Add structured multi-project storage

Components/Pages/Home.razor

@@ -5,6 +5,7 @@
 @inject OfficialCadastreService OfficialCadastreService
 @inject LocationSearchService LocationSearchService
 @inject AzureMapsService AzureMapsService
+@inject ProjectStorageService ProjectStorageService
 @implements IAsyncDisposable
 
 <PageTitle>LME Mappe Catastali</PageTitle>
@@ -161,19 +162,42 @@
                             <button class="secondary-command" @onclick="ClearImportedLayers">Pulisci</button>
                         </div>
 
-                        <h2>Progetti e POI</h2>
+                        <h2>Archivio progetti</h2>
                         <label>
-                            Nome
-                            <input @bind="ProjectName" @bind:event="oninput" placeholder="Nome progetto o POI" />
+                            Nome progetto
+                            <input @bind="NewProjectName" @bind:event="oninput" placeholder="Es. Rilievo San Nicola" maxlength="80" />
+                        </label>
+                        <label class="toggle-line project-save-option">
+                            <input type="checkbox" @bind="IncludeCadastralParcels" />
+                            <span>Includi le particelle catastali rosse</span>
+                        </label>
+                        <button class="primary-command" @onclick="SaveProject" disabled="@(ProjectBusy || string.IsNullOrWhiteSpace(NewProjectName))">Salva progetto</button>
+
+                        <label>
+                            Progetto salvato
+                            <select value="@SelectedProjectId" @onchange="SelectProject" disabled="@(Projects.Count == 0 || ProjectBusy)">
+                                <option value="">Seleziona un progetto</option>
+                                @foreach (var project in Projects)
+                                {
+                                    <option value="@project.Id">@project.Name - @project.UpdatedAt.ToLocalTime().ToString("dd/MM/yyyy HH:mm")</option>
+                                }
+                            </select>
+                        </label>
+                        <div class="button-row">
+                            <button @onclick="LoadProject" disabled="@(ProjectBusy || string.IsNullOrWhiteSpace(SelectedProjectId))">Carica</button>
+                            <button class="danger-command" @onclick="DeleteProject" disabled="@(ProjectBusy || string.IsNullOrWhiteSpace(SelectedProjectId))">Elimina</button>
+                        </div>
+                        <div class="project-archive-state">@ProjectArchiveMessage</div>
+
+                        <h2>POI e disegni</h2>
+                        <label>
+                            Nome POI
+                            <input @bind="PoiName" @bind:event="oninput" placeholder="Nome del punto" />
                         </label>
                         <button class="primary-command" @onclick="AddProjectMarker">Aggiungi POI al centro mappa</button>
                         <button class="secondary-command" aria-pressed="@DrawToolsVisible" @onclick="ToggleDrawTools">
                             @(DrawToolsVisible ? "Nascondi strumenti di disegno" : "Mostra strumenti di disegno")
                         </button>
-                        <div class="button-row">
-                            <button @onclick="SaveWorkspace">Salva</button>
-                            <button @onclick="LoadWorkspace">Carica</button>
-                        </div>
                         <button class="danger-command" @onclick="ClearDrawings">Elimina disegni e POI</button>
                     </section>
                 }
@@ -268,7 +292,10 @@
 @code {
     private string ActiveTab { get; set; } = "map";
     private string SearchText { get; set; } = string.Empty;
-    private string ProjectName { get; set; } = string.Empty;
+    private string NewProjectName { get; set; } = string.Empty;
+    private string PoiName { get; set; } = string.Empty;
+    private string SelectedProjectId { get; set; } = string.Empty;
+    private string ProjectArchiveMessage { get; set; } = "Nessun progetto salvato.";
     private string Status { get; set; } = "online";
     private string SelectedBaseLayer { get; set; } = "satellite";
     private string GoogleMapsApiKey { get; set; } = string.Empty;
@@ -284,6 +311,8 @@
     private bool DrawToolsVisible { get; set; }
     private bool TrailEnabled { get; set; }
     private bool LayerPanelOpen { get; set; }
+    private bool IncludeCadastralParcels { get; set; } = true;
+    private bool ProjectBusy { get; set; }
     private CancellationTokenSource? CatalogCancellation { get; set; }
     private CancellationTokenSource? GpsLookupCancellation { get; set; }
     private long LastGpsLookupAt;
@@ -293,6 +322,7 @@
     private IReadOnlyList<MunicipalityOption> Municipalities { get; set; } = [];
     private IReadOnlyList<string> Sheets { get; set; } = [];
     private IReadOnlyList<ParcelOption> Parcels { get; set; } = [];
+    private IReadOnlyList<MapProjectSummary> Projects { get; set; } = [];
 
