using HarmonyLib;
using RimWorld;
using rjw;
using rjw.Modules.Interactions.Internals.Implementation;
using rjw.Modules.Interactions.Objects;
using RJWSexperience.Ideology.HistoryEvents;
using RJWSexperience.Ideology.Precepts;
using System;
using System.Collections.Generic;
using System.Reflection.Emit;
using Verse;

namespace RJWSexperience.Ideology.Patches
{
	[HarmonyPatch(typeof(xxx), nameof(xxx.can_rape))]
	public static class RJW_Patch_CannotRapeBecauseIdeo
	{
		/// <summary>
		/// Injects IdeoCanRape call into is_human block of xxx.can_rape
		/// </summary>
		/// <param name="instructions">Original method instructions</param>
		/// <returns>Modified method instructions</returns>
		[HarmonyTranspiler]
		public static IEnumerable<CodeInstruction> AddIdeoCheck(IEnumerable<CodeInstruction> instructions, ILGenerator generator)
		{
			using IEnumerator<CodeInstruction> enumerator = instructions.GetEnumerator();

			System.Reflection.FieldInfo wildMode = AccessTools.Field(typeof(RJWSettings), nameof(RJWSettings.WildMode));
			Label labelWildMode = generator.DefineLabel();
			bool done = false;

			while (enumerator.MoveNext())
			{
				if (!done && enumerator.Current.LoadsField(wildMode))
				{
					// Found RJWSettings.WildMode check, insert before
					// Need to move labels to our instruction because previous check jumps to one of them, skipping our call
					var existingLabels = enumerator.Current.labels;
					enumerator.Current.labels = new List<Label>() { labelWildMode };
					// Load the first argument - Pawn
					yield return new CodeInstruction(OpCodes.Ldarg_0) { labels = existingLabels };
					// Call the check. Consumes pawn and pushes bool
					yield return CodeInstruction.Call(typeof(RJW_Patch_CannotRapeBecauseIdeo), nameof(IdeoCanRape));;
					// If bool is true, jump to the next check
					yield return new CodeInstruction(OpCodes.Brtrue_S, labelWildMode);
					// The bool was false, push false and exit the method
					yield return new CodeInstruction(OpCodes.Ldc_I4_0);
					yield return new CodeInstruction(OpCodes.Ret);
					done = true;
				}

				yield return enumerator.Current;
			}
		}

		public static bool IdeoCanRape(Pawn pawn) => RsiDefOf.HistoryEvent.RSI_Raped.CreateEvent(pawn).DoerWillingToDo();
	}

	[HarmonyPatch(typeof(xxx), nameof(xxx.is_rapist))]
	public static class RJW_Patch_is_rapist
	{
		public static void Postfix(Pawn pawn, ref bool __result)
		{
			Ideo ideo = pawn.Ideo;
			if (ideo != null && !pawn.IsSubmissive())
			{
				__result = __result || ideo.HasMeme(RsiDefOf.Meme.Rapist);
			}
		}
	}

	[HarmonyPatch(typeof(xxx), nameof(xxx.is_zoophile))]
	public static class RJW_Patch_is_zoophile
	{
		public static void Postfix(Pawn pawn, ref bool __result)
		{
			Ideo ideo = pawn.Ideo;
			if (ideo != null)
			{
				__result = __result || ideo.HasMeme(RsiDefOf.Meme.Zoophile);
			}
		}
	}

	[HarmonyPatch(typeof(xxx), nameof(xxx.is_necrophiliac))]
	public static class RJW_Patch_is_necrophiliac
	{
		public static void Postfix(Pawn pawn, ref bool __result)
		{
			Ideo ideo = pawn.Ideo;
			if (ideo != null)
			{
				__result = __result || ideo.HasMeme(RsiDefOf.Meme.Necrophile);
			}
		}
	}

