/* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*
*  Licensed to Elasticsearch B.V. under one or more contributor
*  license agreements. See the NOTICE file distributed with
*  this work for additional information regarding copyright
*  ownership. Elasticsearch B.V. licenses this file to you 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.Collections.Generic;
using System.Runtime.Serialization;
using OpenSearch.Net;
using OpenSearch.Net.Utf8Json;

namespace OpenSearch.Client.Specification.TasksApi
{
	[DataContract]
	public class ListTasksResponse : ResponseBase
	{
		public override bool IsValid => base.IsValid && !NodeFailures.HasAny();

		[DataMember(Name = "node_failures")]
		public IReadOnlyCollection<ErrorCause> NodeFailures { get; internal set; } = EmptyReadOnly<ErrorCause>.Collection;
		[DataMember(Name = "nodes")]
		public IReadOnlyDictionary<string, TaskExecutingNode> Nodes { get; internal set; } = EmptyReadOnly<string, TaskExecutingNode>.Dictionary;
	}

	/// <summary>
	/// A node executing a task
	/// </summary>
	public class TaskExecutingNode
	{
		[DataMember(Name = "attributes")]
		[JsonFormatter(typeof(VerbatimInterfaceReadOnlyDictionaryKeysFormatter<string, string>))]
		public IReadOnlyDictionary<string, string> Attributes { get; internal set; } = EmptyReadOnly<string, string>.Dictionary;

		[DataMember(Name = "host")]
		public string Host { get; internal set; }

		[DataMember(Name = "ip")]
		public string Ip { get; internal set; }

		[DataMember(Name = "name")]
		public string Name { get; internal set; }

		[DataMember(Name = "roles")]
		public IEnumerable<string> Roles { get; internal set; }

		[DataMember(Name = "tasks")]
		public IReadOnlyDictionary<TaskId, TaskState> Tasks { get; internal set; } = EmptyReadOnly<TaskId, TaskState>.Dictionary;

		[DataMember(Name = "transport_address")]
		public string TransportAddress { get; internal set; }
	}

	/// <summary>
	/// The state of the task
	/// </summary>
	public class TaskState
	{
		[DataMember(Name = "action")]
		public string Action { get; internal set; }

		[DataMember(Name = "cancellable")]
		public bool Cancellable { get; internal set; }

		[DataMember(Name = "description")]
		public string Description { get; internal set; }

		[DataMember(Name = "headers")]
		public IReadOnlyDictionary<string, string> Headers { get; internal set; } = EmptyReadOnly<string, string>.Dictionary;

		[DataMember(Name = "id")]
		public long Id { get; internal set; }

		[DataMember(Name = "node")]
		public string Node { get; internal set; }

		[DataMember(Name = "parent_task_id")]
		public TaskId ParentTaskId { get; internal set; }

		[DataMember(Name = "running_time_in_nanos")]
		public long RunningTimeInNanoSeconds { get; internal set; }

		[DataMember(Name = "start_time_in_millis")]
		public long StartTimeInMilliseconds { get; internal set; }

		[DataMember(Name = "status")]
		public TaskStatus Status { get; internal set; }

		[DataMember(Name = "type")]
		public string Type { get; internal set; }
	}

	public class TaskStatus
	{
		[DataMember(Name = "batches")]
		public long Batches { get; internal set; }

		[DataMember(Name = "created")]
		public long Created { get; internal set; }

		[DataMember(Name = "deleted")]
		public long Deleted { get; internal set; }

		[DataMember(Name = "noops")]
		public long Noops { get; internal set; }

		[DataMember(Name = "requests_per_second")]
		public float RequestsPerSecond { get; internal set; }

		[DataMember(Name = "retries")]
		public TaskRetries Retries { get; internal set; }

		[DataMember(Name = "throttled_millis")]
		public long ThrottledMilliseconds { get; internal set; }

		[DataMember(Name = "throttled_until_millis")]
		public long ThrottledUntilMilliseconds { get; internal set; }

		[DataMember(Name = "total")]
		public long Total { get; internal set; }

		[DataMember(Name = "updated")]
		public long Updated { get; internal set; }

		[DataMember(Name = "version_conflicts")]
		public long VersionConflicts { get; internal set; }
	}

	public class TaskRetries
	{
		[DataMember(Name = "bulk")]
		public int Bulk { get; internal set; }

		[DataMember(Name = "search")]
		public int Search { get; internal set; }
	}
}