Modify the code logic and add a mongo svc context

app/chat/api/internal/svc/serviceContext.go

@@ -1,22 +1,55 @@
 package svc
 
 import (
+	"context"
+	"log"
+	"time"
+
 	"juwan-backend/app/chat/api/internal/config"
 	"juwan-backend/app/chat/chatcore"
 
+	"github.com/redis/go-redis/v9"
 	"github.com/wwweww/go-wst/stateless"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
 )
 
 type ServiceContext struct {
 	Config   config.Config
-	Store    *chatcore.Store
+	Store    chatcore.Store
 	MsgStore *stateless.MemoryStore
 }
 
 func NewServiceContext(c config.Config) *ServiceContext {
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	mongoClient, err := mongo.Connect(ctx, options.Client().ApplyURI(c.Mongo.URI))
+	if err != nil {
+		log.Fatalf("mongo connect: %v", err)
+	}
+	if err := mongoClient.Ping(ctx, nil); err != nil {
+		log.Fatalf("mongo ping: %v", err)
+	}
+
+	db := mongoClient.Database(c.Mongo.Database)
+	mongoStore, err := chatcore.NewMongoStore(db)
+	if err != nil {
+		log.Fatalf("mongo store: %v", err)
+	}
+
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     c.Redis.Addr,
+		Password: c.Redis.Password,
+		DB:       c.Redis.DB,
+	})
+	if err := rdb.Ping(ctx).Err(); err != nil {
+		log.Fatalf("redis ping: %v", err)
+	}
+
 	return &ServiceContext{
 		Config:   c,
-		Store:    chatcore.NewStore(),
+		Store:    chatcore.NewCachedStore(mongoStore, rdb),
 		MsgStore: stateless.NewMemoryStore(),
 	}
 }