using System;
using System.Threading.Tasks;
using MediaBrowser.Model.Tasks;
using Microsoft.Extensions.Logging;

namespace Emby.Server.Implementations.ScheduledTasks.Triggers;

/// <summary>
/// Class StartupTaskTrigger.
/// </summary>
public sealed class StartupTrigger : ITaskTrigger
{
    private const int DelayMs = 3000;

    /// <summary>
    /// Initializes a new instance of the <see cref="StartupTrigger"/> class.
    /// </summary>
    /// <param name="taskOptions">The options of this task.</param>
    public StartupTrigger(TaskOptions taskOptions)
    {
        TaskOptions = taskOptions;
    }

    /// <inheritdoc />
    public event EventHandler<EventArgs>? Triggered;

    /// <inheritdoc />
    public TaskOptions TaskOptions { get; }

    /// <inheritdoc />
    public async void Start(TaskResult? lastResult, ILogger logger, string taskName, bool isApplicationStartup)
    {
        if (isApplicationStartup)
        {
            await Task.Delay(DelayMs).ConfigureAwait(false);

            OnTriggered();
        }
    }

    /// <inheritdoc />
    public void Stop()
    {
    }

    /// <summary>
    /// Called when [triggered].
    /// </summary>
    private void OnTriggered()
    {
        Triggered?.Invoke(this, EventArgs.Empty);
    }
}