package json

import (
	"encoding/json"
	"io"

	"github.com/pkg/errors"
	"gitlab.com/wpetit/goweb/cli/format"
)

const Format format.Format = "json"

func init() {
	format.Register(Format, NewWriter())
}

type Writer struct{}

// Format implements format.Writer.
func (*Writer) Write(writer io.Writer, hints format.Hints, data ...any) error {
	encoder := json.NewEncoder(writer)

	if hints.OutputMode == format.OutputModeWide {
		encoder.SetIndent("", " ")
	}

	if err := encoder.Encode(data); err != nil {
		return errors.WithStack(err)
	}

	return nil
}

func NewWriter() *Writer {
	return &Writer{}
}

var _ format.Writer = &Writer{}