private async Task InitializeInMemoryRepositoryFromJson <TEntity>(MagusTtkContext dataContext, IReadOnlyRepository <TEntity> repo, string jsonFilePath, CancellationToken cancellationToken = default)
where TEntity : IHasUniqueCode
{
string jsonString = await fileContentResolver.ReadFileAsTextAsync(jsonFilePath, cancellationToken);
if (string.IsNullOrWhiteSpace(jsonString))
{
throw new ArgumentException($"Json file '{jsonFilePath}' not found.");
}
var entitiesFromJson = JsonDeserializer.DeserializeFromJsonString <TEntity[]>(jsonString);
if ((entitiesFromJson == null) || (entitiesFromJson.Length == 0))
{
throw new ArgumentException($"Could not parse entities of type '{typeof(TEntity)}' from Json file '{jsonFilePath}'.");
}
HashSet <string> codeHashes = new HashSet <string>();
var editableRepo = repo.AsEditableRepository();
foreach (var entity in entitiesFromJson)
{
// hiányzó Code
if (string.IsNullOrWhiteSpace(entity.Code))
{
throw new ArgumentException($"Unique code of '{typeof(TEntity)}' in file '{jsonFilePath}' is empty.");
}
// ha nem tudja hozzáadni, akkor már volt ilyen kóddal
if (!codeHashes.Add(entity.Code))
{
throw new ArgumentException($"Code '{entity.Code}' in file '{jsonFilePath}' is a duplicate.");
}
await editableRepo.Add(entity, cancellationToken);
}
}