From 4fba091d4d23a38b901e6345a4330aed79c02ea8 Mon Sep 17 00:00:00 2001
From: qowevisa <qowevisa@gmail.com>
Date: Wed, 1 May 2024 17:20:27 +0300
Subject: [PATCH] Add communication package

---
 communication/protocol.go | 55 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 communication/protocol.go

diff --git a/communication/protocol.go b/communication/protocol.go
new file mode 100644
index 0000000..7de91ff
--- /dev/null
+++ b/communication/protocol.go
@@ -0,0 +1,55 @@
+package communication
+
+import (
+	"bytes"
+	"encoding/gob"
+)
+
+const (
+	SERVER_COMMAND = 1 + iota
+	CLIENT_RESPONSE
+	P2P_MESSAGE
+)
+
+const (
+	V1 = 1 + iota
+)
+
+const (
+	NICKNAME = 1
+)
+
+type communicationMessage struct {
+	Type uint8
+	Data []byte
+}
+
+func AskClientNickname() ([]byte, error) {
+	c := communicationMessage{
+		Type: SERVER_COMMAND,
+		Data: []byte{NICKNAME},
+	}
+	return c.Bytes()
+}
+
+func (c *communicationMessage) Bytes() ([]byte, error) {
+	var buf bytes.Buffer
+	encoder := gob.NewEncoder(&buf)
+	err := encoder.Encode(c)
+	if err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+func Decode(serverBytes []byte) (*communicationMessage, error) {
+	var c communicationMessage
+	buf := bytes.NewBuffer(serverBytes)
+	decoder := gob.NewDecoder(buf)
+	err := decoder.Decode(&c)
+	if err != nil {
+		return nil, err
+	}
+
+	return &c, nil
+}