using HarmonyLib;
using RimWorld;
using rjw;
using rjwquirks.Modules.Quirks;
using rjwquirks.Modules.Shared.Events;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
using System.Text;
using System.Threading.Tasks;
using Verse;

namespace rjwquirks.HarmonyPatches
{
    [HarmonyPatch(typeof(SexUtility))]
    public class Patch_SexUtility
    {
        // Increases cum filth generated by pawn
        [HarmonyPostfix]
        [HarmonyPatch(nameof(SexUtility.CumOutputModifier))]
        public static void FilthAdder(Pawn pawn, ref float __result)
        {
            if(pawn.GetQuirks() != null)
                pawn.GetQuirks().ApplyValueModifiers("cumFilthAmount", ref __result);
        }

        // Change how much the pawn wants to clean post sex
        [HarmonyTranspiler]
        [HarmonyPatch(nameof(SexUtility.ConsiderCleaning))]
        static IEnumerable<CodeInstruction> ConsiderCleanup(IEnumerable<CodeInstruction> instructions)
        {
            FieldInfo PawnNeeds = AccessTools.Field(typeof(Pawn), nameof(Pawn.needs));
            MethodInfo Cleanup = AccessTools.Method(typeof(Patch_SexUtility), nameof(CleanupChanceAdjuster));

            bool found = false;

            foreach (CodeInstruction i in instructions)
            {
                if (found)
                {
                    yield return i;
                    yield return new CodeInstruction(OpCodes.Ldloc_0);
                    yield return new CodeInstruction(OpCodes.Ldarg_0);
                    yield return new CodeInstruction(OpCodes.Call, Cleanup);
                    found = false;
                    continue;
                }

                if (i.opcode == OpCodes.Ldfld && i.operand as FieldInfo == PawnNeeds)
                    found = true;

                yield return i;
            }
        }

        public static void CleanupChanceAdjuster(float chance, Pawn pawn)
        {
            pawn.GetQuirks().ApplyValueModifiers("cleanAfterFapChance", ref chance);
        }

        // Change satisfaction from sex
        [HarmonyPostfix]
        [HarmonyPatch(nameof(SexUtility.GetExtraSatisfaction))]
        public static void Satisfaction(SexProps props, ref float __result)
        {
            var quirkCount = props.pawn.GetQuirks().GetSatisfiedBySex(props).Count();

            if (quirkCount > 0)
            {
                __result += props.pawn.GetQuirks().GetSatisfiedBySex(props).Count() * 0.20f;
                RjwEventManager.NotifyEvent(new RjwEvent(RjwEventDefOf.Orgasm, props.Named(RjwEventArgNames.SexProps), __result.Named(RjwEventArgNames.Satisfaction)));
            }
        }

        // Change ticks to next lovin
        [HarmonyTranspiler]
        [HarmonyPatch(nameof(SexUtility.GenerateMinTicksToNextLovin))]
        public static IEnumerable<CodeInstruction> ChangeTicksToNextLovin(IEnumerable<CodeInstruction> instructions)
        {
            MethodInfo SexDrive = AccessTools.Method(typeof(xxx), nameof(xxx.get_sex_drive));
            MethodInfo AdjustTicks = AccessTools.Method(typeof(Patch_SexUtility), nameof(AdjustTicksToNextLovin));
            bool found = false;

            foreach (var i in instructions)
            {
                if (found)
                {
                    yield return i;
                    yield return new CodeInstruction(OpCodes.Ldloc_0);
                    yield return new CodeInstruction(OpCodes.Ldarg_0);
                    yield return new CodeInstruction(OpCodes.Call, AdjustTicks);
                    found = false;
                    continue;
                }

                if (i.opcode == OpCodes.Call && i.operand as MethodInfo == SexDrive)
                    found = true;

                yield return i;
            }
        }

        public static void AdjustTicksToNextLovin(float ticks, Pawn pawn)
        {
            if (pawn.GetQuirks() != null)
            {
                pawn.GetQuirks().ApplyValueModifiers("ticksToNextLovin", ref ticks);
            }
        }

        // Rest adjustments
        [HarmonyTranspiler]
        [HarmonyPatch(nameof(SexUtility.reduce_rest))]
        public static IEnumerable<CodeInstruction> AdjustRest(IEnumerable<CodeInstruction> instructions)
        {
            MethodInfo Adjustment = AccessTools.Method(typeof(Patch_SexUtility), nameof(AdjustRestFromQuirk));
            bool found = false;
            bool completed = false;

            foreach (CodeInstruction i in instructions)
            {
                if (found && !completed)
                {
                    yield return new CodeInstruction(OpCodes.Ldarg_0);
                    yield return new CodeInstruction(OpCodes.Ldarg_1);
                    yield return new CodeInstruction(OpCodes.Call, Adjustment);
                    completed = true;
                    found = false;
                }

                if (i.opcode == OpCodes.Dup)
                    found = true;

                yield return i;
            }
        }

        public static void AdjustRestFromQuirk(Pawn pawn, float x)
        {
            if(pawn.GetQuirks() != null)
                pawn.GetQuirks().ApplyValueModifiers("reduceRest", ref x);
        }
    }
}