// ------------------------------------------------------------------------
// Copyright 2023 The Dapr Authors
// 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 System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using Dapr.Client;

namespace Samples.Client
{
    public class BulkPublishEventExample : Example
    {
        private const string PubsubName = "pubsub";
        private const string TopicName = "deposit";
        
        IReadOnlyList<object> BulkPublishData = new List<object>() {
            new { Id = "17", Amount = 10m },
            new { Id = "18", Amount = 20m },
            new { Id = "19", Amount = 30m }
        };

        public override string DisplayName => "Bulk Publishing Events";

        public override async Task RunAsync(CancellationToken cancellationToken)
        {
            using var client = new DaprClientBuilder().Build();

            var res = await client.BulkPublishEventAsync(PubsubName, TopicName, 
                BulkPublishData);

            if (res != null) {
                if (res.FailedEntries.Count > 0)
                {
                    Console.WriteLine("Some events failed to be published!");
                    
                    foreach (var failedEntry in res.FailedEntries)
                    {
                        Console.WriteLine("EntryId : " + failedEntry.Entry.EntryId + " Error message : " + 
                                          failedEntry.ErrorMessage);
                    }
                }
                else
                {
                    Console.WriteLine("Published multiple deposit events!");    
                }
            } else {
                throw new Exception("null response from dapr");
            }
        }
    }
}