHandler.cpp"
click node_downloadhandler "https://github.com/zeromac/vascular/blob/master/src/bridge/DownloadCommandHandler.cpp"
click node_taskservice "https://github.com/zeromac/vascular/blob/master/src/core/TaskService.cpp"
click node_scheduler "https://github.com/zeromac/vascular/blob/master/src/core/TaskScheduler.cpp"
click node_executor "https://github.com/zeromac/vascular/blob/master/src/core/TransferExecutor.cpp"
click node_uploadworker "https://github.com/zeromac/vascular/blob/master/src/core/UploadWorker.cpp"
click node_downloadworker "https://github.com/zeromac/vascular/blob/master/src/core/DownloadWorker.cpp"
click node_coalescer "https://github.com/zeromac/vascular/blob/master/src/core/TaskUpdateCoalescer.cpp"
click node_settingsservice "https://github.com/zeromac/vascular/blob/master/src/core/SettingsService.cpp"
click node_taskrepo "https://github.com/zeromac/vascular/blob/master/src/repository/TaskRepository.cpp"
click node_taskdb "https://github.com/zeromac/vascular/blob/master/src/repository/TaskDatabase.cpp"
click node_settingsrepo "https://github.com/zeromac/vascular/blob/master/src/repository/SettingsRepository.cpp"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_host,node_controller,node_taskmodel,node_settingsmodel,node_settingsservice,node_user,node_browser toneBlue
class node_bridge,node_dispatcher,node_uploadhandler,node_downloadhandler toneAmber
class node_taskservice,node_scheduler,node_executor,node_uploadworker,node_downloadworker,node_coalescer toneMint
class node_taskrepo,node_taskdb,node_settingsrepo toneRose
class node_transferendpoint toneIndigo
```

## Components

### Application

- [Application Host](https://github.com/zeromac/vascular/blob/master/src/app/ApplicationHost.cpp): `src/app/ApplicationHost.cpp`
- [App Controller](https://github.com/zeromac/vascular/blob/master/src/app/AppController.cpp): `src/app/AppController.cpp`
- [Task Models](https://github.com/zeromac/vascular/blob/master/src/model/TransferTaskModel.cpp): `src/model/TransferTaskModel.cpp`
- [Settings Model](https://github.com/zeromac/vascular/blob/master/src/model/AppSettings.cpp): `src/model/AppSettings.cpp`
- [Settings Service](https://github.com/zeromac/vascular/blob/master/src/core/SettingsService.cpp): `src/core/SettingsService.cpp`

### Browser Bridge

- [WebSocket Bridge](https://github.com/zeromac/vascular/blob/master/src/bridge/BrowserBridgeService.cpp): `src/bridge/BrowserBridgeService.cpp`
- [Command Dispatcher](https://github.com/zeromac/vascular/blob/master/src/bridge/BrowserCommandDispatcher.cpp): `src/bridge/BrowserCommandDispatcher.cpp`
- [Upload Handler](https://github.com/zeromac/vascular/blob/master/src/bridge/UploadCommandHandler.cpp): `src/bridge/UploadCommandHandler.cpp`
- [Download Handler](https://github.com/zeromac/vascular/blob/master/src/bridge/DownloadCommandHandler.cpp): `src/bridge/DownloadCommandHandler.cpp`

### Transfer Runtime

- [Task Service](https://github.com/zeromac/vascular/blob/master/src/core/TaskService.cpp): `src/core/TaskService.cpp`
- [Task Scheduler](https://github.com/zeromac/vascular/blob/master/src/core/TaskScheduler.cpp): `src/core/TaskScheduler.cpp`
- [Transfer Executor](https://github.com/zeromac/vascular/blob/master/src/core/TransferExecutor.cpp): `src/core/TransferExecutor.cpp`
- [Upload Worker](https://github.com/zeromac/vascular/blob/master/src/core/UploadWorker.cpp): `src/core/UploadWorker.cpp`
- [Download Worker](https://github.com/zeromac/vascular/blob/master/src/core/DownloadWorker.cpp): `src/core/DownloadWorker.cpp`
- [Progress Coalescer](https://github.com/zeromac/vascular/blob/master/src/core/TaskUpdateCoalescer.cpp): `src/core/TaskUpdateCoalescer.cpp`

### Persistence

- [Task Repository](https://github.com/zeromac/vascular/blob/master/src/repository/TaskRepository.cpp): `src/repository/TaskRepository.cpp`
- [SQLite Task Store](https://github.com/zeromac/vascular/blob/master/src/repository/TaskDatabase.cpp): `src/repository/TaskDatabase.cpp`
- [Settings Repository](https://github.com/zeromac/vascular/blob/master/src/repository/SettingsRepository.cpp): `src/repository/SettingsRepository.cpp`

### Other components

- **Desktop User**
- **Browser Client**
- **Transfer Endpoint**

## Connections

- Desktop User → App Controller: manages tasks
- Application Host → App Controller: exposes to UI
- App Controller → Task Service: controls tasks
- App Controller → Settings Service: updates settings
- App Controller → WebSocket Bridge: reads bridge status
- Task Service → Task Models: updates task state
- Task Service → Task Repository: loads and saves
- Task Service → Task Scheduler: schedules tasks
- Task Service → Transfer Executor: controls transfers
- Transfer Executor → Upload Worker: runs uploads
- Transfer Executor → Download Worker: runs downloads
- Transfer Executor → Transfer Endpoint: transfers data
- Transfer Executor → Progress Coalescer: reports progress
- Progress Coalescer → Task Service: delivers updates
- Task Repository → SQLite Task Store: reads and writes
- Settings Service → Settings Repository: loads and saves
- Settings Service → Settings Model: maintains settings
- Browser Client → WebSocket Bridge: sends commands
- WebSocket Bridge → Command Dispatcher: dispatches commands
- Command Dispatcher → Upload Handler: routes uploads
- Command Dispatcher → Download Handler: routes downloads
- Upload Handler → Task Service: creates upload tasks
- Download Handler → Task Service: creates download task