// Code generated by private/model/cli/gen-api/main.go. DO NOT EDIT.

package rekognition

import (
	"context"
	"time"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/internal/awsutil"
)

type DescribeCollectionInput struct {
	_ struct{} `type:"structure"`

	// The ID of the collection to describe.
	//
	// CollectionId is a required field
	CollectionId *string `min:"1" type:"string" required:"true"`
}

// String returns the string representation
func (s DescribeCollectionInput) String() string {
	return awsutil.Prettify(s)
}

// Validate inspects the fields of the type to determine if they are valid.
func (s *DescribeCollectionInput) Validate() error {
	invalidParams := aws.ErrInvalidParams{Context: "DescribeCollectionInput"}

	if s.CollectionId == nil {
		invalidParams.Add(aws.NewErrParamRequired("CollectionId"))
	}
	if s.CollectionId != nil && len(*s.CollectionId) < 1 {
		invalidParams.Add(aws.NewErrParamMinLen("CollectionId", 1))
	}

	if invalidParams.Len() > 0 {
		return invalidParams
	}
	return nil
}

type DescribeCollectionOutput struct {
	_ struct{} `type:"structure"`

	// The Amazon Resource Name (ARN) of the collection.
	CollectionARN *string `type:"string"`

	// The number of milliseconds since the Unix epoch time until the creation of
	// the collection. The Unix epoch time is 00:00:00 Coordinated Universal Time
	// (UTC), Thursday, 1 January 1970.
	CreationTimestamp *time.Time `type:"timestamp"`

	// The number of faces that are indexed into the collection. To index faces
	// into a collection, use IndexFaces.
	FaceCount *int64 `type:"long"`

	// The version of the face model that's used by the collection for face detection.
	//
	// For more information, see Model Versioning in the Amazon Rekognition Developer
	// Guide.
	FaceModelVersion *string `type:"string"`
}

// String returns the string representation
func (s DescribeCollectionOutput) String() string {
	return awsutil.Prettify(s)
}

const opDescribeCollection = "DescribeCollection"

// DescribeCollectionRequest returns a request value for making API operation for
// Amazon Rekognition.
//
// Describes the specified collection. You can use DescribeCollection to get
// information, such as the number of faces indexed into a collection and the
// version of the model used by the collection for face detection.
//
// For more information, see Describing a Collection in the Amazon Rekognition
// Developer Guide.
//
//    // Example sending a request using DescribeCollectionRequest.
//    req := client.DescribeCollectionRequest(params)
//    resp, err := req.Send(context.TODO())
//    if err == nil {
//        fmt.Println(resp)
//    }
func (c *Client) DescribeCollectionRequest(input *DescribeCollectionInput) DescribeCollectionRequest {
	op := &aws.Operation{
		Name:       opDescribeCollection,
		HTTPMethod: "POST",
		HTTPPath:   "/",
	}

	if input == nil {
		input = &DescribeCollectionInput{}
	}

	req := c.newRequest(op, input, &DescribeCollectionOutput{})

	return DescribeCollectionRequest{Request: req, Input: input, Copy: c.DescribeCollectionRequest}
}

// DescribeCollectionRequest is the request type for the
// DescribeCollection API operation.
type DescribeCollectionRequest struct {
	*aws.Request
	Input *DescribeCollectionInput
	Copy  func(*DescribeCollectionInput) DescribeCollectionRequest
}

// Send marshals and sends the DescribeCollection API request.
func (r DescribeCollectionRequest) Send(ctx context.Context) (*DescribeCollectionResponse, error) {
	r.Request.SetContext(ctx)
	err := r.Request.Send()
	if err != nil {
		return nil, err
	}

	resp := &DescribeCollectionResponse{
		DescribeCollectionOutput: r.Request.Data.(*DescribeCollectionOutput),
		response:                 &aws.Response{Request: r.Request},
	}

	return resp, nil
}

// DescribeCollectionResponse is the response type for the
// DescribeCollection API operation.
type DescribeCollectionResponse struct {
	*DescribeCollectionOutput

	response *aws.Response
}

// SDKResponseMetdata returns the response metadata for the
// DescribeCollection request.
func (r *DescribeCollectionResponse) SDKResponseMetdata() *aws.Response {
	return r.response
}