Audit Logging

using Microsoft.EntityFrameworkCore;
using Tenantry.Pro;
using Tenantry.Pro.EfCore;
using Tenantry.Pro.EfCore.Extensions;

// 1. Register Tenantry with audit logging
builder.Services.AddTenantry<string>(tenant =>
{
    tenant.ResolveFromHeader("X-Tenant-Id");
    tenant.UseStore<MyTenantStore>();
    tenant.UsePro(pro =>
    {
        pro.WithLicence(builder.Configuration["Tenantry:Licence"]!);
        pro.AddAuditLogging(opts =>
        {
            // Optionally exclude entity types from audit:
            opts.ExcludeTypes.Add(typeof(OutboxMessage));
        });
    });
});

// 2. Wire the interceptor into your DbContext
builder.Services.AddDbContext<AppDbContext>((sp, options) =>
{
    options.UseSqlServer(builder.Configuration.GetConnectionString("AppDb")!);
    options.UseAuditLogging<string>(sp);   // adds TenantAuditInterceptor<TKey>
});

builder.Services.AddSingleton<IAuditStore, MyDatabaseAuditStore>();

public sealed class MyDatabaseAuditStore(AuditDbContext db) : IAuditStore
{
    public async Task SaveAsync(
        IReadOnlyList<AuditEntry> entries, CancellationToken cancellationToken = default)
    {
        foreach (var entry in entries)
        {
            db.AuditLogs.Add(new AuditLog
            {
                TableName  = entry.TableName,
                Action     = entry.Action.ToString(),
                PrimaryKey = entry.PrimaryKey,
                TenantId   = entry.TenantId,
                Timestamp  = entry.Timestamp,
                OldValues  = JsonSerializer.Serialize(entry.OldValues),
                NewValues  = JsonSerializer.Serialize(entry.NewValues),
            });
        }
        await db.SaveChangesAsync(cancellationToken);
    }
}