using System;
using System.Collections.Generic;

namespace IdleSpectator;

public sealed class StatusInterestEntry
{
    public string Id = "";
    public float EventStrength = 40f;
    public string Category = "Status";
    public bool CreatesInterest;
    public bool ExtendsGrief;
    public bool IsFallback;
}

/// <summary>Status interest dials from <c>event-catalog.json</c> <c>status</c>.</summary>
public static partial class EventCatalog
{
    public static class Status
    {
        private static readonly Dictionary<string, StatusInterestEntry> Entries =
            new Dictionary<string, StatusInterestEntry>(StringComparer.OrdinalIgnoreCase);

        private static int _appliedGeneration = -1;

        public static void InvalidateOverlays()
        {
            Entries.Clear();
            _appliedGeneration = -1;
        }

        private static void Ensure()
        {
            if (_appliedGeneration == EventCatalogConfig.Generation)
            {
                return;
            }

            _appliedGeneration = EventCatalogConfig.Generation;
            EventCatalogConfig.FillStatus(Entries);
        }

        public static IEnumerable<string> AuthoredIds
        {
            get
            {
                Ensure();
                return Entries.Keys;
            }
        }

        public static bool HasAuthored(string statusId)
        {
            Ensure();
            return !string.IsNullOrEmpty(statusId) && Entries.ContainsKey(statusId.Trim());
        }

        public static bool TryGet(string statusId, out StatusInterestEntry entry)
        {
            Ensure();
            entry = null;
            if (string.IsNullOrEmpty(statusId))
            {
                return false;
            }

            return Entries.TryGetValue(statusId.Trim(), out entry);
        }

        public static StatusInterestEntry GetOrFallback(string statusId)
        {
            if (TryGet(statusId, out StatusInterestEntry entry))
            {
                return entry;
            }

            string id = string.IsNullOrEmpty(statusId) ? "unknown" : statusId.Trim();
            return new StatusInterestEntry
            {
                Id = id,
                EventStrength = 40f,
                Category = "Status",
                CreatesInterest = false,
                IsFallback = true
            };
        }
    }
}