using Password_Manager;
using Microsoft.VisualBasic.FileIO;

namespace Profiles
{
    static class ProfileHandler
    {
        public static Profile CurrentProfile;
        public static ProfileList ListOfProfiles;
        private static string filePath = SpecialDirectories.CurrentUserApplicationData + "Profiles.csv";

        public static void ChangeProfiles(string profileName)
        {
            CurrentProfile = ListOfProfiles.SearchByName(profileName);
        }

        public static void Init()
        {
            ListOfProfiles = new ProfileList();

            if (File.Exists(filePath))
            {
                LoadProfiles();
            }
            else
            {
                CreateProfiles();
            }
        }
        private static void LoadProfiles()
        {
            try
            {
                StreamReader sr = new StreamReader(filePath);
                string[] lines = sr.ReadToEnd().Split("\n");
                foreach (string line in lines)
                {
                    string[] fields = line.Split(',');
                    try
                    {
                        ListOfProfiles.Add(new Profile(fields[0], fields[1]));
                    } catch (IndexOutOfRangeException)
                    {
                        //File is messed up, creating new one
                        sr.Close();
                        CreateProfiles();
                        break;
                    }
                }
                sr.Close();
            } catch (IOException e)
            {
                MessageBox.Show(e.ToString(), "IO Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private static void TrimLastLine()
        {
            List<string> lines = File.ReadAllLines(filePath).ToList();
            File.WriteAllLines(filePath, lines.GetRange(0, lines.Count - 1).ToArray());
        }

        private static void CreateProfiles()
        {
            try
            {
                StreamWriter sw = new StreamWriter(filePath);

                string[] parameters = new string[2];

                NewProfileForm np = new NewProfileForm();
                Profile firstProfile = null;
                np.NewProfileRequest += (string profileName, string profilePath) =>
                {
                    firstProfile = new Profile(profileName, profilePath);
                    ListOfProfiles.Add(firstProfile);
                    ChangeProfiles(firstProfile.Name);
                    sw.WriteLine($"{firstProfile.Name},{firstProfile.Path}");
                    sw.Close();
                    TrimLastLine();
                };
                np.ShowDialog();
            } catch (IOException e)
            {
                MessageBox.Show(e.ToString(), "IO Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }
}