using BotPages.Core;
using BotPages.Core.Abstractions;
using BotPages.Core.Messaging;
using BotPages.Core.Routing;

namespace Demo.Pages;

/// <summary>
/// Стартовая страница демо‑бота.
/// </summary>
[Route("Welcome")]
public sealed class WelcomePage : SingletonPage
{
    public override async Task OnEnter(PageContext ctx, CancellationToken ct)
    {
        await ctx.ClearStorageAsync(ct);

        await new MessageBuilder(ctx)
            .Text("Добро пожаловать! 🚀")
            .Reply(WelcomePageButtons.CreateRequest)
            .Reply(WelcomePageButtons.Help)
            .Reply(WelcomePageButtons.SendFile)
            .SendAsync(ct);
    }

    public override Task OnText(PageContext ctx, string text, CancellationToken ct)
    {
        var button = ButtonExtensions.FromButtonLabel<WelcomePageButtons>(text);

        switch (button)
        {
            case WelcomePageButtons.CreateRequest:
                return ctx.Navigation.GoToAsync<TitlePage>(ctx, ct);

            case WelcomePageButtons.Help:
                return new MessageBuilder(ctx).Text("Здесь будет справка.", MessageFormat.Plain).Style(MessageStyle.Success).SendAsync(ct);

            case WelcomePageButtons.SendFile:
                return ctx.Navigation.GoToAsync<FileSendPage>(ctx, ct);
        }

        return base.OnText(ctx, text, ct);
    }
}

public enum WelcomePageButtons
{
    [Button("Создать заявку")]
    CreateRequest,

    [Button("Помощь")]
    Help,

    [Button("Отправка файла")]
    SendFile,
}