using System;
using System.Collections;
using System.Reflection;
using UnityEngine;

namespace IdleSpectator;

/// <summary>
/// Registers plot interest from Harmony hooks and World.plots polling.
/// Active plots with a target kingdom use sticky PlotCell tips; begin/end stay FixedDwell.
/// </summary>
public static class PlotInterestFeed
{
    public static void Emit(string plotAssetId, Actor subject, string phase)
    {
        if (!AgentHarness.LiveFeedsAllowed)
        {
            return;
        }

        DiscreteEventEntry entry = EventCatalog.Plot.GetOrFallback(plotAssetId);
        if (!EventCatalog.IsCameraWorthy(entry))
        {
            InterestDropLog.Record("createsInterest=false", "plot");
            return;
        }

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

        string label = EventReason.Plot(follow, entry.LabelTemplate, phase, entry.Id);
        string key = "plot:" + entry.Id + ":" + (phase ?? "active") + ":" + EventFeedUtil.SafeId(follow);
        EventFeedUtil.Register(
            key,
            "plot",
            entry.Category,
            label,
            entry.Id,
            entry.EventStrength,
            follow.current_position,
            follow);
    }

    public static void EmitFromPlot(object plot, string phase)
    {
        if (plot == null || !AgentHarness.LiveFeedsAllowed)
        {
            return;
        }

        TryRegisterPlot(plot, phase ?? "active");
    }

    public static void Tick()
    {
        if (!AgentHarness.LiveFeedsAllowed)
        {
            return;
        }

        IEnumerable plots = ResolvePlotsEnumerable();
        if (plots == null)
        {
            return;
        }

        int registered = 0;
        foreach (object plot in plots)
        {
            if (plot == null || registered >= 8)
            {
                break;
            }

            if (TryRegisterPlot(plot, "active"))
            {
                registered++;
            }
        }
    }

    private static bool TryRegisterPlot(object plot, string phase)
    {
        string assetId = ReadPlotAssetId(plot);
        DiscreteEventEntry entry = EventCatalog.Plot.GetOrFallback(assetId);
        if (!EventCatalog.IsCameraWorthy(entry))
        {
            InterestDropLog.Record("createsInterest=false", "plot:" + (assetId ?? ""));
            return false;
        }

        string phaseKey = string.IsNullOrEmpty(phase) ? "active" : phase;
        LiveEnsemble ensemble = null;
        if (plot is Plot typedPlot && phaseKey == "active")
        {
            LiveEnsemble.TryBuildPlot(typedPlot, out ensemble);
        }

        Actor follow = ensemble?.Focus ?? ReadPlotAuthor(plot);
        Actor related = ensemble?.Related;
        if (follow == null || !follow.isAlive())
        {
            return false;
        }

        Vector3 position = Vector3.zero;
        try
        {
            position = follow.current_position;
        }
        catch
        {
            position = Vector3.zero;
        }

        string plotId = "";
        if (plot is Plot pId)
        {
            try
            {
                plotId = pId.getID().ToString();
            }
            catch
            {
                plotId = "";
            }
        }

        string key = "plot:" + phaseKey + ":" + (plotId ?? "") + ":" + (entry.Id ?? assetId ?? "plot")
                     + ":" + EventFeedUtil.SafeId(follow);
        string label;
        InterestCompletionKind completion = InterestCompletionKind.FixedDwell;
        float minWatch = 6f;
        float maxWatch = 28f;
        string registerAsset = entry.Id;
        float strength = entry.EventStrength;

        if (ensemble != null && phaseKey == "active")
        {
            label = EventReason.PlotCell(ensemble);
            if (string.IsNullOrEmpty(label))
            {
                label = EventReason.Ensemble(ensemble);
            }

            completion = InterestCompletionKind.PlotActive;
            registerAsset = "live_plot";
            minWatch = 8f;
            maxWatch = 40f;
            strength = Mathf.Max(strength, 86f);
        }
        else
        {
            label = EventReason.Plot(follow, entry.LabelTemplate, phaseKey, entry.Id);
        }

        InterestCandidate registered = EventFeedUtil.Register(
            key,
            "plot",
            entry.Category,
            label,
            registerAsset,
            strength,
            position,
            follow,
            related: related,
            minWatch: minWatch,
            maxWatch: maxWatch,
            completion: completion);
        if (registered == null)
        {
            return false;
        }

        if (ensemble != null)
        {
            registered.CorrelationKey = key;
            StickyScoreboard.TryLockFromEnsemble(registered.Sticky, ensemble);
            StickyScoreboard.Refresh(
                registered,
                ensemble,
                position,
                StickyScoreboard.PlotTheaterRadius);
            registered.Label = EventReason.PlotCell(ensemble);
            if (string.IsNullOrEmpty(registered.Label))
            {
                registered.Label = label;
            }

            registered.ParticipantCount = ensemble.ParticipantCount;
            registered.AssetId = "live_plot";
            InterestScoring.ScoreCheap(registered);
        }

        return true;
    }

    private static IEnumerable ResolvePlotsEnumerable()
    {
        try
        {
            object world = World.world;
            if (world == null)
            {
                return null;
            }

            object plots = world.GetType().GetField("plots")?.GetValue(world)
                           ?? world.GetType().GetProperty("plots")?.GetValue(world, null);
            if (plots is IEnumerable direct)
            {
                return direct;
            }

            object manager = world.GetType().GetField("plots_manager")?.GetValue(world)
                             ?? world.GetType().GetProperty("plots_manager")?.GetValue(world, null)
                             ?? typeof(PlotManager);
            if (manager is Type)
            {
                manager = null;
            }

            object mapBox = MapBox.instance;
            if (manager == null && mapBox != null)
            {
                manager = mapBox.GetType().GetField("plots")?.GetValue(mapBox)
                          ?? mapBox.GetType().GetProperty("plots")?.GetValue(mapBox, null);
            }

            if (manager == null)
            {
                return null;
            }

            MethodInfo getAll = manager.GetType().GetMethod("getSimpleList")
                                ?? manager.GetType().GetMethod("getList")
                                ?? manager.GetType().GetMethod("getPlots");
            if (getAll != null)
            {
                return getAll.Invoke(manager, null) as IEnumerable;
            }

            return manager as IEnumerable;
        }
        catch
        {
            return null;
        }
    }

    private static string ReadPlotAssetId(object plot)
    {
        try
        {
            object asset = plot.GetType().GetField("asset")?.GetValue(plot)
                           ?? plot.GetType().GetProperty("asset")?.GetValue(plot, null)
                           ?? plot.GetType().GetMethod("getAsset")?.Invoke(plot, null);
            if (asset != null)
            {
                object id = asset.GetType().GetField("id")?.GetValue(asset)
                            ?? asset.GetType().GetProperty("id")?.GetValue(asset, null);
                if (id != null)
                {
                    return id.ToString();
                }
            }

            object typeId = plot.GetType().GetField("type")?.GetValue(plot)
                            ?? plot.GetType().GetProperty("type")?.GetValue(plot, null);
            return typeId?.ToString() ?? "unknown";
        }
        catch
        {
            return "unknown";
        }
    }

    private static Actor ReadPlotAuthor(object plot)
    {
        try
        {
            object author = plot.GetType().GetField("author")?.GetValue(plot)
                            ?? plot.GetType().GetProperty("author")?.GetValue(plot, null)
                            ?? plot.GetType().GetMethod("getAuthor")?.Invoke(plot, null)
                            ?? plot.GetType().GetField("founder")?.GetValue(plot);
            return author as Actor;
        }
        catch
        {
            return null;
        }
    }
}