     private MunicipalityOption? SelectedMunicipality =>
         Municipalities.FirstOrDefault(item => item.Code == SelectedMunicipalityCode);
@@ -354,6 +384,8 @@
         {
             CatalogMessage = $"Catalogo Comuni non disponibile: {error.Message}";
         }
+
+        await RefreshProjectsAsync();
     }
 
     protected override async Task OnAfterRenderAsync(bool firstRender)
@@ -361,6 +393,32 @@
         if (firstRender)
         {
             await JS.InvokeVoidAsync("lmeMap.init");
+            await MigrateLegacyProjectAsync();
+        }
+    }
+
+    private async Task MigrateLegacyProjectAsync()
+    {
+        try
+        {
+            var legacySnapshot = await JS.InvokeAsync<string?>("lmeMap.getLegacyProjectSnapshot");
+            if (string.IsNullOrWhiteSpace(legacySnapshot))
+            {
+                return;
+            }
+
+            var migrated = await ProjectStorageService.SaveAsync(
+                "Progetto precedente",
+                legacySnapshot,
+                false);
+            await JS.InvokeVoidAsync("lmeMap.clearLegacyProjectSnapshot");
+            await RefreshProjectsAsync();
+            SelectedProjectId = migrated.Id;
+            await InvokeAsync(StateHasChanged);
+        }
+        catch
+        {
+            // The legacy value remains available and migration can be retried at the next start.
         }
     }
 
@@ -371,6 +429,10 @@
         {
             LayerPanelOpen = false;
         }
+        if (tab == "projects")
+        {
+            await RefreshProjectsAsync();
+        }
         await Task.Delay(30);
         await JS.InvokeVoidAsync("lmeMap.resize");
     }
@@ -665,7 +727,7 @@
 
     private Task FitImportedLayers() => JS.InvokeVoidAsync("lmeMap.fitImported").AsTask();
     private Task ClearImportedLayers() => JS.InvokeVoidAsync("lmeMap.clearImported").AsTask();
-    private Task AddProjectMarker() => JS.InvokeVoidAsync("lmeMap.addProjectMarker", ProjectName).AsTask();
+    private Task AddProjectMarker() => JS.InvokeVoidAsync("lmeMap.addProjectMarker", PoiName).AsTask();
     private async Task ToggleDrawTools()
     {
         DrawToolsVisible = !DrawToolsVisible;
@@ -678,8 +740,136 @@
     }
 
