using System.Collections.Generic;
using JetBrains.Annotations;
using Oxide.Core.Plugins;
using ProtoBuf;
using UnityEngine;

namespace Oxide.Plugins;

[Info("Map Markers", "Ilovepatatos", "2.0.2")]
[Description("Removes all your map markers when placing a new one. Useful for admins using the 'teleport2marker' command.")]
public class MapMarkers : RustPlugin
{
    private const string CLEAR_MARKER_PERM = "mapmarkers.clear";
    private const string TELEPORT_TO_MARKER_PERM = "mapmarkers.teleport";

#region Hooks

    [UsedImplicitly]
    [HookMethod(nameof(Init))]
    private void Init()
    {
        permission.RegisterPermission(CLEAR_MARKER_PERM, this);
        permission.RegisterPermission(TELEPORT_TO_MARKER_PERM, this);
    }

    [UsedImplicitly]
    [HookMethod(nameof(OnMapMarkerAdd))]
    private void OnMapMarkerAdd(BasePlayer player, MapNote marker)
    {
        if (player == null)
            return;

        if (permission.UserHasPermission(player.UserIDString, CLEAR_MARKER_PERM))
            ClearMapMarkers(player);

        if (permission.UserHasPermission(player.UserIDString, TELEPORT_TO_MARKER_PERM))
            TeleportToMapMarker(player, marker);
    }

#endregion

#region Methods

    private static void ClearMapMarkers(BasePlayer player)
    {
        List<MapNote> list = player.State?.pointsOfInterest;
        if (list == null) return;

        foreach (MapNote note in list)
            note?.Dispose();

        list.Clear();
    }

    private static void TeleportToMapMarker(BasePlayer player, MapNote marker)
    {
        Vector3 pos = marker.worldPosition;
        pos.y = GetTerrainHeightAt(pos);
        player.Teleport(pos);
    }

#endregion

#region Utility

    private static float GetTerrainHeightAt(Vector3 pos)
    {
        float height = TerrainMeta.HeightMap.GetHeight(pos);
        float water = TerrainMeta.WaterMap.GetHeight(pos);
        return Mathf.Max(height, water);
    }

#endregion
}