using System;
using System.Globalization;
using System.IO;
using System.Linq;
using HarmonyLib;

namespace CLre.Fixes
{
    [Bugfix(name = "AntiStupidFloats",
        description = "Force language-agnostic float->string behaviour internally, like all programs should (DISABLED BY DEFAULT)",
        component = BugfixType.Initialiser, id = 10)]
    public static class FloatLanguageFix
    {
        public static bool Enabled { private set; get; } = false;

        public static void Init()
        {
            string[] args = Environment.GetCommandLineArgs();
            if (args.Contains("-ff", StringComparer.InvariantCultureIgnoreCase)
                || args.Contains("--float-fix", StringComparer.InvariantCultureIgnoreCase)
                || File.Exists("floatFix.txt")
                || File.Exists("whateverFloatsYourBoat"))
            {
                Enabled = true;
            }
            else
            {
                CultureInfo ci = CultureInfo.CurrentUICulture;
                if (ci.TwoLetterISOLanguageName.ToLower() != "en")
                {
                    API.Utility.Logging.LogWarning(
                        $"CLre detected non-English language {ci.DisplayName} ({ci.Name}/{ci.TwoLetterISOLanguageName}). " +
                               "CardLife works best with the Windows language set to English. " +
                               "If you run into bugs, try launching CardLife with the launch options set to \"%command% --float-fix\", without quotes. " +
                               "Please also report the issue to NGnius (ngniusness@gmail.com or NGnius#0864 on the CL Discord server) or on Trello (https://trello.com/b/EGKEpfBF/cardlife-bugs), so the problem can be fixed properly.");
                }
            }
        }
    }

    [Bugfix(name = "AntiStupidFloats",
        description = "Force language-agnostic float->string behaviour internally, like all programs should (DISABLED BY DEFAULT)",
        component = BugfixType.HarmonyPatch, id = 10)]
    [HarmonyPatch(typeof(float), "ToString", new Type[] { })]
    class Float_ToString0_Patch
    {
        [HarmonyPostfix] // prefix causes a crash for some reason...
        public static void AfterMethodCall(float __instance, ref string __result)
        {
            if (!FloatLanguageFix.Enabled) return;
            API.Utility.Logging.LogWarning($"Intercepting float.ToString() to InvariantCulture equivalent\nStackTrace: {Environment.StackTrace}");
            __result = __instance.ToString(CultureInfo.InvariantCulture);
        }
    }
    
    [Bugfix(name = "EnchantmentTableFloatParseFix",
        description = "Make all float parsing culture-invariant",
        component = BugfixType.HarmonyPatch, id = 1)]
    [HarmonyPatch(typeof(float), "ToString", new Type[] { typeof(string)})]
    class Float_ToString1_Patch
    {
        [HarmonyPostfix]
        public static void AfterMethodCall(string format, float __instance, ref string __result)
        {
            if (!FloatLanguageFix.Enabled) return;
            API.Utility.Logging.LogWarning($"Intercepting float.ToString(\"{format}\") to InvariantCulture equivalent\nStackTrace: {Environment.StackTrace}");
            __result = __instance.ToString(format, CultureInfo.InvariantCulture);
        }
    }
}