	[HarmonyPatch(typeof(SexUtility), nameof(SexUtility.Aftersex), new Type[] { typeof(SexProps) })]
	public static class RJW_Patch_SexUtility_Aftersex_RecordHistoryEvents
	{
		public static void Postfix(SexProps props)
		{
			InteractionDefExtension_HistoryEvents interactionEvents = props.dictionaryKey.GetModExtension<InteractionDefExtension_HistoryEvents>();

			if (props.hasPartner())
			{
				if (xxx.is_human(props.pawn))
					AfterSexHuman(props.pawn, props.partner);
				if (xxx.is_human(props.partner))
					AfterSexHuman(props.partner, props.pawn);

				if (interactionEvents != null)
				{
					foreach (HistoryEventDef eventDef in interactionEvents.pawnEvents)
						eventDef.RecordEventWithPartner(props.pawn, props.partner);

					foreach (HistoryEventDef eventDef in interactionEvents.partnerEvents)
						eventDef.RecordEventWithPartner(props.partner, props.pawn);
				}
			}
			else
			{
				if (interactionEvents != null)
				{
					foreach (HistoryEventDef eventDef in interactionEvents.pawnEvents)
						Find.HistoryEventsManager.RecordEvent(eventDef.CreateEvent(props.pawn));
				}
			}
		}

		private static void AfterSexHuman(Pawn human, Pawn partner)
		{
			RsiDefOf.HistoryEvent.RSI_NonIncestuosSex.RecordEventWithPartner(human, partner);

			if (partner.IsAnimal())
				RsiDefOf.HistoryEvent.RSI_SexWithAnimal.RecordEventWithPartner(human, partner);
		}
	}

	/// <summary>
	/// Set prefer sextype using precepts
	/// </summary>
	[HarmonyPatch(typeof(InteractionScoringService), nameof(InteractionScoringService.Score), new Type[] { typeof(InteractionWithExtension), typeof(InteractionPawn), typeof(InteractionPawn) })]
	public static class RJW_Patch_DetermineSexScores
	{
		public static void Postfix(InteractionWithExtension interaction, InteractionPawn dominant, InteractionPawn submissive, ref InteractionScore __result)
		{
			InteractionDefExtension_HistoryEvents interactionEvents = interaction.Interaction.GetModExtension<InteractionDefExtension_HistoryEvents>();
			if (interactionEvents == null)
				return;

			if (dominant.Pawn.Ideo != null)
				__result.Dominant = PreceptSextype(dominant.Pawn, submissive.Pawn, __result.Dominant, interactionEvents.pawnEvents);

			if (submissive.Pawn.Ideo != null)
				__result.Submissive = PreceptSextype(submissive.Pawn, dominant.Pawn, __result.Submissive, interactionEvents.partnerEvents);
		}

		public static float PreceptSextype(Pawn pawn, Pawn partner, float score, List<HistoryEventDef> historyEventDefs)
		{
			for (int i = 0; i < historyEventDefs.Count; i++)
			{
				HistoryEventDef eventDef = historyEventDefs[i];

				if (eventDef.CreateEventWithPartner(pawn, partner).DoerWillingToDo())
				{
					float mult = 8.0f * Math.Max(0.3f, 1 / Math.Max(0.01f, pawn.GetStatValue(xxx.sex_drive_stat, cacheStaleAfterTicks: 60)));
					return score * mult;
				}
			}
			return score;
		}
	}

	[HarmonyPatch(typeof(SexAppraiser), nameof(SexAppraiser.would_fuck), new Type[] { typeof(Pawn), typeof(Pawn), typeof(bool), typeof(bool), typeof(bool) })]
	public static class RJW_Patch_would_fuck
	{
		public static void Postfix(Pawn fucker, Pawn fucked, ref float __result)
		{
			if (!xxx.is_human(fucker))
				return;

			Ideo ideo = fucker.Ideo;
			if (ideo == null)
				return;

			for(int i = 0; i < ideo.PreceptsListForReading.Count; i++)
				ideo.PreceptsListForReading[i].def.GetModExtension<DefExtension_ModifyPreference>()?.Apply(fucker, fucked, ref __result);
		}
	}

