FieldLogApp.cs

using System;
using System.Collections.Generic;
using System.Linq;
using CitizenFX.Core;
using CitizenFX.Core.Native;
using FivePRS.Client.Terminal;
using FivePRS.Core.Models;

namespace ExampleApps
{
    public class FieldLogApp : TerminalApp
    {
        private const int MaxEntries = 50;
        private const int MaxNoteLength = 200;

        private readonly List<Dictionary<string, object>> _entries = new();

        public override string  Id    => "fieldlog";
        public override string  Label => "Field Log";
        public override string  Color => "#0d9488";
        public override string  Icon  => "M4 20h16 M6 16l9-9 3 3-9 9H6z";
        public override int     Order => 710;
        public override string? Page  => "apps/fieldlog/index.html";
        public override string? Badge => _entries.Count > 0 ? _entries.Count.ToString() : null;

        public override bool IsAvailable(PlayerData player) => player.IsOnDuty;

        public override void OnOpened() => Send("entries", _entries);

        public override void OnAction(string action, IDictionary<string, object> data)
        {
            switch (action)
            {
                case "add":
                    var note = data.TryGetValue("note", out var value) ? Convert.ToString(value)?.Trim() ?? string.Empty : string.Empty;
                    if (note.Length == 0) return;

                    _entries.Insert(0, new Dictionary<string, object>
                    {
                        ["time"]     = DateTime.Now.ToString("HH:mm"),
                        ["location"] = CurrentLocation(),
                        ["note"]     = note.Length > MaxNoteLength ? note.Substring(0, MaxNoteLength) : note,
                    });

                    if (_entries.Count > MaxEntries) _entries.RemoveAt(_entries.Count - 1);
                    break;

                case "clear":
                    _entries.Clear();
                    break;

                default:
                    return;
            }

            Refresh();
            Send("entries", _entries);
        }

        private static string CurrentLocation()
        {
            var position = Game.PlayerPed.Position;
            uint street = 0, crossing = 0;
            API.GetStreetNameAtCoord(position.X, position.Y, position.Z, ref street, ref crossing);

            var zone = API.GetLabelText(API.GetNameOfZone(position.X, position.Y, position.Z));
            var parts = new[] { API.GetStreetNameFromHashKey(street), zone }.Where(part => !string.IsNullOrEmpty(part) && part != "NULL");
            return string.Join(", ", parts);
        }
    }
}