Istruzioni copilot

.github/copilot-instructions.md

@@ -1,67 +1,450 @@
 # GitHub Copilot Instructions — Fixiy
 
+## Project Overview
+
+Fixiy is a MAUI Blazor Hybrid application with a shared codebase.
+
+### Solution Structure
+
+* `Fixiy.Shared` contains:
+
+    * Business logic
+    * Razor pages
+    * Shared components
+    * DTOs
+    * Interfaces
+    * Service abstractions
+
+* `Fixiy.Maui` is the MAUI host application.
+
+* `Fixiy.Web` is the ASP.NET Core host application.
+
+The Shared project is the source of truth. Avoid duplicating logic between hosts.
+
+---
+
+## Agent Behaviour
+
+* Before making changes, inspect the existing implementation and follow established patterns.
+* Prefer extending existing functionality over creating new implementations.
+* Make the smallest change necessary to satisfy the requirement.
+* Never rewrite large portions of working code unless explicitly requested.
+* Search for existing services, DTOs, components, pages and interfaces before creating new ones.
+* Never create duplicate functionality.
+* Do not rename public classes, interfaces, routes, pages or services without verifying all usages.
+* When requirements are unclear, ask for clarification instead of making assumptions.
+* Preserve the existing architecture.
+* Do not move files between projects unless explicitly requested.
+* Do not generate placeholder implementations containing TODO comments unless specifically requested.
+* Always check whether a change affects both MAUI and Web hosts.
+
+---
+
 ## Language and Style
 
-- **C# 12+** with `<Nullable>enable</Nullable>` and `<ImplicitUsings>enable</ImplicitUsings>` throughout. Never disable these per-file without strong justification.
-- Use **file-scoped namespaces** (`namespace Fixiy.Shared.Services;`) not block-scoped.
-- Prefer `record` types for immutable DTOs.
-- Use `async`/`await` consistently — never `.Result` or `.Wait()` on Tasks.
-- Remove unused `using` directives.
+* Use C# 12+.
+* Always keep:
+
+```xml
+<Nullable>enable</Nullable>
+<ImplicitUsings>enable</ImplicitUsings>
+```
+
+* Never disable nullable reference types without strong justification.
+* Use file-scoped namespaces:
+
+```csharp
+namespace Fixiy.Shared.Services;
+```
+
+* Never use block-scoped namespaces.
+* Prefer `record` types for immutable DTOs.
+* Use expression-bodied members when they improve readability.
+* Use collection expressions when appropriate.
+* Use `async`/`await` consistently.
+* Never use `.Result`, `.Wait()` or `.GetAwaiter().GetResult()`.
+* Remove unused `using` directives.
+* One type per file.
+* File names must match type names.
+* Constants use PascalCase.
+* Do not use Hungarian notation.
+* Omit the `private` modifier on fields.
+
+---
 
 ## Blazor Component Conventions
 
-- All shared components live in `Fixiy.Shared/Components/`. Do not create components in `Fixiy.Maui` or `Fixiy.Web`.
-- Pages go in `Fixiy.Shared/Components/Pages/`, layout in `Layout/`, reusable elements in `SingleElements/`.
-- Scoped CSS goes in a matching `.razor.css` file alongside the component.
-- Inject services via `@inject` in `.razor` files — Blazor components do not support constructor injection.
-- Prefer `[Parameter]` for component inputs; avoid cascading parameters unless genuinely needed across deep trees.
+### Component Locations
+
+Shared components must live inside:
+
+```text
+Fixiy.Shared/Components/
+```
+
+Never create reusable components in:
+
+```text
+Fixiy.Maui
+Fixiy.Web
+```
+
+### Structure
+
+Pages:
+
+```text
+Fixiy.Shared/Components/Pages/
+```
+
+Layouts:
+
+```text
+Fixiy.Shared/Components/Layout/
+```
+
+Reusable elements:
+
+```text
+Fixiy.Shared/Components/SingleElements/
+```
+
+### Styling
+
+* Scoped styles must use matching `.razor.css` files.
+* Keep component-specific styling inside scoped CSS whenever possible.
+
+### Dependency Injection
+
+Use:
+
+```razor
+@inject IService Service
+```
+
+Do not attempt constructor injection in Razor components.
+
+### Parameters
+
+* Prefer `[Parameter]`.
+* Avoid `CascadingParameter` unless truly necessary across multiple levels.
+
+### Code Organization
+
+* Keep `@code` blocks small.
+* Extract complex logic into:
+
+    * `.razor.cs`
+    * Service classes
+    * ViewModels
+
+---
 
