/*******************************************************************************
 *  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.EC2;
using Amazon.EC2.Model;

namespace Amazon.PowerShell.Cmdlets.EC2
{
    /// <summary>
    /// Describes the Spot price history. For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-spot-instances-history.html">Spot
    /// Instance pricing history</a> in the <i>Amazon EC2 User Guide for Linux Instances</i>.
    /// 
    ///  
    /// <para>
    /// When you specify a start and end time, the operation returns the prices of the instance
    /// types within that time range. It also returns the last price change before the start
    /// time, which is the effective price as of the start time.
    /// </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", "EC2SpotPriceHistory")]
    [OutputType("Amazon.EC2.Model.SpotPrice")]
    [AWSCmdlet("Calls the Amazon Elastic Compute Cloud (EC2) DescribeSpotPriceHistory API operation.", Operation = new[] {"DescribeSpotPriceHistory"}, SelectReturnType = typeof(Amazon.EC2.Model.DescribeSpotPriceHistoryResponse))]
    [AWSCmdletOutput("Amazon.EC2.Model.SpotPrice or Amazon.EC2.Model.DescribeSpotPriceHistoryResponse",
        "This cmdlet returns a collection of Amazon.EC2.Model.SpotPrice objects.",
        "The service call response (type Amazon.EC2.Model.DescribeSpotPriceHistoryResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack."
    )]
    public partial class GetEC2SpotPriceHistoryCmdlet : AmazonEC2ClientCmdlet, IExecutor
    {
        
        #region Parameter AvailabilityZone
        /// <summary>
        /// <para>
        /// <para>Filters the results by the specified Availability Zone.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.String AvailabilityZone { get; set; }
        #endregion
        
        #region Parameter UtcEndTime
        /// <summary>
        /// <para>
        /// <para>The date and time, up to the current date, from which to stop retrieving the price
        /// history data, in UTC format (for example, <i>YYYY</i>-<i>MM</i>-<i>DD</i>T<i>HH</i>:<i>MM</i>:<i>SS</i>Z).</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.DateTime? UtcEndTime { get; set; }
        #endregion
        
        #region Parameter Filter
        /// <summary>
        /// <para>
        /// <para>The filters.</para><ul><li><para><code>availability-zone</code> - The Availability Zone for which prices should be
        /// returned.</para></li><li><para><code>instance-type</code> - The type of instance (for example, <code>m3.medium</code>).</para></li><li><para><code>product-description</code> - The product description for the Spot price (<code>Linux/UNIX</code>
        /// | <code>Red Hat Enterprise Linux</code> | <code>SUSE Linux</code> | <code>Windows</code>
        /// | <code>Linux/UNIX (Amazon VPC)</code> | <code>Red Hat Enterprise Linux (Amazon VPC)</code>
        /// | <code>SUSE Linux (Amazon VPC)</code> | <code>Windows (Amazon VPC)</code>).</para></li><li><para><code>spot-price</code> - The Spot price. The value must match exactly (or use wildcards;
        /// greater than or less than comparison is not supported).</para></li><li><para><code>timestamp</code> - The time stamp of the Spot price history, in UTC format
        /// (for example, <i>YYYY</i>-<i>MM</i>-<i>DD</i>T<i>HH</i>:<i>MM</i>:<i>SS</i>Z). You
        /// can use wildcards (* and ?). Greater than or less than comparison is not supported.</para></li></ul>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("Filters")]
        public Amazon.EC2.Model.Filter[] Filter { get; set; }
        #endregion
        
        #region Parameter InstanceType
        /// <summary>
        /// <para>
        /// <para>Filters the results by the specified instance types.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("InstanceTypes")]
        public System.String[] InstanceType { get; set; }
        #endregion
        
        #region Parameter ProductDescription
        /// <summary>
        /// <para>
        /// <para>Filters the results by the specified basic product descriptions.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("ProductDescriptions")]
        public System.String[] ProductDescription { get; set; }
        #endregion
        
        #region Parameter UtcStartTime
        /// <summary>
        /// <para>
        /// <para>The date and time, up to the past 90 days, from which to start retrieving the price
        /// history data, in UTC format (for example, <i>YYYY</i>-<i>MM</i>-<i>DD</i>T<i>HH</i>:<i>MM</i>:<i>SS</i>Z).</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.DateTime? UtcStartTime { get; set; }
        #endregion
        
