Playa/hosts/Volcanic.AgenticCore.Telegram/Scheduling/SchedulerSetup.cs

using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Telegram.Bot.Types;
using Volcanic.AgenticCore.Extensions.Scheduler;

namespace Volcanic.AgenticCore.Telegram.Scheduling;

/// <summary>Everything the Telegram host does for the scheduler, kept out of the shared host files.</summary>
public static class SchedulerSetup
{
    public const string DisabledReply = "Scheduling is turned off on this bot (Scheduler:Enabled).";

    public const string HelpLines = "\n/jobs – this chat's scheduled prompts and watchers\n/cancel <id> – cancel one of them";

    public static readonly IReadOnlyList<BotCommand> Menu =
    [
        new() { Command = "jobs", Description = "Scheduled prompts and watchers" },
        new() { Command = "cancel", Description = "Cancel a scheduled job: /cancel <id>" },
    ];

    /// <summary>The <c>Scheduler</c> section; an empty <c>StorePath</c> becomes <c>&lt;agentDir&gt;/scheduler/jobs.json</c>.</summary>
    public static SchedulerOptions Options(IConfiguration section, string agentDir)
    {
        var options = section.Get<SchedulerOptions>() ?? new SchedulerOptions();
        if (string.IsNullOrWhiteSpace(options.StorePath)) options.StorePath = SchedulerOptions.DefaultStorePath(agentDir);
        return options;
    }

    /// <summary>Runner, scheduler, delivery and the hosted service (register after <c>PollingService</c>). Only when enabled.</summary>
    public static void Register(IServiceCollection services)
    {
        services.TryAddSingleton(TimeProvider.System);
        services.AddSingleton<IScriptRunner, ScriptRunner>();
        services.AddSingleton<JobScheduler>();
        services.AddSingleton<TelegramJobDelivery>();
        services.AddHostedService<SchedulerHostedService>();
    }
}