/*******************************************************************************
 *  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.CertificateManager;
using Amazon.CertificateManager.Model;

namespace Amazon.PowerShell.Cmdlets.ACM
{
    /// <summary>
    /// Exports a private certificate issued by a private certificate authority (CA) for use
    /// anywhere. The exported file contains the certificate, the certificate chain, and the
    /// encrypted private 2048-bit RSA key associated with the public key that is embedded
    /// in the certificate. For security, you must assign a passphrase for the private key
    /// when exporting it. 
    /// 
    ///  
    /// <para>
    /// For information about exporting and formatting a certificate using the ACM console
    /// or CLI, see <a href="https://docs.aws.amazon.com/acm/latest/userguide/gs-acm-export-private.html">Export
    /// a Private Certificate</a>.
    /// </para>
    /// </summary>
    [Cmdlet("Export", "ACMCertificate", SupportsShouldProcess = true, ConfirmImpact = ConfirmImpact.Medium)]
    [OutputType("Amazon.CertificateManager.Model.ExportCertificateResponse")]
    [AWSCmdlet("Calls the AWS Certificate Manager ExportCertificate API operation.", Operation = new[] {"ExportCertificate"}, SelectReturnType = typeof(Amazon.CertificateManager.Model.ExportCertificateResponse))]
    [AWSCmdletOutput("Amazon.CertificateManager.Model.ExportCertificateResponse",
        "This cmdlet returns an Amazon.CertificateManager.Model.ExportCertificateResponse object containing multiple properties. The object can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack."
    )]
    public partial class ExportACMCertificateCmdlet : AmazonCertificateManagerClientCmdlet, IExecutor
    {
        
        protected override bool IsSensitiveRequest { get; set; } = true;
        
        protected override bool IsSensitiveResponse { get; set; } = true;
        
        #region Parameter CertificateArn
        /// <summary>
        /// <para>
        /// <para>An Amazon Resource Name (ARN) of the issued certificate. This must be of the form:</para><para><code>arn:aws:acm:region:account:certificate/12345678-1234-1234-1234-123456789012</code></para>
        /// </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 CertificateArn { get; set; }
        #endregion
        
        #region Parameter Passphrase
        /// <summary>
        /// <para>
        /// <para>Passphrase to associate with the encrypted exported private key. </para><note><para>When creating your passphrase, you can use any ASCII character except #, $, or %.</para></note><para>If you want to later decrypt the private key, you must have the passphrase. You can
        /// use the following OpenSSL command to decrypt a private key. After entering the command,
        /// you are prompted for the passphrase.</para><para><code>openssl rsa -in encrypted_key.pem -out decrypted_key.pem</code></para>
        /// </para>
        /// <para>The cmdlet will automatically convert the supplied parameter of type string, string[], System.IO.FileInfo or System.IO.Stream to byte[] before supplying it to the service.</para>
        /// </summary>
        #if !MODULAR
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        #else
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true, Mandatory = true)]
        [System.Management.Automation.AllowNull]
        #endif
        [Amazon.PowerShell.Common.AWSRequiredParameter]
        [Amazon.PowerShell.Common.MemoryStreamParameterConverter]
        public byte[] Passphrase { get; set; }
        #endregion
        
        #region Parameter Select
        /// <summary>
        /// Use the -Select parameter to control the cmdlet output. The default value is '*'.
        /// Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.CertificateManager.Model.ExportCertificateResponse).
        /// Specifying the name of a property of type Amazon.CertificateManager.Model.ExportCertificateResponse 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; } = "*";
        #endregion
        
        #region Parameter PassThru
        /// <summary>
        /// Changes the cmdlet behavior to return the value passed to the CertificateArn parameter.
        /// The -PassThru parameter is deprecated, use -Select '^CertificateArn' instead. This parameter will be removed in a future version.
        /// </summary>
        [System.Obsolete("The -PassThru parameter is deprecated, use -Select '^CertificateArn' 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.CertificateArn), MyInvocation.BoundParameters);
            if (!ConfirmShouldProceed(this.Force.IsPresent, resourceIdentifiersText, "Export-ACMCertificate (ExportCertificate)"))
            {
                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.CertificateManager.Model.ExportCertificateResponse, ExportACMCertificateCmdlet>(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.CertificateArn;
            }
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            context.CertificateArn = this.CertificateArn;
            #if MODULAR
            if (this.CertificateArn == null && ParameterWasBound(nameof(this.CertificateArn)))
            {
                WriteWarning("You are passing $null as a value for parameter CertificateArn 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
            context.Passphrase = this.Passphrase;
            #if MODULAR
            if (this.Passphrase == null && ParameterWasBound(nameof(this.Passphrase)))
            {
                WriteWarning("You are passing $null as a value for parameter Passphrase 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
            
            // 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)
        {
            System.IO.MemoryStream _PassphraseStream = null;
            
            try
            {
                var cmdletContext = context as CmdletContext;
                // create request
                var request = new Amazon.CertificateManager.Model.ExportCertificateRequest();
                
                if (cmdletContext.CertificateArn != null)
                {
                    request.CertificateArn = cmdletContext.CertificateArn;
                }
                if (cmdletContext.Passphrase != null)
                {
                    _PassphraseStream = new System.IO.MemoryStream(cmdletContext.Passphrase);
                    request.Passphrase = _PassphraseStream;
                }
                
                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;
            }
            finally
            {
                if( _PassphraseStream != null)
                {
                    _PassphraseStream.Dispose();
                }
            }
        }
        
        public ExecutorContext CreateContext()
        {
            return new CmdletContext();
        }
        
        #endregion
        
        #region AWS Service Operation Call
        
        private Amazon.CertificateManager.Model.ExportCertificateResponse CallAWSServiceOperation(IAmazonCertificateManager client, Amazon.CertificateManager.Model.ExportCertificateRequest request)
        {
            Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "AWS Certificate Manager", "ExportCertificate");
            try
            {
                #if DESKTOP
                return client.ExportCertificate(request);
                #elif CORECLR
                return client.ExportCertificateAsync(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 CertificateArn { get; set; }
            public byte[] Passphrase { get; set; }
            public System.Func<Amazon.CertificateManager.Model.ExportCertificateResponse, ExportACMCertificateCmdlet, object> Select { get; set; } =
                (response, cmdlet) => response;
        }
        
    }
}