// -*- coding: utf-8 -*-
// MinIO Python Library for Amazon S3 Compatible Cloud Storage,
// (C) 2022 MinIO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

using Minio.Credentials;
using Minio.DataModel.Args;

namespace Minio.Examples.Cases;

public static class AssumeRoleProviderExample
{
    // Establish Authentication by assuming the role of an existing user
    public static async Task Run()
    {
        // endpoint usually point to MinIO server.
        var endpoint = "alias:port";

        // Access key to fetch credentials from STS endpoint.
        var accessKey = "access-key";

        // Secret key to fetch credentials from STS endpoint.
        var secretKey = "secret-key";

        using var minio = new MinioClient()
            .WithEndpoint(endpoint)
            .WithCredentials(accessKey, secretKey)
            .WithSSL()
            .Build();
        try
        {
            var provider = new AssumeRoleProvider(minio);

            var token = await provider.GetCredentialsAsync().ConfigureAwait(false);
            // Console.WriteLine("\nToken = "); utils.Print(token);
            using var minioClient = new MinioClient()
                    .WithEndpoint(endpoint)
                    .WithCredentials(token.AccessKey, token.SecretKey)
                    .WithSessionToken(token.SessionToken)
                    .WithSSL()
                    .Build()
                ;
            var statObjectArgs = new StatObjectArgs()
                .WithBucket("bucket-name")
                .WithObject("object-name");
            var result = await minio.StatObjectAsync(statObjectArgs).ConfigureAwait(false);
            // Console.WriteLine("Object Stat: \n"); utils.Print(result);
            Console.WriteLine("AssumeRoleProvider test PASSed\n");
        }
        catch (Exception e)
        {
            Console.WriteLine($"AssumeRoleProvider test exception: {e}\n");
        }
    }
}