package clipmon

import (
	"fmt"
	"path/filepath"
	"regexp"
	"strings"
	"time"
)

const hourBucketLayout = "2006-01-02-15"

var logFilenamePattern = regexp.MustCompile(`^\d{4}-\d{2}-\d{2}-\d{2}\.log$`)

func HourBucket(t time.Time) string {
	return t.Local().Format(hourBucketLayout)
}

func LogFilename(bucket string) string {
	return bucket + ".log"
}

func ValidLogFilename(name string) bool {
	return logFilenamePattern.MatchString(filepath.Base(name))
}

func formatLine(event Event) string {
	when := event.Time.UTC().Format("2006-01-02T15:04:05.000Z")
	switch event.Kind {
	case "image":
		return fmt.Sprintf("%s [image] %s\n", when, event.ImagePath)
	default:
		text := strings.ReplaceAll(event.Text, "\r\n", "\n")
		text = strings.ReplaceAll(text, "\r", "\n")
		return fmt.Sprintf("%s [text]\n%s\n", when, text)
	}
}