package auth

import (
	"context"
	"log/slog"
)

// EmailSender delivers transactional auth emails (verification, reset,
// collaborator-invite). Block A ships LogSender so dev environments work
// without Twilio/SES. Tier 1 Block D replaced this with a real SES-backed
// sender; Tier 2 Block C added the collaborator-invite method.
type EmailSender interface {
	SendVerification(ctx context.Context, to, name, link string) error
	SendPasswordReset(ctx context.Context, to, name, link string) error
	SendCollaboratorInvite(ctx context.Context, to, inviterName, eventName, role, link string) error
	// SendRSVPEditLink delivers a one-time edit link to a guest who's
	// reopened their invitation from a device the Gate didn't recognise.
	// Tier 2 Block G follow-up. The link carries a short-lived nonce
	// (~30 min) that lets the guest see + change their existing RSVP
	// without exposing it to anyone who got hold of the original
	// invitation token.
	SendRSVPEditLink(ctx context.Context, to, guestName, eventName, link string) error
}

type LogEmailSender struct {
	Logger *slog.Logger
}

func (l LogEmailSender) SendVerification(_ context.Context, to, name, link string) error {
	l.Logger.Info("auth email (stub): verification",
		"to", to, "name", name, "link", link,
	)
	return nil
}

func (l LogEmailSender) SendPasswordReset(_ context.Context, to, name, link string) error {
	l.Logger.Info("auth email (stub): password reset",
		"to", to, "name", name, "link", link,
	)
	return nil
}

func (l LogEmailSender) SendCollaboratorInvite(_ context.Context, to, inviterName, eventName, role, link string) error {
	l.Logger.Info("auth email (stub): collaborator invite",
		"to", to, "inviter", inviterName, "event", eventName, "role", role, "link", link,
	)
	return nil
}

func (l LogEmailSender) SendRSVPEditLink(_ context.Context, to, guestName, eventName, link string) error {
	l.Logger.Info("auth email (stub): rsvp edit link",
		"to", to, "guest", guestName, "event", eventName, "link", link,
	)
	return nil
}