Rilascia strumenti avanzati e archivio 0.3.0

Services/ProjectStorageService.cs

@@ -1,5 +1,6 @@
 using System.Text;
 using System.Text.Json;
+using System.IO.Compression;
 
 namespace LMEMappeCatastaliApp.Services;
 
@@ -13,8 +14,9 @@ public sealed class ProjectStorageService
     };
 
     private string ProjectsDirectory => Path.Combine(FileSystem.AppDataDirectory, "Projects");
+    private string HistoryDirectory => Path.Combine(ProjectsDirectory, ".history");
 
-    public async Task<IReadOnlyList<MapProjectSummary>> GetProjectsAsync()
+    public async Task<IReadOnlyList<MapProjectSummary>> GetProjectsAsync(bool includeArchived = true)
     {
         await _gate.WaitAsync();
         try
@@ -22,6 +24,7 @@ public sealed class ProjectStorageService
             var files = await ReadProjectFilesAsync();
             return files
                 .Select(item => item.Document.ToSummary())
+                .Where(item => includeArchived || !item.IsArchived)
                 .OrderByDescending(item => item.UpdatedAt)
                 .ThenBy(item => item.Name, StringComparer.CurrentCultureIgnoreCase)
                 .ToArray();
@@ -56,14 +59,23 @@ public sealed class ProjectStorageService
 
             var now = DateTimeOffset.UtcNow;
             var id = existing?.Document.Id ?? Guid.NewGuid().ToString("N");
+            if (existing is not null)
+            {
+                Directory.CreateDirectory(HistoryDirectory);
+                var revisionName = $"{id}--{existing.Document.UpdatedAt:yyyyMMddHHmmssfff}{ProjectExtension}";
+                File.Copy(existing.Path, Path.Combine(HistoryDirectory, revisionName), true);
+                PruneHistory(id, 15);
+            }
             var document = new MapProjectDocument
             {
-                SchemaVersion = 1,
+                SchemaVersion = 2,
                 Id = id,
                 Name = normalizedName,
                 CreatedAt = existing?.Document.CreatedAt ?? now,
                 UpdatedAt = now,
                 IncludesCadastralParcels = includesCadastralParcels,
+                Folder = existing?.Document.Folder ?? string.Empty,
+                IsArchived = existing?.Document.IsArchived ?? false,
                 Map = snapshotDocument.RootElement.Clone()
             };
 
