Migrate from MongoDB to Couchbase Lite for local storage; update related services and configurations

Services/Auth/AuthUser.cs

@@ -1,20 +1,12 @@
-using MongoDB.Bson;
-using MongoDB.Bson.Serialization.Attributes;
-
 namespace WorkTracker.Services.Auth;
 
-public sealed class MongoAuthUser
+public sealed class AuthUser
 {
-    [BsonId]
-    [BsonRepresentation(BsonType.ObjectId)]
     public string Id { get; init; } = string.Empty;
 
-    [BsonElement("email")]
     public string Email { get; init; } = string.Empty;
 
-    [BsonElement("emailNormalized")]
     public string EmailNormalized { get; init; } = string.Empty;
 
-    [BsonElement("passwordHash")]
     public string PasswordHash { get; init; } = string.Empty;
-}
+}

Services/Auth/CouchbaseLiteAuthService.cs

@@ -0,0 +1,102 @@
+using Couchbase.Lite;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.Extensions.Options;
+using WorkTracker.Configuration;
+using WorkTracker.Services.Storage;
+
+namespace WorkTracker.Services.Auth;
+
+public sealed class CouchbaseLiteAuthService : IAuthService
+{
+    private readonly Collection users;
+    private readonly PasswordHasher<AuthUser> passwordHasher = new();
+    private readonly IOptions<SingleUserOptions> options;
+    private readonly ILogger<CouchbaseLiteAuthService> logger;
+
+    public CouchbaseLiteAuthService(
+        CouchbaseLiteDatabaseProvider databaseProvider,
+        IOptions<SingleUserOptions> options,
+        ILogger<CouchbaseLiteAuthService> logger)
+    {
+        users = databaseProvider.Users;
+        this.options = options;
+        this.logger = logger;
+    }
+
+    public Task EnsureSeedUserAsync(CancellationToken cancellationToken)
+    {
+        cancellationToken.ThrowIfCancellationRequested();
+
+        var email = options.Value.Email.Trim();
+        var normalizedEmail = NormalizeEmail(email);
+
+        if (users.GetDocument(normalizedEmail) is not null)
+        {
+            return Task.CompletedTask;
+        }
+
+        var user = new AuthUser
+        {
+            Id = normalizedEmail,
+            Email = email,
+            EmailNormalized = normalizedEmail,
+            PasswordHash = string.Empty
+        };
+
+        var passwordHash = passwordHasher.HashPassword(user, options.Value.Password);
+        var userToCreate = new AuthUser
+        {
+            Id = normalizedEmail,
+            Email = email,
+            EmailNormalized = normalizedEmail,
+            PasswordHash = passwordHash
+        };
+
+        SaveUser(userToCreate);
+        logger.LogInformation("Seeded single user account {Email} in Couchbase Lite", email);
+        return Task.CompletedTask;
+    }
+
+    public Task<AuthUser?> ValidateCredentialsAsync(string email, string password, CancellationToken cancellationToken)
+    {
+        cancellationToken.ThrowIfCancellationRequested();
+
+        var user = GetUser(NormalizeEmail(email));
+        if (user is null)
+        {
+            return Task.FromResult<AuthUser?>(null);
+        }
+
+        var result = passwordHasher.VerifyHashedPassword(user, user.PasswordHash, password);
+        return Task.FromResult(result == PasswordVerificationResult.Failed ? null : user);
+    }
+
+    private AuthUser? GetUser(string normalizedEmail)
+    {
+        var document = users.GetDocument(normalizedEmail);
+        if (document is null)
+        {
+            return null;
+        }
+
+        return new AuthUser
+        {
+            Id = document.Id,
+            Email = document.GetString("email") ?? string.Empty,
+            EmailNormalized = document.GetString("emailNormalized") ?? string.Empty,
+            PasswordHash = document.GetString("passwordHash") ?? string.Empty
+        };
+    }
+
+    private void SaveUser(AuthUser user)
+    {
+        var document = new MutableDocument(user.Id);
+        document.SetString("email", user.Email);
+        document.SetString("emailNormalized", user.EmailNormalized);
+        document.SetString("passwordHash", user.PasswordHash);
+
+        users.Save(document);
+    }
+
+    private static string NormalizeEmail(string email) => email.Trim().ToUpperInvariant();
+}

