// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using AWS.Deploy.Common.Data;
using AWS.Deploy.Orchestration.Data;

namespace AWS.Deploy.Orchestration.DisplayedResources
{
    public class S3BucketResource : IDisplayedResourceCommand
    {
        private readonly IAWSResourceQueryer _awsResourceQueryer;

        public S3BucketResource(IAWSResourceQueryer awsResourceQueryer)
        {
            _awsResourceQueryer = awsResourceQueryer;
        }

        public async Task<Dictionary<string, string>> Execute(string resourceId)
        {
            var metadata = new Dictionary<string, string> { { "Bucket Name", resourceId } };

            var webSiteConfiguration = await _awsResourceQueryer.GetS3BucketWebSiteConfiguration(resourceId);
            // Only add an endpoint if the S3 bucket has been configured to have a website configuration.
            if(webSiteConfiguration != null && !string.IsNullOrEmpty(webSiteConfiguration.IndexDocumentSuffix))
            {
                string region = await _awsResourceQueryer.GetS3BucketLocation(resourceId);
                string regionSeparator = ".";
                if (string.Equals("us-east-1", region) ||
                    string.Equals("us-west-1", region) ||
                    string.Equals("us-west-2", region) ||
                    string.Equals("ap-southeast-1", region) ||
                    string.Equals("ap-southeast-2", region) ||
                    string.Equals("ap-northeast-1", region) ||
                    string.Equals("eu-west-1", region) ||
                    string.Equals("sa-east-1", region))
                {
                    regionSeparator = "-";
                }

                var endpoint = $"http://{resourceId}.s3-website{regionSeparator}{region}.amazonaws.com/";
                metadata["Endpoint"] = endpoint;
            }

            return metadata;
        }
    }
}