package main

import (
	"errors"
	"fmt"
	"log"
	"os"
	"strconv"

	"github.com/alyu/configparser"
)

func str2int(strnum string) int {
	i, err := strconv.Atoi(strnum)
	if err != nil {
		fmt.Println(err)
		os.Exit(2)
	}
	return i
}

func configStat(configFile string) string{
	xdgConfigPath := os.Getenv("XDG_CONFIG_HOME")
	if xdgConfigPath == "" {
		xdgConfigPath = os.Getenv("HOME")+"/.config"
	}
	configFile = xdgConfigPath + "/gostations/" + configFile

	if _, err := os.Stat(configFile); errors.Is(err, os.ErrNotExist) {
		log.Printf("Your stations config file seems to be missing. A default will be generated.")
		err = createIniFile(configFile)
		if err != nil {
			log.Printf("Erorr creating ini file...")
			log.Fatal(err.Error())
		}
	}
	return configFile
}

func Config(option string) (string, error) {
	configparser.Delimiter = "="
	configFile := configStat("radiostations.ini")

	runtimeSection := "DEFAULT"

	config, err := configparser.Read(configFile)
	if err != nil {
		log.Fatal(err)
	}

	section, err := config.Section(runtimeSection)
	if err != nil {
		log.Fatal(err)
	}

	optval := section.Options()[option]
	if optval == "" {
		return "", errors.New("no value for option '%s'")
	}
	return optval, nil
}

func api() string {
	url, _ := Config("radio_browser.api")
	return url
}

func player() string {
	player, _ := Config("player.command")
	return player
}

func options() string {
	options, _ := Config("player.options")
	return options
}

func maxitems() int {
	items, _ := Config("menu_items.max")
	return str2int(items)
}