package main

import "time"

// shouldInitEmail returns true if email config has host and user set.
func shouldInitEmail(host, user string) bool {
	return host != "" && user != ""
}

// shouldInitStorage returns true if upload directory is configured.
func shouldInitStorage(uploadDir string) bool {
	return uploadDir != ""
}

// shouldInitEncryption returns true if encryption key is set.
func shouldInitEncryption(encryptionKey string) bool {
	return encryptionKey != ""
}

// connectWithRetry attempts a connection with exponential backoff.
// Returns nil on success or the last error after all retries fail.
func connectWithRetry(connect func() error, maxRetries int) error {
	var err error
	for i := 0; i < maxRetries; i++ {
		err = connect()
		if err == nil {
			return nil
		}
		time.Sleep(time.Duration(i+1) * time.Millisecond) // use ms in tests
	}
	return err
}