using BotPages.Core;
using BotPages.Core.Messaging;
using System.Xml;

namespace Demo.Pages;

/// <summary>
/// Страница ввода деталей заявки.
/// Страница с параметрами и получением состояния.
/// </summary>
public sealed class DetailsPage : StatefullPage<DetailsArgs>
{
    [Statefull("Request")]
    private Models.Request Request;

    public override Task OnEnter(PageContext ctx, DetailsArgs args, CancellationToken ct)
    {
        Request = new()
        {
            Title = args.Title,
        };

        return new MessageBuilder(ctx)
            .Text($"Заголовок: {args.Title}\nДобавьте детали или нажмите Далее.")
            .Inline(new InlineButton("Далее", "next"), new InlineButton("Назад", "back"))
            .Reply("Отмена")
            .SendAsync(ct);
    }

    public override async Task OnButton(PageContext ctx, string payload, CancellationToken ct)
    {
        switch (payload)
        {
            case "next":
                {
                    await SaveState(ctx, ct);
                    await ctx.Navigation.GoToAsync<FilesPage>(ctx, ct);
                    break;
                }

            case "back": 
                {
                    await ctx.Navigation.GoToAsync<TitlePage>(ctx, ct);
                    break;
                }
        };
    }

    public override async Task OnText(PageContext ctx, string text, CancellationToken ct)
    {
        Request.Details = text;
        await SaveState(ctx, ct);
        await ctx.Navigation.GoToAsync<FilesPage>(ctx, ct);
    }
}

/// <summary>
/// Аргументы для страницы DetailsPage.
/// </summary>
public sealed class DetailsArgs
{
    public string Title { get; set; } = "";
}