package main

import (
	"flag"
	"fmt"
	r "gitnet.fr/deblan/i3-blocks-go/rendering"
	"os"
	"os/exec"
	"strconv"
	"strings"
	"sync"
)

func DiskUsage(path string) int {
	outb, _ := exec.Command("df", "-h", path).Output()
	output := string(outb)
	lines := strings.Split(output, "\n")
	columns := strings.Fields(lines[1])
	value, _ := strconv.Atoi(strings.ReplaceAll(columns[4], "%", ""))

	return value
}

func runFileExplorer(wg *sync.WaitGroup, path string) {
	defer wg.Done()
	command := exec.Command("xdg-open", path)
	command.Run()
}

func main() {
	argBlockName := flag.String("block", "du", "block name")
	argName := flag.String("name", "du", "block name")
	argMountPoint := flag.String("mount-point", "du", "block name")
	argLimitWarning := flag.Int("limit-warning", 70, "limit for warning")
	argLimitDanger := flag.Int("limit-danger", 90, "limit for danger")
	flag.Parse()

	used := DiskUsage(*argMountPoint)
	fbUsed := r.FB{Background: r.Color("black1")}

	var wg sync.WaitGroup

	if os.Getenv("BLOCK_BUTTON") == "1" {
		wg.Add(1)
		go runFileExplorer(&wg, fmt.Sprintf("file://%s", *argMountPoint))
	}

	if used < *argLimitWarning {
		fbUsed.Foreground = r.Color("green")
	} else if used < *argLimitDanger {
		fbUsed.Foreground = r.Color("orange")
	} else {
		fbUsed.Foreground = r.Color("red")
	}

	label := r.TextWithPadding(
		*argName,
		r.FB{
			Foreground: r.Color("grey1"),
			Background: r.Color("black2"),
		},
	)

	value := r.TextWithPadding(fmt.Sprintf("%d%%", used), fbUsed)

	options := r.NewBlockOptions()
	options.FullText = fmt.Sprintf("%s%s", label, value)
	block := r.Block(*argBlockName, options)

	fmt.Println(block)
	wg.Wait()
}