feat(auth): add chatwoot session routes

internal/auth/refresh_store.go

@@ -3,6 +3,7 @@ package auth
 import (
 	"context"
 	"fmt"
+	"sync"
 	"time"
 
 	"github.com/redis/go-redis/v9"
@@ -18,16 +19,24 @@ import (
 type RefreshTokenStore struct {
 	rdb *redis.Client
 	cfg *config.JWTConfig
+	mu  sync.RWMutex
+	mem map[uint]string
 }
 
 // NewRefreshTokenStore creates a refresh token store backed by Redis.
 func NewRefreshTokenStore(rdb *redis.Client, cfg *config.JWTConfig) *RefreshTokenStore {
-	return &RefreshTokenStore{rdb: rdb, cfg: cfg}
+	return &RefreshTokenStore{rdb: rdb, cfg: cfg, mem: map[uint]string{}}
 }
 
 // Store saves a refresh token in Redis with TTL.
 // Key pattern: refresh_token:{user_id}:{token_hash}
 func (s *RefreshTokenStore) Store(ctx context.Context, userID uint, refreshToken string) error {
+	if s.rdb == nil {
+		s.mu.Lock()
+		defer s.mu.Unlock()
+		s.mem[userID] = refreshToken
+		return nil
+	}
 	key := fmt.Sprintf("gochat:refresh_token:%d", userID)
 	ttl := time.Duration(s.cfg.RefreshExpiryHours) * time.Hour
 	return s.rdb.Set(ctx, key, refreshToken, ttl).Err()
@@ -35,6 +44,12 @@ func (s *RefreshTokenStore) Store(ctx context.Context, userID uint, refreshToken
 
 // Validate checks if a refresh token exists and matches the stored value.
 func (s *RefreshTokenStore) Validate(ctx context.Context, userID uint, refreshToken string) (bool, error) {
+	if s.rdb == nil {
+		s.mu.RLock()
+		defer s.mu.RUnlock()
+		stored, ok := s.mem[userID]
+		return ok && stored == refreshToken, nil
+	}
 	key := fmt.Sprintf("gochat:refresh_token:%d", userID)
 	stored, err := s.rdb.Get(ctx, key).Result()
 	if err == redis.Nil {
@@ -48,6 +63,12 @@ func (s *RefreshTokenStore) Validate(ctx context.Context, userID uint, refreshTo
 
 // Revoke removes a refresh token from Redis (logout).
 func (s *RefreshTokenStore) Revoke(ctx context.Context, userID uint) error {
+	if s.rdb == nil {
+		s.mu.Lock()
+		defer s.mu.Unlock()
+		delete(s.mem, userID)
+		return nil
+	}
 	key := fmt.Sprintf("gochat:refresh_token:%d", userID)
 	return s.rdb.Del(ctx, key).Err()
 }
@@ -56,4 +77,4 @@ func (s *RefreshTokenStore) Revoke(ctx context.Context, userID uint) error {
 // This ensures each refresh token can only be used once.
 func (s *RefreshTokenStore) Rotate(ctx context.Context, userID uint, newRefreshToken string) error {
 	return s.Store(ctx, userID, newRefreshToken)
-}
+}