using Justice.Helpers;
using Justice.Models;
using Org.BouncyCastle.Crypto.Generators;
using System;
using BCrypt.Net;

namespace Justice.Views
{
    public partial class LoginPage : ContentPage
    {
        private readonly DatabaseHelper _dbHelper;

        public LoginPage()
        {
            InitializeComponent();
            _dbHelper = new DatabaseHelper();
        }

        private async void OnLoginClicked(object sender, EventArgs e)
        {
            if (string.IsNullOrWhiteSpace(UsernameEntry.Text) || string.IsNullOrWhiteSpace(PasswordEntry.Text))
            {
                await DisplayAlert("Error", "Username and password are required.", "OK");
                return;
            }

            try
            {
                var user = await _dbHelper.FindAsync<User>("SELECT * FROM User WHERE Username = ?", UsernameEntry.Text.Trim());

                if (user == null || !BCrypt.Net.BCrypt.Verify(PasswordEntry.Text.Trim(), user.Password))
                {
                    await DisplayAlert("Error", "Invalid username or password.", "OK");
                    return;
                }

                await DisplayAlert("Success", $"Welcome {user.Username}!", "OK");

                // Navigate based on role
                if (user.Role == "EndUser")
                {
                    await Navigation.PushAsync(new DashboardPage());
                }
                else if (user.Role == "AuthorityUser")
                {
                    await Navigation.PushAsync(new AuthorityDashboardPage());
                }
            }
            catch (Exception ex)
            {
                await DisplayAlert("Error", $"Failed to login: {ex.Message}", "OK");
            }
        }
    }
}