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2025-12-05 12:57:05 +03:00
parent ee175a35a0
commit d817417a69
81 changed files with 2335 additions and 1453 deletions

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namespace BotPages.Core.Routing;
using System.Text.RegularExpressions;
/// <summary>
/// Реестр команд, доступных из любого места.
/// </summary>
internal sealed class CommandsRegistry
{
private readonly List<(Regex pattern, Func<PageContext, CancellationToken, Task> handler)> _commands = new();
/// <summary>
/// Зарегистрировать команду, ведущую на страницу.
/// </summary>
public CommandsRegistry Map<TPage>(string commandTemplate) where TPage : Page
{
var pattern = ToRegex(commandTemplate);
_commands.Add((pattern, (ctx, ct) => ctx.Navigation.GoToAsync<TPage>(ctx, ct)));
return this;
}
/// <summary>
/// Зарегистрировать команду с кастомным обработчиком.
/// </summary>
public CommandsRegistry Map(string commandTemplate, Func<PageContext, CancellationToken, Task> handler)
{
var pattern = ToRegex(commandTemplate);
_commands.Add((pattern, handler));
return this;
}
/// <summary>
/// Попробовать выполнить команду.
/// </summary>
public bool TryDispatch(PageContext ctx, string command, CancellationToken ct, out Task? task)
{
foreach (var (pattern, handler) in _commands)
{
if (pattern.IsMatch(command))
{
task = handler(ctx, ct);
return true;
}
}
task = null;
return false;
}
private static Regex ToRegex(string template)
{
// Простейшее преобразование шаблона: "/open {page} {id?}" -> Regex
var escaped = Regex.Escape(template)
.Replace("\\{", "{").Replace("\\}", "}");
var pattern = "^" + escaped
.Replace("{page}", "(?<page>\\S+)")
.Replace("{id?}", "(?<id>\\S+)?") + "$";
return new Regex(pattern, RegexOptions.Compiled | RegexOptions.IgnoreCase);
}
}