	[HarmonyPatch(typeof(PawnDesignations_Breedee), nameof(PawnDesignations_Breedee.UpdateCanDesignateBreeding))]
	public static class RJW_Patch_UpdateCanDesignateBreeding
	{
		public static void Postfix(Pawn pawn, ref bool __result)
		{
			Ideo ideo = pawn.Ideo;
			if (ideo?.HasMeme(RsiDefOf.Meme.Zoophile) == true)
			{
				SaveStorage.DataStore.GetPawnData(pawn).CanDesignateBreeding = true;
				__result = true;
			}
		}
	}

	[HarmonyPatch(typeof(PawnDesignations_Comfort))]
	public static class RJW_Patch_PawnDesignations_Comfort_Submissive
	{
		[HarmonyPostfix, HarmonyPatch(nameof(PawnDesignations_Comfort.UpdateCanDesignateComfort))]
		public static void UpdateCanDesignateComfort(Pawn pawn, ref bool __result)
		{
			if (pawn.IsSubmissive())
			{
				SaveStorage.DataStore.GetPawnData(pawn).CanDesignateComfort = true;
				__result = true;
			}
		}

		/// <summary>
		/// RJW undesignates if it thinks that the pawn can't be a comfort pawn.
		/// Why the hell checker method changes the state?
		/// </summary>
		/// <param name="pawn">Pawn to check</param>
		/// <param name="__result">Is pawn currenlty designated as comfort</param>
		/// <returns>Run the original method</returns>
		[HarmonyPrefix, HarmonyPatch(nameof(PawnDesignations_Comfort.IsDesignatedComfort))]
		public static bool IsDesignatedComfort(Pawn pawn, ref bool __result)
		{
			if (pawn.IsSubmissive() && !pawn.Dead)
			{
				__result = pawn.GetRJWPawnData().Comfort;
				return false;
			}

			return true;
		}
	}

	[HarmonyPatch(typeof(Hediff_BasePregnancy), nameof(Hediff_BasePregnancy.PostBirth))]
	public static class RJW_Patch_PostBirth
	{
		public static void Postfix(Pawn mother, Pawn baby)
		{
			if (!mother.IsAnimal())
			{
				Faction faction = baby.GetFactionUsingPrecept(out Ideo ideo);
				if (baby.Faction != faction)
					baby.SetFaction(faction);

				baby.ideo?.SetIdeo(ideo);

				if (baby.Faction == Find.FactionManager.OfPlayer && !baby.IsSlave)
					baby.guest?.SetGuestStatus(null, GuestStatus.Guest);
			}
		}

		private static Faction GetFactionUsingPrecept(this Pawn baby, out Ideo ideo)
		{
			Faction playerfaction = Find.FactionManager.OfPlayer;
			Ideo mainideo = playerfaction.ideos.PrimaryIdeo;
			if (mainideo != null)
			{
				if (mainideo.HasPrecept(RsiDefOf.Precept.BabyFaction_AlwaysFather))
				{
					Pawn parent = baby.GetFather() ?? baby.GetMother();

					ideo = parent.Ideo;
					return parent.Faction;
				}
				else if (mainideo.HasPrecept(RsiDefOf.Precept.BabyFaction_AlwaysColony))
				{
					ideo = mainideo;
					return playerfaction;
				}
			}
			Pawn mother = baby.GetMother();
			ideo = mother?.Ideo;
			return mother?.Faction ?? baby.Faction;
		}
	}

	[HarmonyPatch(typeof(SexUtility), nameof(SexUtility.SatisfyPersonal))]
	public static class RJW_Patch_Orgasm_IdeoConversion
	{
		public static void Postfix(SexProps props)
		{
			// ShortCuts: Exit Early if Pawn or Partner are null (can happen with Animals or Masturbation)
			if (props.pawn?.Ideo == null || !props.hasPartner())
				return;

			if (props.partner.Ideo?.HasPrecept(RsiDefOf.Precept.ProselyzingByOrgasm) == true)
			{
				// Pawn is the one having the orgasm
				// Partner is "giving" the orgasm, hence the pawn will be converted towards the partners ideology
				IdeoUtility.ConvertPawnBySex(props.pawn, props.partner, 0.03f);
			}
		}
	}
}