     private Task ClearDrawings() => JS.InvokeVoidAsync("lmeMap.clearDrawings").AsTask();
-    private Task SaveWorkspace() => JS.InvokeVoidAsync("lmeMap.saveWorkspace").AsTask();
-    private Task LoadWorkspace() => JS.InvokeVoidAsync("lmeMap.loadWorkspace").AsTask();
+
+    private async Task RefreshProjectsAsync()
+    {
+        try
+        {
+            Projects = await ProjectStorageService.GetProjectsAsync();
+            if (Projects.All(project => project.Id != SelectedProjectId))
+            {
+                SelectedProjectId = string.Empty;
+            }
+            ProjectArchiveMessage = Projects.Count == 0
+                ? "Nessun progetto salvato."
+                : $"{Projects.Count} {(Projects.Count == 1 ? "progetto salvato" : "progetti salvati")} nell'archivio interno.";
+        }
+        catch (Exception error)
+        {
+            ProjectArchiveMessage = $"Archivio non disponibile: {error.GetBaseException().Message}";
+        }
+    }
+
+    private Task SelectProject(ChangeEventArgs args)
+    {
+        SelectedProjectId = args.Value?.ToString() ?? string.Empty;
+        return Task.CompletedTask;
+    }
+
+    private async Task SaveProject()
+    {
+        var name = NewProjectName.Trim();
+        if (string.IsNullOrWhiteSpace(name))
+        {
+            await JS.InvokeVoidAsync("lmeMap.showInfo", "Inserisci il nome del progetto.");
+            return;
+        }
+
+        var existing = Projects.FirstOrDefault(project =>
+            string.Equals(project.Name, name, StringComparison.CurrentCultureIgnoreCase));
+        if (existing is not null
+            && !await JS.InvokeAsync<bool>("confirm", $"Il progetto '{existing.Name}' esiste gia. Sovrascriverlo?"))
+        {
+            return;
+        }
+
+        ProjectBusy = true;
+        try
+        {
+            var snapshot = await JS.InvokeAsync<string>("lmeMap.createProjectSnapshot", IncludeCadastralParcels);
+            var saved = await ProjectStorageService.SaveAsync(
+                name,
+                snapshot,
+                IncludeCadastralParcels,
+                existing?.Id);
+            await RefreshProjectsAsync();
+            SelectedProjectId = saved.Id;
+            NewProjectName = saved.Name;
+            await JS.InvokeVoidAsync(
+                "lmeMap.showInfo",
+                IncludeCadastralParcels
+                    ? $"Progetto salvato: {saved.Name}, incluse le particelle rosse."
+                    : $"Progetto salvato: {saved.Name}, senza particelle rosse.");
+        }
+        catch (Exception error)
+        {
+            await JS.InvokeVoidAsync("lmeMap.showInfo", $"Progetto non salvato: {error.GetBaseException().Message}");
+        }
+        finally
+        {
+            ProjectBusy = false;
+        }
+    }
+
+    private async Task LoadProject()
+    {
+        var project = Projects.FirstOrDefault(item => item.Id == SelectedProjectId);
+        if (project is null)
+        {
+            await JS.InvokeVoidAsync("lmeMap.showInfo", "Seleziona il progetto da caricare.");
+            return;
+        }
+
+        ProjectBusy = true;
+        try
+        {
+            var snapshot = await ProjectStorageService.LoadAsync(project.Id);
+            await JS.InvokeVoidAsync("lmeMap.loadProjectSnapshot", snapshot, project.Name);
+            NewProjectName = project.Name;
+            IncludeCadastralParcels = project.IncludesCadastralParcels;
+            ActiveTab = "map";
+            await Task.Delay(30);
+            await JS.InvokeVoidAsync("lmeMap.resize");
+        }
+        catch (Exception error)
+        {
+            await JS.InvokeVoidAsync("lmeMap.showInfo", $"Progetto non caricato: {error.GetBaseException().Message}");
+        }
+        finally
+        {
+            ProjectBusy = false;
+        }
+    }
+
+    private async Task DeleteProject()
+    {
+        var project = Projects.FirstOrDefault(item => item.Id == SelectedProjectId);
+        if (project is null)
+        {
+            return;
+        }
+        if (!await JS.InvokeAsync<bool>("confirm", $"Eliminare definitivamente il progetto '{project.Name}'?"))
+        {
+            return;
+        }
+
+        ProjectBusy = true;
+        try
+        {
+            await ProjectStorageService.DeleteAsync(project.Id);
+            SelectedProjectId = string.Empty;
+            await RefreshProjectsAsync();
+            await JS.InvokeVoidAsync("lmeMap.showInfo", $"Progetto eliminato: {project.Name}.");
+        }
+        catch (Exception error)
+        {
+            await JS.InvokeVoidAsync("lmeMap.showInfo", $"Progetto non eliminato: {error.GetBaseException().Message}");
+        }
+        finally
+        {
+            ProjectBusy = false;
+        }
+    }
     private Task CenterOnGps() => JS.InvokeVoidAsync("lmeMap.centerOnGps").AsTask();
     private async Task ToggleTrail(ChangeEventArgs args)
     {

LMEMappeCatastaliApp.csproj

@@ -28,8 +28,8 @@
         <ApplicationId>com.companyname.lmemappecatastaliapp</ApplicationId>
 
         <!-- Versions -->
-        <ApplicationDisplayVersion>0.2.6</ApplicationDisplayVersion>
-        <ApplicationVersion>10</ApplicationVersion>
+        <ApplicationDisplayVersion>0.2.7</ApplicationDisplayVersion>
+        <ApplicationVersion>11</ApplicationVersion>
 
