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package main // import "hhvn.uk/hbspbar"

import (
	"os"
	"strings"
	"syscall"
	"os/signal"

	"hhvn.uk/hbspbar/common"
	"hhvn.uk/hbspbar/x"
	"hhvn.uk/hbspbar/bar"
	"hhvn.uk/hbspbar/bspc"
)

func main() {
	signals := make(chan os.Signal, 1)
	signal.Notify(signals,
		syscall.SIGINT,
		syscall.SIGHUP,
		syscall.SIGTERM)

	defer bar.Cleanup()
	
	if x.InitErr != nil {
		common.Error("Couldn't initialize X: %s\n", x.InitErr)
		return
	}

	if bspc.InitErr != nil {
		common.Error("Couldn't subscribe to bspwm: %s\n", bspc.InitErr)
		return
	}
	defer bspc.Close()

	bar.Handle.NewState <- bspc.Handle.State
	for _, m := range bspc.Handle.State.Monitors {
		bar.Handle.Create <- m.ID
	}

	for {
		select {
		case s := <- signals:
			common.Error("%s\n", s)
			return
		case err := <- bar.Handle.Err:
			common.Error("%s\n", err)
			return
		case err := <- bspc.Handle.EvErr:
			common.Error("Couldn't read event: %s\n", err)
			return
		case event := <- bspc.Handle.Event:
			if strings.HasPrefix(event.Name, "monitor_") {
				id, err := common.Intify(event.Tokens[0])
				if err == nil {
					switch (event.Name) {
					case "monitor_add":
					case "monitor_geometry":
						bar.Handle.Create <- id
					case "monitor_remove":
						bar.Handle.Destroy <- id
					}
				}
			}
		case err := <- bspc.Handle.StErr:
			common.Error("Couldn't load bspwm state: %s\n", err)
			return
		case <- bspc.Handle.StateUpdate:
			bar.Handle.NewState <- bspc.Handle.State
		}
	}
}