Services/Auth/IAuthService.cs

@@ -0,0 +1,8 @@
+namespace WorkTracker.Services.Auth;
+
+public interface IAuthService
+{
+    Task EnsureSeedUserAsync(CancellationToken cancellationToken);
+
+    Task<AuthUser?> ValidateCredentialsAsync(string email, string password, CancellationToken cancellationToken);
+}

Services/Auth/IMongoAuthService.cs

@@ -1,10 +0,0 @@
-using System.Threading;
-
-namespace WorkTracker.Services.Auth;
-
-public interface IMongoAuthService
-{
-    Task EnsureSeedUserAsync(CancellationToken cancellationToken);
-
-    Task<MongoAuthUser?> ValidateCredentialsAsync(string email, string password, CancellationToken cancellationToken);
-}

Services/Auth/MongoAuthService.cs

@@ -1,77 +0,0 @@
-using Microsoft.AspNetCore.Identity;
-using Microsoft.Extensions.Options;
-using MongoDB.Driver;
-using WorkTracker.Configuration;
-
-namespace WorkTracker.Services.Auth;
-
-public sealed class MongoAuthService : IMongoAuthService
-{
-    private const string UsersCollectionName = "users";
-
-    private readonly IMongoCollection<MongoAuthUser> users;
-    private readonly PasswordHasher<MongoAuthUser> passwordHasher = new();
-    private readonly IOptions<SingleUserOptions> options;
-    private readonly ILogger<MongoAuthService> logger;
-
-    public MongoAuthService(
-        IMongoDatabase database,
-        IOptions<SingleUserOptions> options,
-        ILogger<MongoAuthService> logger)
-    {
-        users = database.GetCollection<MongoAuthUser>(UsersCollectionName);
-        this.options = options;
-        this.logger = logger;
-    }
-
-    public async Task EnsureSeedUserAsync(CancellationToken cancellationToken)
-    {
-        var email = options.Value.Email.Trim();
-        var normalizedEmail = NormalizeEmail(email);
-
-        var existingUser = await users
-            .Find(x => x.EmailNormalized == normalizedEmail)
-            .FirstOrDefaultAsync(cancellationToken);
-
-        if (existingUser is not null)
-        {
-            return;
-        }
-
-        var user = new MongoAuthUser
-        {
-            Email = email,
-            EmailNormalized = normalizedEmail,
-            PasswordHash = string.Empty
-        };
-
-        var passwordHash = passwordHasher.HashPassword(user, options.Value.Password);
-        var userToCreate = new MongoAuthUser
-        {
-            Email = email,
-            EmailNormalized = normalizedEmail,
-            PasswordHash = passwordHash
-        };
-
-        await users.InsertOneAsync(userToCreate, cancellationToken: cancellationToken);
-        logger.LogInformation("Seeded single user account {Email} in MongoDB", email);
-    }
-
-    public async Task<MongoAuthUser?> ValidateCredentialsAsync(string email, string password, CancellationToken cancellationToken)
-    {
-        var normalizedEmail = NormalizeEmail(email);
-        var user = await users
-            .Find(x => x.EmailNormalized == normalizedEmail)
-            .FirstOrDefaultAsync(cancellationToken);
-
-        if (user is null)
-        {
-            return null;
-        }
-
-        var result = passwordHasher.VerifyHashedPassword(user, user.PasswordHash, password);
-        return result == PasswordVerificationResult.Failed ? null : user;
-    }
-
-    private static string NormalizeEmail(string email) => email.Trim().ToUpperInvariant();
-}

Services/Auth/SingleUserSeedService.cs

@@ -5,12 +5,12 @@ namespace WorkTracker.Services.Auth;
 
 public sealed class SingleUserSeedService : IHostedService
 {
-    private readonly IMongoAuthService authService;
+    private readonly IAuthService authService;
     private readonly IOptions<SingleUserOptions> options;
     private readonly ILogger<SingleUserSeedService> logger;
 
     public SingleUserSeedService(
-        IMongoAuthService authService,
+        IAuthService authService,
         IOptions<SingleUserOptions> options,
         ILogger<SingleUserSeedService> logger)
     {
@@ -32,7 +32,7 @@ public sealed class SingleUserSeedService : IHostedService
         }
         catch (Exception ex)
         {
-            logger.LogError(ex, "Unable to seed MongoDB single user account {Email}", options.Value.Email);
+            logger.LogError(ex, "Unable to seed Couchbase Lite single user account {Email}", options.Value.Email);
         }
     }