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 *  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.
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 *  specific language governing permissions and limitations under the License.
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 *
 *  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.Lightsail;
using Amazon.Lightsail.Model;

namespace Amazon.PowerShell.Cmdlets.LS
{
    /// <summary>
    /// Returns information about the configured alarms. Specify an alarm name in your request
    /// to return information about a specific alarm, or specify a monitored resource name
    /// to return information about all alarms for a specific resource.
    /// 
    ///  
    /// <para>
    /// An alarm is used to monitor a single metric for one of your resources. When a metric
    /// condition is met, the alarm can notify you by email, SMS text message, and a banner
    /// displayed on the Amazon Lightsail console. For more information, see <a href="https://lightsail.aws.amazon.com/ls/docs/en_us/articles/amazon-lightsail-alarms">Alarms
    /// in Amazon Lightsail</a>.
    /// </para><br/><br/>This cmdlet automatically pages all available results to the pipeline - parameters related to iteration are only needed if you want to manually control the paginated output. To disable autopagination, use -NoAutoIteration.
    /// </summary>
    [Cmdlet("Get", "LSAlarm")]
    [OutputType("Amazon.Lightsail.Model.Alarm")]
    [AWSCmdlet("Calls the Amazon Lightsail GetAlarms API operation.", Operation = new[] {"GetAlarms"}, SelectReturnType = typeof(Amazon.Lightsail.Model.GetAlarmsResponse))]
    [AWSCmdletOutput("Amazon.Lightsail.Model.Alarm or Amazon.Lightsail.Model.GetAlarmsResponse",
        "This cmdlet returns a collection of Amazon.Lightsail.Model.Alarm objects.",
        "The service call response (type Amazon.Lightsail.Model.GetAlarmsResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack."
    )]
    public partial class GetLSAlarmCmdlet : AmazonLightsailClientCmdlet, IExecutor
    {
        
        #region Parameter AlarmName
        /// <summary>
        /// <para>
        /// <para>The name of the alarm.</para><para>Specify an alarm name to return information about a specific alarm.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(Position = 0, ValueFromPipelineByPropertyName = true, ValueFromPipeline = true)]
        public System.String AlarmName { get; set; }
        #endregion
        
        #region Parameter MonitoredResourceName
        /// <summary>
        /// <para>
        /// <para>The name of the Lightsail resource being monitored by the alarm.</para><para>Specify a monitored resource name to return information about all alarms for a specific
        /// resource.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.String MonitoredResourceName { get; set; }
        #endregion
        
        #region Parameter PageToken
        /// <summary>
        /// <para>
        /// <para>The token to advance to the next page of results from your request.</para><para>To get a page token, perform an initial <code>GetAlarms</code> request. If your results
        /// are paginated, the response will return a next page token that you can specify as
        /// the page token in a subsequent request.</para>
        /// </para>
        /// <para>
        /// <br/><b>Note:</b> This parameter is only used if you are manually controlling output pagination of the service API call.
        /// <br/>In order to manually control output pagination, use '-PageToken $null' for the first call and '-PageToken $AWSHistory.LastServiceResponse.NextPageToken' for subsequent calls.
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("NextToken")]
        public System.String PageToken { get; set; }
        #endregion
        
        #region Parameter Select
        /// <summary>
        /// Use the -Select parameter to control the cmdlet output. The default value is 'Alarms'.
        /// Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.Lightsail.Model.GetAlarmsResponse).
        /// Specifying the name of a property of type Amazon.Lightsail.Model.GetAlarmsResponse 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; } = "Alarms";
        #endregion
        
        #region Parameter PassThru
        /// <summary>
        /// Changes the cmdlet behavior to return the value passed to the AlarmName parameter.
        /// The -PassThru parameter is deprecated, use -Select '^AlarmName' instead. This parameter will be removed in a future version.
        /// </summary>
        [System.Obsolete("The -PassThru parameter is deprecated, use -Select '^AlarmName' instead. This parameter will be removed in a future version.")]
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public SwitchParameter PassThru { get; set; }
        #endregion
        
        #region Parameter NoAutoIteration
        /// <summary>
        /// By default the cmdlet will auto-iterate and retrieve all results to the pipeline by performing multiple
        /// service calls. If set, the cmdlet will retrieve only the next 'page' of results using the value of PageToken
        /// as the start point.
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public SwitchParameter NoAutoIteration { get; set; }
        #endregion
        
        protected override void ProcessRecord()
        {
            this._AWSSignerType = "v4";
            base.ProcessRecord();
            
            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.Lightsail.Model.GetAlarmsResponse, GetLSAlarmCmdlet>(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.AlarmName;
            }
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            context.AlarmName = this.AlarmName;
            context.MonitoredResourceName = this.MonitoredResourceName;
            context.PageToken = this.PageToken;
            
            // 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;
            #pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
            var useParameterSelect = this.Select.StartsWith("^") || this.PassThru.IsPresent;
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            
            // create request and set iteration invariants
            var request = new Amazon.Lightsail.Model.GetAlarmsRequest();
            
            if (cmdletContext.AlarmName != null)
            {
                request.AlarmName = cmdletContext.AlarmName;
            }
            if (cmdletContext.MonitoredResourceName != null)
            {
                request.MonitoredResourceName = cmdletContext.MonitoredResourceName;
            }
            
            // Initialize loop variant and commence piping
            var _nextToken = cmdletContext.PageToken;
            var _userControllingPaging = this.NoAutoIteration.IsPresent || ParameterWasBound(nameof(this.PageToken));
            
            var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
            do
            {
                request.PageToken = _nextToken;
                
                CmdletOutput output;
                
                try
                {
                    
                    var response = CallAWSServiceOperation(client, request);
                    
                    object pipelineOutput = null;
                    if (!useParameterSelect)
                    {
                        pipelineOutput = cmdletContext.Select(response, this);
                    }
                    output = new CmdletOutput
                    {
                        PipelineOutput = pipelineOutput,
                        ServiceResponse = response
                    };
                    
                    _nextToken = response.NextPageToken;
                }
                catch (Exception e)
                {
                    output = new CmdletOutput { ErrorResponse = e };
                }
                
                ProcessOutput(output);
                
            } while (!_userControllingPaging && AutoIterationHelpers.HasValue(_nextToken));
            
            if (useParameterSelect)
            {
                WriteObject(cmdletContext.Select(null, this));
            }
            
            
            return null;
        }
        
        public ExecutorContext CreateContext()
        {
            return new CmdletContext();
        }
        
        #endregion
        
        #region AWS Service Operation Call
        
        private Amazon.Lightsail.Model.GetAlarmsResponse CallAWSServiceOperation(IAmazonLightsail client, Amazon.Lightsail.Model.GetAlarmsRequest request)
        {
            Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "Amazon Lightsail", "GetAlarms");
            try
            {
                #if DESKTOP
                return client.GetAlarms(request);
                #elif CORECLR
                return client.GetAlarmsAsync(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.String AlarmName { get; set; }
            public System.String MonitoredResourceName { get; set; }
            public System.String PageToken { get; set; }
            public System.Func<Amazon.Lightsail.Model.GetAlarmsResponse, GetLSAlarmCmdlet, object> Select { get; set; } =
                (response, cmdlet) => response.Alarms;
        }
        
    }
}