using System;
using System.Collections.Generic;

namespace IdleSpectator;

/// <summary>
/// Live-seeded interest catalogs: every live library id is authored (Ambient default),
/// with curated Signal overlays for spectacle / kingdom-affecting entries.
/// </summary>
public static class LiveLibraryInterest
{
    public static void EnsureSeeded(
        Dictionary<string, DiscreteEventEntry> entries,
        Func<List<string>> enumerateLive,
        string category,
        string labelTemplate,
        float ambientStrength,
        HashSet<string> signalIds,
        float signalStrength,
        Func<string, bool> signalPredicate = null,
        bool ambientCreatesInterest = true)
    {
        if (entries == null || enumerateLive == null)
        {
            return;
        }

        List<string> live;
        try
        {
            live = enumerateLive() ?? new List<string>();
        }
        catch
        {
            live = new List<string>();
        }

        for (int i = 0; i < live.Count; i++)
        {
            string id = live[i];
            if (string.IsNullOrEmpty(id) || entries.ContainsKey(id))
            {
                continue;
            }

            bool signal = (signalIds != null && signalIds.Contains(id))
                          || (signalPredicate != null && signalPredicate(id));
            entries[id] = new DiscreteEventEntry
            {
                Id = id,
                EventStrength = signal ? signalStrength : ambientStrength,
                Category = category,
                CreatesInterest = signal || ambientCreatesInterest,
                LabelTemplate = labelTemplate
            };
        }
    }

    public static DiscreteEventEntry Lookup(
        Dictionary<string, DiscreteEventEntry> entries,
        string id,
        string category,
        string labelTemplate,
        float fallbackStrength = 40f,
        bool fallbackCreatesInterest = false)
    {
        if (!string.IsNullOrEmpty(id) && entries != null && entries.TryGetValue(id.Trim(), out DiscreteEventEntry entry))
        {
            return entry;
        }

        string key = string.IsNullOrEmpty(id) ? "unknown" : id.Trim();
        return new DiscreteEventEntry
        {
            Id = key,
            EventStrength = fallbackStrength,
            Category = category,
            LabelTemplate = labelTemplate,
            CreatesInterest = fallbackCreatesInterest,
            IsFallback = true
        };
    }
}