        #region Parameter EndTime
        /// <summary>
        /// <para>
        /// <para>This property is deprecated. Setting this property results in non-UTC DateTimes not
        /// being marshalled correctly. Use EndTimeUtc instead. Setting either EndTime or EndTimeUtc
        /// results in both EndTime and EndTimeUtc being assigned, the latest assignment to either
        /// one of the two property is reflected in the value of both. EndTime is provided for
        /// backwards compatibility only and assigning a non-Utc DateTime to it results in the
        /// wrong timestamp being passed to the service.</para><para>The date and time, up to the current date, from which to stop retrieving the price
        /// history data, in UTC format (for example, <i>YYYY</i>-<i>MM</i>-<i>DD</i>T<i>HH</i>:<i>MM</i>:<i>SS</i>Z).</para>
        /// </para>
        /// <para>This parameter is deprecated.</para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [System.ObsoleteAttribute("This parameter is deprecated and may result in the wrong timestamp being passed to the service, use UtcEndTime instead.")]
        public System.DateTime? EndTime { get; set; }
        #endregion
        
        #region Parameter MaxResult
        /// <summary>
        /// <para>
        /// <para>The maximum number of items to return for this request. To get the next page of items,
        /// make another request with the token returned in the output. For more information,
        /// see <a href="https://docs.aws.amazon.com/AWSEC2/latest/APIReference/Query-Requests.html#api-pagination">Pagination</a>.</para>
        /// </para>
        /// <para>
        /// <br/><b>Note:</b> In AWSPowerShell and AWSPowerShell.NetCore this parameter is used to limit the total number of items returned by the cmdlet.
        /// <br/>In AWS.Tools this parameter is simply passed to the service to specify how many items should be returned by each service call.
        /// <br/>Pipe the output of this cmdlet into Select-Object -First to terminate retrieving data pages early and control the number of items returned.
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("MaxItems","MaxResults")]
        public int? MaxResult { get; set; }
        #endregion
        
        #region Parameter NextToken
        /// <summary>
        /// <para>
        /// <para>The token returned from a previous paginated request. Pagination continues from the
        /// end of the items returned by the previous 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 '-NextToken $null' for the first call and '-NextToken $AWSHistory.LastServiceResponse.NextToken' for subsequent calls.
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.String NextToken { get; set; }
        #endregion
        
        #region Parameter StartTime
        /// <summary>
        /// <para>
        /// <para>This property is deprecated. Setting this property results in non-UTC DateTimes not
        /// being marshalled correctly. Use StartTimeUtc instead. Setting either StartTime or
        /// StartTimeUtc results in both StartTime and StartTimeUtc being assigned, the latest
        /// assignment to either one of the two property is reflected in the value of both. StartTime
        /// is provided for backwards compatibility only and assigning a non-Utc DateTime to it
        /// results in the wrong timestamp being passed to the service.</para><para>The date and time, up to the past 90 days, from which to start retrieving the price
        /// history data, in UTC format (for example, <i>YYYY</i>-<i>MM</i>-<i>DD</i>T<i>HH</i>:<i>MM</i>:<i>SS</i>Z).</para>
        /// </para>
        /// <para>This parameter is deprecated.</para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [System.ObsoleteAttribute("This parameter is deprecated and may result in the wrong timestamp being passed to the service, use UtcStartTime instead.")]
        public System.DateTime? StartTime { get; set; }
        #endregion
        
        #region Parameter Select
        /// <summary>
        /// Use the -Select parameter to control the cmdlet output. The default value is 'SpotPriceHistory'.
        /// Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.EC2.Model.DescribeSpotPriceHistoryResponse).
        /// Specifying the name of a property of type Amazon.EC2.Model.DescribeSpotPriceHistoryResponse 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; } = "SpotPriceHistory";
        #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 NextToken
        /// 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);
            
