package zet

import (
	"bufio"
	"fmt"
	"os"
	"path"
	"strconv"
	"strings"

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

func getTitle(id int) string {
	return getTitleFromFile(path.Join(strconv.Itoa(id), "index.adoc"))
}

func getTitleFromFile(filePath string) string {
	filePath = path.Join(config.GetZetDir(), filePath)

	file, err := os.Open(filePath)

	if err != nil {
		fmt.Println("Error opening file:", err)

		return ""
	}

	defer file.Close()

	scanner := bufio.NewScanner(file)

	if scanner.Scan() {
		text := scanner.Text()

		return strings.TrimPrefix(text, "= ")
	}

	if err := scanner.Err(); err != nil {
		fmt.Println("Error reading file:", err)
	}

	return ""
}

func onSave(id int) {
	title := getTitle(id)

	git.CommitZettel(id, title)

	// TODO: Or delete the file if empty.
}