using System.Collections.Concurrent;
using Amazon.IdentityManagement;
using Amazon.Runtime;
using InnovEnergy.Lib.S3Utils.DataTypes;
using InnovEnergy.Lib.Utils;

namespace InnovEnergy.Lib.S3Utils;

public static class Iam
{
    
    // TODO
    
    private static readonly ConcurrentDictionary<S3Region, AmazonIdentityManagementServiceClient> AimClientCache = new();
    
    public static AmazonIdentityManagementServiceClient GetIamClient(this S3Url    url   ) => url.Bucket.GetIamClient();
    public static AmazonIdentityManagementServiceClient GetIamClient(this S3Bucket bucket) => bucket.Region.GetIamClient();
    public static AmazonIdentityManagementServiceClient GetIamClient(this S3Region region)
    {
        return AimClientCache.GetOrAdd(region, CreateIamClient); // Memoize
    }
    
    private static AmazonIdentityManagementServiceClient CreateIamClient(S3Region region) => new
    (
        credentials: new BasicAWSCredentials(region.Credentials.Key, region.Credentials.Secret),
        clientConfig: new() { ServiceURL = StringUtils.EnsureStartsWith(region.Name, "https://") }
    );
    
    
   
    
}