using HarmonyLib;
using rjw;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection.Emit;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Verse;

namespace rjwquirks.HarmonyPatches
{
    [HarmonyPatch(typeof(Hediff_PartBaseNatural))]
    public class Patch_Hediff_PartBaseNatural
    {
        [HarmonyTranspiler]
        [HarmonyPatch(nameof(Hediff_PartBaseNatural.Tick))]
        public static IEnumerable<CodeInstruction> ChangeMaxEggsSize(IEnumerable<CodeInstruction> instructions)
        {
            FieldInfo Pawn = AccessTools.Field(typeof(Hediff_PartBaseNatural), nameof(Hediff_PartBaseNatural.pawn));
            MethodInfo EggSize = AccessTools.Method(typeof(Patch_Hediff_PartBaseNatural), nameof(EditMaxEggsSize));
            bool found = false;

            foreach (CodeInstruction i in instructions)
            {
                if (i.opcode == OpCodes.Ldc_R4 && i.operand as string == "0.0" && found)
                {
                    yield return new CodeInstruction(OpCodes.Ldfld, Pawn);
                    yield return new CodeInstruction(OpCodes.Ldloc_3);
                    yield return new CodeInstruction(OpCodes.Call, EggSize);
                }

                if (i.opcode == OpCodes.Ldc_R4 && i.operand as string == "0.0")
                    found = true;

                yield return i;
            }
        }

        public static void EditMaxEggsSize(Pawn pawn, float eggsSize)
        {
            if (pawn.GetQuirks() != null)
                pawn.GetQuirks().ApplyValueModifiers("maxEggsSize", ref eggsSize);
        }
    }
}