package configuration

import (
	"regexp"
)

// IsValid tests if the config read from file has all required parameters set.
//
// Exits the app if errors are detected
func (c *ConfigFileData) IsValid() ConfigValidationError {
	err := ConfigValidationError{}

	if c.BaseURL == "" {
		err.Add(`Field 'base_url' in config file is required!`)
	}

	for _, cert := range c.Certificates {
		if cert.Name == "" {
			cert.Name = "unnamed_certificate"
			err.Add(`Field 'name' for certificates cannot be blank!`)
		}

		if cert.CertificateSecret == "" {
			err.Add(`Field 'cert_secret' for certificate ` + cert.Name + " cannot be blank!")
		}

		if cert.CertificatePath == "" {
			err.Add(`Field 'cert_path' for certificate ` + cert.Name + " cannot be blank!")
		}

		re := regexp.MustCompile(`^[a-zA-Z0-9._-]+$`)
		if !re.MatchString(cert.Name) {
			err.Add(`Field 'name' for certificate may only contain -_. and alphanumeric characters!`)
		}
	}

	return err
}