fix: migrate to IDbContextFactory and remove direct AppDbContext from DI (#11)

Reviewed-on: #11
Co-authored-by: Marek Jasiński <jasins.marek@gmail.com>
Co-committed-by: Marek Jasiński <jasins.marek@gmail.com>

src/NexusReader.Infrastructure/Services/BillingService.cs

@@ -5,24 +5,24 @@ using Microsoft.Extensions.Options;
 using NexusReader.Application.Abstractions.Services;
 using NexusReader.Domain.Entities;
 using NexusReader.Infrastructure.Configuration;
-using NexusReader.Infrastructure.Persistence;
+using NexusReader.Data.Persistence;
 
 namespace NexusReader.Infrastructure.Services;
 
 public class BillingService : IBillingService
 {
-    private readonly AppDbContext _dbContext;
+    private readonly IDbContextFactory<AppDbContext> _dbContextFactory;
     private readonly UserManager<NexusUser> _userManager;
     private readonly StripeSettings _stripeSettings;
     private readonly ILogger<BillingService> _logger;
 
     public BillingService(
-        AppDbContext dbContext, 
+        IDbContextFactory<AppDbContext> dbContextFactory, 
         UserManager<NexusUser> userManager,
         IOptions<StripeSettings> stripeSettings,
         ILogger<BillingService> logger)
     {
-        _dbContext = dbContext;
+        _dbContextFactory = dbContextFactory;
         _userManager = userManager;
         _stripeSettings = stripeSettings.Value;
         _logger = logger;
@@ -55,7 +55,8 @@ public class BillingService : IBillingService
              _logger.LogWarning("Unrecognized Stripe Product ID: {ProductId} for user {Email}. Falling back to Free tier.", stripeProductId, customerEmail);
         }
 
-        var plan = await _dbContext.SubscriptionPlans.FirstOrDefaultAsync(p => p.PlanName == targetPlanName);
+        using var dbContext = await _dbContextFactory.CreateDbContextAsync();
+        var plan = await dbContext.SubscriptionPlans.FirstOrDefaultAsync(p => p.PlanName == targetPlanName);
         if (plan != null)
         {
             user.SubscriptionPlanId = plan.Id;
@@ -82,7 +83,8 @@ public class BillingService : IBillingService
             return false;
         }
 
-        var freePlan = await _dbContext.SubscriptionPlans.FirstOrDefaultAsync(p => p.PlanName == SubscriptionPlan.FreeName);
+        using var dbContext = await _dbContextFactory.CreateDbContextAsync();
+        var freePlan = await dbContext.SubscriptionPlans.FirstOrDefaultAsync(p => p.PlanName == SubscriptionPlan.FreeName);
         if (freePlan != null)
         {
             user.SubscriptionPlanId = freePlan.Id;

src/NexusReader.Infrastructure/Services/KnowledgeService.cs

@@ -7,7 +7,7 @@ using NexusReader.Application.Abstractions.Services;
 using NexusReader.Application.DTOs.AI;
 using NexusReader.Domain.Entities;
 using NexusReader.Infrastructure.Helpers;
-using NexusReader.Infrastructure.Persistence;
+using NexusReader.Data.Persistence;
 using Polly;
 using Polly.Registry;
 using Microsoft.Extensions.Options;