@@ -93,6 +105,178 @@ public sealed class ProjectStorageService
         }
     }
 
+    public async Task<MapProjectSummary> DuplicateAsync(string projectId)
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            var files = await ReadProjectFilesAsync();
+            var source = files.FirstOrDefault(item => item.Document.Id == projectId)
+                ?? throw new FileNotFoundException("Il progetto selezionato non esiste piu'.");
+            var usedNames = files.Select(item => item.Document.Name).ToHashSet(StringComparer.CurrentCultureIgnoreCase);
+            var baseName = $"{source.Document.Name} - copia";
+            var name = baseName;
+            for (var index = 2; usedNames.Contains(name); index++)
+            {
+                name = $"{baseName} {index}";
+            }
+            var now = DateTimeOffset.UtcNow;
+            var id = Guid.NewGuid().ToString("N");
+            var copy = new MapProjectDocument
+            {
+                SchemaVersion = 2,
+                Id = id,
+                Name = name,
+                CreatedAt = now,
+                UpdatedAt = now,
+                IncludesCadastralParcels = source.Document.IncludesCadastralParcels,
+                Folder = source.Document.Folder,
+                Map = source.Document.Map.Clone()
+            };
+            var path = Path.Combine(ProjectsDirectory, BuildFileName(name, id));
+            await File.WriteAllTextAsync(path, JsonSerializer.Serialize(copy, _jsonOptions), new UTF8Encoding(false));
+            return copy.ToSummary();
+        }
+        finally { _gate.Release(); }
+    }
+
+    public async Task UpdateOrganizationAsync(string projectId, string? folder = null, bool? isArchived = null)
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            var project = (await ReadProjectFilesAsync()).FirstOrDefault(item => item.Document.Id == projectId)
+                ?? throw new FileNotFoundException("Il progetto selezionato non esiste piu'.");
+            project.Document.Folder = NormalizeFolder(folder ?? project.Document.Folder);
+            project.Document.IsArchived = isArchived ?? project.Document.IsArchived;
+            project.Document.UpdatedAt = DateTimeOffset.UtcNow;
+            await File.WriteAllTextAsync(project.Path, JsonSerializer.Serialize(project.Document, _jsonOptions), new UTF8Encoding(false));
+        }
+        finally { _gate.Release(); }
+    }
+
+    public async Task<IReadOnlyList<MapProjectVersion>> GetVersionsAsync(string projectId)
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            Directory.CreateDirectory(HistoryDirectory);
+            var versions = new List<MapProjectVersion>();
+            foreach (var path in Directory.EnumerateFiles(HistoryDirectory, $"{projectId}--*{ProjectExtension}"))
+            {
+                try
+                {
+                    await using var stream = File.OpenRead(path);
+                    var document = await JsonSerializer.DeserializeAsync<MapProjectDocument>(stream, _jsonOptions);
+                    if (document is not null)
+                    {
+                        versions.Add(new(Path.GetFileName(path), document.UpdatedAt));
+                    }
+                }
+                catch (JsonException) { }
+                catch (IOException) { }
+            }
+            return versions.OrderByDescending(item => item.UpdatedAt).ToArray();
+        }
+        finally { _gate.Release(); }
+    }
+
+    public async Task<string> LoadVersionAsync(string projectId, string versionId)
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            if (!versionId.StartsWith($"{projectId}--", StringComparison.Ordinal)
+                || Path.GetFileName(versionId) != versionId)
+            {
+                throw new InvalidDataException("Revisione non valida.");
+            }
+            var path = Path.Combine(HistoryDirectory, versionId);
+            await using var stream = File.OpenRead(path);
+            var document = await JsonSerializer.DeserializeAsync<MapProjectDocument>(stream, _jsonOptions)
+                ?? throw new InvalidDataException("Revisione non leggibile.");
+            return document.Map.GetRawText();
+        }
+        finally { _gate.Release(); }
+    }
+
+    public async Task<string> CreateBackupAsync()
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            Directory.CreateDirectory(ProjectsDirectory);
+            var directory = Path.Combine(FileSystem.CacheDirectory, "Backups");
+            Directory.CreateDirectory(directory);
+            var path = Path.Combine(directory, $"LMEMappeCatastali-backup-{DateTime.Now:yyyyMMdd-HHmmss}.lmebackup.zip");
+            if (File.Exists(path)) File.Delete(path);
+            ZipFile.CreateFromDirectory(ProjectsDirectory, path, CompressionLevel.Optimal, false);
+            return path;
+        }
+        finally { _gate.Release(); }
+    }
+
+    public async Task<int> RestoreBackupAsync(string backupPath)
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            Directory.CreateDirectory(ProjectsDirectory);
+            using var archive = ZipFile.OpenRead(backupPath);
+            var restored = 0;
+            foreach (var entry in archive.Entries.Where(item => item.FullName.EndsWith(ProjectExtension, StringComparison.OrdinalIgnoreCase)))
+            {
+                var fileName = Path.GetFileName(entry.FullName);
+                if (string.IsNullOrWhiteSpace(fileName)) continue;
+                var targetDirectory = entry.FullName.Contains(".history/", StringComparison.OrdinalIgnoreCase)
+                    || entry.FullName.Contains(".history\\", StringComparison.OrdinalIgnoreCase)
+                    ? HistoryDirectory : ProjectsDirectory;
+                Directory.CreateDirectory(targetDirectory);
+                entry.ExtractToFile(Path.Combine(targetDirectory, fileName), true);
+                if (targetDirectory == ProjectsDirectory) restored++;
+            }
+            return restored;
+        }
+        finally { _gate.Release(); }
+    }
+
+    public async Task<string> CreateProjectPackageAsync(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'.");
+            var directory = Path.Combine(FileSystem.CacheDirectory, "Projects");
+            Directory.CreateDirectory(directory);
+            var path = Path.Combine(directory, Path.GetFileName(project.Path));
+            File.Copy(project.Path, path, true);
+            return path;
+        }
+        finally { _gate.Release(); }
+    }
+
+    public async Task<MapProjectSummary> ImportProjectAsync(string path)
+    {
+        await _gate.WaitAsync();
+        try
+        {
+            await using var stream = File.OpenRead(path);
+            var source = await JsonSerializer.DeserializeAsync<MapProjectDocument>(stream, _jsonOptions)
+                ?? throw new InvalidDataException("Progetto non leggibile.");
+            if (source.Map.ValueKind != JsonValueKind.Object) throw new InvalidDataException("Mappa del progetto non valida.");
+            source.Id = Guid.NewGuid().ToString("N");
+            source.Name = NormalizeName(source.Name);
+            source.CreatedAt = source.UpdatedAt = DateTimeOffset.UtcNow;
+            source.IsArchived = false;
+            Directory.CreateDirectory(ProjectsDirectory);
+            var target = Path.Combine(ProjectsDirectory, BuildFileName(source.Name, source.Id));
+            await File.WriteAllTextAsync(target, JsonSerializer.Serialize(source, _jsonOptions), new UTF8Encoding(false));
+            return source.ToSummary();
+        }
+        finally { _gate.Release(); }
+    }
+
     public async Task<string> LoadAsync(string projectId)
     {
         await _gate.WaitAsync();
@@ -118,6 +302,13 @@ public sealed class ProjectStorageService
                 .FirstOrDefault(item => item.Document.Id == projectId)
                 ?? throw new FileNotFoundException("Il progetto selezionato non esiste piu'.");
             File.Delete(project.Path);
+            if (Directory.Exists(HistoryDirectory))
+            {
+                foreach (var path in Directory.EnumerateFiles(HistoryDirectory, $"{projectId}--*{ProjectExtension}"))
+                {
+                    File.Delete(path);
+                }
+            }
         }
         finally
         {
@@ -179,19 +370,36 @@ public sealed class ProjectStorageService
         return $"{safeName}--{id[..8]}{ProjectExtension}";
     }
 
