/*******************************************************************************
 *  Copyright 2012-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *  Licensed under the Apache License, Version 2.0 (the "License"). You may not use
 *  this file except in compliance with the License. A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 *  or in the "license" file accompanying this file.
 *  This file 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.
 * *****************************************************************************
 *
 *  AWS Tools for Windows (TM) PowerShell (TM)
 *
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Management.Automation;
using System.Text;
using Amazon.PowerShell.Common;
using Amazon.Runtime;
using Amazon.Redshift;
using Amazon.Redshift.Model;

namespace Amazon.PowerShell.Cmdlets.RS
{
    /// <summary>
    /// Creates an Amazon Redshift event notification subscription. This action requires an
    /// ARN (Amazon Resource Name) of an Amazon SNS topic created by either the Amazon Redshift
    /// console, the Amazon SNS console, or the Amazon SNS API. To obtain an ARN with Amazon
    /// SNS, you must create a topic in Amazon SNS and subscribe to the topic. The ARN is
    /// displayed in the SNS console.
    /// 
    ///  
    /// <para>
    /// You can specify the source type, and lists of Amazon Redshift source IDs, event categories,
    /// and event severities. Notifications will be sent for all events you want that match
    /// those criteria. For example, you can specify source type = cluster, source ID = my-cluster-1
    /// and mycluster2, event categories = Availability, Backup, and severity = ERROR. The
    /// subscription will only send notifications for those ERROR events in the Availability
    /// and Backup categories for the specified clusters.
    /// </para><para>
    /// If you specify both the source type and source IDs, such as source type = cluster
    /// and source identifier = my-cluster-1, notifications will be sent for all the cluster
    /// events for my-cluster-1. If you specify a source type but do not specify a source
    /// identifier, you will receive notice of the events for the objects of that type in
    /// your Amazon Web Services account. If you do not specify either the SourceType nor
    /// the SourceIdentifier, you will be notified of events generated from all Amazon Redshift
    /// sources belonging to your Amazon Web Services account. You must specify a source type
    /// if you specify a source ID.
    /// </para>
    /// </summary>
    [Cmdlet("New", "RSEventSubscription", SupportsShouldProcess = true, ConfirmImpact = ConfirmImpact.Medium)]
    [OutputType("Amazon.Redshift.Model.EventSubscription")]
    [AWSCmdlet("Calls the Amazon Redshift CreateEventSubscription API operation.", Operation = new[] {"CreateEventSubscription"}, SelectReturnType = typeof(Amazon.Redshift.Model.CreateEventSubscriptionResponse))]
    [AWSCmdletOutput("Amazon.Redshift.Model.EventSubscription or Amazon.Redshift.Model.CreateEventSubscriptionResponse",
        "This cmdlet returns an Amazon.Redshift.Model.EventSubscription object.",
        "The service call response (type Amazon.Redshift.Model.CreateEventSubscriptionResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack."
    )]
    public partial class NewRSEventSubscriptionCmdlet : AmazonRedshiftClientCmdlet, IExecutor
    {
        
        #region Parameter Enabled
        /// <summary>
        /// <para>
        /// <para>A boolean value; set to <code>true</code> to activate the subscription, and set to
        /// <code>false</code> to create the subscription but not activate it. </para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.Boolean? Enabled { get; set; }
        #endregion
        
        #region Parameter EventCategory
        /// <summary>
        /// <para>
        /// <para>Specifies the Amazon Redshift event categories to be published by the event notification
        /// subscription.</para><para>Values: configuration, management, monitoring, security, pending</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("EventCategories")]
        public System.String[] EventCategory { get; set; }
        #endregion
        
        #region Parameter Severity
        /// <summary>
        /// <para>
        /// <para>Specifies the Amazon Redshift event severity to be published by the event notification
        /// subscription.</para><para>Values: ERROR, INFO</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.String Severity { get; set; }
        #endregion
        
        #region Parameter SnsTopicArn
        /// <summary>
        /// <para>
        /// <para>The Amazon Resource Name (ARN) of the Amazon SNS topic used to transmit the event
        /// notifications. The ARN is created by Amazon SNS when you create a topic and subscribe
        /// to it.</para>
        /// </para>
        /// </summary>
        #if !MODULAR
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        #else
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true, Mandatory = true)]
        [System.Management.Automation.AllowEmptyString]
        [System.Management.Automation.AllowNull]
        #endif
        [Amazon.PowerShell.Common.AWSRequiredParameter]
        public System.String SnsTopicArn { get; set; }
        #endregion
        
