package pgproto3

import (
	
	
	

	
)

type Close struct {
	ObjectType byte // 'S' = prepared statement, 'P' = portal
	Name       string
}

// Frontend identifies this message as sendable by a PostgreSQL frontend.
func (*Close) () {}

// Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message
// type identifier and 4 byte message length.
func ( *Close) ( []byte) error {
	if len() < 2 {
		return &invalidMessageFormatErr{messageType: "Close"}
	}

	.ObjectType = [0]
	 := 1

	 := bytes.IndexByte([:], 0)
	if  != len([:])-1 {
		return &invalidMessageFormatErr{messageType: "Close"}
	}

	.Name = string([ : len()-1])

	return nil
}

// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
func ( *Close) ( []byte) []byte {
	 = append(, 'C')
	 := len()
	 = pgio.AppendInt32(, -1)

	 = append(, .ObjectType)
	 = append(, .Name...)
	 = append(, 0)

	pgio.SetInt32([:], int32(len([:])))

	return 
}

// MarshalJSON implements encoding/json.Marshaler.
func ( Close) () ([]byte, error) {
	return json.Marshal(struct {
		       string
		 string
		       string
	}{
		:       "Close",
		: string(.ObjectType),
		:       .Name,
	})
}

// UnmarshalJSON implements encoding/json.Unmarshaler.
func ( *Close) ( []byte) error {
	// Ignore null, like in the main JSON package.
	if string() == "null" {
		return nil
	}

	var  struct {
		 string
		       string
	}
	if  := json.Unmarshal(, &);  != nil {
		return 
	}

	if len(.) != 1 {
		return errors.New("invalid length for Close.ObjectType")
	}

	.ObjectType = byte(.[0])
	.Name = .
	return nil
}