 ## Render Mode Rules
 
-- **Always use `InteractiveRenderSettings.*` properties** (`@InteractiveServer`, `@InteractiveAuto`, `@InteractiveWebAssembly`) in shared components — never hard-coded `RenderMode.*` constants.
-- `Fixiy.Maui/MauiProgram.cs` calls `ConfigureBlazorHybridRenderModes()` which sets all three properties to `null`. This is intentional — MAUI Blazor Hybrid runs components statically.
-- Do not work around the null render modes in shared code. Components that need interactivity must tolerate `null` render mode in MAUI context.
+Always use:
+
+```razor
+@InteractiveServer
+@InteractiveAuto
+@InteractiveWebAssembly
+```
+
+through:
+
+```csharp
+InteractiveRenderSettings
+```
+
+Never use:
+
+```csharp
+RenderMode.Server
+RenderMode.Auto
+RenderMode.WebAssembly
+```
+
+directly.
+
+### Important
+
+`Fixiy.Maui/MauiProgram.cs` calls:
+
+```csharp
+ConfigureBlazorHybridRenderModes()
+```
+
+which intentionally sets render modes to `null`.
+
+This is required for MAUI Blazor Hybrid.
+
+Do not:
+
+* Replace null render modes
+* Add workarounds
+* Introduce MAUI-specific render mode hacks
+
+All shared components must tolerate null render modes.
+
+---
+
+## MAUI Blazor Hybrid Rules
+
+* Navigation must remain compatible with iOS swipe-back gestures.
+
+* Prefer native MAUI navigation for secondary pages.
+
+* Use PushAsync for stack navigation.
+
+* Do not introduce JavaScript solutions when a MAUI or Blazor solution exists.
+
+* Shared components must work identically in:
+
+    * MAUI Hybrid
+    * ASP.NET Core Server
+    * WebAssembly
+
+* Never introduce host-specific code into shared components.
+
+---
+
+## MVVM Guidelines
+
+* Business logic must not live inside Razor pages.
+* Complex state management belongs in services or ViewModels.
+* UI components should focus on presentation.
+* Keep ViewModels platform-independent.
+* Avoid code duplication between ViewModels and services.
+
+---
 
 ## IFormFactor Platform Abstraction
 
-- Platform-specific device info must be accessed via `IFormFactor` injection (`Fixiy.Shared/Interfaces/IFormFactor.cs`).
-- **Never call `DeviceInfo`, `Connectivity`, `FileSystem`, or any `Microsoft.Maui.*` API from `Fixiy.Shared`.**
-- When adding new platform capabilities: define interface in `Fixiy.Shared/Interfaces/` → implement in both `Fixiy.Maui/Services/` and `Fixiy.Web/Services/` → register in both DI roots.
+Platform-specific functionality must be accessed through:
+
+```csharp
+IFormFactor
+```
+
+located in:
+
+```text
+Fixiy.Shared/Interfaces/
+```
+
+### Forbidden in Shared
+
+Never directly access:
+
+```csharp
+DeviceInfo
+Connectivity
+FileSystem
+Permissions
+Launcher
+Preferences
+SecureStorage
+Microsoft.Maui.*
+```
+
+from:
+
+```text
+Fixiy.Shared
+```
+
+### Adding New Platform Features
+
+Always follow this process:
+
+1. Create interface in:
+
+```text
+Fixiy.Shared/Interfaces/
+```
+
+2. Implement in:
+
+```text
+Fixiy.Maui/Services/
+```
+
+3. Implement in:
+
+```text
+Fixiy.Web/Services/
+```
+
+4. Register in both DI roots.
+
+Do not skip any step.
+
+---
+
+## Dependency Injection
+
+### Service Registration
+
+Always verify registrations in both hosts.
+
+### Lifetimes
+
+#### MAUI
+
+Use:
+
+```csharp
+Singleton
+```
+
+for platform services.
+
+#### Web
+
+Use:
+
+```csharp
+Scoped
+```
+
+for platform services.
+
+### Interfaces
+
+Interfaces must not assume any specific lifetime.
+
+### Injection
+
+Prefer:
+
+```csharp
+IService
+```
+
+over concrete implementations.
+
+Never inject a concrete type when an abstraction exists.
+
+---
 
 ## IntegryApiClient Registration
 
-- Register with the same `appToken` and `useLoginAzienda: true` in both hosts.
-- MAUI: `.UseIntegry(appToken, useLoginAzienda: true)` on the `MauiAppBuilder` chain.
-- Web: `builder.Services.UseIntegry(appToken, useLoginAzienda: true)` in `Program.cs`.
-- One registration per DI root — do not call it twice.
+Use the same configuration in both hosts.
 
