imap/export/json_exporter.go

// Copyright (c) 2025 H0llyW00dzZ All rights reserved.
//
// By accessing or using this software, you agree to be bound by the terms
// of the License Agreement, which you can find at LICENSE files.

package export

import (
	"encoding/json"
	"fmt"
	"io"
)

// JSONEncoderFunc defines a function type for custom JSON encoding
type JSONEncoderFunc func(v any, writer io.Writer) error

// JSONExporter implements the Exporter interface for JSON with a custom encoder
type JSONExporter struct {
	Encoder JSONEncoderFunc
}

// Export writes messages to the writer as a JSON array using the custom JSON encoder
func (e *JSONExporter) Export(messages []map[string]any, writer io.Writer) error {
	// Use the encoder to write the entire slice as a JSON array
	if err := e.Encoder(messages, writer); err != nil {
		return fmt.Errorf("failed to encode messages to JSON: %v", err)
	}
	return nil
}

// DefaultJSONEncoder is the default JSON encoding function using the standard library
func DefaultJSONEncoder(v any, writer io.Writer) error {
	encoder := json.NewEncoder(writer)
	return encoder.Encode(v)
}