feat: work on implementing UoW pattern

src/SanctionsSearch.Worker/Persistence/EfRepository.cs

@@ -0,0 +1,46 @@
+namespace SanctionsSearch.Worker.Persistence;
+
+class EfRepository<T> : IRepository<T> where T : Entity
+{
+  protected readonly AppDbContext _context;
+  protected readonly ILogger<EfRepository<T>> _logger;
+
+  public EfRepository(AppDbContext context, ILogger<EfRepository<T>> logger)
+  {
+    _context = context;
+    _logger = logger;
+  }
+
+  public async Task<IEnumerable<T>> Find(Expression<Func<T, bool>> predicate)
+  {
+    try
+    {
+      return await _context.Set<T>().Where(predicate).ToListAsync();
+    }
+    catch (Exception ex)
+    {
+      _logger.LogError(ex, "Error finding entities of type {Type}", typeof(T).Name);
+      return [];
+    }
+  }
+
+  public async Task Upsert(T entity)
+  {
+    try
+    {
+      var existing = await _context.Set<T>().FindAsync(entity.Id);
+
+      if (existing is null)
+      {
+        await _context.Set<T>().AddAsync(entity);
+        return;
+      }
+
+      _context.Entry(existing).CurrentValues.SetValues(entity);
+    }
+    catch (Exception ex)
+    {
+      _logger.LogError(ex, "Error upserting entity of type {Type} with {Id}", typeof(T).Name, entity.Id);
+    }
+  }
+}