        #region Parameter SourceId
        /// <summary>
        /// <para>
        /// <para>A list of one or more identifiers of Amazon Redshift source objects. All of the objects
        /// must be of the same type as was specified in the source type parameter. The event
        /// subscription will return only events generated by the specified objects. If not specified,
        /// then events are returned for all objects within the source type specified.</para><para>Example: my-cluster-1, my-cluster-2</para><para>Example: my-snapshot-20131010</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("SourceIds")]
        public System.String[] SourceId { get; set; }
        #endregion
        
        #region Parameter SourceType
        /// <summary>
        /// <para>
        /// <para>The type of source that will be generating the events. For example, if you want to
        /// be notified of events generated by a cluster, you would set this parameter to cluster.
        /// If this value is not specified, events are returned for all Amazon Redshift objects
        /// in your Amazon Web Services account. You must specify a source type in order to specify
        /// source IDs.</para><para>Valid values: cluster, cluster-parameter-group, cluster-security-group, cluster-snapshot,
        /// and scheduled-action.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.String SourceType { get; set; }
        #endregion
        
        #region Parameter SubscriptionName
        /// <summary>
        /// <para>
        /// <para>The name of the event subscription to be created.</para><para>Constraints:</para><ul><li><para>Cannot be null, empty, or blank.</para></li><li><para>Must contain from 1 to 255 alphanumeric characters or hyphens.</para></li><li><para>First character must be a letter.</para></li><li><para>Cannot end with a hyphen or contain two consecutive hyphens.</para></li></ul>
        /// </para>
        /// </summary>
        #if !MODULAR
        [System.Management.Automation.Parameter(Position = 0, ValueFromPipelineByPropertyName = true, ValueFromPipeline = true)]
        #else
        [System.Management.Automation.Parameter(Position = 0, ValueFromPipelineByPropertyName = true, ValueFromPipeline = true, Mandatory = true)]
        [System.Management.Automation.AllowEmptyString]
        [System.Management.Automation.AllowNull]
        #endif
        [Amazon.PowerShell.Common.AWSRequiredParameter]
        public System.String SubscriptionName { get; set; }
        #endregion
        
        #region Parameter Tag
        /// <summary>
        /// <para>
        /// <para>A list of tag instances.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("Tags")]
        public Amazon.Redshift.Model.Tag[] Tag { get; set; }
        #endregion
        
        #region Parameter Select
        /// <summary>
        /// Use the -Select parameter to control the cmdlet output. The default value is 'EventSubscription'.
        /// Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.Redshift.Model.CreateEventSubscriptionResponse).
        /// Specifying the name of a property of type Amazon.Redshift.Model.CreateEventSubscriptionResponse will result in that property being returned.
        /// Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public string Select { get; set; } = "EventSubscription";
        #endregion
        
        #region Parameter PassThru
        /// <summary>
        /// Changes the cmdlet behavior to return the value passed to the SubscriptionName parameter.
        /// The -PassThru parameter is deprecated, use -Select '^SubscriptionName' instead. This parameter will be removed in a future version.
        /// </summary>
        [System.Obsolete("The -PassThru parameter is deprecated, use -Select '^SubscriptionName' instead. This parameter will be removed in a future version.")]
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public SwitchParameter PassThru { get; set; }
        #endregion
        
        #region Parameter Force
        /// <summary>
        /// This parameter overrides confirmation prompts to force 
        /// the cmdlet to continue its operation. This parameter should always
        /// be used with caution.
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public SwitchParameter Force { get; set; }
        #endregion
        
        protected override void ProcessRecord()
        {
            this._AWSSignerType = "v4";
            base.ProcessRecord();
            
            var resourceIdentifiersText = FormatParameterValuesForConfirmationMsg(nameof(this.SubscriptionName), MyInvocation.BoundParameters);
            if (!ConfirmShouldProceed(this.Force.IsPresent, resourceIdentifiersText, "New-RSEventSubscription (CreateEventSubscription)"))
            {
                return;
            }
            
            var context = new CmdletContext();
            
            // allow for manipulation of parameters prior to loading into context
            PreExecutionContextLoad(context);
            