         <!-- To develop, package, and publish an app to the Microsoft Store, see: https://aka.ms/MauiTemplateUnpackaged -->
         <WindowsPackageType>None</WindowsPackageType>

MauiProgram.cs

@@ -21,6 +21,7 @@ public static class MauiProgram
         builder.Services.AddSingleton<OfficialCadastreService>();
         builder.Services.AddSingleton<LocationSearchService>();
         builder.Services.AddSingleton<AzureMapsService>();
+        builder.Services.AddSingleton<ProjectStorageService>();
 
 #if DEBUG
         builder.Services.AddBlazorWebViewDeveloperTools();

README.md

@@ -12,7 +12,8 @@ App .NET MAUI Blazor Hybrid per Android, iOS, Mac Catalyst e Windows, pensata pe
 - Inquadramento e pulizia dei layer importati.
 - Disegno di marker, linee, poligoni e rettangoli.
 - Toolbar di disegno completa di icone, modifica, eliminazione singola e pulizia di tutti i disegni/POI.
-- POI/progetti salvabili in locale con `localStorage`.
+- Archivio multiprogetto nella cartella privata dell'app, con nome, selezione da elenco, sovrascrittura ed eliminazione.
+- Ogni progetto salva file GIS, POI, disegni, traccia e inquadratura; l'inclusione delle particelle catastali rosse e' opzionale.
 - GPS nativo MAUI ad alta precisione con permessi Android/iOS.
 - Marker posizione, cerchio accuratezza in metri, tracciamento percorso.
 - Controllo se la posizione GPS cade dentro un poligono importato o disegnato.

Services/AzureMapsService.cs

@@ -13,7 +13,7 @@ public sealed class AzureMapsService
 
     public AzureMapsService()
     {
-        _httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("LMEMappeCatastali/0.2.6");
+        _httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("LMEMappeCatastali/0.2.7");
         _httpClient.DefaultRequestHeaders.Accept.ParseAdd("application/json");
     }
 

