package helper

import (
	"gopkg.in/yaml.v3"
	"os"
	"path/filepath"
	"strings"

	ChronoTomato "git.smsvc.net/pomodoro/ChronoTomato/pkg/models"
)

// Expands the "~" in a passed filename
func expandUnixPath(filename string) string {
	if strings.HasPrefix(filename, "~/") {
		dirname, _ := os.UserHomeDir()
		filename = filepath.Join(dirname, filename[2:])
	}

	return filename
}

// Checks if the passed file exists
func FileExists(filename string) bool {
	_, err := os.Stat(expandUnixPath(filename))

	return !os.IsNotExist(err)
}

// Parses the ChronoTomato config in the passed config file
func ParseConfig(filename string) ChronoTomato.Config {
	var config ChronoTomato.Config

	yamlFile, err := os.ReadFile(expandUnixPath(filename))
	if err != nil {
		Logger.Fatal("Error opening config file!", "reason", err)
	}

	err = yaml.Unmarshal(yamlFile, &config)
	if err != nil {
		Logger.Fatalf("Unmarshal: %v", err)
	}

	return config
}