            if (ParameterWasBound(nameof(this.Select)))
            {
                context.Select = CreateSelectDelegate<Amazon.EC2.Model.DescribeSpotPriceHistoryResponse, GetEC2SpotPriceHistoryCmdlet>(Select) ??
                    throw new System.ArgumentException("Invalid value for -Select parameter.", nameof(this.Select));
            }
            context.AvailabilityZone = this.AvailabilityZone;
            context.UtcEndTime = this.UtcEndTime;
            if (this.Filter != null)
            {
                context.Filter = new List<Amazon.EC2.Model.Filter>(this.Filter);
            }
            if (this.InstanceType != null)
            {
                context.InstanceType = new List<System.String>(this.InstanceType);
            }
            context.MaxResult = this.MaxResult;
            #if !MODULAR
            if (ParameterWasBound(nameof(this.MaxResult)) && this.MaxResult.HasValue)
            {
                WriteWarning("AWSPowerShell and AWSPowerShell.NetCore use the MaxResult parameter to limit the total number of items returned by the cmdlet." +
                    " This behavior is obsolete and will be removed in a future version of these modules. Pipe the output of this cmdlet into Select-Object -First to terminate" +
                    " retrieving data pages early and control the number of items returned. AWS.Tools already implements the new behavior of simply passing MaxResult" +
                    " to the service to specify how many items should be returned by each service call.");
            }
            #endif
            context.NextToken = this.NextToken;
            if (this.ProductDescription != null)
            {
                context.ProductDescription = new List<System.String>(this.ProductDescription);
            }
            context.UtcStartTime = this.UtcStartTime;
            #pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
            context.EndTime = this.EndTime;
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            #pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
            context.StartTime = this.StartTime;
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            
            // allow further manipulation of loaded context prior to processing
            PostExecutionContextLoad(context);
            
            var output = Execute(context) as CmdletOutput;
            ProcessOutput(output);
        }
        
        #region IExecutor Members
        
        #if MODULAR
        public object Execute(ExecutorContext context)
        {
            var cmdletContext = context as CmdletContext;
            var useParameterSelect = this.Select.StartsWith("^");
            
            // create request and set iteration invariants
            var request = new Amazon.EC2.Model.DescribeSpotPriceHistoryRequest();
            
            if (cmdletContext.AvailabilityZone != null)
            {
                request.AvailabilityZone = cmdletContext.AvailabilityZone;
            }
            if (cmdletContext.UtcEndTime != null)
            {
                request.EndTimeUtc = cmdletContext.UtcEndTime.Value;
            }
            if (cmdletContext.Filter != null)
            {
                request.Filters = cmdletContext.Filter;
            }
            if (cmdletContext.InstanceType != null)
            {
                request.InstanceTypes = cmdletContext.InstanceType;
            }
            if (cmdletContext.MaxResult != null)
            {
                request.MaxResults = AutoIterationHelpers.ConvertEmitLimitToServiceTypeInt32(cmdletContext.MaxResult.Value);
            }
            if (cmdletContext.ProductDescription != null)
            {
                request.ProductDescriptions = cmdletContext.ProductDescription;
            }
            if (cmdletContext.UtcStartTime != null)
            {
                request.StartTimeUtc = cmdletContext.UtcStartTime.Value;
            }
            #pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
            if (cmdletContext.EndTime != null)
            {
                if (cmdletContext.UtcEndTime != null)
                {
                    throw new System.ArgumentException("Parameters EndTime and UtcEndTime are mutually exclusive.", nameof(this.EndTime));
                }
                request.EndTime = cmdletContext.EndTime.Value;
            }
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            #pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
            if (cmdletContext.StartTime != null)
            {
                if (cmdletContext.UtcStartTime != null)
                {
                    throw new System.ArgumentException("Parameters StartTime and UtcStartTime are mutually exclusive.", nameof(this.StartTime));
                }
                request.StartTime = cmdletContext.StartTime.Value;
            }
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            
            // Initialize loop variant and commence piping
            var _nextToken = cmdletContext.NextToken;
            var _userControllingPaging = this.NoAutoIteration.IsPresent || ParameterWasBound(nameof(this.NextToken));
            
            var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
            do
            {
                request.NextToken = _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.NextToken;
                }
                catch (Exception e)
                {
                    output = new CmdletOutput { ErrorResponse = e };
                }
                
                ProcessOutput(output);
                
            } while (!_userControllingPaging && AutoIterationHelpers.HasValue(_nextToken));
            
            if (useParameterSelect)
            {
                WriteObject(cmdletContext.Select(null, this));
            }
            
            
            return null;
        }
        #else
        public object Execute(ExecutorContext context)
        {
            var cmdletContext = context as CmdletContext;
            var useParameterSelect = this.Select.StartsWith("^");
            
