merge upstream main

backend/internal/repository/email_cache.go

@@ -9,13 +9,27 @@ import (
 	"github.com/redis/go-redis/v9"
 )
 
-const verifyCodeKeyPrefix = "verify_code:"
+const (
+	verifyCodeKeyPrefix          = "verify_code:"
+	passwordResetKeyPrefix       = "password_reset:"
+	passwordResetSentAtKeyPrefix = "password_reset_sent:"
+)
 
 // verifyCodeKey generates the Redis key for email verification code.
 func verifyCodeKey(email string) string {
 	return verifyCodeKeyPrefix + email
 }
 
+// passwordResetKey generates the Redis key for password reset token.
+func passwordResetKey(email string) string {
+	return passwordResetKeyPrefix + email
+}
+
+// passwordResetSentAtKey generates the Redis key for password reset email sent timestamp.
+func passwordResetSentAtKey(email string) string {
+	return passwordResetSentAtKeyPrefix + email
+}
+
 type emailCache struct {
 	rdb *redis.Client
 }
@@ -50,3 +64,45 @@ func (c *emailCache) DeleteVerificationCode(ctx context.Context, email string) e
 	key := verifyCodeKey(email)
 	return c.rdb.Del(ctx, key).Err()
 }
+
+// Password reset token methods
+
+func (c *emailCache) GetPasswordResetToken(ctx context.Context, email string) (*service.PasswordResetTokenData, error) {
+	key := passwordResetKey(email)
+	val, err := c.rdb.Get(ctx, key).Result()
+	if err != nil {
+		return nil, err
+	}
+	var data service.PasswordResetTokenData
+	if err := json.Unmarshal([]byte(val), &data); err != nil {
+		return nil, err
+	}
+	return &data, nil
+}
+
+func (c *emailCache) SetPasswordResetToken(ctx context.Context, email string, data *service.PasswordResetTokenData, ttl time.Duration) error {
+	key := passwordResetKey(email)
+	val, err := json.Marshal(data)
+	if err != nil {
+		return err
+	}
+	return c.rdb.Set(ctx, key, val, ttl).Err()
+}
+
+func (c *emailCache) DeletePasswordResetToken(ctx context.Context, email string) error {
+	key := passwordResetKey(email)
+	return c.rdb.Del(ctx, key).Err()
+}
+
+// Password reset email cooldown methods
+
+func (c *emailCache) IsPasswordResetEmailInCooldown(ctx context.Context, email string) bool {
+	key := passwordResetSentAtKey(email)
+	exists, err := c.rdb.Exists(ctx, key).Result()
+	return err == nil && exists > 0
+}
+
+func (c *emailCache) SetPasswordResetEmailCooldown(ctx context.Context, email string, ttl time.Duration) error {
+	key := passwordResetSentAtKey(email)
+	return c.rdb.Set(ctx, key, "1", ttl).Err()
+}