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davide b292590cdc docs: add docs-as-code process and one ADR per feature

docs/docs-as-code.md defines the workflow; docs/adr holds 31 ADRs
(retroactive, reconstructed from code and changelog) with a template and
index. docs/check-docs.sh validates ADR structure, index, cited code
paths, relative links and CLAUDE.md/AGENTS.md sync.

2026-11-03 09:45:51 +01:00

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0020. A single ViewModel split into partial classes by feature

Status: Accepted
Area: UI
Recorded: 2026-11-03 (retroactive: reconstructed from code, comments and changelog)

Context

The UI is one MainView with many overlays sharing wallet, sync and connection state; many small ViewModels would need heavy cross-wiring.

Decision

Use one MainWindowViewModel (CommunityToolkit.Mvvm: [ObservableProperty], [RelayCommand]) that drives Core directly, split into partial classes by feature (.Send, .Receive, .Sync, .Settings, .Wizard, .Contacts, .Update, .WalletInfo, .Donate). New feature logic goes into the matching partial or a new one.

Consequences

Shared state needs no messaging layer.
The class is large; discipline on partial boundaries is what keeps it navigable.
Heavy network work must run off the UI thread (Task.Run).

References

src/App/ViewModels/MainWindowViewModel.cs
src/App/ViewModels/MainWindowViewModel.Send.cs
src/App/ViewModels/MainWindowViewModel.Sync.cs

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