/*******************************************************************************
 *  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.CloudFormation;
using Amazon.CloudFormation.Model;

namespace Amazon.PowerShell.Cmdlets.CFN
{
    /// <summary>
    /// Returns Amazon Web Services resource descriptions for running and deleted stacks.
    /// If <code>StackName</code> is specified, all the associated resources that are part
    /// of the stack are returned. If <code>PhysicalResourceId</code> is specified, the associated
    /// resources of the stack that the resource belongs to are returned.
    /// 
    ///  <note><para>
    /// Only the first 100 resources will be returned. If your stack has more resources than
    /// this, you should use <code>ListStackResources</code> instead.
    /// </para></note><para>
    /// For deleted stacks, <code>DescribeStackResources</code> returns resource information
    /// for up to 90 days after the stack has been deleted.
    /// </para><para>
    /// You must specify either <code>StackName</code> or <code>PhysicalResourceId</code>,
    /// but not both. In addition, you can specify <code>LogicalResourceId</code> to filter
    /// the returned result. For more information about resources, the <code>LogicalResourceId</code>
    /// and <code>PhysicalResourceId</code>, go to the <a href="https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/">CloudFormation
    /// User Guide</a>.
    /// </para><note><para>
    /// A <code>ValidationError</code> is returned if you specify both <code>StackName</code>
    /// and <code>PhysicalResourceId</code> in the same request.
    /// </para></note>
    /// </summary>
    [Cmdlet("Get", "CFNStackResourceList")]
    [OutputType("Amazon.CloudFormation.Model.StackResource")]
    [AWSCmdlet("Calls the AWS CloudFormation DescribeStackResources API operation.", Operation = new[] {"DescribeStackResources"}, SelectReturnType = typeof(Amazon.CloudFormation.Model.DescribeStackResourcesResponse), LegacyAlias="Get-CFNStackResources")]
    [AWSCmdletOutput("Amazon.CloudFormation.Model.StackResource or Amazon.CloudFormation.Model.DescribeStackResourcesResponse",
        "This cmdlet returns a collection of Amazon.CloudFormation.Model.StackResource objects.",
        "The service call response (type Amazon.CloudFormation.Model.DescribeStackResourcesResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack."
    )]
    public partial class GetCFNStackResourceListCmdlet : AmazonCloudFormationClientCmdlet, IExecutor
    {
        
        #region Parameter LogicalResourceId
        /// <summary>
        /// <para>
        /// <para>The logical name of the resource as specified in the template.</para><para>Default: There is no default value.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.String LogicalResourceId { get; set; }
        #endregion
        
        #region Parameter PhysicalResourceId
        /// <summary>
        /// <para>
        /// <para>The name or unique identifier that corresponds to a physical instance ID of a resource
        /// supported by CloudFormation.</para><para>For example, for an Amazon Elastic Compute Cloud (EC2) instance, <code>PhysicalResourceId</code>
        /// corresponds to the <code>InstanceId</code>. You can pass the EC2 <code>InstanceId</code>
        /// to <code>DescribeStackResources</code> to find which stack the instance belongs to
        /// and what other resources are part of the stack.</para><para>Required: Conditional. If you don't specify <code>PhysicalResourceId</code>, you must
        /// specify <code>StackName</code>.</para><para>Default: There is no default value.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.String PhysicalResourceId { get; set; }
        #endregion
        
        #region Parameter StackName
        /// <summary>
        /// <para>
        /// <para>The name or the unique stack ID that is associated with the stack, which aren't always
        /// interchangeable:</para><ul><li><para>Running stacks: You can specify either the stack's name or its unique stack ID.</para></li><li><para>Deleted stacks: You must specify the unique stack ID.</para></li></ul><para>Default: There is no default value.</para><para>Required: Conditional. If you don't specify <code>StackName</code>, you must specify
        /// <code>PhysicalResourceId</code>.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(Position = 0, ValueFromPipelineByPropertyName = true, ValueFromPipeline = true)]
        public System.String StackName { get; set; }
        #endregion
        
        #region Parameter Select
        /// <summary>
        /// Use the -Select parameter to control the cmdlet output. The default value is 'StackResources'.
        /// Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.CloudFormation.Model.DescribeStackResourcesResponse).
        /// Specifying the name of a property of type Amazon.CloudFormation.Model.DescribeStackResourcesResponse 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; } = "StackResources";
        #endregion
        
        #region Parameter PassThru
        /// <summary>
        /// Changes the cmdlet behavior to return the value passed to the StackName parameter.
        /// The -PassThru parameter is deprecated, use -Select '^StackName' instead. This parameter will be removed in a future version.
        /// </summary>
        [System.Obsolete("The -PassThru parameter is deprecated, use -Select '^StackName' instead. This parameter will be removed in a future version.")]
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public SwitchParameter PassThru { 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.CloudFormation.Model.DescribeStackResourcesResponse, GetCFNStackResourceListCmdlet>(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.StackName;
            }
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            context.LogicalResourceId = this.LogicalResourceId;
            context.PhysicalResourceId = this.PhysicalResourceId;
            context.StackName = this.StackName;
            
            // 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.CloudFormation.Model.DescribeStackResourcesRequest();
            
            if (cmdletContext.LogicalResourceId != null)
            {
                request.LogicalResourceId = cmdletContext.LogicalResourceId;
            }
            if (cmdletContext.PhysicalResourceId != null)
            {
                request.PhysicalResourceId = cmdletContext.PhysicalResourceId;
            }
            if (cmdletContext.StackName != null)
            {
                request.StackName = cmdletContext.StackName;
            }
            
            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.CloudFormation.Model.DescribeStackResourcesResponse CallAWSServiceOperation(IAmazonCloudFormation client, Amazon.CloudFormation.Model.DescribeStackResourcesRequest request)
        {
            Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "AWS CloudFormation", "DescribeStackResources");
            try
            {
                #if DESKTOP
                return client.DescribeStackResources(request);
                #elif CORECLR
                return client.DescribeStackResourcesAsync(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 LogicalResourceId { get; set; }
            public System.String PhysicalResourceId { get; set; }
            public System.String StackName { get; set; }
            public System.Func<Amazon.CloudFormation.Model.DescribeStackResourcesResponse, GetCFNStackResourceListCmdlet, object> Select { get; set; } =
                (response, cmdlet) => response.StackResources;
        }
        
    }
}