package main

import (
	"errors"
	"log"
	"os"
	"runtime"
	"strconv"

	"github.com/alyu/configparser"
)

// str2int
func str2int(strnum string) int {
	i, err := strconv.Atoi(strnum)
	if err != nil {
		return 9999
	}
	return i
}

func configStat(configFile string) string {
	xdgConfigPath := os.Getenv("XDG_CONFIG_HOME")
	if xdgConfigPath == "" {
		if runtime.GOOS == "windows" {
			xdgConfigPath = os.Getenv("USERPROFILE") + "\\.config"
		} else {
			xdgConfigPath = os.Getenv("HOME") + "/.config"
		}
	}

	if runtime.GOOS == "windows" {
		configFile = xdgConfigPath + "\\gostations\\" + configFile
	} else {
		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.")
		errs := createIniFile(configFile)
		for _, err := range errs {
			if err != nil {
				log.Printf("Erorr: %s", err.Error())
				log.Fatal("Cannot continue.")
			}
		}
	}
	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)
}