stuff

serverwrapper.go

@@ -1,12 +1,118 @@
 package main
 
 import (
+	"bufio"
 	"fmt"
+	"io"
+	"log"
+
+	//	"math"
+	"container/ring"
+	"os/exec"
+
+	"github.com/jroimartin/gocui"
 	"github.com/pelletier/go-toml"
 )
 
-func main() {
-	config, _ := toml.LoadFile("serverwrapper.toml")
-	str, _ := config.ToTomlString()
-	fmt.Println(str)
+var settings *toml.Tree
+var stdout_ring *ring.Ring
+var srv_stdin io.WriteCloser
+
+// reload settings (and maybe other things too)
+func reload() {
+	settings, _ = toml.LoadFile("serverwrapper.toml")
 }
+
+//builds the cmd which is called to run the server
+func build_cmd() (string, string) {
+	return "ping", "-t 8.8.8.8"
+}
+
+//run the server-thread
+func server_run() {
+	//create the command and start it
+	cmd_str, cmd_args := build_cmd()
+	cmd := exec.Command(cmd_str, cmd_args)
+	err := cmd.Start()
+	if err != nil {
+		log.Panicln("Failed to call server command \"" + cmd.String() + "\"")
+	}
+
+	//connect pipes
+	stdout, err := cmd.StdoutPipe()
+	cmd.Stderr = cmd.Stdout
+	srv_stdin, err = cmd.StdinPipe() //this one is global, because we write to it elsewhere
+
+	//read pipes and write them to the ring buffer
+	buf := bufio.NewReader(stdout)
+	for {
+		stdout_ring.Value, _, err = buf.ReadLine()
+		stdout_ring = stdout_ring.Next()
+	}
+
+}
+
+//refresh the screen
+func refresh(g *gocui.Gui) error {
+	v, err := g.View("srv_log")
+	if err != nil {
+		log.Panicln(err)
+	}
+	v.Clear()
+
+	vW, vH := v.Size()
+
+	r := stdout_ring
+
+	for i := 0; i < vH; i++ {
+		fmt.Fprintln(v, r.Value)
+		r = r.Prev()
+	}
+
+	return nil
+}
+
+func main() {
+	//initialize settings by "re"loading them from disk
+	reload()
+
+	//initialize the stdout/err ringbuffer
+	stdout_ring = ring.New(255)
+
+	//init the CUI
+	g, err := gocui.NewGui(gocui.OutputNormal)
+	if err != nil {
+		log.Panicln(err)
+	}
+	defer g.Close()
+
+	g.SetManagerFunc(layout)
+
+	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
+		log.Panicln(err)
+	}
+
+	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
+		log.Panicln(err)
+	}
+}
+
+//create the CUI layout
+func layout(g *gocui.Gui) error {
+	maxX, maxY := g.Size()
+
+	if v, err := g.SetView("srv_log", 0, 0, maxX-1, int(float32(maxY) * 0.8)); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+
+		str, _ := settings.ToTomlString();
+		fmt.Fprintln(v, str)
+	}
+
+	return nil
+}
+
+func quit(g *gocui.Gui, v *gocui.View) error {
+	return gocui.ErrQuit
+}