namespace Password_Manager
{
    public delegate void ProfileChange(string profileName); //Fires when we want to change the CurrentProfile field of ProfileHandler based on the combobox selection
    public delegate string[] ProfileList(); //Fires when we need a list of Profile names, like for the combobox items
    public delegate void Save(); //Fire whenever we want to save the current state of profiles
    public delegate void NewProfile(string profileName, string profilePath); //Fires whenever a NewProfileForm has requested the creation of a new profile. This just forwards that request to ProfileHandler

    public abstract class PasswordManagerForm : Form
    {
        protected abstract ComboBox ProfileSelection { get; }
        protected abstract PasswordListBox ResultList { get; }
        protected abstract TextBox SearchBox { get; }
        protected abstract Button AddProfile { get; }
        protected abstract Button DeleteProfile { get; }
        protected abstract Button GeneratePassword { get; }

        public abstract event ProfileDataRequest CurrentProfilePathRequest;
        public abstract event ProfileDataRequest CurrentProfileNameRequest;
        public abstract event ProfileList CurrentProfileListRequest;
        public abstract event ProfileChange CurrentProfileChanged;
        public abstract event Save SaveRequest;
        public abstract event NewProfile NewProfileRequest;

        public PasswordManagerForm(
            ProfileDataRequest CurrentProfileNameRequest,
            ProfileDataRequest CurrentProfilePathRequest,
            ProfileList CurrentProfileListRequest,
            ProfileChange CurrentProfileChanged,
            Save SaveRequest,
            NewProfile NewProfileRequest)
        {
            this.CurrentProfileNameRequest = CurrentProfileNameRequest;
            this.CurrentProfilePathRequest = CurrentProfilePathRequest;
            this.CurrentProfileListRequest = CurrentProfileListRequest;
            this.CurrentProfileChanged = CurrentProfileChanged;
            this.SaveRequest = SaveRequest;
            this.NewProfileRequest = NewProfileRequest;
        }

        protected virtual void ChangeProfile(object sender, EventArgs e)
        {
            CurrentProfileChanged(ProfileSelection.Text);
        }

        public virtual void RefreshCurrentProfile()
        {
            ProfileSelection.SelectedIndex = -1;
            string[] items = CurrentProfileListRequest();
            for (int i = 0; i < items.Length; i++)
            {
                ProfileSelection.Items.Add(items[i]);
                if (items[i] == CurrentProfileNameRequest())
                {
                    ProfileSelection.SelectedIndex = i;
                }
            }
            this.Text = CurrentProfileNameRequest();
            ResultList.ReloadResults();
        }
    }
}