using System.Collections.Generic;
using System.Xml.Linq;

namespace Harmony.WorldBiomesPatches
{

    [HarmonyPatch(typeof(WorldBiomes))]
    [HarmonyPatch("readXML")]
    public class readXMLPatch
    {
        public static bool Prefix(WorldBiomes __instance, XDocument _xml, bool _instantiateReferences)
        {
            Array.Clear((Array)__instance.m_Id2BiomeArr, 0, __instance.m_Id2BiomeArr.Length);
            __instance.m_Color2BiomeMap.Clear();
            __instance.m_Name2BiomeMap.Clear();
            if (BiomeDefinition.nameToId == null)
                BiomeDefinition.nameToId = new Dictionary<string, byte>();
            foreach (XElement descendant in _xml.Descendants((XName)"biomemap"))
            {
                string attribute = descendant.GetAttribute((XName)"name");
                if (!BiomeDefinition.nameToId.ContainsKey(attribute))
                    BiomeDefinition.nameToId.Add(attribute, byte.Parse(descendant.GetAttribute((XName)"id")));
            }
            foreach (XElement descendant in _xml.Descendants((XName)"biome"))
            {
                string attribute = descendant.GetAttribute((XName)"name");
                if (!BiomeDefinition.nameToId.ContainsKey(attribute))
                    throw new Exception("Parsing biomes. Biome with name '" + attribute + "' also needs an entry in the biomemap");
                BiomeDefinition biome = __instance.parseBiome(BiomeDefinition.nameToId[attribute], (byte)0, attribute, descendant, _instantiateReferences);
                __instance.m_Id2BiomeArr[(int)biome.m_Id] = biome;
                __instance.m_Color2BiomeMap.Add(biome.m_uiColor, biome);
                __instance.m_Name2BiomeMap.Add(biome.m_sBiomeName, biome);
            }
            BiomeParticleManager.RegistrationCompleted = true;
            foreach (XContainer descendant1 in _xml.Descendants((XName)"pois"))
            {
                foreach (XElement descendant2 in descendant1.Descendants((XName)"poi"))
                {
                    uint uint32 = Convert.ToUInt32(descendant2.GetAttribute((XName)"poimapcolor").Substring(1), 16);
                    int _iSO = 0;
                    int num = 0;
                    int _iST = 0;
                    if (descendant2.HasAttribute((XName)"surfaceoffset"))
                        _iSO = Convert.ToInt32(descendant2.GetAttribute((XName)"surfaceoffset"));
                    if (descendant2.HasAttribute((XName)"smoothness"))
                    {
                        int int32 = Convert.ToInt32(descendant2.GetAttribute((XName)"smoothness"));
                        num = int32 < 0 ? 0 : int32;
                    }
                    if (descendant2.HasAttribute((XName)"starttunnel"))
                    {
                        int int32 = Convert.ToInt32(descendant2.GetAttribute((XName)"starttunnel"));
                        _iST = int32 < 0 ? 0 : int32;
                    }
                    BlockValue _blockValue1 = BlockValue.Air;
                    if (descendant2.HasAttribute((XName)"blockname"))
                        _blockValue1 = _instantiateReferences ? __instance.getBlockValueForName(descendant2.GetAttribute((XName)"blockname")) : BlockValue.Air;
                    BlockValue _blockBelow = BlockValue.Air;
                    if (descendant2.HasAttribute((XName)"blockbelow"))
                        _blockBelow = _instantiateReferences ? __instance.getBlockValueForName(descendant2.GetAttribute((XName)"blockbelow")) : BlockValue.Air;
                    int _ypos = -1;
                    if (descendant2.HasAttribute((XName)"ypos"))
                        _ypos = int.Parse(descendant2.GetAttribute((XName)"ypos"));
                    int _yposFill = -1;
                    if (descendant2.HasAttribute((XName)"yposfill"))
                        _yposFill = int.Parse(descendant2.GetAttribute((XName)"yposfill"));
                    PoiMapElement poiMapElement = new PoiMapElement(uint32, descendant2.GetAttribute((XName)"prefab"), _blockValue1, _blockBelow, _iSO, _ypos, _yposFill, _iST);
                    __instance.m_PoiMap.Add(uint32, poiMapElement);
                    foreach (XElement element in descendant2.Elements())
                    {
                        if (element.Name == (XName)"decal")
                        {
                            int int32_1 = Convert.ToInt32(element.GetAttribute((XName)"texture"));
                            BlockFace int32_2 = (BlockFace)Convert.ToInt32(element.GetAttribute((XName)"face"));
                            float _prob = StringParsers.ParseFloat(element.GetAttribute((XName)"prob"));
                            poiMapElement.decals.Add(new PoiMapDecal(int32_1, int32_2, _prob));
                        }
                        if (element.Name == (XName)"blockontop")
                        {
                            BlockValue _blockValue2 = _instantiateReferences ? __instance.getBlockValueForName(element.GetAttribute((XName)"blockname")) : BlockValue.Air;
                            float _prob = StringParsers.ParseFloat(element.GetAttribute((XName)"prob"));

                            if (element.GetAttribute((XName)"blockname") == "carsRandomHelperBiome")
                            {
                                string name = descendant2.GetAttribute((XName)"name");
                                float multiplier = 1;

                                if (name == "City Asphalt")
                                {
                                    multiplier = 2.67f;
                                }
                                else if (name == "Country Road Asphalt")
                                {
                                    multiplier = 1.335f;
                                }
                                else if (name == "Road Gravel")
                                {
                                    multiplier = 1f;
                                }

                                //Log.Out("WorldBiomesPatches-readXML name: " + name);
                                //Log.Out("WorldBiomesPatches-readXML BEFORE _prob: " + _prob);
                                //Log.Out("WorldBiomesPatches-readXML multiplier: " + multiplier);
                                _prob = _prob * multiplier * (float.Parse(RebirthVariables.customVehicleDensityMultiplier) / 100);
                                //Log.Out("WorldBiomesPatches-readXML AFTER _prob: " + _prob);
                            }

                            int _offset = element.HasAttribute((XName)"offset") ? int.Parse(element.GetAttribute((XName)"offset")) : 0;
                            poiMapElement.blocksOnTop.Add(new PoiMapBlock(_blockValue2, _prob, _offset));
                        }
                    }
                }
            }

            return false;
        }
    }
}