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153
BotPages.Core/Messaging/MessageBuilder.cs
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153
BotPages.Core/Messaging/MessageBuilder.cs
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using BotPages.Core.Abstractions;
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namespace BotPages.Core.Messaging;
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/// <summary>
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/// Fluent‑билдер для отправки сообщений (текст, кнопки, файлы, альбомы, прогресс).
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/// </summary>
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public sealed class MessageBuilder
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{
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private readonly PageContext _ctx;
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private string? _text = null;
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private MessageFormat _format = MessageFormat.Plain;
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private readonly List<List<InlineButton>> _inline = new();
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private readonly List<List<ReplyButton>> _reply = new();
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private readonly List<(FileDescriptor file, string? caption)> _files = new();
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private readonly List<(FileDescriptor file, string? caption)> _album = new();
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private string? _progressTitle = null;
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private int? _progressPercent = null;
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private string? _progressMessageId = null;
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/// <summary>Создать билдер сообщений.</summary>
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public MessageBuilder(PageContext ctx) => _ctx = ctx;
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/// <summary>Текст сообщения.</summary>
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public MessageBuilder Text(string text, MessageFormat format = MessageFormat.Plain)
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{
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_text = text;
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_format = format;
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return this;
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}
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/// <summary>Добавить inline‑кнопку.</summary>
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public MessageBuilder Inline(string label, string value)
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{
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_inline.Add(new() { new(label, value) });
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return this;
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}
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/// <summary>Добавить inline‑кнопку.</summary>
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public MessageBuilder Inline(InlineButton button)
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{
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_inline.Add(new() { button });
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return this;
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}
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/// <summary>Добавить inline‑кнопку.</summary>
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public MessageBuilder Inline(params InlineButton[] buttons)
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{
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_inline.Add(buttons.ToList());
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return this;
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}
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/// <summary>Добавить строку inline‑кнопок.</summary>
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public MessageBuilder Inline(IEnumerable<InlineButton> row)
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{
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_inline.Add(row.ToList());
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return this;
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}
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/// <summary>Добавить строку inline‑кнопок.</summary>
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public MessageBuilder Inline(IEnumerable<IEnumerable<InlineButton>> row)
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{
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_inline.AddRange(row.Select(t => t.ToList()).ToList());
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return this;
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}
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/// <summary>Добавить reply‑кнопку.</summary>
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public MessageBuilder Reply(params ReplyButton[] label)
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{
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_reply.Add(label.ToList());
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return this;
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}
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/// <summary>Добавить строку reply‑кнопок.</summary>
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public MessageBuilder Reply(IEnumerable<ReplyButton> row)
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{
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_reply.Add(row.ToList());
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return this;
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}
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/// <summary>Добавить строку reply‑кнопок.</summary>
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public MessageBuilder Reply(IEnumerable<IEnumerable<ReplyButton>> row)
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{
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_reply.AddRange(row.Select(t => t.ToList()).ToList());
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return this;
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}
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/// <summary>Добавить файл для отправки.</summary>
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public MessageBuilder File(FileDescriptor file, string? caption = null)
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{
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_files.Add((file, caption));
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return this;
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}
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/// <summary>Добавить файл в альбом.</summary>
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public MessageBuilder Album(FileDescriptor file, string? caption = null)
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{
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_album.Add((file, caption));
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return this;
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}
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/// <summary>Установить прогресс операции.</summary>
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public MessageBuilder Progress(string title, int percent = 0)
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{
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_progressTitle = title;
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_progressPercent = percent;
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return this;
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}
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/// <summary>Отправить собранное сообщение.</summary>
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public async Task SendAsync(CancellationToken ct = default)
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{
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// Текст
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if (!string.IsNullOrWhiteSpace(_text))
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{
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await _ctx.SendTextAsync(_text, _format, _inline, _reply, ct);
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}
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// Файлы
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foreach (var (file, caption) in _files)
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await _ctx.SendFileAsync(file, caption, ct);
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// Альбом
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if (_album.Count > 0)
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{
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var builder = _ctx.Albums;
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foreach (var (file, caption) in _album)
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builder.Add(file, caption);
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await builder.SendAsync(ct);
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}
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// Прогресс
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if (_progressTitle is not null)
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{
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if (_progressMessageId is null)
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_progressMessageId = await _ctx.StartProgressAsync(_progressTitle, ct);
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if (_progressPercent > 0 && !string.IsNullOrEmpty(_progressMessageId))
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await _ctx.UpdateProgressAsync(_progressMessageId, _progressPercent.Value, ct);
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}
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_text = null;
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_files.Clear();
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_album.Clear();
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if (_progressPercent >= 100)
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{
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_progressTitle = null;
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_progressMessageId = null;
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_progressPercent = null;
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}
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}
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}
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