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

namespace BotPages.Core;

/// <summary>
/// Расширения <see cref="PageContext"/> для работы с адаптером.
/// Упрощают создание универсального `SendRequest`.
/// </summary>
public static class PageContextAdapterExtensions
{
    /// <summary>
    /// Отправить универсальный запрос через привязанный адаптер.
    /// </summary>
    public static Task<string?> SendAsync(this PageContext ctx, SendRequest request, CancellationToken ct = default)
        => ctx.Adapter.SendAsync(request, ct);

    /// <summary>
    /// Удобная оболочка: отправить текстовое сообщение.
    /// </summary>
    public static Task<string?> SendTextAsync(this PageContext ctx,
        string text,
        MessageFormat format = MessageFormat.Plain,
        IEnumerable<IEnumerable<InlineButton>>? inline = null,
        IEnumerable<IEnumerable<ReplyButton>>? reply = null,
        string? messageId = null,
        object? adapterOptions = null,
        CancellationToken ct = default)
    {
        var bag = adapterOptions switch
        {
            null => null,
            AdapterOptionsBag b => b,
            _ => throw new ArgumentException("adapterOptions must be an AdapterOptionsBag or null. Use MessageBuilder extensions to set adapter options.", nameof(adapterOptions))
        };

        return ctx.SendAsync(new SendRequest
        {
            ChatId = ctx.Update.Chat.Id,
            Text = text,
            TextFormat = format,
            Inline = inline,
            Reply = reply,
            MessageId = messageId,
            AdapterOptions = bag
        }, ct);
    }

    /// <summary>
    /// Удобная оболочка: отправить файл.
    /// </summary>
    public static Task<string?> SendFileAsync(this PageContext ctx,
        FileDescriptor file,
        string? caption = null,
        MessageFormat? captionFormat = null,
        IEnumerable<IEnumerable<InlineButton>>? inline = null,
        IEnumerable<IEnumerable<ReplyButton>>? reply = null,
        object? adapterOptions = null,
        CancellationToken ct = default)
    {
        var bag = adapterOptions switch
        {
            null => null,
            AdapterOptionsBag b => b,
            _ => throw new ArgumentException("adapterOptions must be an AdapterOptionsBag or null. Use MessageBuilder extensions to set adapter options.", nameof(adapterOptions))
        };

        return ctx.SendAsync(new SendRequest
        {
            ChatId = ctx.Update.Chat.Id,
            File = file,
            Caption = caption,
            CaptionFormat = captionFormat,
            Inline = inline,
            Reply = reply,
            AdapterOptions = bag
        }, ct);
    }
}