Services/ProjectStorageService.cs

@@ -0,0 +1,202 @@
+using System.Text;
+using System.Text.Json;
+
+namespace LMEMappeCatastaliApp.Services;
+
+public sealed class ProjectStorageService
+{
+    private const string ProjectExtension = ".lmeproject.json";
+    private readonly SemaphoreSlim _gate = new(1, 1);
+    private readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web)
+    {
+        WriteIndented = true
+    };
+
+    private string ProjectsDirectory => Path.Combine(FileSystem.AppDataDirectory, "Projects");
+
+    public async Task<IReadOnlyList<MapProjectSummary>> GetProjectsAsync()
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            var files = await ReadProjectFilesAsync();
+            return files
+                .Select(item => item.Document.ToSummary())
+                .OrderByDescending(item => item.UpdatedAt)
+                .ThenBy(item => item.Name, StringComparer.CurrentCultureIgnoreCase)
+                .ToArray();
+        }
+        finally
+        {
+            _gate.Release();
+        }
+    }
+
+    public async Task<MapProjectSummary> SaveAsync(
+        string name,
+        string snapshotJson,
+        bool includesCadastralParcels,
+        string? projectId = null)
+    {
+        var normalizedName = NormalizeName(name);
+        using var snapshotDocument = JsonDocument.Parse(snapshotJson);
+        if (snapshotDocument.RootElement.ValueKind != JsonValueKind.Object)
+        {
+            throw new InvalidDataException("I dati della mappa non sono validi.");
+        }
+
+        await _gate.WaitAsync();
+        try
+        {
+            Directory.CreateDirectory(ProjectsDirectory);
+            var files = await ReadProjectFilesAsync();
+            var existing = files.FirstOrDefault(item =>
+                (!string.IsNullOrWhiteSpace(projectId) && item.Document.Id == projectId)
+                || string.Equals(item.Document.Name, normalizedName, StringComparison.CurrentCultureIgnoreCase));
+
+            var now = DateTimeOffset.UtcNow;
+            var id = existing?.Document.Id ?? Guid.NewGuid().ToString("N");
+            var document = new MapProjectDocument
+            {
+                SchemaVersion = 1,
+                Id = id,
+                Name = normalizedName,
+                CreatedAt = existing?.Document.CreatedAt ?? now,
+                UpdatedAt = now,
+                IncludesCadastralParcels = includesCadastralParcels,
+                Map = snapshotDocument.RootElement.Clone()
+            };
+
+            var path = existing?.Path ?? Path.Combine(ProjectsDirectory, BuildFileName(normalizedName, id));
+            var temporaryPath = path + ".tmp";
+            try
+            {
+                await File.WriteAllTextAsync(
+                    temporaryPath,
+                    JsonSerializer.Serialize(document, _jsonOptions),
+                    new UTF8Encoding(false));
+                File.Move(temporaryPath, path, true);
+            }
+            finally
+            {
+                if (File.Exists(temporaryPath))
+                {
+                    File.Delete(temporaryPath);
+                }
+            }
+
+            return document.ToSummary();
+        }
+        finally
+        {
+            _gate.Release();
+        }
+    }
+
+    public async Task<string> LoadAsync(string projectId)
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            var project = (await ReadProjectFilesAsync())
+                .FirstOrDefault(item => item.Document.Id == projectId)
+                ?? throw new FileNotFoundException("Il progetto selezionato non esiste piu'.");
+            return project.Document.Map.GetRawText();
+        }
+        finally
+        {
+            _gate.Release();
+        }
+    }
+
+    public async Task DeleteAsync(string projectId)
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            var project = (await ReadProjectFilesAsync())
+                .FirstOrDefault(item => item.Document.Id == projectId)
+                ?? throw new FileNotFoundException("Il progetto selezionato non esiste piu'.");
+            File.Delete(project.Path);
+        }
+        finally
+        {
+            _gate.Release();
+        }
+    }
+
+    private async Task<IReadOnlyList<ProjectFileEntry>> ReadProjectFilesAsync()
+    {
+        Directory.CreateDirectory(ProjectsDirectory);
+        var projects = new List<ProjectFileEntry>();
+        foreach (var path in Directory.EnumerateFiles(ProjectsDirectory, $"*{ProjectExtension}"))
+        {
+            try
+            {
+                await using var stream = File.OpenRead(path);
+                var document = await JsonSerializer.DeserializeAsync<MapProjectDocument>(stream, _jsonOptions);
+                if (document is not null
+                    && !string.IsNullOrWhiteSpace(document.Id)
+                    && !string.IsNullOrWhiteSpace(document.Name)
+                    && document.Map.ValueKind == JsonValueKind.Object)
+                {
+                    projects.Add(new ProjectFileEntry(path, document));
+                }
+            }
+            catch (JsonException)
+            {
+                // A damaged project is ignored so the remaining archive stays usable.
+            }
+            catch (IOException)
+            {
+            }
+        }
+
+        return projects;
+    }
+
+    private static string NormalizeName(string name)
+    {
+        var normalized = string.Join(' ', (name ?? string.Empty).Split(
+            [' ', '\t', '\r', '\n'],
+            StringSplitOptions.RemoveEmptyEntries));
+        if (string.IsNullOrWhiteSpace(normalized))
+        {
+            throw new ArgumentException("Inserisci il nome del progetto.");
+        }
+
+        return normalized.Length <= 80 ? normalized : normalized[..80];
+    }
+
+    private static string BuildFileName(string name, string id)
+    {
+        var invalid = Path.GetInvalidFileNameChars().ToHashSet();
+        var safeName = new string(name
+            .Select(character => invalid.Contains(character) ? '-' : character)
+            .ToArray())
+            .Trim(' ', '.');
+        safeName = string.IsNullOrWhiteSpace(safeName) ? "Progetto" : safeName;
+        return $"{safeName}--{id[..8]}{ProjectExtension}";
+    }
+
+    private sealed record ProjectFileEntry(string Path, MapProjectDocument Document);
+
+    private sealed class MapProjectDocument
+    {
+        public int SchemaVersion { get; init; }
+        public string Id { get; init; } = string.Empty;
+        public string Name { get; init; } = string.Empty;
+        public DateTimeOffset CreatedAt { get; init; }
+        public DateTimeOffset UpdatedAt { get; init; }
+        public bool IncludesCadastralParcels { get; init; }
+        public JsonElement Map { get; init; }
+
+        public MapProjectSummary ToSummary() => new(Id, Name, UpdatedAt, IncludesCadastralParcels);
+    }
+}
+
+public sealed record MapProjectSummary(
+    string Id,
+    string Name,
+    DateTimeOffset UpdatedAt,
+    bool IncludesCadastralParcels);

