initial multi-language concept

patch-schema/language.sql

@@ -0,0 +1,6 @@
+BEGIN;
+
+ALTER TABLE IF EXISTS public.users
+    ADD COLUMN IF NOT EXISTS language text NOT NULL DEFAULT 'en';
+
+END;

server/channelserver/handlers.go

@@ -141,6 +141,8 @@ func handleMsgSysLogin(s *Session, p mhfpacket.MHFPacket) {
 	s.charID = pkt.CharID0
 	s.token = pkt.LoginTokenString
 	s.Unlock()
+
+	s.dict = getLangStrings(s)
 	updateRights(s)
 	bf := byteframe.NewByteFrame()
 	bf.WriteUint32(uint32(Time_Current_Adjusted().Unix())) // Unix timestamp

server/channelserver/handlers_cafe.go

@@ -89,7 +89,8 @@ func handleMsgMhfGetCafeDuration(s *Session, p mhfpacket.MHFPacket) {
 	}
 	bf.WriteUint32(cafeTime) // Total cafe time
 	bf.WriteUint16(0)
-	ps.Uint16(bf, fmt.Sprintf("Resets on %s %d", cafeReset.Month().String(), cafeReset.Day()), true)
+	ps.Uint16(bf, fmt.Sprintf(s.dict["cafeReset"], int(cafeReset.Month()), cafeReset.Day()), true)
+
 	doAckBufSucceed(s, pkt.AckHandle, bf.Data())
 }
 

server/channelserver/handlers_lang.go

@@ -0,0 +1,21 @@
+package channelserver
+
+import "go.uber.org/zap"
+
+func getLangStrings(s *Session) map[string]string {
+	var lang string
+	strings := make(map[string]string)
+	err := s.server.db.QueryRow(`SELECT language FROM users, characters WHERE characters.id = $1 AND users.id = characters.user_id`, s.charID).Scan(&lang)
+	if err != nil {
+		s.logger.Warn("No language set for user", zap.Uint32("CID", s.charID))
+	}
+	switch lang {
+	case "jp":
+		strings["language"] = "日本語"
+		strings["cafeReset"] = "%d/%dにリセット"
+	default:
+		strings["language"] = "English"
+		strings["cafeReset"] = "Resets on %d/%d"
+	}
+	return strings
+}

server/channelserver/sys_session.go

@@ -47,6 +47,8 @@ type Session struct {
 	kqf              []byte
 	kqfOverride      bool
 
+	dict map[string]string
+
 	semaphore *Semaphore // Required for the stateful MsgSysUnreserveStage packet.
 
 	// A stack containing the stage movement history (push on enter/move, pop on back)