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

package iotanalytics

import (
	"context"
	"time"

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

// Please also see https://docs.aws.amazon.com/goto/WebAPI/iotanalytics-2017-11-27/SampleChannelDataRequest
type SampleChannelDataInput struct {
	_ struct{} `type:"structure"`

	// The name of the channel whose message samples are retrieved.
	//
	// ChannelName is a required field
	ChannelName *string `location:"uri" locationName:"channelName" min:"1" type:"string" required:"true"`

	// The end of the time window from which sample messages are retrieved.
	EndTime *time.Time `location:"querystring" locationName:"endTime" type:"timestamp" timestampFormat:"unix"`

	// The number of sample messages to be retrieved. The limit is 10, the default
	// is also 10.
	MaxMessages *int64 `location:"querystring" locationName:"maxMessages" min:"1" type:"integer"`

	// The start of the time window from which sample messages are retrieved.
	StartTime *time.Time `location:"querystring" locationName:"startTime" type:"timestamp" timestampFormat:"unix"`
}

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

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

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

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

// MarshalFields encodes the AWS API shape using the passed in protocol encoder.
func (s SampleChannelDataInput) MarshalFields(e protocol.FieldEncoder) error {

	if s.ChannelName != nil {
		v := *s.ChannelName

		metadata := protocol.Metadata{}
		e.SetValue(protocol.PathTarget, "channelName", protocol.QuotedValue{ValueMarshaler: protocol.StringValue(v)}, metadata)
	}
	if s.EndTime != nil {
		v := *s.EndTime

		metadata := protocol.Metadata{}
		e.SetValue(protocol.QueryTarget, "endTime", protocol.TimeValue{V: v, Format: protocol.RFC822TimeFromat}, metadata)
	}
	if s.MaxMessages != nil {
		v := *s.MaxMessages

		metadata := protocol.Metadata{}
		e.SetValue(protocol.QueryTarget, "maxMessages", protocol.Int64Value(v), metadata)
	}
	if s.StartTime != nil {
		v := *s.StartTime

		metadata := protocol.Metadata{}
		e.SetValue(protocol.QueryTarget, "startTime", protocol.TimeValue{V: v, Format: protocol.RFC822TimeFromat}, metadata)
	}
	return nil
}

// Please also see https://docs.aws.amazon.com/goto/WebAPI/iotanalytics-2017-11-27/SampleChannelDataResponse
type SampleChannelDataOutput struct {
	_ struct{} `type:"structure"`

	// The list of message samples. Each sample message is returned as a base64-encoded
	// string.
	Payloads [][]byte `locationName:"payloads" min:"1" type:"list"`
}

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

// MarshalFields encodes the AWS API shape using the passed in protocol encoder.
func (s SampleChannelDataOutput) MarshalFields(e protocol.FieldEncoder) error {
	if len(s.Payloads) > 0 {
		v := s.Payloads

		metadata := protocol.Metadata{}
		ls0 := e.List(protocol.BodyTarget, "payloads", metadata)
		ls0.Start()
		for _, v1 := range v {
			ls0.ListAddValue(protocol.QuotedValue{ValueMarshaler: protocol.BytesValue(v1)})
		}
		ls0.End()

	}
	return nil
}

const opSampleChannelData = "SampleChannelData"

// SampleChannelDataRequest returns a request value for making API operation for
// AWS IoT Analytics.
//
// Retrieves a sample of messages from the specified channel ingested during
// the specified timeframe. Up to 10 messages can be retrieved.
//
//    // Example sending a request using SampleChannelDataRequest.
//    req := client.SampleChannelDataRequest(params)
//    resp, err := req.Send(context.TODO())
//    if err == nil {
//        fmt.Println(resp)
//    }
//
// Please also see https://docs.aws.amazon.com/goto/WebAPI/iotanalytics-2017-11-27/SampleChannelData
func (c *Client) SampleChannelDataRequest(input *SampleChannelDataInput) SampleChannelDataRequest {
	op := &aws.Operation{
		Name:       opSampleChannelData,
		HTTPMethod: "GET",
		HTTPPath:   "/channels/{channelName}/sample",
	}

	if input == nil {
		input = &SampleChannelDataInput{}
	}

	req := c.newRequest(op, input, &SampleChannelDataOutput{})
	return SampleChannelDataRequest{Request: req, Input: input, Copy: c.SampleChannelDataRequest}
}

// SampleChannelDataRequest is the request type for the
// SampleChannelData API operation.
type SampleChannelDataRequest struct {
	*aws.Request
	Input *SampleChannelDataInput
	Copy  func(*SampleChannelDataInput) SampleChannelDataRequest
}

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

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

	return resp, nil
}

// SampleChannelDataResponse is the response type for the
// SampleChannelData API operation.
type SampleChannelDataResponse struct {
	*SampleChannelDataOutput

	response *aws.Response
}

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