/*******************************************************************************
 *  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 the estimated monthly cost of a template. The return value is an Amazon Web
    /// Services Simple Monthly Calculator URL with a query string that describes the resources
    /// required to run the template.
    /// </summary>
    [Cmdlet("Measure", "CFNTemplateCost", SupportsShouldProcess = true, ConfirmImpact = ConfirmImpact.Medium)]
    [OutputType("System.String")]
    [AWSCmdlet("Calls the AWS CloudFormation EstimateTemplateCost API operation.", Operation = new[] {"EstimateTemplateCost"}, SelectReturnType = typeof(Amazon.CloudFormation.Model.EstimateTemplateCostResponse))]
    [AWSCmdletOutput("System.String or Amazon.CloudFormation.Model.EstimateTemplateCostResponse",
        "This cmdlet returns a System.String object.",
        "The service call response (type Amazon.CloudFormation.Model.EstimateTemplateCostResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack."
    )]
    public partial class MeasureCFNTemplateCostCmdlet : AmazonCloudFormationClientCmdlet, IExecutor
    {
        
        #region Parameter Parameter
        /// <summary>
        /// <para>
        /// <para>A list of <code>Parameter</code> structures that specify input parameters.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        [Alias("Parameters")]
        public Amazon.CloudFormation.Model.Parameter[] Parameter { get; set; }
        #endregion
        
        #region Parameter TemplateBody
        /// <summary>
        /// <para>
        /// <para>Structure containing the template body with a minimum length of 1 byte and a maximum
        /// length of 51,200 bytes. (For more information, go to <a href="https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/template-anatomy.html">Template
        /// Anatomy</a> in the CloudFormation User Guide.)</para><para>Conditional: You must pass <code>TemplateBody</code> or <code>TemplateURL</code>.
        /// If both are passed, only <code>TemplateBody</code> is used.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(Position = 0, ValueFromPipelineByPropertyName = true, ValueFromPipeline = true)]
        public System.String TemplateBody { get; set; }
        #endregion
        
        #region Parameter TemplateURL
        /// <summary>
        /// <para>
        /// <para>Location of file containing the template body. The URL must point to a template that's
        /// located in an Amazon S3 bucket or a Systems Manager document. For more information,
        /// go to <a href="https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/template-anatomy.html">Template
        /// Anatomy</a> in the CloudFormation User Guide.</para><para>Conditional: You must pass <code>TemplateURL</code> or <code>TemplateBody</code>.
        /// If both are passed, only <code>TemplateBody</code> is used.</para>
        /// </para>
        /// </summary>
        [System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
        public System.String TemplateURL { get; set; }
        #endregion
        
        #region Parameter Select
        /// <summary>
        /// Use the -Select parameter to control the cmdlet output. The default value is 'Url'.
        /// Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.CloudFormation.Model.EstimateTemplateCostResponse).
        /// Specifying the name of a property of type Amazon.CloudFormation.Model.EstimateTemplateCostResponse 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; } = "Url";
        #endregion
        
        #region Parameter PassThru
        /// <summary>
        /// Changes the cmdlet behavior to return the value passed to the TemplateBody parameter.
        /// The -PassThru parameter is deprecated, use -Select '^TemplateBody' instead. This parameter will be removed in a future version.
        /// </summary>
        [System.Obsolete("The -PassThru parameter is deprecated, use -Select '^TemplateBody' 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.TemplateBody), MyInvocation.BoundParameters);
            if (!ConfirmShouldProceed(this.Force.IsPresent, resourceIdentifiersText, "Measure-CFNTemplateCost (EstimateTemplateCost)"))
            {
                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.CloudFormation.Model.EstimateTemplateCostResponse, MeasureCFNTemplateCostCmdlet>(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.TemplateBody;
            }
            #pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
            if (this.Parameter != null)
            {
                context.Parameter = new List<Amazon.CloudFormation.Model.Parameter>(this.Parameter);
            }
            context.TemplateBody = this.TemplateBody;
            context.TemplateURL = this.TemplateURL;
            
            // 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.EstimateTemplateCostRequest();
            
            if (cmdletContext.Parameter != null)
            {
                request.Parameters = cmdletContext.Parameter;
            }
            if (cmdletContext.TemplateBody != null)
            {
                request.TemplateBody = cmdletContext.TemplateBody;
            }
            if (cmdletContext.TemplateURL != null)
            {
                request.TemplateURL = cmdletContext.TemplateURL;
            }
            
            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.EstimateTemplateCostResponse CallAWSServiceOperation(IAmazonCloudFormation client, Amazon.CloudFormation.Model.EstimateTemplateCostRequest request)
        {
            Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "AWS CloudFormation", "EstimateTemplateCost");
            try
            {
                #if DESKTOP
                return client.EstimateTemplateCost(request);
                #elif CORECLR
                return client.EstimateTemplateCostAsync(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 List<Amazon.CloudFormation.Model.Parameter> Parameter { get; set; }
            public System.String TemplateBody { get; set; }
            public System.String TemplateURL { get; set; }
            public System.Func<Amazon.CloudFormation.Model.EstimateTemplateCostResponse, MeasureCFNTemplateCostCmdlet, object> Select { get; set; } =
                (response, cmdlet) => response.Url;
        }
        
    }
}