establish GbxClient

main.go

@@ -2,11 +2,16 @@ package main
 
 import (
 	"git.fanyx.xyz/fanyx/goufy/pkg/config"
+	"git.fanyx.xyz/fanyx/goufy/pkg/connection"
 )
 
 func main() {
-	var c config.AppConfig
-	c.ReadConfig()
+	// initiate config
+	var conf config.AppConfig
+	conf.ReadConfig()
+
+	//initiate connection to trackmania server
+	var client connection.GbxClient
+	client.Connect(conf)
 
-	// fmt.Printf("#%v", c)
 }

pkg/config/config.go

@@ -10,8 +10,11 @@ import (
 const CONFIGFILE = "config.yaml"
 
 const DEFAULTCONFIG = `
-host: "127.0.0.1"
-port: 5000
+trackmania:
+  host: "127.0.0.1"
+  port: 5000
+api:
+  port: 5111
 `
 
 type TrackmaniaConfig struct {
@@ -19,17 +22,32 @@ type TrackmaniaConfig struct {
 	Port int
 }
 
+type ApiConfig struct {
+	Port int
+}
+
 type AppConfig struct {
 	Trackmania TrackmaniaConfig
+	Api        ApiConfig
 }
 
 func (c *AppConfig) ReadConfig() {
+	// read default config
+	err := yaml.Unmarshal([]byte(DEFAULTCONFIG), c)
+	if err != nil {
+		log.Fatal(err)
+	}
+	log.Print("Initiated the default config")
+	// open config.yaml
 	yamlFile, err := ioutil.ReadFile(CONFIGFILE)
 	if err != nil {
 		log.Fatal(err)
 	}
+	log.Print("Done reading yaml File")
+	// configure config from config.yaml
 	err = yaml.Unmarshal([]byte(yamlFile), c)
 	if err != nil {
 		log.Fatal(err)
 	}
+	log.Print("Read config from yaml File")
 }

pkg/connection/connection.go

@@ -1,12 +1,37 @@
 package connection
 
-import "net"
+import (
+	"fmt"
+	"log"
+	"net"
+	"strconv"
 
-func connect() {
-	var gbxConnString string
-	conn, err := net.Dial("tcp", gbxConnString)
-	if err != nil {
-		panic(err)
-	}
-	defer conn.Close()
+	"git.fanyx.xyz/fanyx/goufy/pkg/config"
+)
+
+type GbxClient struct {
+	conn      net.Conn
+	reqHandle int
+}
+
+func (client *GbxClient) Connect(c config.AppConfig) {
+	// create connection string from config
+	gbxConnString := c.Trackmania.Host + strconv.FormatInt(int64(c.Trackmania.Port), 10)
+
+	var err error
+	//initiate GbxClient
+	client.conn, err = net.Dial("tcp", gbxConnString)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer client.conn.Close()
+
+	// handshake
+	buf := make([]byte, 4)
+	_, err = client.conn.Read(buf)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Println("read content:", buf)
 }