using System.Net;
using Manager.YouTube;
using Microsoft.AspNetCore.Components;
using MudBlazor;

namespace Manager.App.Components.Dialogs
{
    public partial class AccountDialog : ComponentBase
    {
        [CascadingParameter] private IMudDialogInstance? MudDialog { get; set; }
        [Parameter] public string DefaultUserAgent { get; set; } = "";
        
        public YouTubeClient Client { get; set; } = new();

        private bool _isLoading;

        private bool _showCookieTextImport;
        private string _cookieText = "";
        private string _cookieDomain = ".youtube.com";

        protected override void OnInitialized()
        {
            Client.UserAgent = DefaultUserAgent;
            base.OnInitialized();
        }

        private void AddCookie()
        {
            Client.CookieContainer.Add(new Cookie { Name = "SET_NAME", Domain = ".youtube.com" });
        }
        
        private async Task RemoveCookie(Cookie? cookie)
        {
            if (cookie == null)
            {
                return;
            }

            cookie.Expired = true;
            await InvokeAsync(StateHasChanged);
        }
        
        private void ToggleCookieTextImport()
        {
            _showCookieTextImport =! _showCookieTextImport;
        }
        
        private void ApplyTextCookies()
        {
            _showCookieTextImport = false;
            var cookies = ParseCookieHeader(_cookieText, _cookieDomain);
            Client.CookieContainer.Add(cookies);
            _cookieText = string.Empty;
            StateHasChanged();
        }
        
        public static CookieCollection ParseCookieHeader(string cookieHeader, string domain = "")
        {
            var collection = new CookieCollection();

            if (string.IsNullOrWhiteSpace(cookieHeader))
                return collection;

            var cookies = cookieHeader.Split(';', StringSplitOptions.RemoveEmptyEntries);

            foreach (var cookieStr in cookies)
            {
                var parts = cookieStr.Split('=', 2);
                if (parts.Length == 2)
                {
                    var name = parts[0].Trim();
                    var value = parts[1].Trim();

                    // Escape invalid characters
                    var safeName = Uri.EscapeDataString(name);
                    var safeValue = Uri.EscapeDataString(value);

                    var cookie = new Cookie(safeName, safeValue);

                    if (!string.IsNullOrEmpty(domain))
                        cookie.Domain = domain;

                    collection.Add(cookie);
                }
            }

            return collection;
        }

        private bool CanValidate()
        {
            if (string.IsNullOrWhiteSpace(Client.UserAgent) || Client.CookieContainer.Count <= 0)
            {
                return false;
            }

            return true;
        }

        private bool CanSave()
        {
            return Client.ClientState is { LoggedIn: true };
        }

        private async Task ValidateAccount()
        {
            _isLoading = true;
            await Client.GetStateAsync();
            _isLoading = false;
        }
        
        private void OnSave()
        {
            MudDialog?.Close(DialogResult.Ok(Client));
        }
    }
}