+    private void PruneHistory(string projectId, int keep)
+    {
+        foreach (var path in Directory.EnumerateFiles(HistoryDirectory, $"{projectId}--*{ProjectExtension}")
+                     .OrderByDescending(File.GetLastWriteTimeUtc).Skip(keep))
+        {
+            File.Delete(path);
+        }
+    }
+
+    private static string NormalizeFolder(string value)
+    {
+        var normalized = string.Join(' ', (value ?? string.Empty).Split([' ', '\t', '\r', '\n'], StringSplitOptions.RemoveEmptyEntries));
+        return normalized[..Math.Min(normalized.Length, 60)];
+    }
+
     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 int SchemaVersion { get; set; }
+        public string Id { get; set; } = string.Empty;
+        public string Name { get; set; } = string.Empty;
+        public DateTimeOffset CreatedAt { get; set; }
+        public DateTimeOffset UpdatedAt { get; set; }
+        public bool IncludesCadastralParcels { get; set; }
+        public string Folder { get; set; } = string.Empty;
+        public bool IsArchived { get; set; }
+        public JsonElement Map { get; set; }
 
-        public MapProjectSummary ToSummary() => new(Id, Name, UpdatedAt, IncludesCadastralParcels);
+        public MapProjectSummary ToSummary() => new(Id, Name, UpdatedAt, IncludesCadastralParcels, Folder, IsArchived);
     }
 }
 
@@ -199,4 +407,8 @@ public sealed record MapProjectSummary(
     string Id,
     string Name,
     DateTimeOffset UpdatedAt,
-    bool IncludesCadastralParcels);
+    bool IncludesCadastralParcels,
+    string Folder,
+    bool IsArchived);
+
+public sealed record MapProjectVersion(string Id, DateTimeOffset UpdatedAt);