package zet

import (
	"fmt"
	"log"
	"os"
	"os/exec"
	"path"
	"strconv"
	"strings"

	"code.oliverdavies.uk/opdavies/cmd-zet/internal/config"
	"code.oliverdavies.uk/opdavies/cmd-zet/internal/file"
)

func CreateZet(title string) {
	zid := newZid()

	path := path.Join(config.GetZetDir(), strconv.Itoa(zid))

	os.Mkdir(path, 0750)

	filePath := fmt.Sprintf("%s/index.adoc", path)

	f, err := os.Create(filePath)

	if err != nil {
		log.Fatal(err)
	}

	defer f.Close()

	_, err = fmt.Fprintf(f, "= %s", title)

	if err != nil {
		log.Fatal(err)
	}

	file.Edit(filePath)

	onSave(zid)
}

func newZid() int {
	cmd := exec.Command("ls", config.GetZetDir())
	output, _ := cmd.CombinedOutput()

	zets := strings.Split(string(output), "\n")

	var zetCount int

	for _, zet := range zets {
		num, err := strconv.Atoi(zet)
		if err == nil && num > zetCount {
			zetCount = num
		}
	}

	return zetCount + 1
}