-## Service Registration Lifetimes
+### MAUI
 
-- `Fixiy.Maui` registers platform services as **`Singleton`** — the MAUI app has a single long-lived process.
-- `Fixiy.Web` registers platform services as **`Scoped`** — ASP.NET Core server-side per-request scope.
-- Interfaces must not assume a specific lifetime; implementations may.
+```csharp
+.UseIntegry(appToken, useLoginAzienda: true)
+```
+
+### Web
+
+```csharp
+builder.Services.UseIntegry(
+    appToken,
+    useLoginAzienda: true)
+```
+
+### Rules
+
+* One registration per host.
+* Never register twice.
+* Always keep app tokens aligned.
+* Always keep versions aligned.
+
+---
+
+## Data Access Guidelines
+
+### Entity Framework
+
+* Prefer async APIs.
+* Use `AsNoTracking()` for read-only queries.
+* Avoid loading entire tables into memory.
+* Avoid N+1 query patterns.
+* Prefer projections over loading full entities when possible.
+
+### Performance
+
+* Minimize allocations.
+* Reuse existing services.
+* Avoid unnecessary LINQ enumerations.
+* Prefer server-side filtering.
+
+---
+
+## Error Handling
+
+* Use exceptions only for exceptional situations.
+* Validate inputs early.
+* Log meaningful information.
+* Never swallow exceptions silently.
+* Preserve stack traces.
+
+Do not write:
+
+```csharp
+catch (Exception)
+{
+}
+```
+
+---
 
 ## Maintenance Matrix
 
-| Change | Cascades to |
-|--------|-------------|
-| Add/modify `Fixiy.Shared/Interfaces/*.cs` | Both `Fixiy.Maui/Services/` and `Fixiy.Web/Services/` implementations + DI registration in both hosts |
-| Modify `InteractiveRenderSettings.cs` | `MauiProgram.ConfigureBlazorHybridRenderModes()` — must null every new property |
-| Add a new shared page | `Fixiy.Shared/Components/Pages/` → nav link in `NavMenu.razor` if user-accessible |
-| Add a NuGet package | Target `.csproj` file; check private NuGet feed has it |
-| Change IntegryApiClient version | All three `.csproj` files (`Fixiy.Maui`, `Fixiy.Shared`, `Fixiy.Web`) |
-| Modify `_Imports.razor` | Verify no MAUI-only or web-only namespaces are introduced |
-| Update app token | `Fixiy.Maui/MauiProgram.cs` `AppToken` const + `Fixiy.Web/Program.cs` `appToken` const |
+| Change                                    | Cascades To                                                       |
+| ----------------------------------------- | ----------------------------------------------------------------- |
+| Add/modify `Fixiy.Shared/Interfaces/*.cs` | Update MAUI implementation + Web implementation + DI registration |
+| Modify `InteractiveRenderSettings.cs`     | Update `ConfigureBlazorHybridRenderModes()`                       |
+| Add shared page                           | Add navigation entry if user accessible                           |
+| Add shared service                        | Verify registration in both hosts                                 |
+| Add platform capability                   | Interface + MAUI implementation + Web implementation              |
+| Add NuGet package                         | Verify target project and feed availability                       |
+| Change IntegryApiClient version           | Update all project references                                     |
+| Modify `_Imports.razor`                   | Ensure no host-specific namespaces are introduced                 |
+| Update app token                          | Update both hosts                                                 |
 
-## Test Conventions
+---
 
-- No test projects are currently configured. When adding tests, use **xUnit** with **bUnit** for Razor component testing.
-- Test projects should reference `Fixiy.Shared` and provide mock implementations of `IFormFactor`.
-- Use `Moq` or `NSubstitute` for mocking; do not create manual stubs unless the interface is trivial.
+## Testing Conventions
 
-## Code Style Notes
+Current solution has no dedicated test projects.
 
-- Omit the `private` modifier on fields — it is the default in C#.
-- Constants: `PascalCase` for class-level `const`, no Hungarian notation.
-- One type per file; file name matches type name.
-- Keep `@code` blocks in `.razor` files focused — extract complex logic to a `*.razor.cs` code-behind or a separate service class.
+When adding tests:
+
+### Frameworks
+
+Use:
+
+* xUnit
+* bUnit
+* Moq or NSubstitute
+
+### Requirements
+
+* Test projects should reference `Fixiy.Shared`.
+* Mock `IFormFactor`.
+* Avoid manual stubs unless interfaces are trivial.
+
+---
+
+## Code Review Checklist
+
+Before completing a task verify:
+
+* Existing patterns were followed.
+* No duplicate services were created.
+* No duplicate DTOs were created.
+* No duplicate pages were created.
+* No duplicate components were created.
+* Shared code contains no MAUI-specific APIs.
+* DI registrations are correct.
+* Both hosts were updated when required.
+* Nullable reference types remain enabled.
+* Async APIs are used correctly.
+* Render mode rules were respected.
+* Navigation compatibility remains intact.
+* No unnecessary files were added.
+* No working code was rewritten unnecessarily.
+* The solution architecture remains consistent.