using NCalc;
using System.Xml.Linq;

namespace Harmony.XmlPatchConditionEvaluatorPatches
{
    [HarmonyPatch(typeof(XmlPatchConditionEvaluator))]
    [HarmonyPatch("NCalcEvaluateFunction")]
    public class NCalcEvaluateFunctionPatch
    {
        public static void isediting(FunctionArgs _args, bool invert = false)
        {
            bool result = GameModeEditWorld.TypeName.Equals(GamePrefs.GetString(EnumGamePrefs.GameMode));
            //Log.Out("XmlPatchConditionEvaluatorPatches-isediting result: " + result);

            if (invert)
            {
                result = !result;
            }

            _args.Result = result;
        }

        public static void scenario_selected(FunctionArgs _args, bool invert = false)
        {
            if (_args.Parameters.Length != 1)
                throw new ArgumentException(string.Format("Calling function {0} with invalid number of arguments ({1}, expected {2})", (object)nameof(scenario_selected), (object)_args.Parameters.Length, (object)1));
            if (!(_args.Parameters[0].Evaluate() is string str))
                throw new ArgumentException("Calling function scenario_selected: Expected string argument");

            //Log.Out("XmlPatchConditionEvaluatorPatches-scenario_selected str: " + str);
            //Log.Out("XmlPatchConditionEvaluatorPatches-scenario_selected RebirthVariables.customScenario: " + RebirthVariables.customScenario);

            bool result = RebirthVariables.customScenario == str.Trim();

            if (invert)
            {
                result = !result;
            }

            _args.Result = result;
        }

        public static bool Prefix(string _name, FunctionArgs _args, bool _ignoreCase)
        {
            //Log.Out("XmlPatchConditionEvaluatorPatches-NCalcEvaluateFunction _name: " + _name);

            if (_name.EqualsCaseInsensitive("isediting"))
                isediting(_args);

            if (_name.EqualsCaseInsensitive("isnotediting"))
                isediting(_args, true);

            if (_name.EqualsCaseInsensitive("rebirth_scenario"))
                scenario_selected(_args);

            if (_name.EqualsCaseInsensitive("not_rebirth_scenario"))
                scenario_selected(_args, true);

            return true;
        }
    }
}