using Sandbox.Npcs.Tasks;

namespace Sandbox.Npcs.Schedules;

/// <summary>
/// Walk to an assigned chair and sit. While seated, occasionally make breakfast comments.
/// The schedule runs indefinitely until interrupted (by fleeing).
/// </summary>
public class DinerSitSchedule : ScheduleBase
{
	public GameObject Chair { get; set; }

	/// <summary>
	/// Seconds to stay seated before the schedule ends so the customer can re-evaluate
	/// (and possibly get up to wander). Set by DinerNpc. 0 or less = sit indefinitely until
	/// interrupted, which is the original behaviour.
	/// Note: the timer starts when the schedule begins, so it includes the short walk to the
	/// chair — close enough for ambient pacing without extra plumbing.
	/// </summary>
	public float MaxSeatedTime { get; set; } = 0f;

	private TimeSince _timeSinceStart;

	private static readonly string[] SittingLines =
	[
		"Mmm, eggs.",
		"Lovely morning.",
		"*sips coffee*",
		"Beautiful day for breakfast.",
		"I could eat here every day.",
		"The service is excellent.",
		"*contentedly chews*",
		"Simply divine.",
		"Nothing like a full English.",
		"I love this place.",
	];

	protected override void OnStart()
	{
		_timeSinceStart = 0f;

		if ( !Chair.IsValid() ) return;

		// Walk to the chair
		AddTask( new MoveTo( Chair, stopDistance: 20f ) );

		// Sit animation — we lower speed to zero and trigger the sit pose
		AddTask( new SitDown( Chair ) );

		// Idle in the seat with occasional comments
		AddTask( new SeatIdle( SittingLines, minWait: 4f, maxWait: 10f, commentChance: 0.4f ) );
	}

	// Get up after a while so the customer re-evaluates (SeatIdle never ends on its own).
	// MaxSeatedTime <= 0 keeps the original "sit until scared" behaviour.
	protected override bool ShouldCancel()
	{
		return MaxSeatedTime > 0f && _timeSinceStart > MaxSeatedTime;
	}

	// The seated pose is entered by SitDown and held through SeatIdle; we clear it here, when
	// the schedule actually ends (timeout, scare, death), so the diner properly stands up.
	protected override void OnEnd()
	{
		Npc.Renderer?.Set( "b_sit", false );
		Npc.Navigation.WishSpeed = 100f;
	}
}