            // create request and set iteration invariants
            var request = new Amazon.EC2.Model.DescribeSpotPriceHistoryRequest();
            if (cmdletContext.AvailabilityZone != null)
            {
                request.AvailabilityZone = cmdletContext.AvailabilityZone;
            }
            if (cmdletContext.UtcEndTime != null)
            {
                request.EndTimeUtc = cmdletContext.UtcEndTime.Value;
            }
            if (cmdletContext.Filter != null)
            {
                request.Filters = cmdletContext.Filter;
            }
            if (cmdletContext.InstanceType != null)
            {
                request.InstanceTypes = cmdletContext.InstanceType;
            }
            if (cmdletContext.ProductDescription != null)
            {
                request.ProductDescriptions = cmdletContext.ProductDescription;
            }
            if (cmdletContext.UtcStartTime != null)
            {
                request.StartTimeUtc = cmdletContext.UtcStartTime.Value;
            }
            #pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
            if (cmdletContext.EndTime != null)
            {
                if (cmdletContext.UtcEndTime != null)
                {
                    throw new System.ArgumentException("Parameters EndTime and UtcEndTime are mutually exclusive.", nameof(this.EndTime));
                }
                request.EndTime = cmdletContext.EndTime.Value;
            }
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            #pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
            if (cmdletContext.StartTime != null)
            {
                if (cmdletContext.UtcStartTime != null)
                {
                    throw new System.ArgumentException("Parameters StartTime and UtcStartTime are mutually exclusive.", nameof(this.StartTime));
                }
                request.StartTime = cmdletContext.StartTime.Value;
            }
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            
            // Initialize loop variants and commence piping
            System.String _nextToken = null;
            int? _emitLimit = null;
            int _retrievedSoFar = 0;
            if (AutoIterationHelpers.HasValue(cmdletContext.NextToken))
            {
                _nextToken = cmdletContext.NextToken;
            }
            if (cmdletContext.MaxResult.HasValue)
            {
                _emitLimit = cmdletContext.MaxResult;
            }
            var _userControllingPaging = this.NoAutoIteration.IsPresent || ParameterWasBound(nameof(this.NextToken));
            
            var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
            do
            {
                request.NextToken = _nextToken;
                if (_emitLimit.HasValue)
                {
                    request.MaxResults = AutoIterationHelpers.ConvertEmitLimitToInt32(_emitLimit.Value);
                }
                
                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
                    };
                    int _receivedThisCall = response.SpotPriceHistory.Count;
                    
                    _nextToken = response.NextToken;
                    _retrievedSoFar += _receivedThisCall;
                    if (_emitLimit.HasValue)
                    {
                        _emitLimit -= _receivedThisCall;
                    }
                }
                catch (Exception e)
                {
                    if (_retrievedSoFar == 0 || !_emitLimit.HasValue)
                    {
                        output = new CmdletOutput { ErrorResponse = e };
                    }
                    else
                    {
                        break;
                    }
                }
                
                ProcessOutput(output);
            } while (!_userControllingPaging && AutoIterationHelpers.HasValue(_nextToken) && (!_emitLimit.HasValue || _emitLimit.Value >= 1));
            
            
            if (useParameterSelect)
            {
                WriteObject(cmdletContext.Select(null, this));
            }
            
            
            return null;
        }
        #endif
        
        public ExecutorContext CreateContext()
        {
            return new CmdletContext();
        }
        
        #endregion
        
        #region AWS Service Operation Call
        
        private Amazon.EC2.Model.DescribeSpotPriceHistoryResponse CallAWSServiceOperation(IAmazonEC2 client, Amazon.EC2.Model.DescribeSpotPriceHistoryRequest request)
        {
            Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "Amazon Elastic Compute Cloud (EC2)", "DescribeSpotPriceHistory");
            try
            {
                #if DESKTOP
                return client.DescribeSpotPriceHistory(request);
                #elif CORECLR
                return client.DescribeSpotPriceHistoryAsync(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 AvailabilityZone { get; set; }
            public System.DateTime? UtcEndTime { get; set; }
            public List<Amazon.EC2.Model.Filter> Filter { get; set; }
            public List<System.String> InstanceType { get; set; }
            public int? MaxResult { get; set; }
            public System.String NextToken { get; set; }
            public List<System.String> ProductDescription { get; set; }
            public System.DateTime? UtcStartTime { get; set; }
            [System.ObsoleteAttribute]
            public System.DateTime? EndTime { get; set; }
            [System.ObsoleteAttribute]
            public System.DateTime? StartTime { get; set; }
            public System.Func<Amazon.EC2.Model.DescribeSpotPriceHistoryResponse, GetEC2SpotPriceHistoryCmdlet, object> Select { get; set; } =
                (response, cmdlet) => response.SpotPriceHistory;
        }
        
    }
}