using UnityEngine;

namespace IdleSpectator;

/// <summary>Registers book creation/burn interest candidates.</summary>
public static class BookInterestFeed
{
    public static void Emit(string bookTypeId, Actor subject, string phase)
    {
        if (AgentHarness.Busy)
        {
            return;
        }

        DiscreteEventEntry entry = BookInterestCatalog.GetOrFallback(bookTypeId);
        if (!entry.CreatesInterest)
        {
            return;
        }

        Actor follow = subject;
        if (follow == null || !follow.isAlive())
        {
            // Book without a living author: skip rather than invent a stranger.
            return;
        }

        string label = entry.MakeLabel(EventFeedUtil.SafeName(follow), phase ?? "");
        if (!string.IsNullOrEmpty(phase) && phase == "burn")
        {
            label = "Book burned: " + EventFeedUtil.SafeName(follow);
        }

        string key = "book:" + entry.Id + ":" + (phase ?? "new") + ":" + EventFeedUtil.SafeId(follow);
        InterestOwnership owns = phase == "burn" ? InterestOwnership.Signal : entry.OwnsCamera;
        float strength = phase == "burn" ? Mathf.Max(entry.EventStrength, 70f) : entry.EventStrength;
        EventFeedUtil.Register(
            key,
            "book",
            entry.Category,
            label,
            entry.Id,
            strength,
            owns,
            follow.current_position,
            follow);
    }

    public static void EmitFromBook(object book, string phase)
    {
        if (book == null)
        {
            return;
        }

        string typeId = "unknown";
        Actor author = null;
        try
        {
            object asset = book.GetType().GetField("asset")?.GetValue(book)
                           ?? book.GetType().GetProperty("asset")?.GetValue(book, null)
                           ?? book.GetType().GetMethod("getAsset")?.Invoke(book, null);
            if (asset != null)
            {
                object id = asset.GetType().GetField("id")?.GetValue(asset)
                            ?? asset.GetType().GetProperty("id")?.GetValue(asset, null);
                if (id != null)
                {
                    typeId = id.ToString();
                }
            }

            author = book.GetType().GetField("author")?.GetValue(book) as Actor
                     ?? book.GetType().GetProperty("author")?.GetValue(book, null) as Actor
                     ?? book.GetType().GetMethod("getAuthor")?.Invoke(book, null) as Actor;
        }
        catch
        {
            // ignore
        }

        Emit(typeId, author, phase);
    }
}