package worker

import "encoding/json"

// Enqueuer defines the interface for enqueuing background email tasks.
type Enqueuer interface {
	EnqueueWelcomeEmail(to, firstName, code string) error
	EnqueueVerificationEmail(to, firstName, code string) error
	EnqueuePasswordResetEmail(to, firstName, code, resetToken string) error
	EnqueuePasswordChangedEmail(to, firstName string) error
}

// Verify TaskClient satisfies the interface at compile time.
var _ Enqueuer = (*TaskClient)(nil)

// BuildWelcomeEmailPayload marshals a WelcomeEmailPayload to JSON bytes.
func BuildWelcomeEmailPayload(to, firstName, code string) ([]byte, error) {
	return json.Marshal(WelcomeEmailPayload{
		EmailPayload:     EmailPayload{To: to, FirstName: firstName},
		ConfirmationCode: code,
	})
}

// BuildVerificationEmailPayload marshals a VerificationEmailPayload to JSON bytes.
func BuildVerificationEmailPayload(to, firstName, code string) ([]byte, error) {
	return json.Marshal(VerificationEmailPayload{
		EmailPayload: EmailPayload{To: to, FirstName: firstName},
		Code:         code,
	})
}

// BuildPasswordResetEmailPayload marshals a PasswordResetEmailPayload to JSON bytes.
func BuildPasswordResetEmailPayload(to, firstName, code, resetToken string) ([]byte, error) {
	return json.Marshal(PasswordResetEmailPayload{
		EmailPayload: EmailPayload{To: to, FirstName: firstName},
		Code:         code,
		ResetToken:   resetToken,
	})
}

// BuildPasswordChangedEmailPayload marshals an EmailPayload to JSON bytes.
func BuildPasswordChangedEmailPayload(to, firstName string) ([]byte, error) {
	return json.Marshal(EmailPayload{To: to, FirstName: firstName})
}