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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.
 *  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.GameLift;
using Amazon.GameLift.Model;

namespace Amazon.PowerShell.Cmdlets.GML
{
    /// <summary>
    /// Retrieves the details of FlexMatch matchmaking configurations. 
    /// 
    ///  
    /// <para>
    /// This operation offers the following options: (1) retrieve all matchmaking configurations,
    /// (2) retrieve configurations for a specified list, or (3) retrieve all configurations
    /// that use a specified rule set name. When requesting multiple items, use the pagination
    /// parameters to retrieve results as a set of sequential pages. 
    /// </para><para>
    /// If successful, a configuration is returned for each requested name. When specifying
    /// a list of names, only configurations that currently exist are returned. 
    /// </para><para><b>Learn more</b></para><para><a href="https://docs.aws.amazon.com/gamelift/latest/flexmatchguide/matchmaker-build.html">
    /// Setting up FlexMatch matchmakers</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", "GMLMatchmakingConfiguration")]
    [OutputType("Amazon.GameLift.Model.MatchmakingConfiguration")]
    [AWSCmdlet("Calls the Amazon GameLift Service DescribeMatchmakingConfigurations API operation.", Operation = new[] {"DescribeMatchmakingConfigurations"}, SelectReturnType = typeof(Amazon.GameLift.Model.DescribeMatchmakingConfigurationsResponse))]
    [AWSCmdletOutput("Amazon.GameLift.Model.MatchmakingConfiguration or Amazon.GameLift.Model.DescribeMatchmakingConfigurationsResponse",
        "This cmdlet returns a collection of Amazon.GameLift.Model.MatchmakingConfiguration objects.",
        "The service call response (type Amazon.GameLift.Model.DescribeMatchmakingConfigurationsResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack."
    )]
    public partial class GetGMLMatchmakingConfigurationCmdlet : AmazonGameLiftClientCmdlet, IExecutor
    {
        
        #region Parameter Name
        /// <summary>
        /// <para>
        /// <para>A unique identifier for the matchmaking configuration(s) to retrieve. You can use
        /// either the configuration name or ARN value. To request all existing configurations,
        /// leave this parameter empty.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("Names")]
        public System.String[] Name { get; set; }
        #endregion
        
        #region Parameter RuleSetName
        /// <summary>
        /// <para>
        /// <para>A unique identifier for the matchmaking rule set. You can use either the rule set
        /// name or ARN value. Use this parameter to retrieve all matchmaking configurations that
        /// use this rule set.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.String RuleSetName { get; set; }
        #endregion
        
        #region Parameter Limit
        /// <summary>
        /// <para>
        /// <para>The maximum number of results to return. Use this parameter with <code>NextToken</code>
        /// to get results as a set of sequential pages. This parameter is limited to 10.</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")]
        public int? Limit { get; set; }
        #endregion
        
        #region Parameter NextToken
        /// <summary>
        /// <para>
        /// <para>A token that indicates the start of the next sequential page of results. Use the token
        /// that is returned with a previous call to this operation. To start at the beginning
        /// of the result set, do not specify a value.</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 Select
        /// <summary>
        /// Use the -Select parameter to control the cmdlet output. The default value is 'Configurations'.
        /// Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.GameLift.Model.DescribeMatchmakingConfigurationsResponse).
        /// Specifying the name of a property of type Amazon.GameLift.Model.DescribeMatchmakingConfigurationsResponse 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; } = "Configurations";
        #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.GameLift.Model.DescribeMatchmakingConfigurationsResponse, GetGMLMatchmakingConfigurationCmdlet>(Select) ??
                    throw new System.ArgumentException("Invalid value for -Select parameter.", nameof(this.Select));
            }
            context.Limit = this.Limit;
            #if !MODULAR
            if (ParameterWasBound(nameof(this.Limit)) && this.Limit.HasValue)
            {
                WriteWarning("AWSPowerShell and AWSPowerShell.NetCore use the Limit 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 Limit" +
                    " to the service to specify how many items should be returned by each service call.");
            }
            #endif
            if (this.Name != null)
            {
                context.Name = new List<System.String>(this.Name);
            }
            context.NextToken = this.NextToken;
            context.RuleSetName = this.RuleSetName;
            
            // 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.GameLift.Model.DescribeMatchmakingConfigurationsRequest();
            
            if (cmdletContext.Limit != null)
            {
                request.Limit = AutoIterationHelpers.ConvertEmitLimitToServiceTypeInt32(cmdletContext.Limit.Value);
            }
            if (cmdletContext.Name != null)
            {
                request.Names = cmdletContext.Name;
            }
            if (cmdletContext.RuleSetName != null)
            {
                request.RuleSetName = cmdletContext.RuleSetName;
            }
            
            // 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.GameLift.Model.DescribeMatchmakingConfigurationsRequest();
            if (cmdletContext.Name != null)
            {
                request.Names = cmdletContext.Name;
            }
            if (cmdletContext.RuleSetName != null)
            {
                request.RuleSetName = cmdletContext.RuleSetName;
            }
            
            // 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.Limit.HasValue)
            {
                _emitLimit = cmdletContext.Limit;
            }
            var _userControllingPaging = this.NoAutoIteration.IsPresent || ParameterWasBound(nameof(this.NextToken));
            
            var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
            do
            {
                request.NextToken = _nextToken;
                if (_emitLimit.HasValue)
                {
                    request.Limit = 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.Configurations.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.GameLift.Model.DescribeMatchmakingConfigurationsResponse CallAWSServiceOperation(IAmazonGameLift client, Amazon.GameLift.Model.DescribeMatchmakingConfigurationsRequest request)
        {
            Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "Amazon GameLift Service", "DescribeMatchmakingConfigurations");
            try
            {
                #if DESKTOP
                return client.DescribeMatchmakingConfigurations(request);
                #elif CORECLR
                return client.DescribeMatchmakingConfigurationsAsync(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 int? Limit { get; set; }
            public List<System.String> Name { get; set; }
            public System.String NextToken { get; set; }
            public System.String RuleSetName { get; set; }
            public System.Func<Amazon.GameLift.Model.DescribeMatchmakingConfigurationsResponse, GetGMLMatchmakingConfigurationCmdlet, object> Select { get; set; } =
                (response, cmdlet) => response.Configurations;
        }
        
    }
}