add: chat service

app/chat/rpc/internal/svc/store.go

@@ -0,0 +1,38 @@
+package svc
+
+import (
+	"sync"
+
+	"juwan-backend/app/chat/rpc/pb"
+)
+
+type ChatStore struct {
+	Mu sync.RWMutex
+
+	nextSessionID int64
+	nextMessageID int64
+
+	Sessions        map[int64]*pb.ChatSessions
+	Messages        map[int64]*pb.ChatMessages
+	SessionMessages map[int64][]int64
+}
+
+func NewChatStore() *ChatStore {
+	return &ChatStore{
+		nextSessionID:   1000,
+		nextMessageID:   1000,
+		Sessions:        make(map[int64]*pb.ChatSessions),
+		Messages:        make(map[int64]*pb.ChatMessages),
+		SessionMessages: make(map[int64][]int64),
+	}
+}
+
+func (s *ChatStore) NextSession() int64 {
+	s.nextSessionID++
+	return s.nextSessionID
+}
+
+func (s *ChatStore) NextMessage() int64 {
+	s.nextMessageID++
+	return s.nextMessageID
+}