// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using Microsoft.AspNetCore.DataProtection;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.WindowsAzure.Storage;
using LogLevel = Microsoft.Extensions.Logging.LogLevel;

namespace AzureBlob
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var storageAccount = CloudStorageAccount.DevelopmentStorageAccount;
            var client = storageAccount.CreateCloudBlobClient();
            var container = client.GetContainerReference("key-container");

            // The container must exist before calling the DataProtection APIs.
            // The specific file within the container does not have to exist,
            // as it will be created on-demand.

            container.CreateIfNotExistsAsync().GetAwaiter().GetResult();

            // Configure
            using (var services = new ServiceCollection()
                .AddLogging(o => o.AddConsole().SetMinimumLevel(LogLevel.Debug))
                .AddDataProtection()
                .PersistKeysToAzureBlobStorage(container, "keys.xml")
                .Services
                .BuildServiceProvider())
            {
                // Run a sample payload

                var protector = services.GetDataProtector("sample-purpose");
                var protectedData = protector.Protect("Hello world!");
                Console.WriteLine(protectedData);
            }
        }
    }
}