mc root source folder cleanup

mc/server/kicker.go

@@ -0,0 +1,51 @@
+package server
+
+import (
+	"errors"
+
+	"fmt"
+
+	"github.com/admin-else/strom/mc/nbt"
+	"github.com/admin-else/strom/mc/proto"
+	"github.com/admin-else/strom/mc/proto_base"
+	"github.com/admin-else/strom/mc/proto_generated/v1_21_8"
+	"github.com/admin-else/strom/mc/text"
+)
+
+var (
+	NotClientErr       = errors.New("not a servee")
+	CantKickInStateErr = errors.New("cant kick in this state")
+)
+
+func Kick(c *proto.Conn, reason *text.Component, status string) (err error) {
+	if c.Actor != proto_base.Servee {
+		err = NotClientErr
+		return
+	}
+	switch c.State() {
+	case proto_base.Handshaking:
+		err = CantKickInStateErr
+	case proto_base.Status:
+		if status == "" {
+			var b []byte
+			b, err = reason.MarshalJSON()
+			if err != nil {
+				return
+			}
+			status = fmt.Sprintf("{\"description\":%s}", string(b))
+		}
+		err = c.Send(&v1_21_8.StatusToClientPacketServerInfo{Response: status})
+	case proto_base.Login:
+		var b []byte
+		b, err = reason.MarshalJSON()
+		if err != nil {
+			return
+		}
+		err = c.Send(&v1_21_8.LoginToClientPacketDisconnect{Reason: string(b)})
+	case proto_base.Configuration:
+		err = c.Send(&v1_21_8.ConfigurationToClientPacketDisconnect{Reason: nbt.Anon{Value: reason.ToNBT()}})
+	case proto_base.Play:
+		err = c.Send(&v1_21_8.PlayToClientPacketKickDisconnect{Reason: nbt.Anon{Value: reason.ToNBT()}})
+	}
+	return
+}