using System;
using ai.behaviours;
using HarmonyLib;

namespace IdleSpectator;

/// <summary>Relationship lifecycle patches from mutation discovery.</summary>
[HarmonyPatch]
public static class RelationshipEventPatches
{
    [HarmonyPatch(typeof(Actor), nameof(Actor.setLover))]
    [HarmonyPostfix]
    public static void PostfixSetLover(Actor __instance, Actor pActor)
    {
        if (__instance == null || !__instance.isAlive())
        {
            return;
        }

        if (pActor == null)
        {
            RelationshipInterestFeed.Emit("clear_lover", __instance, null);
            return;
        }

        RelationshipInterestFeed.Emit("set_lover", __instance, pActor);
    }

    [HarmonyPatch(typeof(Actor), nameof(Actor.addChild))]
    [HarmonyPostfix]
    public static void PostfixAddChild(Actor __instance, object pObject)
    {
        Actor child = ResolveRelatedActor(pObject);
        if (__instance == null || child == null)
        {
            return;
        }

        RelationshipInterestFeed.Emit("add_child", __instance, child);
    }

    [HarmonyPatch(typeof(Actor), "addChildSimple")]
    [HarmonyPostfix]
    public static void PostfixAddChildSimple(Actor __instance, object pObject)
    {
        Actor child = ResolveRelatedActor(pObject);
        if (__instance == null || child == null)
        {
            return;
        }

        RelationshipInterestFeed.Emit("add_child", __instance, child);
    }

    private static Actor ResolveRelatedActor(object raw)
    {
        if (raw == null)
        {
            return null;
        }

        if (raw is Actor actor)
        {
            return actor;
        }

        try
        {
            if (raw is BaseSimObject sim && sim.isActor())
            {
                return sim.a;
            }
        }
        catch
        {
            // fall through
        }

        try
        {
            var type = raw.GetType();
            foreach (string name in new[] { "actor", "Actor", "a", "parent" })
            {
                var prop = type.GetProperty(name);
                if (prop != null && typeof(Actor).IsAssignableFrom(prop.PropertyType))
                {
                    return prop.GetValue(raw, null) as Actor;
                }

                var field = type.GetField(name);
                if (field != null && typeof(Actor).IsAssignableFrom(field.FieldType))
                {
                    return field.GetValue(raw) as Actor;
                }
            }

            var getActor = type.GetMethod("getActor", Type.EmptyTypes)
                           ?? type.GetMethod("GetActor", Type.EmptyTypes);
            if (getActor != null && typeof(Actor).IsAssignableFrom(getActor.ReturnType))
            {
                return getActor.Invoke(raw, null) as Actor;
            }
        }
        catch
        {
            // ignore
        }

        return null;
    }

    [HarmonyPatch(typeof(FamilyManager), nameof(FamilyManager.newFamily))]
    [HarmonyPostfix]
    public static void PostfixNewFamily(Family __result, Actor pActor)
    {
        Actor anchor = pActor != null && pActor.isAlive() ? pActor : null;
        RelationshipInterestFeed.EmitFamily("new_family", __result, anchor);
    }

    [HarmonyPatch(typeof(FamilyManager), "removeObject", new Type[] { typeof(Family) })]
    [HarmonyPostfix]
    public static void PostfixRemoveFamily(Family pObject)
    {
        RelationshipInterestFeed.EmitFamily("family_removed", pObject, null);
    }

    [HarmonyPatch(typeof(ActorManager), "createBabyActorFromData")]
    [HarmonyPostfix]
    public static void PostfixCreateBaby(Actor __result)
    {
        if (__result == null || !__result.isAlive())
        {
            return;
        }

        RelationshipInterestFeed.Emit("baby_created", __result, null);
    }

    [HarmonyPatch(typeof(BehFindLover), nameof(BehFindLover.execute))]
    [HarmonyPostfix]
    public static void PostfixFindLover(Actor pActor, BehResult __result)
    {
        if (pActor == null || !pActor.isAlive() || __result == BehResult.Stop)
        {
            return;
        }

        RelationshipInterestFeed.Emit("find_lover", pActor, null);
    }

    [HarmonyPatch(typeof(BehFamilyGroupNew), nameof(BehFamilyGroupNew.execute))]
    [HarmonyPostfix]
    public static void PostfixFamilyNew(Actor pActor, BehResult __result)
    {
        if (pActor == null || !pActor.isAlive() || __result == BehResult.Stop)
        {
            return;
        }

        RelationshipInterestFeed.Emit("family_group_new", pActor, ActorRelation.ResolvePackRelated(pActor));
    }

    [HarmonyPatch(typeof(BehFamilyGroupJoin), nameof(BehFamilyGroupJoin.execute))]
    [HarmonyPostfix]
    public static void PostfixFamilyJoin(Actor pActor, BehResult __result)
    {
        if (pActor == null || !pActor.isAlive() || __result == BehResult.Stop)
        {
            return;
        }

        RelationshipInterestFeed.Emit("family_group_join", pActor, ActorRelation.ResolvePackRelated(pActor));
    }

    [HarmonyPatch(typeof(BehFamilyGroupLeave), nameof(BehFamilyGroupLeave.execute))]
    [HarmonyPostfix]
    public static void PostfixFamilyLeave(Actor pActor, BehResult __result)
    {
        if (pActor == null || !pActor.isAlive() || __result == BehResult.Stop)
        {
            return;
        }

        RelationshipInterestFeed.Emit("family_group_leave", pActor, ActorRelation.ResolvePackRelated(pActor));
    }
}