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netbird/client/flutter_ui/MIGRATION.md
2026-04-28 03:41:36 +02:00

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# Flutter UI Migration
## Current Boundary
Keep the daemon as-is and replace only the desktop UI process. The Flutter app
should continue to talk to `DaemonService` from `client/proto/daemon.proto`.
The current UI is not a simple settings window. It owns:
- tray/menu-bar state and nested menu actions
- gRPC connection management and event subscription
- connect, disconnect, login, and session-expired flows
- profile switching, deregistration, and profile windows
- network route and exit-node selection
- advanced settings
- debug bundle creation and upload status dialogs
- enforced update notifications and progress windows
- OS sleep/wake notification to the daemon
- single-instance signaling and quick-actions windows
## Phases
1. Scaffold and generated gRPC client
- Done: generated Dart stubs from `client/proto/daemon.proto`.
- Done: app defaults to a gRPC-backed implementation and keeps
`--fake-daemon` for UI-only work.
- Remaining: replace the development user agent suffix with the release
version at build time.
2. Core connection parity
- Done: status polling and `SubscribeEvents` refresh hooks.
- Done: `connect()` runs `Login` → optional SSO browser handoff via
`openExternalUrl``WaitSSOLogin``Up`, with an `awaitingLogin` snapshot
state and a banner that exposes the verification URI and user code.
- Done: `disconnect()` calls `Down`.
- Match current daemon address defaults:
- Windows: `tcp://127.0.0.1:41731`
- Unix-like desktop: `unix:///var/run/netbird.sock`
3. Settings, profiles, and networks
- Done: `GetConfig`/`SetConfig` for the toggleable settings (auto-connect,
allow SSH, quantum resistance, lazy connections, block inbound,
notifications). Read-only fields (management URL, interface, port, MTU)
still need editable forms.
- Done: profile add/switch/remove/logout via `AddProfile`,
`SwitchProfile`, `RemoveProfile`, `Logout`.
- Done: network list with overlap filtering, per-route
`SelectNetworks`/`DeselectNetworks`, and exit-node single-selection.
4. Desktop integration
- Done: tray icon and menu via `tray_manager` (status header, profile,
Connect/Disconnect, Show window, Quit) with status-aware icons that fall
back to template variants on macOS.
- Done: window lifecycle via `window_manager` — close hides instead of
exiting; tray "Quit" actually destroys the window.
- Done: native notifications via `local_notifier`, fed by the daemon's
`SubscribeEvents` stream and gated by the `notifications` setting (with
CRITICAL severity always firing).
- Done: browser launch and clipboard via `Process.run` and
`flutter/services` Clipboard.
- Remaining: file/folder reveal for debug bundles, single-instance
signaling, quick-actions invocation, and sleep/wake forwarding through
`NotifyOSLifecycle`. Settings/Networks submenus on the tray are deferred
until the window-side flows are stable.
- Note: `local_notifier` uses macOS's deprecated `NSUserNotificationCenter`
(warns at build time). Plan to swap to `flutter_local_notifications`
before release.
5. Debug and update flows
- Done: rich debug bundle screen with anonymize, system-info, upload (URL),
and run-with-trace + duration. State machine drives `GetLogLevel`
`SetLogLevel(TRACE)``Down``SetSyncResponsePersistence``Up`
progress over duration → `StopCPUProfile``DebugBundle`, with restore
of original log level and persistence in a finally. Result dialog covers
uploaded, upload-failed, and local-only outcomes with copy/open actions.
- Done: enforced-update modal triggered by daemon `progress_window=show`
metadata. Polls `GetInstallerResult` with a 15-min timeout, blocks close
for 10 s, then surfaces success (auto-close) or failure (error message).
- Remaining: hook a "Check for updates" / "Install now" button into the
About surface that calls `TriggerUpdate` directly.
6. Release pipeline
- Update `.github/workflows/release.yml` UI build steps.
- Update `client/netbird.wxs`, `release_files/install.sh`, and
`release_files/ui-post-install.sh` where they assume the Go UI artifact.
- Update updater restart behavior in `client/internal/updater/installer`.
- Preserve public artifact names until installers and updater logic are
intentionally migrated.
## RPCs Used By The Current UI
The first production implementation should cover:
- `Status`, `Up`, `Down`
- `Login`, `WaitSSOLogin`, `Logout`
- `GetConfig`, `SetConfig`, `GetFeatures`
- `SubscribeEvents`
- `ListNetworks`, `SelectNetworks`, `DeselectNetworks`
- `ListProfiles`, `AddProfile`, `SwitchProfile`, `RemoveProfile`,
`GetActiveProfile`
- `DebugBundle`, `GetLogLevel`, `SetLogLevel`, `SetSyncResponsePersistence`,
`StartCPUProfile`, `StopCPUProfile`
- `TriggerUpdate`, `GetInstallerResult`
- `NotifyOSLifecycle`
## Risk Register
- Desktop tray support differs sharply across Windows, macOS, and Linux.
- Linux app indicators and desktop-session startup need distro-level testing.
- The updater currently restarts `netbird-ui` by process/app name on Windows and
macOS, so artifact naming changes must be coordinated.
- Dart gRPC over Unix domain sockets must be validated against the daemon's
existing `unix://` address behavior.
- Flutter desktop packaging is separate from Go builds, so release CI needs a
new toolchain and cache strategy.