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

package textract

import (
	"context"

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

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

	// A unique identifier for the text-detection job. The JobId is returned from
	// StartDocumentAnalysis. A JobId value is only valid for 7 days.
	//
	// JobId is a required field
	JobId *string `min:"1" type:"string" required:"true"`

	// The maximum number of results to return per paginated call. The largest value
	// that you can specify is 1,000. If you specify a value greater than 1,000,
	// a maximum of 1,000 results is returned. The default value is 1,000.
	MaxResults *int64 `min:"1" type:"integer"`

	// If the previous response was incomplete (because there are more blocks to
	// retrieve), Amazon Textract returns a pagination token in the response. You
	// can use this pagination token to retrieve the next set of blocks.
	NextToken *string `min:"1" type:"string"`
}

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

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

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

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

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

	AnalyzeDocumentModelVersion *string `type:"string"`

	// The results of the text-analysis operation.
	Blocks []Block `type:"list"`

	// Information about a document that Amazon Textract processed. DocumentMetadata
	// is returned in every page of paginated responses from an Amazon Textract
	// video operation.
	DocumentMetadata *DocumentMetadata `type:"structure"`

	// The current status of the text detection job.
	JobStatus JobStatus `type:"string" enum:"true"`

	// If the response is truncated, Amazon Textract returns this token. You can
	// use this token in the subsequent request to retrieve the next set of text
	// detection results.
	NextToken *string `min:"1" type:"string"`

	// The current status of an asynchronous document-analysis operation.
	StatusMessage *string `type:"string"`

	// A list of warnings that occurred during the document-analysis operation.
	Warnings []Warning `type:"list"`
}

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

const opGetDocumentAnalysis = "GetDocumentAnalysis"

// GetDocumentAnalysisRequest returns a request value for making API operation for
// Amazon Textract.
//
// Gets the results for an Amazon Textract asynchronous operation that analyzes
// text in a document.
//
// You start asynchronous text analysis by calling StartDocumentAnalysis, which
// returns a job identifier (JobId). When the text analysis operation finishes,
// Amazon Textract publishes a completion status to the Amazon Simple Notification
// Service (Amazon SNS) topic that's registered in the initial call to StartDocumentAnalysis.
// To get the results of the text-detection operation, first check that the
// status value published to the Amazon SNS topic is SUCCEEDED. If so, call
// GetDocumentAnalysis, and pass the job identifier (JobId) from the initial
// call to StartDocumentAnalysis.
//
// GetDocumentAnalysis returns an array of Block objects. The following types
// of information are returned:
//
//    * Form data (key-value pairs). The related information is returned in
//    two Block objects, each of type KEY_VALUE_SET: a KEY Block object and
//    a VALUE Block object. For example, Name: Ana Silva Carolina contains a
//    key and value. Name: is the key. Ana Silva Carolina is the value.
//
//    * Table and table cell data. A TABLE Block object contains information
//    about a detected table. A CELL Block object is returned for each cell
//    in a table.
//
//    * Lines and words of text. A LINE Block object contains one or more WORD
//    Block objects. All lines and words that are detected in the document are
//    returned (including text that doesn't have a relationship with the value
//    of the StartDocumentAnalysis FeatureTypes input parameter).
//
// Selection elements such as check boxes and option buttons (radio buttons)
// can be detected in form data and in tables. A SELECTION_ELEMENT Block object
// contains information about a selection element, including the selection status.
//
// Use the MaxResults parameter to limit the number of blocks that are returned.
// If there are more results than specified in MaxResults, the value of NextToken
// in the operation response contains a pagination token for getting the next
// set of results. To get the next page of results, call GetDocumentAnalysis,
// and populate the NextToken request parameter with the token value that's
// returned from the previous call to GetDocumentAnalysis.
//
// For more information, see Document Text Analysis (https://docs.aws.amazon.com/textract/latest/dg/how-it-works-analyzing.html).
//
//    // Example sending a request using GetDocumentAnalysisRequest.
//    req := client.GetDocumentAnalysisRequest(params)
//    resp, err := req.Send(context.TODO())
//    if err == nil {
//        fmt.Println(resp)
//    }
//
// Please also see https://docs.aws.amazon.com/goto/WebAPI/textract-2018-06-27/GetDocumentAnalysis
func (c *Client) GetDocumentAnalysisRequest(input *GetDocumentAnalysisInput) GetDocumentAnalysisRequest {
	op := &aws.Operation{
		Name:       opGetDocumentAnalysis,
		HTTPMethod: "POST",
		HTTPPath:   "/",
	}

	if input == nil {
		input = &GetDocumentAnalysisInput{}
	}

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

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

// GetDocumentAnalysisRequest is the request type for the
// GetDocumentAnalysis API operation.
type GetDocumentAnalysisRequest struct {
	*aws.Request
	Input *GetDocumentAnalysisInput
	Copy  func(*GetDocumentAnalysisInput) GetDocumentAnalysisRequest
}

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

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

	return resp, nil
}

// GetDocumentAnalysisResponse is the response type for the
// GetDocumentAnalysis API operation.
type GetDocumentAnalysisResponse struct {
	*GetDocumentAnalysisOutput

	response *aws.Response
}

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