using Microsoft.Extensions.Caching.Distributed;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Tiku.Application.Security;
using Tiku.Application.Tenancy;

namespace Tiku.Infrastructure.Security;

internal sealed class TenantFeatureCacheInvalidator(
    IMemoryCache memoryCache,
    IServiceProvider serviceProvider,
    ITenantRuntimeCacheInvalidator runtimeCacheInvalidator,
    ILogger<TenantFeatureCacheInvalidator> logger) : ITenantFeatureCacheInvalidator
{
    public async Task InvalidateAsync(Guid tenantId, CancellationToken cancellationToken = default)
    {
        RemoveMemory(tenantId);
        await runtimeCacheInvalidator.InvalidateAsync(tenantId, cancellationToken);
        var distributedCache = serviceProvider.GetService<IDistributedCache>();
        if (distributedCache is not null)
        {
            try
            {
                await Task.WhenAll(
                    distributedCache.RemoveAsync(TenantFeatureSnapshotProvider.CacheKey(tenantId, FeatureAccessOperation.Read), cancellationToken),
                    distributedCache.RemoveAsync(TenantFeatureSnapshotProvider.CacheKey(tenantId, FeatureAccessOperation.Write), cancellationToken));
            }
            catch (Exception exception) when (exception is not OperationCanceledException)
            {
                logger.LogWarning(exception, "Tenant feature distributed cache invalidation failed for tenant {TenantId}.", tenantId);
            }
        }
    }

    private void RemoveMemory(Guid tenantId)
    {
        memoryCache.Remove(TenantFeatureSnapshotProvider.CacheKey(tenantId, FeatureAccessOperation.Read));
        memoryCache.Remove(TenantFeatureSnapshotProvider.CacheKey(tenantId, FeatureAccessOperation.Write));
    }
}