            #pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
            if (ParameterWasBound(nameof(this.Select)))
            {
                context.Select = CreateSelectDelegate<Amazon.Redshift.Model.CreateEventSubscriptionResponse, NewRSEventSubscriptionCmdlet>(Select) ??
                    throw new System.ArgumentException("Invalid value for -Select parameter.", nameof(this.Select));
                if (this.PassThru.IsPresent)
                {
                    throw new System.ArgumentException("-PassThru cannot be used when -Select is specified.", nameof(this.Select));
                }
            }
            else if (this.PassThru.IsPresent)
            {
                context.Select = (response, cmdlet) => this.SubscriptionName;
            }
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            context.Enabled = this.Enabled;
            if (this.EventCategory != null)
            {
                context.EventCategory = new List<System.String>(this.EventCategory);
            }
            context.Severity = this.Severity;
            context.SnsTopicArn = this.SnsTopicArn;
            #if MODULAR
            if (this.SnsTopicArn == null && ParameterWasBound(nameof(this.SnsTopicArn)))
            {
                WriteWarning("You are passing $null as a value for parameter SnsTopicArn which is marked as required. In case you believe this parameter was incorrectly marked as required, report this by opening an issue at https://github.com/aws/aws-tools-for-powershell/issues.");
            }
            #endif
            if (this.SourceId != null)
            {
                context.SourceId = new List<System.String>(this.SourceId);
            }
            context.SourceType = this.SourceType;
            context.SubscriptionName = this.SubscriptionName;
            #if MODULAR
            if (this.SubscriptionName == null && ParameterWasBound(nameof(this.SubscriptionName)))
            {
                WriteWarning("You are passing $null as a value for parameter SubscriptionName which is marked as required. In case you believe this parameter was incorrectly marked as required, report this by opening an issue at https://github.com/aws/aws-tools-for-powershell/issues.");
            }
            #endif
            if (this.Tag != null)
            {
                context.Tag = new List<Amazon.Redshift.Model.Tag>(this.Tag);
            }
            
            // allow further manipulation of loaded context prior to processing
            PostExecutionContextLoad(context);
            
            var output = Execute(context) as CmdletOutput;
            ProcessOutput(output);
        }
        
        #region IExecutor Members
        
        public object Execute(ExecutorContext context)
        {
            var cmdletContext = context as CmdletContext;
            // create request
            var request = new Amazon.Redshift.Model.CreateEventSubscriptionRequest();
            
            if (cmdletContext.Enabled != null)
            {
                request.Enabled = cmdletContext.Enabled.Value;
            }
            if (cmdletContext.EventCategory != null)
            {
                request.EventCategories = cmdletContext.EventCategory;
            }
            if (cmdletContext.Severity != null)
            {
                request.Severity = cmdletContext.Severity;
            }
            if (cmdletContext.SnsTopicArn != null)
            {
                request.SnsTopicArn = cmdletContext.SnsTopicArn;
            }
            if (cmdletContext.SourceId != null)
            {
                request.SourceIds = cmdletContext.SourceId;
            }
            if (cmdletContext.SourceType != null)
            {
                request.SourceType = cmdletContext.SourceType;
            }
            if (cmdletContext.SubscriptionName != null)
            {
                request.SubscriptionName = cmdletContext.SubscriptionName;
            }
            if (cmdletContext.Tag != null)
            {
                request.Tags = cmdletContext.Tag;
            }
            
            CmdletOutput output;
            
            // issue call
            var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
            try
            {
                var response = CallAWSServiceOperation(client, request);
                object pipelineOutput = null;
                pipelineOutput = cmdletContext.Select(response, this);
                output = new CmdletOutput
                {
                    PipelineOutput = pipelineOutput,
                    ServiceResponse = response
                };
            }
            catch (Exception e)
            {
                output = new CmdletOutput { ErrorResponse = e };
            }
            
            return output;
        }
        
        public ExecutorContext CreateContext()
        {
            return new CmdletContext();
        }
        
        #endregion
        
        #region AWS Service Operation Call
        
        private Amazon.Redshift.Model.CreateEventSubscriptionResponse CallAWSServiceOperation(IAmazonRedshift client, Amazon.Redshift.Model.CreateEventSubscriptionRequest request)
        {
            Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "Amazon Redshift", "CreateEventSubscription");
            try
            {
                #if DESKTOP
                return client.CreateEventSubscription(request);
                #elif CORECLR
                return client.CreateEventSubscriptionAsync(request).GetAwaiter().GetResult();
                #else
                        #error "Unknown build edition"
                #endif
            }
            catch (AmazonServiceException exc)
            {
                var webException = exc.InnerException as System.Net.WebException;
                if (webException != null)
                {
                    throw new Exception(Utils.Common.FormatNameResolutionFailureMessage(client.Config, webException.Message), webException);
                }
                throw;
            }
        }
        
        #endregion
        
        internal partial class CmdletContext : ExecutorContext
        {
            public System.Boolean? Enabled { get; set; }
            public List<System.String> EventCategory { get; set; }
            public System.String Severity { get; set; }
            public System.String SnsTopicArn { get; set; }
            public List<System.String> SourceId { get; set; }
            public System.String SourceType { get; set; }
            public System.String SubscriptionName { get; set; }
            public List<Amazon.Redshift.Model.Tag> Tag { get; set; }
            public System.Func<Amazon.Redshift.Model.CreateEventSubscriptionResponse, NewRSEventSubscriptionCmdlet, object> Select { get; set; } =
                (response, cmdlet) => response.EventSubscription;
        }
        
    }
}