using PostFundManagement.Domain.Abstractions;
using PostFundManagement.Domain.Errors;
using PostFundManagement.Infrastructure.Database;

namespace PostFundManagement.Application.Services.Shared;

public sealed class AuditService(IDbContextFactory<ApplicationDbContext> contextFactory, ITenantContextService tenantContextService) : IService
{
    public async ValueTask<Result> LogActionAsync(string entityId, string entityName, string action, string[] changes, Guid performedBy, CancellationToken cancellationToken = default) =>
        await Result.Try((Func<ValueTask<Result>>)(async () =>
        {
            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);

            context.Add(new Domain.Entities.AuditLog
            {
                EntityId = entityId,
                Action = action,
                Changes = changes,
                EntityName = entityName,
                PerformedBy = performedBy,
                Timestamp = DateTime.UtcNow,
                TenantId = tenantContextService.TenantId > 0 ? tenantContextService.TenantId : null,
            });

            return Result.FailIf(await context.SaveChangesAsync(cancellationToken) <= 0, CreateError.New);
        }));
}