wwwroot/css/app.css

@@ -459,6 +459,19 @@ label {
     height: 18px;
 }
 
+.project-save-option {
+    padding: 10px 11px;
+    border: 1px solid var(--line);
+    border-radius: 6px;
+    background: #fff;
+}
+
+.project-archive-state {
+    color: var(--muted);
+    font-size: 11px;
+    line-height: 1.35;
+}
+
 .map-info {
     position: absolute;
     left: 12px;

wwwroot/js/lme-map.js

@@ -43,8 +43,10 @@ window.lmeMap = {
     addProjectMarker,
     setDrawToolsVisible,
     clearDrawings,
-    saveWorkspace,
-    loadWorkspace,
+    createProjectSnapshot,
+    loadProjectSnapshot,
+    getLegacyProjectSnapshot,
+    clearLegacyProjectSnapshot,
     setBaseLayer,
     configureGoogleMaps,
     configureAzureMaps,
@@ -197,7 +199,7 @@ function displayOfficialParcel(xmlText, latitude, longitude, parcel, label, shou
         }
 
         const existingLayer = normalizedParcel
-            ? targetGroup.getLayers().find(item => item.lmeParcelReference === ref)
+            ? findParcelLayerByReference(targetGroup, ref)
             : null;
         if (existingLayer) {
             if (shouldFit) {
@@ -235,6 +237,23 @@ function normalizeParcel(parcel) {
     return String(parcel || "").trim().toUpperCase();
 }
 
+function findParcelLayerByReference(group, reference) {
+    let match = null;
+    group.eachLayer(layer => {
+        if (match) {
+            return;
+        }
+        if (layer.lmeParcelReference === reference) {
+            match = layer;
+            return;
+        }
+        if (typeof layer.eachLayer === "function") {
+            match = findParcelLayerByReference(layer, reference);
+        }
+    });
+    return match;
+}
+
 function resize() {
     if (!lmeState.map) {
         return;
@@ -459,6 +478,10 @@ function addProjectMarker(name) {
     const center = lmeState.map.getCenter();
     const label = (name || "Nuovo POI").trim();
     const marker = L.marker(center, { draggable: true }).addTo(lmeState.drawings);
+    marker.feature = {
+        type: "Feature",
+        properties: { name: label }
+    };
     marker.bindPopup(`<strong>${escapeHtml(label)}</strong><br>${center.lat.toFixed(6)}, ${center.lng.toFixed(6)}`).openPopup();
     setInfo(`POI aggiunto: ${label}`);
 }
@@ -528,33 +551,113 @@ function clearDrawings() {
     setInfo("Disegni e POI eliminati dalla mappa.");
 }
 
-function saveWorkspace() {
-    const data = {
+function createProjectSnapshot(includeCadastralParcels) {
+    const center = lmeState.map.getCenter();
+    return JSON.stringify({
+        schemaVersion: 1,
+        view: {
+            latitude: center.lat,
+            longitude: center.lng,
+            zoom: lmeState.map.getZoom()
+        },
         drawings: lmeState.drawings.toGeoJSON(),
         imported: lmeState.imported.toGeoJSON(),
-        trail: lmeState.gpsTrailPoints
-    };
-    localStorage.setItem("lmeMapWorkspace", JSON.stringify(data));
-    setInfo("Progetti, POI, file e percorso salvati sul dispositivo.");
+        selectedParcels: includeCadastralParcels
+            ? lmeState.selectedParcelsLayer.toGeoJSON()
+            : { type: "FeatureCollection", features: [] },
+        trail: lmeState.gpsTrailPoints.map(point => [
+            Number(point.lat ?? point[0]),
+            Number(point.lng ?? point[1])
+        ])
+    });
 }
 
-function loadWorkspace() {
-    const raw = localStorage.getItem("lmeMapWorkspace");
-    if (!raw) {
-        setInfo("Nessun progetto salvato trovato.");
-        return;
+function getLegacyProjectSnapshot() {
+    return localStorage.getItem("lmeMapWorkspace");
+}
+
+function clearLegacyProjectSnapshot() {
+    localStorage.removeItem("lmeMapWorkspace");
+}
+
+function loadProjectSnapshot(raw, projectName) {
+    try {
+        const data = typeof raw === "string" ? JSON.parse(raw) : raw;
+        if (!data || typeof data !== "object") {
+            throw new Error("contenuto non valido");
         }
 
-    const data = JSON.parse(raw);
         lmeState.drawings.clearLayers();
         lmeState.imported.clearLayers();
-    L.geoJSON(data.drawings, { style: { color: "#f97316", weight: 3, fillOpacity: 0.16 } }).addTo(lmeState.drawings);
-    L.geoJSON(data.imported, { style: { color: "#22c55e", weight: 3, fillOpacity: 0.18 } }).addTo(lmeState.imported);
-    lmeState.gpsTrailPoints = data.trail || [];
+        lmeState.selectedParcelsLayer.clearLayers();
+        lmeState.gpsParcelLayer.clearLayers();
+
+        L.geoJSON(data.drawings || emptyFeatureCollection(), {
+            style: { color: "#f97316", weight: 3, fillOpacity: 0.16 },
+            onEachFeature: bindStoredFeaturePopup
+        }).addTo(lmeState.drawings);
+        L.geoJSON(data.imported || emptyFeatureCollection(), {
+            style: { color: "#22c55e", weight: 3, opacity: 0.95, fillOpacity: 0.18 },
+            pointToLayer: (feature, latlng) => L.circleMarker(latlng, {
+                radius: 7,
+                color: "#22c55e",
+                fillColor: "#ffffff",
+                fillOpacity: 0.9
+            }),
+            onEachFeature: bindStoredFeaturePopup
+        }).addTo(lmeState.imported);
+        L.geoJSON(data.selectedParcels || emptyFeatureCollection(), {
+            style: { color: "#ef4444", weight: 4, opacity: 1, fillColor: "#fbbf24", fillOpacity: 0.26 },
+            onEachFeature: (feature, layer) => {
+                const properties = feature?.properties || {};
+                const reference = properties.NATIONALCADASTRALREFERENCE
+                    || properties.INSPIREID_LOCALID
+                    || properties.LABEL
+                    || "Particella catastale";
+                layer.lmeParcelReference = reference;
+                layer.bindPopup(`<strong>${escapeHtml(reference)}</strong>`);
+            }
+        }).addTo(lmeState.selectedParcelsLayer);
+
+        lmeState.gpsTrailPoints = Array.isArray(data.trail) ? data.trail : [];
         lmeState.gpsTrail.setLatLngs(lmeState.gpsTrailPoints);
-    fitLayer(L.featureGroup([lmeState.drawings, lmeState.imported]));
+
+        const projectLayers = L.featureGroup([
+            lmeState.drawings,
+            lmeState.imported,
+            lmeState.selectedParcelsLayer,
+            lmeState.gpsTrail
+        ]);
+        if (projectLayers.getBounds().isValid()) {
+            fitLayer(projectLayers);
+        } else if (Number.isFinite(data.view?.latitude)
+            && Number.isFinite(data.view?.longitude)
+            && Number.isFinite(data.view?.zoom)) {
+            lmeState.map.setView([data.view.latitude, data.view.longitude], data.view.zoom);
+        }
+
+        const parcelCount = lmeState.selectedParcelsLayer.toGeoJSON().features?.length || 0;
+        setText("parcelState", parcelCount
+            ? `${parcelCount} particelle del progetto`
+            : "Nessuna particella selezionata");
         updateGpsInsideState();
-    setInfo("Progetto caricato.");
+        setInfo(`Progetto caricato: ${projectName || "senza nome"}.`);
+    } catch (error) {
+        setInfo(`Progetto non leggibile: ${error.message}`);
+        throw error;
+    }
+}
+
+function emptyFeatureCollection() {
+    return { type: "FeatureCollection", features: [] };
+}
+
+function bindStoredFeaturePopup(feature, layer) {
+    const properties = feature?.properties || {};
+    const label = properties.name || properties.Name || properties.label || properties.LABEL;
+    if (label) {
+        layer.bindPopup(`<strong>${escapeHtml(label)}</strong>`);
+    }
 }
 
 function setBaseLayer(name) {